TurboChef Residential Single and Double Wall Oven, TDO30, DWO Gen 1, DWO, SWO Service Manual

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Accelerating the World of Cooking

Service Manual

  ®      

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For further information, call

866.447.3783 or

+1 214.379.6000

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 e information contained in this manual is important for the proper installation, use, maintenance, and repair of this oven. Follow these procedures and instructions to help ensure satisfactory baking results and years of trouble-free service.

Errors – descriptive, typographic, or pictorial – are subject to correction. Speciﬁ cations are subject to change without notice.

PLEASE CAREFULLY READ THIS MANUAL AND RETAIN IT FOR FUTURE REFERENCE.

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Table Of Contents

Safety Instructions

Safety Precautions i To Reduce the Risk of Fire in the Cook Cavity ii Precautions to be Observed Before and During Servicing to Avoid Possible Exposure to Excessive Microwave Energy ii Grounding Instructions ii Do Not Touch Heating Elements or Interior Surfaces of Oven ii Power Connections ii Self-Cleaning Oven Guidelines ii RF Interference Considerations iii

Section 1 - Speci cations and Installation

 eory of Operation 1.1 Catalytic Converter 1.1 Certiﬁ cations 1.1 Electrical Speciﬁ cations 1.1 Dimensions - Double Wall Oven 1.2 Dimensions - Single Wall Oven 1.2 Installation 1.3 Installation Safety Instructions 1.3 Double Wall Oven Cabinet Dimensions 1.5 Single Wall Oven Cabinet Dimensions 1.5 Installing the Oven 1.5

Section 2 - Oven Controls and Cooking - The Speedcook Oven

Speedcook Oven Controls 2.1 Cook Modes 2.2 Air-Crisp 2.2 Bake 2.2 Broil 2.2 Dehydrate 2.2 Favorites 2.2 Roast 2.3 Toast 2.3 Favorites Cooking 2.3 Cooking a Recently Prepared Dish 2.3 Cooking a ”Favorite” Dish 2.3 Using the Convection Bake Function 2.4 Using the Defrost Function 2.4 Using the Microwave Function 2.4 Basic Cooking 2.5 Mode 1: Oven Oﬀ 2.5 Mode 2: Select a Food Item 2.5

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Mode 3: Conﬁ rm Settings 2.6 Mode 4: Preheat 2.6 Mode 5: Ready to Cook 2.6 Mode 6: Cooking 2.6 Mode 7: 80% Complete 2.6 Mode 8: 100% Complete 2.7 Mode 9: Remove Food from Oven 2.7 Adjusting a Recipe’s Cook Time 2.8 Adjusting a Cook Temperature 2.8  e Advanced Cook Mode 2.8 Saving to Favorites 2.9 Renaming a Dish (in Favorites) 2.10 Deleting a Dish (from Favorites) 2.10 Reheat Setting 2.10 Self-Clean Mode - Speedcook Oven 2.10

Section 3 - Oven Controls and Cooking - Lower Oven (Double-Wall Oven Only)

Lower Oven Controls 3.1 Cook Modes 3.2 Bake 3.2 Broil 3.2 Convection Bake 3.2 Convection Roast 3.2 Roast 3.2 Warm Setting 3.2 Proof Setting 3.2 Basic Cooking 3.3  e Sabbath Mode 3.3 Self Clean Mode 3.4

Section 4 - Info Mode

Overview of the Info Mode 4.1 Adjusting Oven Sounds 4.1 Adjusting Display Settings 4.2 Adjusting the Oven’s Units & Measurements 4.2 Accessing Help Topics and General Cooking Information 4.2 Updating the Oven Software 4.3 Backing Up/Restoring Favorites 4.3 Accessing the Version Information 4.4 Installer Setup 4.4 Top (or Single Wall) Oven Component Tests 4.4 Bottom Oven Component Tests 4.4 Oven Conﬁ guration 4.4 AC Voltage Conﬁ guration 4.4 Simulation/Demo State, and printf Mask 4.4

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Section 5 - Oven Systems

Convection System - Speedcook Oven 5.1 Blower Motor (Bottom) 5.1 Blower Motor (Top) 5.1 Blower Motor Controller (BMSC) 5.1 Heater Assembly 5.1 Jetplate (Bottom) 5.1 Jetplate (Top) 5.1 Stirrer Motor and Assembly 5.1 Convection System - Lower Oven (Double Wall Oven Only) 5.2 Broil Element 5.2 Bake Element 5.2 Convection Element 5.2 Convection Fan 5.2 Speedcook Oven Door 5.2 Removing/Reinstalling the Speedcook Oven Door 5.2 Door Skin Replacement 5.3 Left Lock Motor Assembly 5.3 Right Lock Motor Assembly 5.3 Measuring RF Leakage for Microwave Safety 5.4 Halogen Light Assembly 5.5 Lower Oven Door (Double Wall Oven Only) 5.5 Removing/Reinstalling the Lower Oven Door 5.5 Halogen Bulb Replacement 5.6 Microwave System 5.6 Doubler Circuit, Voltage 5.6 High-Voltage Capacitors 5.6 High-Voltage Diode 5.6 High-Voltage Transformers 5.7 Wiring a High-Voltage Transformer 5.7 Magnetrons 5.7 Stirrer Motor and Assembly 5.7 Waveguides 5.7 Control System 5.8 Air Switch (Single Wall Oven) 5.8 Clock 5.8 Control Board 5.8 CookWheel Control 5.8 Display, Lower Oven 5.8 Attaching the Lower Display Cable 5.8 Display, Speedcook Oven 5.9 Electrical Compartment Cooling Fans 5.9 EMI Filter 5.9 Fuses 5.9 High Limit  ermostats 5.9 Latch Mechanism (Lower Oven) 5.9 Light Switch, Control Panel 5.9

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M.O.V. Filter 5.9 Magnetron Cooling Fan 5.10 Magnetron  ermostats 5.10 Power Supply, 12 VDC 5.10 Power Supply, 24 VDC 5.10 Relay Board (Gen 2 Oven) 5.10 Relay - K2 Monitor (Gen 1 Oven) 5.10 Relay - K3 T1 HV Transformer (Gen 1 Oven) 5.10 Relay - K4 T2 HV Transformer (Gen 1 Oven) 5.10 Relay - K5 Mag Cooling Fan (Gen 1 Oven) 5.10 Relay - K6 Right Side Door Lock (Gen 1 Oven) 5.10 Relay - K7 Left Side Door Lock (Gen 1 Oven) 5.10 Relay - K8 Preheat (Gen 1 Oven) 5.10 Relay - K9 L2 Speedcook Heating Elements 5.11 Relay - K10 Lower Door Lock (Gen 1 Oven) 5.11 Relay - K13 L2 Lower Heating Elements (Double Wall Oven Only) 5.11 RJ Cables 5.11 RTD 5.11 SD Card 5.11 Selector Switches 5.11 Solid State Relay - K1 L1 Speedcook Heating Elements 5.12 Solid State Relay - K11 Bake and Convection Elements (Double Wall Oven Only) 5.12 Solid State Relay - K12 Broil Elements: Inner and Outer (Double Wall Oven Only) 5.12 Speaker 5.12 Temperature Switch 5.12 Transformer, Clock, 12 VAC 5.12  ermostat, Cook Cavity 5.12  ermostat, Cooling Fan Control 5.12 USB Port 5.12 Connecting the USB Board (Gen 1 Oven) 5.12 Wiring Harness 5.13 Exhaust System 5.13 Catalytic Converter 5.13 Exhaust Blower 5.13 Vent Catalyst 5.13

Section 6 - Troubleshooting

Overview of Troubleshooting 6.1 Error Screens 6.1 Oven Door Open (Gen 1) 6.1 Oven Door Open (Gen 2) 6.2 Cooling Fan Failure (Gen 1) 6.2 Cooling Fan Failure (Gen 2) 6.2 Temperature Control Failure 6.2 Magnetron Failure 6.3 Magnetron Failure Troubleshooting 6.3 Blower Failure 6.3 Blower Failure Troubleshooting 6.4

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Oven Over Temperature 6.4 Component Testing and Troubleshooting 6.4 Control System 6.4 Clock Assembly 6.4 Control Board 6.4 CookWheel Control (Speedcook Oven) 6.4 EMI Filter 6.5 Oven Mode Switch (Lower Oven) 6.5 Power Supply, 12 VDC 6.5 Power Supply, 24 VDC 6.5 RTD 6.6 Transformer, 12 VAC (Gen 1) 6.6 Transformer, 12 VAC (Gen 2) 6.6 Halogen Light System 6.7 Light Switch, Control Panel (Manual) 6.7 Light Switch, Speedcook Oven (Door Actuated) 6.7 One Speedcook Oven Light is Out 6.7 Both Speedcook Oven Lights are Out 6.7 Both Speedcook Oven and Both Lower Oven Lights are Out (Double Wall Oven) 6.7 Cooling System 6.7 Cooling Fan Overview (Gen 1) 6.7 Cooling Fan Overview (Gen 2) 6.8 Troubleshooting Cooling Fans (Gen 1) 6.8 Troubleshooting Cooling Fans (Gen 2) 6.9 Air Impingement Systems 6.9 Blower Motors, Speedcook Oven 6.9 Convection Fan, Lower Oven 6.10 Microwave System 6.10 Testing a Capacitor 6.10 Testing a High-Voltage Diode 6.10 Testing a High-Voltage Transformer 6.11 Testing a Magnetron for an Open/Shorted Filament 6.11 Heating System, Speedcook Oven 6.11 Heater Element, Speedcook Oven 6.12 No Heat 6.12 Oven is Heating up Very Slowly 6.12 Testing for Control Voltage to the K1 SSR 6.12 Testing for Control Voltage to the K8 Relay (Gen 1) 6.13 Testing Relay 14 (Pre-Heat) Operation (Gen 2) 6.13 Testing for a K9 Relay that is Stuck Open 6.13 Testing for a K1 SSR that is Stuck Open 6.13 Heating System, Lower Oven 6.13 Lower Oven Heating Element Speciﬁ cations 6.14 No Heat/Slow to Heat 6.14 Testing for Voltage to the K11 SSR 6.14 Testing for Voltage to the K12 SSR 6.14 Testing for a K11 SSR that is Stuck Open 6.15 Testing for a K12 SSR that is Stuck Open 6.15 Testing for a K13 Relay that is Stuck Open 6.15

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Section 7 - Schematics

Gen 1 Speedcook Oven Schematic 7.1 Gen 1 Bottom Oven Schematic 7.2 Gen 2 Speedcook Oven Schematic 7.3 Gen 2 Bottom Oven Schematic 7.4 Single Wall Oven Schematic 7.5 RWD/RWS Gen 2 Control Board 7.6 RWD/RWS Gen 2 Relay Board 7.7

Appendix - Replacing Oven Components

Comprehensive Table of Oven Components A.1 Component and Assembly Location, DWO Gen 1 and Gen 2 A.6 Removing the Oven A.6 Component and Assembly Location, SWO A.8 Removing the Oven A.8 Front Trim Assembly Detail A.10 Front Trim Assembly Removal A.10 Control Housing Detail A.12 Upper Electrical Compartment, DWO Gen 1 A.13 Diﬀ erentiating Between DWO Gen 1 and DWO Gen 2 A.13 Upper Electrical Compartment, DWO Gen 2 and SWO A.16 Diﬀ erentiating Between DWO Gen 1 and DWO Gen 2 A.16 Controls Assembly Detail, DWO Gen 1, DWO Gen 2, and SWO A.18 Mag Air Diverter Assembly Detail, DWO Gen 1, DWO Gen 2, and SWO A.20 Relay and Relay/Power Assembly Detail, DWO Gen 1, DWO Gen 2, and SWO A.21 Lower Electrical Compartment Detail, DWO Gen 1 and DWO Gen 2 A.22 Diﬀ erentiating Between DWO Gen 1 and DWO Gen 2 A.22 Speedcook Oven Cavity Component Detail, DWO Gen 1, DWO Gen 2, and SWO A.24 Lower Oven Cavity Component Detail, DWO Gen 1 and DWO Gen 2 A.28

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READ ALL INSTRUCTIONS BEFORE USING

WARNING: For your safety, the information in this manual must be followed to minimize the risk of ﬁ re or explosion, electric shock, or to prevent property damage, personal injury, loss of life, or excessive exposure to microwave energy.

Safety Precautions

When using electrical appliances, basic safety precautions should be followed, including the following:

WARNING: To reduce the risk of burns, electric shock, ﬁ re, injury to persons or exposure to microwave energy:

• Read all instructions before using this appliance.

• Read and follow “Precautions to Avoid Possible Exposure to Excessive Microwave Energy” outlined later on page ii.

•  is appliance must be grounded. See Grounding Instructions on page ii for further details.

• Install or locate this appliance only in accordance with the provided installation instructions. Be sure the appliance is properly installed and grounded by a qualiﬁ ed technician.

• Always place oven racks in desired location while the oven is cool. If rack must be moved while oven is hot, DO NOT let potholder contact hot heating element in the oven. Oversized foods or oversized metal utensils should not be inserted in a microwave/toaster oven as they may create a ﬁ re or risk of electric shock.

• Some products, such as whole eggs and sealed or unopened food containers – for example, sealed glass jars – may explode due to a build up of pressure and SHOULD NOT be heated in this oven.

• Use care when opening oven door – let hot air or steam escape before removing or replacing food.

• Use only microwaveable heat-resistant cookware – for example: Pyrex oven cooking utensils – in the Speedcook section of this appliance.

•  is appliance should be serviced only by qualiﬁ ed service personnel. Contact TurboChef Service (866-447-3783) for examination, repair, or adjustment.

Glassware, Stoneware, standard

Customer

• Use this appliance only for its intended purpose as described in this manual. DO NOT use corrosive chemicals or vapors in this appliance.  is oven is speciﬁ cally designed to heat or cook food and is not intended for laboratory or industrial use. DO NOT use the oven to warm or heat a room.

• DO NOT store ﬂ ammable materials in this oven or near surface units. DO NOT store any materials, other than manufacturer’s recommended accessories, in this oven when not in use.

• DO NOT attempt to repair or replace any part of this oven unless it is speciﬁ cally recommended in this manual or the Use and Care Guide.

• DO NOT use aluminum foil to cover contents, racks, or any part of the Speedcook oven. Prolonged use can cause overheating and damage the microwave components. Use in the bottom oven of a Double Wall oven is permissible; however, do not lay foil on the bottom of the oven.

• DO NOT use moist or damp potholders. Moist or damp potholders on hot surfaces may result in burns from steam. DO NOT let potholder touch hot heating elements. DO NOT use a towel or other bulky cloth.

• DO NOT allow children to operate without adult supervision. Children should not be left alone or unattended in the area where this appliance is in use.  ey should never be allowed to sit or stand on any part of the oven.

• DO NOT operate this appliance wearing looseﬁ tting or hanging garments.

• DO NOT operate this appliance if it has a damaged cord or plug, is not working properly, or has been damaged or dropped.

• DO NOT cover or block any openings on this appliance. Keep oven vent ducts unobstructed.

• DO NOT store this appliance outdoors.

• DO NOT use this appliance near water – e.g., in a wet basement or near a swimming pool.

• DO NOT use water on grease ﬁ res. Smother ﬁ re or ﬂ ame or use dry chemicals or foam extinguisher.

SAFETY INSTRUCTIONS

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SAFETY INSTRUCTIONSii

To Reduce the Risk of Fire in the Cook Cavity:

• Use only oven-suitable containers in the oven. DO NOT use paper products in either oven.

• Remove wire twist-ties from paper or plastic bags being placed in the oven. For oven cooking bags – DO NOT use wire twist-ties to close the bag.

• If materials inside the oven should ignite, keep the oven door closed, turn the oven oﬀ and shut oﬀ power at the fuse or circuit breaker panel. If the door is opened, the ﬁ re may spread.

• DO NOT cook items wrapped in cling wrap or

plastic ﬁ lm.

• DO NOT overcook food. Carefully attend to the oven if paper, plastic, or other combustible materials are placed inside the oven to facilitate cooking.

Precautions to be Observed Before and During Servicing to Avoid Possible Exposure to Excessive Microwave Energy

a) DO NOT operate or allow the oven to be operated with the door open. b) Make the following safety checks on all ovens to be serviced before activating the magnetron or other microwave source, and make repairs as necessary: (1) interlock operation, (2) proper door closing, (3) seal and sealing surfaces (arcing, wear, and other damage), (4) damage to or loosening of hinges and latches, (5) evidence of dropping or abuse. c) Before turning on microwave power for any service test or inspection within the microwave generating compartments, check the magnetron, wave guide or transmission line, and cavity for proper alignment, integrity, and connections. d) Any defective or misadjusted components in the interlock, monitor, door seal, and microwave generation and transmission systems shall be repaired, replaced, or adjusted by procedures described in this manual before the oven is released to the owner. e) A microwave leakage check to verify compliance with the Federal performance standard should be per formed on each oven prior to release to the owner.

Do Not Touch Heating Elements or Interior Surfaces of Oven

Heating elements may be hot even though they are dark in color. Interior surfaces of an oven become hot enough to cause burns. During and after use, do not touch, or let clothing or other ﬂ ammable materials contact heating elements or interior surfaces of oven until they have had suﬃ cient time to cool.

Power Connections

To avoid potential hazards, only the manufacturer, its service agent, or a similarly-qualiﬁ ed person should replace a damaged power cable. Flexible conduit, conductors and connectors are supplied by the manufacturer.  e oven must be connected using the ﬂ exible conduit and conductors provided.

Self-Cleaning Oven Guidelines

Clean the oven only in accordance with the guidelines provided on this page, page 2.10, and page 3.4.

• Before self-cleaning the oven, remove broiler pan, grid, racks, and other cookware. Clean only parts listed in manual.

• Listen for fan – a fan noise should be heard sometime during the cleaning cycle. If not, call Customer Service (866.447.3783) before self-cleaning again.

• DO NOT clean the door gasket.  e door gasket is essential for a good seal. Care should be taken not to rub, damage or move the gasket.

• DO NOT use oven cleaners. No commercial cleaner or oven liner protective coating of any kind should be used in or around any part of the oven. Residue from oven cleaners will damage the inside of the oven when the self-clean mode is used.

• If the oven is malfunctioning in the self-clean mode, turn oﬀ or disconnect the appliance from the power supply and have it serviced by a qualiﬁ ed technician.

• Complete instructions on the operation of the self-clean mode can be found on pages 2.10 and 3.4.

Grounding Instructions

 is appliance must be connected to a grounded, metallic, permanent wiring system, or an equipment grounding conductor should be run with the circuit conductors and connected to the equipment grounding terminal or lead on the appliance.

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iii

RF Interference Considerations

 e appliance has been tested and was determined to be in compliance with applicable portions of FCC part 18 requirements and with the protection requirements of Council Directive 89/336/EEC on the approximation of the laws of the Member States relating to electromagnetic compatibility at the time of manufacture. However, some equipment with sensitivity to signals below these limits may experience interference.

If any equipment experiences interference, the following steps should be considered:

• Increase the physical distance between the sensitive equipment and this oven.

• If the sensitive device can be grounded, do so following accepted grounding practices.

• If battery-powered microphones are being aﬀ ected, ensure that the batteries are fully charged.

• Keep sensitive equipment on separate electrical circuits if possible.

• DO NOT route intercom wires, microphone wires, or speaker cables near the oven.

SAFETY INSTRUCTIONS

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iv SAFTEY INSTRUCTIONS

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left blank.

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Section 1 Speci cations and Installation

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1.1

Theory of Operation

 e TurboChef® Residential Speedcook oven combines high-speed forced air impingement and microwave energy to cook food up to 15 times faster than a conventional oven.  e re-circulating air transfers heat to the food and then passes through a catalytic converter where excess grease and odors are removed and combusted. Simultaneously, precise bursts of microwave energy cook the food from the inside out.  is combination of heating technologies quickly cooks food and seals moisture to help ensure chef-quality results in a fraction of the time.

 is manual includes instructions for servicing, troubleshooting, installing, cleaning, and operating the TurboChef Residential double and single wall ovens. If you have questions not addressed in this manual, contact Technical Service (866.447.3783, +1 214-379-6000) or your Authorized Distributor.

Catalytic Converter

 e catalytic converter removes odors and grease from the air inside the cook cavity. It is also responsible for limiting and removing any smoke from the cavity in case of a spill. Do not use oven cleaner when cleaning the Speedcook oven, as the catalyst can become damaged by the use of caustic cleaners, resulting in a non-warranty service call. See pages 2.10, and 3.4 for approved self-cleaning instructions.

Certi cations

cETLus

Electrical Speci cations

Phase: Single Frequency: 60 Hz Current: 50 amp (DWO) / 30 amp (SWO) Cord: 4-wire (inc. ground) Voltage: 208 or 240 (depending on model) Connection: 5½ ft ﬂ ex conduit Total Connected Power: 50 amp (DWO) / 30 amp (SWO)

NOTE: Unit includes a 5½-ft ﬂ ex conduit to be used between the oven and conduit box. Connectors are supplied by the installation electrician.

NOTE: Branch circuit MUST be protected with a 50-amp (Double Wall Oven) or 30-amp (Single Wall Oven) over-current protector.

CAUTION: If there is a high leg in supply voltage, ensure it is not on L2. Having it present on L2 will damage critical 120V oven components.

SPECIFICATIONS AND INSTALLATION

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1.2 SPECIFICATIONS AND INSTALLATION

50.25˝

(1276 mm)

26.5”

(673 mm)

30” (762 mm)

23.875” (606 mm )

23.875” (606 mm)

48.75”

(1238 mm)

25”

(635 mm)

.75” (19 mm)

28˝ (711 mm)

the wall

Single Wall / Double Wall Top Oven

Double Wall Bottom Oven

23-7/8

(606 mm)

17 -1/ 2˝

(445 mm)

4 -1/4˝ (108 mm)

19 -1/ 2˝

(495 mm)

Figure 1.1: Oven Dimensions

Dimensions - Double Wall Oven

Oven Dimensions

Height: 50.25” (1276 mm) Width: 30” (762 mm) Depth: 23.875” (606 mm) Depth from wall (Doors Closed): 4.25” (108 mm) With Upper Door Open: 17.5” (445 mm) With Lower Door Open: 19.5” (495 mm) Weight: 410 lbs (186 kg)

Upper Cook Cavity Dimensions

Height: 12” (305 mm) Width: 24” (610 mm) Depth: 15” (381 mm) Cooking Space: 2.5 ft

Lower Cook Cavity Dimensions

Height: 15.5” (394 mm) Width: 24” (610 mm) Depth: 17.5” (445 mm) Cooking Space: 3.75 ft

(.07 m3)

(.106 m3)

.75” (19 mm)

Dimensions - Single Wall Oven

Oven Dimensions

Height: 26.5” (673 mm) Width: 30” (762 mm) Depth: 23.875” (606 mm) Depth from wall (Door Closed): 4.25” (108 mm) Depth from wall (Door Open): 17.5” (445 mm) Weight: 230 lbs (105 kg)

Cook Cavity Dimensions

Height: 12” (305 mm) Width: 24” (610 mm) Depth: 15” (381 mm) Cooking Space: 2.5 ft3 (.07 m3)

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1.3

Installation

Cabinets should be cut according to dimensions on pages 1.4 and 1.5. Failure to adhere to the Rough

Wall Opening speciﬁ cations may cause corners of

the cabinet opening to be exposed. If the oven is being installed near a wall or door, there should be at least .25 in (6.35 mm) space between the wall/door and the sides of the oven trim.

TurboChef recommends using standard 2x4 wood support posts with a minimum of .5 in (12.7 mm) solid base to support the oven. Support posts should be level with the ﬂ oor line and well secured to the base of the cabinet. Base cabinet support must be able to support the oven’s weight – 410 lbs (186 kg) DWO and 230 lbs (105 kg) SWO. TurboChef strongly recommends a solid base as shown in the illustrations on the following page.

Due to the oven frame’s overall depth, adhere to the power supply line location shown in Figures 1.2 and

1.3 on page 1.4 to obtain a proper ﬁ t in the cabinet. If necessary due to a low or high conduit box, a 2” diameter hole should be drilled where indicated to allow the power cord to reach the power source.

NOTE: DO NOT shorten conduit. Correct conduit before installing oven into cabinet.

 e oven utilizes ambient air from the kitchen to assist in keeping the operational components cool.  is air is drawn in through the top control panel area through openings in the top access panel and exhausted through an opening at the base of the oven. Please allow a 1-inch minimum clearance above and below these areas.

Should you have any questions or concerns about how the cabinets are built, please contact TurboChef Customer Service 866.447.3783 before installing the oven.

Installation Safety Instructions

Read all installation instructions thoroughly before installing.

CAUTION: DO NOT lift the oven by the door handle(s). Doing so will require a door-leakage test to be performed (see page 5.4), and could cause the door(s) to come oﬀ or misalign, requiring repair and/or replacement.

CAUTION:  e Double Wall Oven weighs 410 lbs (186 kg), and the Single Wall Oven weighs 230 lbs (105 kg). Two or more individuals are required to lift either oven.

CAUTION: DO NOT remove bottom wood support rails until the oven is lifted into the cabinet.

Due to the oven’s weight, it is sometimes 

necessary for installers to utilize special handling equipment, such as hand trucks, dollies, etc. Use of such equipment can damage the kitchen ﬂ oor surfaces. TurboChef recommends that all exposed ﬂ oor surfaces be protected by applying laminate or plywood sheets, along with protective moving blankets before using such equipment. Failure to do so may result in scarring and damaging the homeowner’s ﬂ oors.

Installation, electrical connections, circuit 

breakers, and grounding must comply with local codes.

Ensure power is disconnected at the breaker 

throughout the installation process.

 is oven contains breakable components – use 

extreme caution when lifting and placing it.

A minimum 1-inch clearance, to allow for proper 

airﬂ ow, is required above the top control panel area and below the base. Failure to maintain this clearance may cause the oven to function improperly.

DO NOT push on the outer frame. Doing so 

could cause the door(s) to misalign, requiring repair and/or replacement.

During installation, TurboChef recommends 

removing the lower door prior to lifting the oven from the front (Double Wall Model only.) DO NOT remove the top door of the oven during installation or at any other time.  is door should only be removed by an authorized service agent.

SPECIFICATIONS AND INSTALLATION

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1.4 SPECIFICATIONS AND INSTALLATION

724

(186 kg).

279

Figure 1.2: Cabinet Dimensions and Speci cations, Double Wall Oven

(105 kg).

Figure 1.3: Cabinet Dimensions and Speci cations, Single Wall Oven (Wall Installation)

Figure 1.4: Cabinet Dimensions and Speci cations, Single Wall Oven (Under Counter)

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1.5

Double Wall Oven Cabinet Dimensions

Cabinet Width (min): 30” (762 mm) Wood Fascia  ickness (min): ⅜” (10 mm)

Rough Wall Opening Height (min/max): 48⅞” (1241 mm) Width (min/max): 28½” (726 mm) Upper Corner Radius (preferred): ½” (13 mm) Depth (min): 24” (610 mm)

Cabinet Base Height Wall Installations (min): 11” (279 mm) Wall Installations (max): 15” (381 mm)

NOTE: Failure to adhere to the rough wall opening specs may cause corners of the cabinet opening to be exposed.

Single Wall Oven Cabinet Dimensions

Cabinet Width (min): 30” (762 mm) Wood Fascia  ickness (min): ⅜” (10 mm)

Installing the Oven

CAUTION: Before installing the oven, verify voltage at the wall receptacle matches the voltage speciﬁ ed on the oven’s rating plate (located behind the Speedcook oven door). Each oven is voltage speciﬁ c and will not function properly if supply voltage is diﬀ erent than intended voltage.

1. Ensure power is disconnected at the breaker.

2. Remove oven from box/crate and place on a level surface.

NOTE:  e oven is shipped with two support rails attached to the bottom.  ese rails allow the oven to sit level and keep the bottom of the frame from being damaged during installation. To properly place the oven into the cabinets, these support rails must be removed.

3. Remove all packing materials.

4. Verify the cabinet is built to the proper speciﬁ cations.

Rough Wall Opening Height (min/max): 25⅛” (638 mm) Width (min/max): 28½” (726 mm) Upper Corner Radius (preferred): ½” (13 mm) Depth (min): 24” (610 mm)

Cabinet Base Height Wall Installations (min): 34¾” (883 mm) Wall Installations (max): 38¾” (984 mm) Under Counter Installations (min): 5½” (139 mm)

NOTE: Failure to adhere to the rough wall opening speciﬁ cations may cause corners of the cabinet opening to be exposed.

5. If provided, install the base slide plate (Figure

1.5, below).  is plate will make installation and future servicing of the oven easier.

SPECIFICATIONS AND INSTALLATION

Figure 1.5: Base Slide Plate Installation

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1.6 SPECIFICATIONS AND INSTALLATION

NOTE: You may screw or nail the base slide plate in place if required.

NOTE: If the cabinet is not built to the proper speciﬁ cations, please consult with the contractor, builder, or end user.

6. Place the oven in front of the cabinet, allowing room to access wires.

7. Make the electrical connection.  e electrical supply should be a 4-wire single-phase AC. Connect the red, black, white, and green (ground) oven wires to the corresponding colors of the electrical supply wires. Route ﬂ ex conduit to allow for oven removal for servicing.

NOTE: For branch circuits installed before 1996, a 3-wire hook up may be allowed. See NEC, or qualiﬁ ed electrician for details.

8. Place the oven into the cabinet.

WARNING:  e Double Wall Oven weighs approximately 410 lbs (186 kg),  e Single Wall Oven weighs approximately 230 lbs. (105 kg.). Each oven requires two or more individuals to lift it.

WARNING: DO NOT push on the outer frame. Doing so could cause door(s) to misalign, requiring repair and/or replacement.

When the unit is lifted into the cabinet opening, the installer must remove the support rails one at a time to allow the oven to slide into the opening properly. Remove each support rail by unscrewing the support screw on either side of the rail. Supports should then slide oﬀ the oven base.

When sliding the oven into its ﬁ nal position, the installer should continually pull the conduit through the electrical drill hole for it to remain taut and not become twisted or lodged behind the oven.

NOTE: Ovens are built voltage speciﬁ c. A 208volt oven will not operate properly if connected to a 240-volt source, and vice versa. Improper voltage supplied to the oven will void the manufacturer’s warranty and cause damage to oven components.

9. Reconnect power to the breaker.

10. Secure the oven to the cabinets: a. Open the oven door(s). b. Making sure the oven is fully installed against the front of the cabinet, install two of the supplied screws in the upper cavity, and two in the lower cavity (lower cavity screws only applicable to the Double Wall Oven), through the side trim holes on either side.  e screws should engage the inner cabinet and secure the oven in place.

11. Remove all plastic wire ties and packing material from the top and bottom oven cavities/racks (bottom oven cavity only applicable to the DWO oven).

12. Verify the oven is functional and set the clock. a. “Re-Boot” the oven after the initial installation. i. Advance the CookWheel on the top oven to “Bake.”

ii. Press and hold all four buttons on the

display at the same time for two seconds. b.  e display should illuminate, the TurboChef logo should appear, and the oven should chime. Once this is veriﬁ ed, return CookWheel to the “Oﬀ ” position.

NOTE: DO NOT attempt to program any cook programs in the top oven during installation.

c. Conﬁ rm that the oven is set to the proper conﬁ guration: Double Wall Oven or Single Wall Oven (see Oven Conﬁ guration page 4.4). d. Set the clock by pressing the Set Clock Knob (top knob next to the clock).  e knob will pop out. Turn the knob left or right to set the correct time. When the time is set, press the knob back in to its original position.

13. Leave all warning decals and instructional labels on the oven for the consumer to view.

14. Ensure all paper and plastic is removed from the cook cavity. Ensure the consumer is aware of and has access to the provided oven literature and operating instructions.

Page 23

Section 2 Oven Controls and Cooking The Speedcook Oven

Page 24

Page 25

2.1

123

Figure 2.1: Oven Controls

Speedcook Oven Controls

1. Analog Clock and Timer

 e clock and timer run with advanced electronic control knobs. To operate, see 2. Set Clock Knob and

3. Set Timer Knob.

2. Set Clock Knob

To set the time,

1. Press knob to extend.

2. Turn knob to set time.

3. Press knob back in to original position.

125411610

7. CookWheel™ (outer knob)

Turn to select a Speedcook mode, Self-Clean, or to turn the oven oﬀ . Modes include: Air-Crisp, Bake, Broil, Favorites, Dehydrate, Roast, and Toast.

8. Oven Light Switch

Press to illuminate the top cook cavity.

9. Start Key

Press to select an option, begin a preheat cycle, or initiate a cook cycle.

3. Set Timer Knob

To set the timer,

1. Press knob to extend.

2. Turn knob to set timer – up to 60 minutes.

3. Press knob back into original position.

NOTE:  e timer does not begin counting down until the knob is pressed back in.  e oven will chime four times at the end of the timer cycle.

4. Cook Navigator™

Consists of the Display (5), Start Key (9), Back Key (10), Cancel Key (11), and Info Key (12).

5. Display

 e display shows information relevant to the current oven operation and/or user options.

6. CookWheel™ (inner knob)

Turn to navigate through the options on the display. Press knob to select an option, begin a preheat cycle, or initiate a cook cycle.

NOTE: Pressing the “Start” key performs the same function as pressing in the inner CookWheel knob.

10. Back Key

Press to return to the previous screen.

11. Cancel Key

Press to terminate a cook cycle or to return to the main screen.

12. Info Key

Press to display information on the Oven Setup (sound, units & measurements, display, and software updates), Help Topics, and Oven Tips.

NOTE: When the oven is in the middle of a cook cycle, you will not be able to access the Info screen.

OVEN CONTROLS AND COOKING  THE SPEEDCOOK OVEN

Page 26

2.2 OVEN CONTROLS AND COOKING  THE SPEEDCOOK OVEN

Cook Modes

 e Speedcook oven features seven modes that enable the user to cook a wide variety of foods.

- Air-Crisp

- Bake

- Broil

- Dehydrate

- Favorites

- Roast

- Toast

To access Air-Crisp, Bake, Broil, Dehydrate, Favorites, Roast, or Toast cook modes, turn the CookWheel to the desired cook mode.

NOTE: Unlike traditional ovens or the lower double wall oven, Speedcook oven cooking parameters will vary signiﬁ cantly on a cook-by-cook basis. For troubleshooting cooking problems, see section 6 in this manual. For information on component measurements and testing, see section 5.

 e table below details heater element activity.

Mode Convection

Fan

Preheat Oﬀ 30.8 ± 3.0 28.8 ± 3.0

All Modes Oﬀ 20.5 ± 2.0 19.2 ± 2.0

208 VAC Value

240 VAC Value

In the TurboChef® Speedcook Oven, the traditional explanation of baking remains the same. However, the hot air is moved through the cook cavity at higher speeds than in a traditional oven.  is rapid movement of air decreases cook times while ensuring foods bake evenly and retain more moisture. When in the Bake mode, keep in mind that metal cookware will provide more bottom browning while items in glass cookware will cook a little faster. Bake pizzas on a pizza pan or place them directly on the oven rack. Some casseroles may need to be covered with parchment paper to prevent over-browning.

Broil

Broiling directly exposes food to radiant heat (as over a ﬁ re or on top of a grill).  e heat is direct and intense, and it diﬀ ers from baking or roasting in that only one side of the food is exposed to the heat source. Generally, broiled foods are quick cooking, inherently tender, relatively lean, and not too thick.

 e Broil mode on the TurboChef Speedcook Oven will yield the same or superior results as broiling in any traditional oven.  e only real diﬀ erence is that your food cooks faster due to the hot air moving through the cook cavity at increased speeds. Cast iron grill pans, metal sheet pans, and metal broiling pans all work well in this mode.

Air-Crisp

 ink of Air-Crisp as air-frying.  is mode is great for foods that traditionally taste best when fried – like french fries – as well as items containing any sort of breading or stuﬃ ng that should toast and brown in the cooking process – like stuﬀ ed mushrooms.

In this mode, high temperature air moves through the cook cavity at varying speeds to brown and crisp the food product. Food comes out with a nice caramelization and is lower in fat content than if it had been deep fried. Metal sheet pans work well in this mode.

Bake

Traditionally, baking is cooking with dry heat. Hot air from the top and bottom of the oven envelopes the food in a radiant dry heat, perhaps with a little moisture from the food, which circulates as a vapor in the oven.

Dehydrate

Considered the original form of preservation, dehydrating food removes the product’s natural moisture by slowly drying it with a low heat. Manually, food can be dehydrated by placing thin slices on racks and allowing them to dry assisted only by sun or air. To shorten the dehydrating process, the TurboChef oven utilizes low temperature air moving at higher speeds.

 is mode is ideal for products like banana chips and other dried fruits, as well as dried meats, like beef jerky. Sheet pans, TurboChef teﬂ on screens, and pizza pans (with or without holes) are all recommended for use with this mode.

Favorites

 e Favorites mode is a tool that allows the user to store and easily recall up to 9,999 cook settings for the user’s favorite recipes.  is mode truly allows you

Page 27

2.3

to cook any recipe quickly and easily – regardless of whether it is a perfect match to one of the preprogrammed settings or not. In addition to any settings that the user saves, the settings for the last ten cooks are always saved in this mode.  e Favorites mode gives the user access to Convection Bake, Defrost, and Microwave functions. To learn more about the Favorites mode, see below.

Roast

Traditionally, roasting implies cooking food with an open ﬂ ame, as on a spit in front of a ﬁ re.

Roasting and baking in an oven are essentially the same thing, but roasting is mostly used for meats and vegetables. In the top oven, a combination of low and high speed air is used to brown the outside of food while retaining moisture inside.

Roasting pans (without lids), glass casserole dishes (with or without lids), and sheet pans all work well with this mode. Shallow pans will allow food to brown more. An uncovered pan without liquids will help keep the heat dry and allow foods to brown and crisp. Setting meats and poultry directly on a rack in a pan keeps them from steaming in their own juices.

Toast

Toasting browns and crisps foods like bread, bagels, and tortillas. Using high heat and high speed air, the Toast Mode can enhance ﬂ avor and melt cheese.

For best results, place food directly on the oven rack. For products that may run over, like ﬁ lled pastries, use a metal sheet pan.

NOTE: Convection bake, defrost, and microwave cook cycles cannot be saved to Favorites and will not appear in “View Last Cooked (10).”

 is section contains information about the following:

- Cooking a Recently Prepared Dish

- Cooking a “Favorite” Dish

- Using the Convection Bake Mode

- Using the Defrost Mode

- Using the Microwave Mode

NOTE: If the oven does not contain some of these options, verify it has received the most recent software upgrade. See page 4.3 for details.

NOTE: If for some reason the SD card must be replaced, you must back up your Favorites to retain them. See page 4.3 for more details.

Cooking a Recently Prepared Dish

 e Speedcook oven automatically saves a record of the user’s last 10 cooks, including any adjustments made to the selected preprogrammed setting, giving the user quick access to their most recently-used cook settings.

OVEN CONTROLS AND COOKING  THE SPEEDCOOK OVEN

To cook a recently-prepared dish,

1. Turn the CookWheel to “Favorites.”

2. Select “View Last Cooked (10).”

3. Select the dish to be cooked.

4. Select “Cook” and press start or the inner CookWheel knob.

5. Follow the Basic Cooking steps (page 2.5), beginning with  3.

Favorites Cooking

 e Favorites mode allows the user to store and quickly access the cook settings for their favorite recipes and food items and gives them access to the convection bake, defrost, and microwave modes (for information on how to access convection bake, defrost, and microwave functions, see page 2.4).

Cooking in the Favorites mode generally follows the Basic Cooking process on page 2.5; however, users must choose between cooking a recently prepared dish, cooking a “Favorites” dish, or using the convection bake, defrost, or microwave functions.

Cooking a ”Favorite” Dish

 e Favorites mode allows the user to store and quickly access the cook settings for your favorite recipes and food items. To save a dish to Favorites, see page 2.9.

To cook a “Favorite” dish,

1. Turn the CookWheel to “Favorites.”

2. Select the dish to be cooked.

3. Select “Cook” and press start or the inner CookWheel knob.

4. Follow the Basic Cooking steps from  3.

Page 28

2.4 OVEN CONTROLS AND COOKING  THE SPEEDCOOK OVEN

Using the Convection Bake Function

 e Favorites mode gives the user access to the convection bake function. When set to convection bake, the Speedcook oven operates as a standard convection oven with the fans running at a low speed.  e Speedcook oven’s convection bake function creates the same cooking environment as setting the bottom oven in the Double Wall Model to the convection bake mode.

To use the convection bake function,

1. Turn the CookWheel to “Favorites.”

2. Select “Convection Bake” and press start or the inner CookWheel knob.

3. Set the desired time.

4. Set the desired temperature.

5. Press start to begin preheating.

6. When preheating is complete (the oven will chime), place food in the oven and press start.

WARNING: Inside of oven and oven door are hot! Use extreme caution.

NOTE: Food placed in the oven will begin cooking regardless of whether start is pressed or not. However, when start is pressed, the timer begins counting down.

3. Set the desired time.

4. Set the desired power level.

NOTE: For defrost applications, the power level automatically defaults to 10% (recommended for most foods).

5. Place food item in the oven and press start.

6. When defrosting is complete (the oven will chime), remove the food from the oven.

WARNING: Dish and inside of oven/oven door are hot! Use extreme caution.

NOTE: If additional time is needed, the user can add time to the timer by pressing start.

7. When done defrosting, turn the oven oﬀ by turning the CookWheel to Oﬀ .

Using the Microwave Function

 e Favorites mode gives the user access to the microwave function. When the microwave function is selected, the Speedcook oven operates as a standard microwave oven.  is function should be used primarily for applications such as popping popcorn or boiling water.

7. When cooking is complete (the oven will chime), remove the food from the oven.

WARNING: Dish and inside of oven/oven door are hot! Use extreme caution.

NOTE: If additional time is needed, the user can add time to the timer by pressing start.

8. When done cooking, turn the oven oﬀ by turning the CookWheel to Oﬀ .

Using the Defrost Function

 e Favorites mode gives the user access to the defrost function.  e defrost function should be used to aid in the thawing of foods, especially frozen meats and casseroles.

To use the defrost function,

1. Turn the CookWheel to “Favorites.”

2. Select “Defrost” and press start or the inner CookWheel knob.

To use the microwave function,

1. Turn the CookWheel to “Favorites.”

2. Select “Microwave” and press start or the inner CookWheel knob.

3. Set the desired time.

4. Set the desired power level.

5. Place food item in the oven and press start.

6. When cooking is complete (the oven will chime), remove the food from the oven.

WARNING: Dish and inside of oven/oven door are hot! Use extreme caution.

NOTE: If additional time is needed, the user can add time to the timer by pressing start.

7. When done cooking, turn the oven oﬀ by turning the CookWheel to Oﬀ .

Page 29

2.5

Roast

Please select an option

Roast

To start cook cycle, select Begin Preheat

Meat Lamb Rack of Lamb 14 to 16 oz

1 Rack 2 Racks

... Rack of Lamb 14 to 16 oz 1 Rack

SUGGESTED SETTINGS

Cook Time Oven Temp

04:00 500

mins : secs

Adjust Settings

Begin Preheat

Roast

! Do not put the dish into the oven until preheat is complete.

Roast

Carefully place dish into oven. To begin cooking press the

Start

button.

Roast

The oven will remind you to check the dish and tone when cooking is 80% complete.

Lamb Rack of Lamb 14 to 16 oz 1 Rack

COOK TIME: 04:00 COOK TEMP: 500

Preheat Time Oven Temp

PREHEAT - get screenshot

03:18 347

mins : secs

Preheating, please wait to insert dish

Lamb Rack of Lamb 14 to 16 oz 1 Rack

COOK TIME: 04:00 COOK TEMP: 500

Cook Time Oven Temp

Ready to cook - get screenshot

04:00 500

mins : secs

Preheat complete, oven ready

... Rack of Lamb 14 to 16 oz 1 Rack

COOK TIME: 04:00 COOK TEMP: 500

Time Remaining

03:55

Cooking has started

Figure 2.2: Standard Operation Modes

Basic Cooking

Figure 2.2

 is section explains how to cook a food item by describing the “standard operation” modes through which the Speedcook oven progresses.

Roast

Please check your dish. Be careful when removing from Oven.

... Rack of Lamb 14 to 16 oz 1 Rack

COOK TIME: 04:00 COOK TEMP: 500 TIME LEFT: 00:48

No Change Cook Less Brown Less Cook and Brown Less

... Rack of Lamb 14 to 16 oz 1 Rack

COOK TIME: 04:00 COOK TEMP: 500 TIME LEFT: 00:00

Cook More Brown More Cook and Brown More Done Cooking this Dish

... Rack of Lamb 14 to 16 oz 1 Rack

SUGGESTED SETTINGS

Cook Time Oven Temp

04:00 500

mins : secs

Save to Favorites Cook Another

Done

Mode 1: Oven O

Mode during which the oven is turned oﬀ . To begin cooking, the user must ﬁ rst select, using the CookWheel, one of the seven speedcook modes (AirCrisp, Bake, Broil, Dehydrate, Favorites, Roast, or Toast).

OVEN CONTROLS AND COOKING  THE SPEEDCOOK OVEN

 e oven is preprogrammed with recipe settings at the time of manufacture and is ready to operate after installation.

NOTE: Modes are not always sequential, as shown in Figure 2.2, above.

-  1: Oven Oﬀ

-  2: Select a Food Item

-  3: Conﬁ rm Settings

-  4: Preheat

-  5: Ready to Cook

-  6: Cooking

-  7: 80% Complete

-  8: 100% Complete

-  9: Remove Food from Oven

Happens When...

-  e user turns the CookWheel to the “Oﬀ ” position at any time.

Goes To...

-  2 when the user turns the CookWheel to Air-Crisp, Bake, Broil, Dehydrate, Roast, or Toast.

- Favorites when the user turns the CookWheel to Favorites (for more information on Favorites, see page 2.3).

Mode 2: Select a Food Item

Mode during which the user speciﬁ es which dish to cook. Use the inner CookWheel knob to select the item and item speciﬁ cations. To make a selection, scroll to the desired option and press the inner CookWheel knob or start key.

Page 30

2.6 OVEN CONTROLS AND COOKING  THE SPEEDCOOK OVEN

Happens When...

-  e user turns the CookWheel to Air-Crisp, Bake, Broil, Dehydrate, Roast, or Toast from  1.

-  e user presses cancel from  7.

-  e user selects “Done” from  9.

Goes To...

-  3 when the user selects the desired food item and item speciﬁ cations.

Mode 3: Con rm Settings

Mode during which the user either conﬁ rms the suggested cook settings, or chooses to adjust the cook settings (for more information on adjusting cook settings, see page 2.8).

Happens When...

- When the user selects the desired food item and item speciﬁ cations from  2.

Goes To...

-  4 when the user selects the “Begin Preheat” option.

- Adjust Settings when the user selects the “Adjust Settings” option (for more information on adjusting cook settings, see page 2.8).

Mode 4: Preheat

Mode during which the oven preheats to the set temperature.  e oven automatically begins counting down the remaining preheat time and displays the current temperature. Preheating will take approximately 8-14 minutes.

Happens When...

-  e user selects the “Begin Preheat” option from  3.

Mode 5: Ready to Cook

Mode during which the oven is ready to cook a food item. Place the food into the oven at this time. Press start to begin the cook cycle.

WARNING: Inside of oven and oven door are hot! Use extreme caution.

Happens When...

-  e oven has reached the set temperature.  e oven will chime, indicating it is ready to cook.

-  e user selects “Cook Another“ from  9.

Goes To...

-  6 when the user presses start.

Mode 6: Cooking

Mode during which the oven cooks a food item.

NOTE: To immediately terminate cooking, turn the CookWheel to oﬀ .

NOTE:  e oven door must be completely closed before the oven will initiate a cook cycle. If the door is opened while the oven is cooking, the oven displays the message “ e oven door is open. You must close the oven door before continuing.” If applicable, the microwave system shuts oﬀ and the air will power down to 30%.

Happens When...

-  e user presses start from  5.

Goes To...

-  7 when the cook cycle is 80% complete (if the cook cycle exceeds 2:30).

-  8 if the cook cycle is less than 2:30.

Mode 7: 80% Complete

Goes To...

-  5 when the oven chimes, indicating that the preheat cycle is complete.

NOTE: If the door is opened while the oven is preheating, the oven displays the message “ e oven door is open. You must close the oven door before continuing.” If applicable, the air will power down to 30%.

Mode during which the cook cycle is 80% complete. When the cook cycle is 80% complete, a chime sounds, the cook cycle pauses, and the user has the option to check the food and, if desired, adjust the cook settings. At this point in the cook cycle, the user can choose one of the following four options:

- No Change: Select if dish is cooking to expectations.

- Cook Less: Select if product is overcooking or internal temperature is too high.

Page 31

2.7

- Brown Less: Select if the outside of the dish is browning faster than desired.

- Cook and Brown Less: Select if dish is cooking and browning more than expected, but requires additional cooking time.

If after 30 seconds the oven has not been addressed (door opened or inner CookWheel knob pressed), the oven will complete the cook cycle according to the original settings.

NOTE: For food items with a cook time of 2:30 or less, the cook cycle does not pause at the 80% complete mark.

NOTE: If the food item is done at this time, remove it from the oven and press cancel to end the cook cycle. If you end the cook cycle at this point, the cook cycle will not be recorded in “View Last Cooked (10)” (for more information on “View Last Cooked (10), see page 2.3).

Happens When...

-  e cook cycle is 80% complete.

Goes To...

-  2 if the user presses cancel.

-  8 after 30 seconds of inactivity, or if the user selects “No Change,” “Cook Less,” “Brown Less,” or “Cook and Brown Less.”

Mode 8: 100% Complete

Mode during which the cook cycle is 100% complete. At the end of a cook cycle, a chime sounds notifying the user that the food item is done.  e user has the option to add additional cook time, if desired. At this point in the cook cycle, the user can choose one of the following four options:

- Cook More: Select if the outside meets expecta tions, but the inside needs to cook longer.

- Brown More: Select if the inside meets expectations, but outside needs to cook longer.

- Cook and Brown More: Select if both the inside and outside need to cook longer.

- Done Cooking this Dish: Select if no adjustments are needed.

NOTE: If the user selects “Cook More,” “Brown More,” or “Cook and Brown More,” the user can add up to 30% of the original cook time in 5-second increments.  is can be repeated as many times as necessary.

 is option is available for 3 minutes. After 3 minutes of inactivity, the oven assumes the item is done.

Happens When...

-  e cook cycle is 100% complete.

Goes To...

-  9 if the user selects “Done Cooking this Dish.”

-  6 if the user selects one of the “cook/ brown more” options.

Mode 9: Remove Food from Oven

Mode during which cooking is complete, and the food item is ready to be removed from the oven.  e user has the option to “Save to Favorites,” “Cook Another,” or “Done.”

WARNING: Dish and inside of oven/oven door are hot! Use extreme caution.

OVEN CONTROLS AND COOKING  THE SPEEDCOOK OVEN

NOTE:  e display will not change until “Save to Favorites,” “Cook Another,” or “Done” is selected or until the oven is turned oﬀ .

Happens When...

-  e user selects “Done Cooking this Dish” from  8.

Goes To...

-  1 if the user turns the CookWheel to oﬀ .

-  2 if the user selects “Done.”

-  5 if the user selects “Cook Another.”

- Save to Favorites (see page 2.9), if the user selects “Save to Favorites.”

NOTE: If the user selects “Cook Another,” the next cook cycle will use the same settings as the previous cook cycle.  is includes any adjustments made at any point during the previous cook cycle.

Page 32

2.8 OVEN CONTROLS AND COOKING  THE SPEEDCOOK OVEN

Adjusting a Recipe’s Cook Time

Cook times may be altered up to 25% in either direction of the preprogrammed time. Be aware that preprogrammed cook times can vary signiﬁ cantly from traditional settings.

To adjust the cook time,

1. From  3, select “Adjust Settings” (Figure 2.3).

2. Use the inner CookWheel knob to scroll to the cook time and press the knob to select it (Figure 2.4).

3. Turn the inner CookWheel knob to adjust the cook time in 5-second increments.  e original cook time cannot be altered more than 25% in either direction (Figure 2.5).

4. Press the inner CookWheel knob to conﬁ rm the new cook time.

5. Scroll to and select “Begin Preheat.”

Adjusting a Cook Temperature

Temperatures may be altered up to 25°F (14°C) in either direction. Note that preprogrammed temperatures can vary signiﬁ cantly from traditional settings.

To adjust a cook temperature,

1. From  3, select “Adjust Settings” (Figure 2.3).

2. Use the inner CookWheel knob to scroll to “Oven Temp,” press knob to select (Figure 2.6).

3. Turn the inner CookWheel knob to adjust the temperature in 5°F (2°C) increments.  e temperature cannot be altered more than 25°F (14°C) in either direction (Figure 2.7).

4. Press the inner CookWheel knob to conﬁ rm the new temperature.

5. Scroll to and select “Begin Preheat.”

The Advanced Cook Mode

In the advanced cook mode (Figures 2.8 and 2.9), the user can adjust the airﬂ ow and microwave power levels of a preprogrammed setting. In addition to customizing an existing setting, making adjustments in the advanced cook mode enables the user to develop new settings from pre-existing ones. A high level of familiarity with the oven is suggested before attempting to make changes in this mode.

Each programmed setting is divided across four intervals, each of which has four associated settings:

- Time:  e length (run time) of an interval. Time settings are not adjustable - only the total cook time can be adjusted (see adjacent).

- Upper Air: Controls speed of the air coming from the top of the oven. Adjust in 10% increments from 0-100%.

- Lower Air: Controls speed of the air coming from the bottom of the oven. Adjust in 10% increments from 0-100%.

- Microwave: Controls the amount of microwave power being used. Adjust in 10% increments from 0-100%.

Use the inner CookWheel knob to scroll to and select the desired setting(s).

To use the Advanced Cook Mode,

1. From  3, select “Adjust Settings” (Figure 2.3).

Roast

To start cook cycle, select Begin Preheat

Figure 2.3: Adjusting Recipe Settings

Roast

! Time has been calculated for best results. Adjusting time is not advised.

Figure 2.4: Selecting Cook Time

... Rack of Lamb 14 to 16 oz 1 Rack

SUGGESTED SETTINGS

Cook Time Oven Temp

04:00 500

mins : secs

Adjust Settings

... Rack of Lamb 14 to 16 oz 1 Rack

Cook Time Oven Temp

0:04:00 500

hours:mins:secs

Advanced...

Begin Preheat

Roast

To adjust time, turn knob to the desired time and press to set.

Figure 2.5: Adjusting Cook Time

Roast

! Temp has been calculated for best results. Adjusting temp is not advised.

Figure 2.6: Selecting Oven Temp

... Rack of Lamb 14 to 16 oz 1 Rack

Cook Time Oven Temp

03:55 500

mins:secs

Advanced...

... Rack of Lamb 14 to 16 oz 1 Rack

Cook Time Oven Temp

04:00 500

mins:secs

Advanced...

Begin Preheat

Page 33

2.9

2. Use the inner CookWheel knob to scroll to “Advanced...” and press the knob to select it (Figure 2.8).

3. Select the setting to be adjusted and make the desired changes (Figure 2.9).

4. Press the inner CookWheel knob to conﬁ rm the new settings.

5. Select “Done” to conﬁ rm changes or “Original Settings” to cancel changes (Figure 2.9).

Saving to Favorites

By allowing the user to store up to 9,999 cook settings, the Favorites mode allows the user to cook anything quickly and easily.  e user can create the perfect cook cycle for any product by using a preprogrammed setting and making adjustments at the 80% and 100% complete points. Once the settings are perfected, saving to favorites enables the user to store and easily recall the perfect setting for the next time they cook that recipe.

 e user can save to favorites when:

- Cooking is paused via oven door being open

- A cook cycle is 80% or 100% complete

- Selecting a recently-cooked dish from View Last Cooked (10).

To save a dish to favorites,

1. From any of the above listed conditions, choose Save to Favorites.

- Turn the inner CookWheel knob to advance the cursor to the word you wish to edit or delete, or to select the space between words where you want to add text.

- Press the knob to select the word or space between words.

- To add text: a. Use the inner CookWheel knob to scroll left and right to select letters (A-Z), numbers (0-9), or punctuation marks. b. Press the inner CookWheel knob to conﬁ rm a character.  e cursor will move to the next space. c. Press the back key to return to a previous character. d. Predictive matches appear beneath the text being added. Use the inner cook wheel knob to scroll to and select a match (if applicable). e. When a word is complete, press the inner CookWheel knob after the ﬁ nal character is conﬁ rmed.

- To change or delete text: a. Use the inner CookWheel knob to high light the word to be changed or deleted, and press the knob to select the word. b. A drop-down menu will appear with “change” and “delete” as selectable options (Figure 2.10). c. If “change” is selected, follow the above instructions for adding text.

OVEN CONTROLS AND COOKING  THE SPEEDCOOK OVEN

NOTE: If you do not wish to rename the item being saved, skip to step 3.

2. To rename a dish:

Roast

To adjust temp, turn knob to the desired temp and press to set.

Figure 2.7: Adjusting Oven Temp

Roast

! This mode is recommended for advanced users only.

Figure 2.8: Selecting Advanced

... Rack of Lamb 14 to 16 oz 1 Rack

Cook Time Oven Temp

03:55 495

mins:secs

Advanced...

... Rack of Lamb 14 to 16 oz 1 Rack

Cook Time Oven Temp

04:00 500

mins:secs

Advanced...

Begin Preheat

NOTE: When re-saving an existing Favorites recipe, previous settings will be replaced with those from the current cook cycle, including any name change.

3. Scroll to and select “Done.”

COOK TIME: 04:00 COOK TEMP: 500

Time Intervals 01:00 min 01:00 min 01:00 min 01:00 min

100%

change

delete

90%

80%

100%

50%

Upper Air

Lower Air

Power

Figure 2.9: Advanced Cook Mode

Favorites

Turn inner knob to change the current letter. Push inner knob to select.

Figure 2.10: Changing or Deleting a Name

Last Cooked 1 Rack Save as Favorite

COOK TIME: 05:00 TEMP: 500

Mary’s 1 Rack

70%

100%

60%

50%

100%

30%

DoneOriginal Settings

Done

Page 34

2.10 OVEN CONTROLS AND COOKING  THE SPEEDCOOK OVEN

Renaming a Dish (in Favorites)

At any time - and as often as the user likes - the user may rename any of the cook settings saved in Favorites.

To change the name of a setting stored in Favorites,

1. Turn the CookWheel to Favorites.

2. Select the dish/cook setting to be renamed.

3. Use the inner CookWheel knob to select “Rename” (Figure 2.11).

4. Rename the selected item (see step 2 of “Saving to Favorites, page 2.9).

5. Select Done.

Deleting a Dish (from Favorites)

Favorite settings that are no longer used or that the user wishes to delete may be removed from the Favorites mode.

To delete a dish from favorites,

1. Turn the CookWheel to Favorites.

2. Select the dish/cook setting to be deleted.

3. Use the inner CookWheel knob to select Delete (Figure 2.11).

NOTE: When Delete is selected, the item/setting is automatically deleted and the oven returns to the initial Favorites screen, which lists all stored Favorite settings in alphabetical order.

Self-Clean Mode - Speedcook Oven

 e Speedcook oven is self-cleaning. Using heat up to 900°F (482°C), the oven will self-clean the inside of the cook cavity in approximately 4.5 hours.

NOTE: For the Double Wall Oven, while one oven is in self-clean mode the other will not be functional. Additionally, the top and bottom ovens cannot be self-cleaned at the same time.

NOTE:  e oven door will not unlock until the oven cavity temperature recedes below 500°F (260°C).

To initiate a self-clean (Figure 2.12),

1. Ensure the cook cavity is empty and remove the oven rack.

NOTE: Failure to remove the oven rack will cause the rack to discolor.

2. Turn the CookWheel to Self-Clean.

3. Press the Start button.

4. If terminating a self-clean is required, turn the outer CookWheel knob to Oﬀ .

During the self-clean cycle, the oven door is locked and oven surfaces can become very hot. When the cleaning cycle is complete and the oven has returned to a safe temperature, the screen displays a message and the oven sounds a tone and powers down.

Reheat Setting

Use the reheat setting to reheat leftovers.  e intended serving size is food for one individual, or a “plate” of food.

1. Turn the CookWheel to Bake.

2. Scroll to Refrigerated Foods, Reheat.

3. Press the Start button to begin reheating.

Favorites

Please select an option.

Figure 2.11: Rename a Dish (in Favorites) Figure 2.12: Self Clean

Rack of Lamb

Cook Rename Delete

WARNING:  e oven is extremely hot during self-clean. DO NOT touch or attempt to use until self-clean is complete.

Self-clean

During self-cleaning,

the oven door will be locked.

CAUTION: HOT SURFACES

Self-cleaning is starting.

Page 35

Section 3 Oven Controls and Cooking Lower Oven (Double Wall Oven Only)

Page 36

Page 37

3.1

Figure 3.1: Lower Oven Controls (Double Wall Oven models only)

Lower Oven Controls

 ese controls are only applicable to Double Wall Oven models.

1. Display Screen

Displays the oven and meat probe temperature, as well as the timer information.

2. Oven Mode Dial

Turn to choose the cook mode. For a list of cook modes, see page 3.2.

3. Temperature Dial

456 7

5. Lock Key

When the door is locked, a graphical lock appears on the screen. Hold for 3 seconds to engage/disengage the door lock. Allow 5-10 seconds for lock/unlock to engage.

NOTE: To engage the Sabbath Mode, simultaneously press the “Lock” and “View” keys for 3 seconds. See page 3.3 for details.

6. View Key

Press to toggle between the oven temperature, meat probe temperature, and timer information being displayed in the primary screen position.

Turn the dial to set the oven temperature or to select Broil Low, Broil High, Proof, or Warm.

4. Set Timer Knob

Use to set the timer:

1. Press knob to extend.

2. Turn knob to set timer.

3. Press knob back in to original position.

 e timer does not begin counting down until the knob is pressed back in.  e oven will chime four times at the end of the timer cycle.

7. Oven Light Switch

Press to illuminate the bottom cook cavity.

OVEN CONTROLS AND COOKING  THE BOTTOM OVEN

Page 38

3.2 OVEN CONTROLS AND COOKING  THE BOTTOM OVEN

Cook Modes

 e bottom oven (double wall only) is both a conventional and convection oven that provides uniform cooking throughout.  e bottom oven features ﬁ ve cook modes.

- Bake

- Broil

- Convection Bake

- Convection Roast

- Roast

 e table below details heater element activity within each mode.

Mode Convection

Fan

Bake Oﬀ 22.3 ± 2.0 19.8 ± 2.0

Broil (High) Oﬀ 14.7 ± 2.0 13.3 ± 2.0

Broil (Low) Oﬀ 14.7 ± 2.0 13.3 ± 2.0

Convection Bake On 20.3 ± 2.0 17.5 ± 2.0

Convection Roast On 12.7 ± 2.0 11.0 ± 2.0

Roast Oﬀ 18.0 ± 2.0 15.5 ± 2.0

Bake

208 VAC Value

240 VAC Value

Convection Bake

Convection Bake uses the same heating elements as Bake with the addition of a convection fan and heater in the back of the cook cavity.  is fan and heater help heat and circulate the air evenly throughout the chamber to produce superior browning and crisping.

Any food cooked under the Bake mode can also be prepared using Convection Bake and vice versa. Items cooked under Convection Bake will cook about 33% faster than when cooked under Bake.

Convection Roast

Convection Roast uses the same heating elements as Roast. However, unlike Roast, Convection Roast utilizes the convection fan and heater in the back of the oven to help heat and circulate the air throughout the cook cavity.

Any item cooked under Roast can be prepared using Convection Roast and vice versa.  e one diﬀ erence is that Convection Roast uses additional heating elements, causing it to cook about 33% faster.

Traditionally, baking is to cook with dry heat. Hot air from the top and bottom of the oven envelopes the food in a radiant dry heat, perhaps with a little moisture from the food, which circulates as a vapor in the oven.

In the bottom oven of the double wall oven, unlike most traditional ovens, the bottom heating element is concealed beneath the cook cavity.  is feature allows for a bigger cook cavity, easier cleaning, and more uniform heating.

Broil

Broiling directly exposes food to radiant heat (as over a ﬁ re or on top of a grill).  e heat is direct and intense, and it diﬀ ers from baking or roasting in that only the top side of the food is exposed to the heat source.

Generally, you broil foods that are quick cooking, inherently tender, relatively lean, and not too thick.

Roast

Roasting in an oven is essentially the same as baking, but roasting is used mostly for meats and vegetables. Hot air from the top and bottom of the oven is used to brown the outside of food while retaining moisture inside.

In the bottom oven of the Double Wall model, the two top heating elements provide better control and optimized broiling and roasting.

Warm Setting

 e warm setting uses heat from the top and bottom of the oven to keep the cook cavity at 145°F (63°C), the perfect holding temperature for food.

Proof Setting

 e Proof setting uses heat from the top and bottom of the oven to keep the cook cavity at 90-105°F (32-41°C), the perfect temperature for yeast dough to rise. Some doughs may require moisture to proof correctly. If moisture is needed, place a sheet pan of water under the lower rack.

Page 39

3.3

Basic Cooking

 e bottom oven, when used in combination with the top oven, oﬀ ers the user an expanded capacity.

WARNING: Due to the concealed heating element in the bottom oven, make sure to not cover or line the bottom of the oven with foil.

To operate the lower oven,

1. Set the oven mode dial to one of the following: Convection Bake, Convection Roast, Broil, Roast, or Bake.

2. Set the oven temperature dial.

- Along with the various temperature settings, the user could also choose Warm or Proof.

-  e oven’s current temperature is displayed as the primary information on the screen.

3. When the oven ﬁ nishes preheating (Figure 3.2), insert the dish.

WARNING: Inside of oven and oven door are hot! Use extreme caution.

4. Set the timer (if desired). See page 3.1 for instructions on how to set the timer.

NOTE: When the timer is set, the remaining cook time is displayed as the primary information and the oven temperature as the secondary (Figure 3.3). Press the View key to toggle which information is displayed as primary and secondary (Figure 3.4).

NOTE: When the meat probe is in use, the probe temperature is displayed while the dish is cooking. To toggle between the information displayed in the primary, secondary, and tertiary positions on the screen (Figure 3.5), press the View key.

5. When food has ﬁ nished cooking, warming, or prooﬁ ng, carefully remove it from the oven.

The Sabbath Mode

 e Sabbath Mode, available for religious faiths with “no work” requirements on the sabbath, cooks food over a 72 hour period.  e Sabbath Mode is Star-K certiﬁ ed.

To use the Sabbath Mode,

1. Press the oven light switch to turn the oven light on.

- By turning the oven light on via the switch, the light stays on for the duration of the time the oven is in the Sabbath Mode. If the oven light is not turned on, the oven light will turn on and oﬀ when the door is opened and closed.

2. Set the oven mode dial and temperature dial as if cooking normally.

3. Simultaneously press the Lock and View keys for 3 seconds.  e display will say “Oven display is oﬀ when Sabbath Mode is engaged.”  is message is displayed for 10 seconds.  e display then goes black and remains black as long as the oven is in the Sabbath Mode.

- In the Sabbath Mode, the oven’s display will appear black, however the oven is still active. At any time while the oven is in the Sabbath Mode, the oven’s temperature can be adjusted by turning the temperature dial.  ere is a 15-second delay before any temperature change is processed.  e oven will power down after 72 hours.

NOTE: Turning the oven oﬀ or changing the cook mode will cancel the Sabbath Mode. If there is a loss of power while the oven is in Sabbath Mode, the oven will not resume cooking in the Sabbath Mode once power is restored.

OVEN CONTROLS AND COOKING  THE BOTTOM OVEN

WARNING: Dish and inside of oven/oven door are hot! Use extreme caution.

6. Turn the oven mode dial to the Oﬀ position.

175°

Preheating

Figure 3.2: Preheating

Figure 3.3: Timer Primary

350°

2:45

Timer

2:45

350°

Oven Temp

Figure 3.4: Oven Temp Primary Figure 3.5: Probe Temp Primary

350° 2:45

180°

Probe Temp

Page 40

3.4 OVEN CONTROLS AND COOKING  THE BOTTOM OVEN

Self-Clean Mode

 e bottom oven is self-cleaning. Using heat up to 900°F (482°C), the oven will self-clean the inside of the cook cavity in approximately 4.5 hours.

NOTE: For the Double Wall Oven, while one oven is in self-clean mode the other will not be functional. Additionally, the top and bottom ovens cannot be self-cleaned at the same time.

NOTE:  e oven door will not unlock until the oven cavity temperature is below 500°F (260°C).

To initiate a self-clean,

1. Ensure the cook cavity is empty and remove all oven racks.

NOTE: Failure to remove the oven rack will cause the rack to discolor. Failure to remove the roller rack may harm the rack’s rolling mechanism.

2. Set the oven mode dial to Self-Clean.

3. Press and hold the Lock key for 3 seconds.  e self-clean will initiate.

WARNING:  e oven is extremely hot during self-clean. DO NOT touch or attempt to use until self-clean is complete.

4. If terminating a self-clean is required, turn the oven mode dial to Oﬀ .

5. When self-cleaning is complete, the oven will tone and turn oﬀ automatically.

Page 41

Section 4 Info Mode

Page 42

Page 43

4.1

Overview of the Info Mode

From the Info Mode, the user can

- Adjust oven sounds

- Adjust display settings

- Adjust oven units and measurements

- Access help topics and general cooking information

- Update oven software

- Access version information

- Access installer setup

To access the Info Mode, simply press the Info key when the oven is oﬀ (Figure 4.1).

Adjusting Oven Sounds

 e user can change the oven’s volume and individually turn on and oﬀ the diﬀ erent oven tones.

To adjust the speaker volume,

1. Ensure that the CookWheel is turned to oﬀ .

2. Press the Info key.

3. Scroll to and select Oven Setup.

4. Scroll to and select Sound.

5. Scroll to and select Volume.

6. Turn the inner CookWheel knob left or right to adjust the sound (Figure 4.2).

7. Press the Start key to conﬁ rm the adjustment.

8. Press the Back key to back out of the volume adjustment screen and return to the main Info Screen.

To turn on and oﬀ oven sounds,

1. Ensure that the CookWheel is turned to oﬀ .

2. Press the Info key.

3. Scroll to and select Oven Setup.

4. Scroll to and select Sound.

5. Scroll to and select Select.

6. Use the inner CookWheel knob to scroll to and select the sound to be turned on or oﬀ (Figure 4.3). By default, all oven sounds are turned on.

- Preheat is Done:  is sound indicates the oven has completed the preheat cycle and has reached the correct cooking temperature. When this sound is turned on, the oven will chime every ﬁ ve minutes until the user either cancels or starts the cook cycle.

- 80% Cooking Reminder:  is sound indicates the cook cycle is 80% complete. If the user chooses to not address the oven at this point, a chime will sound at 15 and 30 seconds. After 30 seconds, the oven will resume cooking.

- 100% Cooking Reminder:  is sound indicates the cook cycle is complete.  e oven will chime every 8 seconds until the oven door is opened or the user selects an adjustment option.

- Valid Selection:  is sound indicates a valid selection has been made.

- Invalid Selection:  is sound indicates an invalid selection has been made.

7. Press the Back key to exit the Select screen and return to the main Info screen.

Figure 4.1: Oven O

Info

Figure 4.2: Adjust Volume Figure 4.3: Sound Select

Oven Setup Sound Volume

Adjust Volume

Info

Oven Setup Sound Select

Preheat is Done ON 80% Cooking Reminder ON 100% Cooking Reminder ON Valid Selection ON

INFO MODE

Page 44

4.2 INFO MODE

Adjusting Display Settings

To adjust the brightness of the oven display(s),

1. Ensure that the CookWheel is turned to oﬀ .

2. Press the Info key.

3. Scroll to and select Oven Setup.

4. Scroll to and select Display.

5. For Double Wall Oven models only, select “Top Oven” or “Bottom Oven” (Figure 4.4).

6. If “Top Oven” was selected, scroll to and select “Brightness.”

7. Adjust the brightness to the desired setting by turning the inner CookWheel knob left or right (Figure 4.5).

8. Press Start to conﬁ rm selection.

9. Press Back to return to previous screens.

To adjust the color of the Speedcook oven display,

1. Ensure that the CookWheel is turned to oﬀ .

2. Press the Info key.

3. Scroll to and select Oven Setup.

4. Scroll to and select Display.

5. For Double Wall Oven models only, select Top Oven (Figure 4.4).

NOTE:  e color cannot be adjusted on the bottom oven display if Bottom Oven is selected.

6. Scroll to and select Colors.

7. Change the color to the desired setting by turning the inner CookWheel knob left or right (Figure 4.6).

8. Press Start to conﬁ rm selection.

9. Press Back to return to previous screens.

Adjusting the Oven’s Units & Measurements

 e oven defaults to Fahrenheit. To change between Fahrenheit and Celsius,

1. Ensure that the CookWheel is turned to oﬀ .

2. Press the Info key.

3. Scroll to and select “Oven Setup.”

4. Scroll to and select “Units & Measurements.”

5. Scroll to and select “Temperature.”

6. Turn the inner CookWheel knob to scroll to the desired temperature measurement (Figure 4.7).  e arrow indicates which setting is selected.

7. Press Back to return to previous screens.

Accessing Help Topics and General Cooking Information

 e Speedcook oven comes equipped with a variety of helpful hints that cover a range of topics.  is information is located in two places - Help Topics and Oven Tips.

To access Help Topics or Oven Tips,

1. Ensure that the CookWheel is turned to oﬀ .

2. Press the Info key.

3. Scroll to and select either Help Topics or Oven Tips.

4. Press Back to return to previous screens.

Info

Figure 4.4: Select Top or Bottom Oven Figure 4.6: Adjust Color

Info

Figure 4.5: Adjust Brightness Figure 4.7: Changing Temperature Units

Oven Setup Display

Top Oven Bottom Oven

Oven Setup Display Brightness

Adjust brightness

Info

Oven Setup Display Colors

Orange Pewter Blue Red

... Units & Measurement

Fahrenheit Celsius

Page 45

4.3

Updating the Oven Software

TurboChef® periodically releases software updates (located at www.turbochef.com or call customer service for assistance).  e oven can be updated via USB ﬂ ash drive (not included with the oven).

CAUTION: Software updates are generation speciﬁ c. Installing Gen 2 software on a Gen 1 oven (and vice versa) will disable the oven. Replace the SD Card to restore oven operation (see page A.18).

NOTE: When the oven’s software is upgraded, any cook settings in View Last Cooked (10) in the Favorites mode will be lost. To permanently save these settings prior to updating software, see page 2.9.

To update the oven’s software,

1. Ensure the oven is in Favorites.

2. Press the Info key.

3. Scroll to and select Oven Setup.

4. Scroll to and select Software Update.

5. Insert the USB ﬂ ash drive into the USB port located on top of the oven’s control panel (Figure 4.8).

6. Press Start or the inner CookWheel knob to select Update Software (Figure 4.9).

NOTE: If the USB ﬂ ash drive is not detected by the oven, a message will appear (Figure 4.10). Ensure the USB ﬂ ash drive is correctly inserted and press Start or the inner CookWheel knob to continue.  e oven will continue to display this screen until the user selects Cancel or a USB ﬂ ash drive is detected.

CAUTION: DO NOT press any keys or attempt to operate the oven until the software update completes.

Backing Up/Restoring Favorites

If for some reason the SD card must be replaced, you must back up Favorites to retain them.

To back up favorites before SD card replacement,

1. Ensure the oven is in Favorites.

2. Press the Info key.

3. Scroll to and select Oven Setup.

4. Select “Backup/Restore Customizations.”

5. Select “Backup to your USB Drive.”

6. Insert the USB ﬂ ash drive into the USB port located on top of the oven’s control panel (Figure 4.8) and select “Begin.”

NOTE: A USB extension cable (P/N: 103194) is available for easy access to the port. Contact TurboChef customer service for more information.

Figure 4.8: Inserting USB Flash Drive

Info

Figure 4.9: Insert USB Flash Drive Screen

Info

Oven Setup Software Update

Insert USB ash drive into the USB port located on top of the oven control panel.

Update Software

Oven Setup Software Update

USB ash drive can not be found. Please ensure the USB ash drive is properly connected to the USB port.

Try Again

To restore favorites after SD card replacement,

1. Follow steps 1-4 above.

2. Select “Restore from your USB Device.”

3. Insert the USB ﬂ ash drive into the USB port located on top of the oven’s control panel (Figure 4.8) and select “Begin.”

Info

Figure 4.11: Begin Update Screen

Oven Setup Software Update

Software update can take up to 10 minutes. Please do not disturb the oven until the update is complete.

Begin Update

INFO MODE

Figure 4.10: USB Flash Drive Can Not be Found Screen

Figure 4.12: Logo Screen

Page 46

4.4 INFO MODE

Accessing the Version Information

To access the software version number,

1. Ensure that the CookWheel is turned to oﬀ .

2. Press the info key

3. Scroll to and select Oven Setup.

4. Scroll to and select Version Information.

Installer Setup

Use the Installer Setup mode to test individual oven components by turning them on or oﬀ and to set diﬀ erent conﬁ guration settings for the oven. To access Installer Setup:

1. From the Info Mode, select Oven Setup.

2. From Oven Setup, select Installer Setup.

3. Input the code 042259 (Figure 4.13).

Top (or Single Wall) Oven Component Tests

Select “Top Oven” to individually turn on and oﬀ the following components (see Figure 4.14):

- Top and Bottom Blowers

- Top Heaters

- Magnetrons

- Upper Door Lock

Bottom Oven Component Tests

Oven Con guration

From the Installer Setup screen, scroll down and select “Oven Conﬁ guration” to conﬁ gure the oven for double wall or single wall (Figure 4.16).

CAUTION: If the oven is not set to the proper conﬁ guration, it will not operate correctly.

NOTE: If the SD card is replaced, the oven must be reconﬁ gured to the correct setting.

AC Voltage Con guration

WARNING: DO NOT reconﬁ gure the operating voltage of the oven to accommodate existing voltage supply or the oven will not operate correctly. Change this setting only if instructed by TurboChef.

From the Installer Setup screen, scroll down and select AC Voltage Conﬁ guration to specify between 208 and 240 VAC (Figure 4.17).

Simulation/Demo State, and printf Mask

Simulation State, Demo State, and printf Mask are conﬁ gurations speciﬁ c to manufacturer use. Do not activate these conﬁ gurations unless expressly

instructed by TurboChef.

NOTE: Not applicable for single wall ovens.

Select “Bottom Oven” to individually turn on and oﬀ the following components (see Figure 4.15):

- Heaters

- Lower Door Lock

Info

Turn inner knob to change the current number. Push inner knob to select.

Figure 4.13: Input Password

Info

Figure 4.14: Top Oven Component Options

Oven Setup

0 4 2 2 5 9

Done

Oven Setup Installer Setup Top Oven

Top Blower Bottom Blower Top Heaters Mags

Info

Figure 4.15: Bottom Oven Component Options

Info

To congure for Single Wall Oven, turn knob, select YES and press START.

Figure 4.16: Oven Con guration

Info

To congure oven voltage, turn knob to select option and press START.

Figure 4.17: AC Voltage Con guration

Oven Setup Installer Setup Bottom Oven

Heaters Lock/Unlock Door

... Single Wall Oven Conguration

Double Wall Oven <--Single Wall Oven

... AC Voltage Conguration

208 Volts AC 240 Volts AC <---

Page 47

Section 5 Oven Systems

Page 48

Page 49

5.1

Convection System Speedcook Oven

 e Speedcook oven convection system is designed to rapidly heat, clean, and recirculate air into the cook cavity.  is section contains information about the following components:

- Blower motor (bottom)

- Blower motor (top)

- Blower motor controller (BMSC)

- Heater assembly

- Jetplate (bottom)

- Jetplate (top)

- Stirrer motor and assembly

For information on accessing and removing parts, and for part numbers, see the Appendix.

Blower Motor (Bottom)

 e bottom blower motor runs on varied 3-phase power to force the air into the upper oven cavity.  e motor is controlled by a proprietary controller.

 e bottom blower motor can be tested in    (see page 4.4).

Heater Assembly

 e Speedcook oven heater assembly consists of three elements.  e elements are voltage speciﬁ c and cannot operate properly without the correct voltage applied. Conﬁ rm incoming voltage matches the oven’s speciﬁ cations. During preheat, all three elements are energized.

 e K1 solid state relay (see page 5.12) controls L1 voltage to the two primary elements while the K8 relay (see page 5.10) controls L1 voltage to the preheat element.  e K9 relay (see page 5.11) controls L2 voltage to all three elements.

NOTE: For 208 volt units, preheat amperage is at 30.8 amps and once the temperature has been reached, the operating amperage is at 20.5 amps.

NOTE: For 240 volt units, preheat amperage is at 28.8 amps and once the temperature has been reached, the operating amperage is at 19.2 amps.

Jetplate (Bottom)

 e bottom jetplate channels air that is generated from the bottom blower motor.

Blower Motor (Top)

 e top blower motor runs on varied 3-phase power to force the air into the upper oven cavity.  e motor is controlled by a proprietary controller.

 e top blower motor can be tested in    (see page 4.4).

Blower Motor Controller (BMSC)

 e blower motor controller is proprietary and will only operate the convection motors described above.  e motor controller is controlled on command from the control board and a 0-10VDC speed command from the control board.

 e blower motor controller can be tested in    by testing the blower motors (see page 4.4). For additional troubleshooting, see page 6.3.

Jetplate (Top)

 e top jetplate channels air that is generated from the top blower motor.  is air passes through a stirrer before entering the cook cavity through the jetplate holes.

CAUTION:  e top jetplate is ceramic and may crack or break if mishandled. Be careful when removing or reinstalling it.

Stirrer Motor and Assembly

 e stirrer is responsible for evenly distributing hot air and microwaves that are launched from the top of the oven into the cook cavity.  e stirrer is driven by a motor that remains on during a cook cycle. When the oven is cooling down, the stirrer motor turns oﬀ when the cook cavity temperature recedes below 160°F (71°C).

To visually test stirrer motor operation, go to Bake, which will automatically turn on the stirrer, the stirrer is visible through the upper jetplate holes.

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5.2 OVEN SYSTEMS

Convection System - Lower Oven (Double Wall Oven Only)

 e lower oven convection system is designed to rapidly heat and recirculate air into the cook cavity.  is section contains information about the following components:

- Broil element

- Bake element

- Convection element

- Convection fan motor

For information on accessing and removing parts, and for part numbers, see the Appendix.

Broil Element

 e broil element consists of independently-operated inner and outer elements.  e inner broil element’s L1 voltage is controlled by the K12 solid state relay’s output “B” while the L2 voltage is controlled by the K13 relay’s N.O. terminal.  e outer broil element’s L1 voltage is controlled by the K12 solid state relay’s output “A” while the L2 voltage is controlled by the K13 relay’s N.O. terminal.

For Gen 2 ovens, operation is the same through the CookWheel, but power is received from terminal RBJ20-2 of the relay board.

Speedcook Oven Door

 is section contains information about the following:

- Removing/reinstalling the Speedcook oven door

- Door skin replacement

- Left lock motor assembly

- Right lock motor assembly

- Measuring RF leakage for microwave safety

- Halogen light assembly

For information on accessing and removing parts, and for part numbers, see the Appendix.

 e proper ﬁ t and adjustment of the oven door is essential for safe and reliable oven operation.

Removing/Reinstalling the Speedcook Oven Door

To remove or reinstall the Speedcook oven door, follow the steps below. Refer to Figure 5.1.

Bake Element

 e bake element’s L1 voltage is controlled by the K11 solid state relay’s output “B” while the L2 voltage is controlled by the K13 relay’s N.O. terminal.

Convection Element

 e convection element’s L1 voltage is controlled by the K11 solid state relay’s output “A” while the L2 voltage is controlled by the K13 relay’s N.O. terminal.

Convection Fan

 e convection fan motor is powered by 120 VAC L2 voltage, which is controlled by the selector switch’s terminal “3.” When a convection cycle is selected, the switch to terminal 3 is closed and the convection fan motor is supplied voltage.  e convection fan will continue to run until the selector switch is turned to a non-convection cycle and the switch to terminal 3 is opened.

CAUTION: DO NOT lift the oven door by the handle. Lifting the oven door by the handle can damage the oven door and cause it to misalign.

1. Ensure the oven has cooled to at least 160°F (71°C).

2. To gain access to the right and left upper-hinge pockets, remove the oven from the cabinet approximately 7” (178 mm).

3. Remove the insulation covers (1) and insulation (2).

4. Remove the locking screw (3) from the receivers (one on each side).

5. Open the door completely.

6. Pull both hinge locks forward.

7. Raise the door until the hinge locks prevent the door from closing any further.

8. Hold the door by the sides and lift the door out of the hinge pockets.

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5.3

9. To install a new door, hold the door by the sides and slide the door into the hinge pockets in the same manner the door was removed.

10. Open the door completely.

11. Push both hinge locks back into their original positions.

12. Close the door.

13. Reinstall the locking screws, insulation, and insulation covers.

14. Ensure the door opens and closes freely.

15. Push the oven back into its original position.

16. Perform a MW leakage test (see page 5.4).

Door Skin Replacement

If the oven door skin has sustained damage or if a new color is wanted, the door skin can be replaced without replacing the entire door. Follow the steps below and refer to Figure 5.2.

1. Follow the Removing/Reinstalling the Upper Oven Door steps 1-8 (see page 5.2).

5. Follow the Removing/Reinstalling the Upper Oven Door steps 9-16 (adjacent).

CAUTION: A microwave leakage test MUST be performed! See page 5.4.

Left Lock Motor Assembly

 e left lock motor assembly consists of a motor, locking mechanism for the left side of the Speedcook oven door, and three switches (primary, light, and lock) that activate when a cam is turned while the door closes.

 e light switch controls the oven cavity light.  e light turns oﬀ when the door is closed, unless the oven light switch (see page 2.1) is pressed.

 e left lock switch closes to supply power to the locking mechanism while the door is closed.

For Gen 1 ovens, the left (primary) interlock switch (when closed in conjunction with the right interlock switches) supplies power to the K3 and K4 relays, which close and distribute power to the right and left high-voltage transformers, allowing for microwave operation.

2. Place the oven door on a ﬂ at surface and ensure that all surfaces are protected from damage.

3. Remove the four phillips screws (A) from the bottom and the two door handle bolts (B). Retain screws (A) and bolts (B) and handle (C) for use on replacement door skin.

4. Install the new door skin using the hardware from step 3.

For Gen 2 ovens, the door switch circuit starts and returns on the control board (primary switch = J15-7 and J15-8). Control voltage leaves the control board to the relay board for relay operation.

OVEN SYSTEMS

Figure 5.1: Hinge Pocket

Figure 5.2: Speedcook Oven Door Detail

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5.4 OVEN SYSTEMS

Right Lock Motor Assembly

 e right lock motor assembly consists of a motor, locking mechanism for the right side of the Speedcook oven door, and three switches that activate when a cam is turned while the door closes.

For Gen 1 ovens, when the secondary, monitor, and lock switches are closed, the I/O control board opens the K2 relay to prevent a direct short to the 20-amp fuse.

 e right lock switch closes to supply power to the locking mechanism when the cam is turned while the door is closed.

For Gen 1 ovens, the right switches (when closed in conjunction with the primary switch) supply power to the K3 and K4 relays, which close and distribute power to the right and left high-voltage transformers, allowing for microwave operation.

For Gen 2 ovens, the door switch circuit starts and returns on the control board (secondary switch = J15-9 and 10; monitor switch = J15-5 and 6). Control voltage leaves the control board to the relay board for relay operation.

Measuring RF Leakage for Microwave Safety

An RF (microwave) leakage test must be performed at the conclusion of the following service tasks:

- Door removal, replacement, and/or adjustment

- Door gasket removal, replacement, and/or adjustment

- Waveguide removal and /or replacement

- Magnetron removal and/or replacement

- Door skin removal and replacement

WARNING: If the unit fails the microwave leakage test (leakage greater than 5mW/cm oven must be taken out of service immediately until the defect is corrected. In addition, the CDRH Regulation 21 Subpart C, 1002.20 requires that leakage readings of over 5mW/cm

must be reported

to the manufacturer.

), the

e. Select “Top Oven.” f. Select “Mags.” For Gen 1 ovens, the Cook Wheel must not be in the Oﬀ position.

2. Place a water load into the cook cavity (Figure

5.3). Water load must conform to the following speciﬁ cations:

- Volume: 275 ml ± 15 ml

- Temperature: 68°F ± 9°F (20°C ± 5°C)

- Vessel: Low form, 600 ml beaker with an inside diameter of approximately 3.35” (85 mm) and made of Pyrex

or equivalent.

3. Close the oven door and turn on the magnetrons.

4. Position the microwave survey meter as shown in Figure 5.4.

5. Measure microwave emission: a. Leave the magnetrons on for 60 seconds. b. While the magnetrons are on, measure microwave emission around the door, moving the meter sensor at 1 inch/second. As microwave leakage is observed moving the sensor at 1 inch/second, note any meter

spike areas that come close to 5mW/cm

for later re-measurement. c. Replace the water load every 60 seconds until the test is completed.

6. Once done scanning the entire door, replace the water load.

7. Close the oven door. While the magnetrons are on, return the meter probe to any “meter spike” areas and allow the probe to remain in the “spike” area for 15 seconds per area. Note the highest reading obtained in each area.

To measure RF leakage,

1. Access the Installer Setup Mode. a. Press the “Info” key. b. Select “Oven Setup.” c. Select “Installer Setup.” d. Input the password 042259.

Figure 5.3: Water Load Placement

Page 53

2. Remove the bulb by gently pulling it out of the socket.

3. Install the new bulb.

4. Reinstall the cover, using the tool provided with kit RWD-3014 to tighten it.

Lower Oven Door (Double Wall Oven Only)

 is section contains information about the following:

- Removing/reinstalling the lower oven door

- Halogen bulb replacement

5.5

Figure 5.4: Survey Meter Placement

NOTE:  ere may be several places on the door where this procedure needs to be done. If so, start out with a fresh water load each time a new area is measured, or if measurement of an area takes longer than 60 seconds.

8. After each test is complete, open the oven door and dispose of the hot water.

Halogen Light Assembly

 e halogen light assembly consists of 2 lights that are powered when the door is opened or when the oven light switch is pressed (see page 2.1). When the door is opened, the left side lock motor assembly’s N.C. light switches supply power from the 12 VDC power supply to the lights. Likewise, if the oven light switch (see page 2.1) is pressed, power is supplied to the left and right halogen lights as well.

CAUTION: DO NOT touch the bulb with bare ﬁ ngers; rather, use gloves, cloth, or tissue when handling the bulb. If the bulb is accidentally touched, clean it with isopropyl alcohol before applying power.

CAUTION: To avoid burns, ensure the oven cavity has had adequate time to cool before performing the below procedure.

To replace a bulb in the Speedcook oven,

1. Remove the halogen light cover using the tool provided with kit RWD-3014.

For information on accessing and removing parts, and for part numbers, see the Appendix.

Removing/Reinstalling the Lower Oven Door

To remove or reinstall the lower oven door, follow the steps below.

CAUTION: DO NOT lift the oven door by the handle. Lifting the oven door by the handle can damage the oven door and cause it to misalign.

1. Ensure the lower oven has cooled below 160°F (71°C).

2. To gain access to the right and left lower-hinge pockets, remove the oven from the cabinet approximately 7” (178 mm).

3. Open the door completely.

4. Pull both hinge locks forward.

5. Raise the door until the hinge locks prevent the door from closing any further.

6. Hold the door by the sides and lift the door out of the hinge pockets.

7. To install a new door, hold the door by the sides and slide the door into the hinge pockets in the same manner the door was removed.

8. Open the door completely.

9. Push both hinge locks back into their original positions.

OVEN SYSTEMS

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5.6 OVEN SYSTEMS

10. Close the door.

11. Ensure the door opens and closes freely.

12. Push the oven back into its original position.

Halogen Bulb Replacement

CAUTION: DO NOT touch the bulb with

bare ﬁ ngers; rather, use gloves, cloth, or tissue when handling the bulb. If the bulb is accidentally touched, clean it with isopropyl alcohol before applying power.

CAUTION: To avoid burns, ensure the oven cavity has had adequate time to cool before performing the below procedure.

To replace a bulb in the lower oven (use RWD-

3016),

1. Gently pry the halogen light cover from the

oven cavity wall using a ﬂ at-surfaced object. Be careful to not damage the porcelain coating on the oven cavity wall.

2. Remove the bulb by gently pulling it out of the socket.

Doubler Circuit, Voltage

 e microwave system consists of a magnetron and voltage doubler circuit.  e voltage doubler circuit consists of a special step-up transformer, a capacitor, and a diode. Two separate transformers are incorporated; one is the 1-10 step-up, multiplying the incoming voltage by 10, the other is the ﬁ lament transformer that supplies approximately

3.5 VAC to the magnetron ﬁ laments to warm them before the 4000+ volts are applied.  is function extends the life of the components.  e oven uses two magnetrons, each magnetron circuit is separate and independent.

High-Voltage Capacitors

 e high-voltage capacitor works in combination with the diode to eﬀ ectively double the already-high voltage from the secondary (output) winding of the transformer.  e capacitor is used to store the power during the positive to negative swing of the incoming AC voltage. When the oven is connected to power, the capacitor will still have 2000+ volts setting on the terminals. During magnetron operation, the potential is 4000+ volts.

3. Install the new bulb.

4 Reinstall the cover, ensuring that it snaps into place.

Microwave System

 is section contains information about the following components:

- Doubler circuit, voltage

- High-voltage capacitors

- High-voltage diodes

- High-voltage transformers

- Magnetrons

- Stirrer motor and assembly

- Waveguides

For information on accessing and removing parts, see the Appendix.

High-Voltage Diode

 e high-voltage diode works in combination with the high-voltage capacitor to eﬀ ectively double the 2000+ volts output voltage from the high-voltage transformer. During magnetron operation, the potential is 4000+ volts.  is high voltage allows the magnetron to produce the microwave energy.

 e high-voltage diode is assembled by connecting several 1000-1500 volt semiconductor diodes in a series to increase the reverse voltage capability. In the circuit, the high-voltage diode conducts to prevent the ﬁ lament voltage from becoming positive, thus as the high-voltage winding of the transformer goes to 2400, the high-voltage capacitor is charged to 2000+ volts.

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5.7

When the high-voltage winding starts to go toward negative, the high-voltage diode becomes non-conducting with the charged high voltage capacitor in series with the high-voltage winding. When the transformer gets to its negative peak of

-2400, the voltage applied to the ﬁ lament is negative 4000+ volts.

High-Voltage Transformers

 e high-voltage transformers are ferro-resonant, limiting fault currents and minimizing magnetron power changes due to input voltage changes.  e high-voltage transformer supplies the high voltage for the Voltage Doubler Circuit. For Gen 1 ovens, they are controlled via the K3 and K4 relays. For Gen 2 ovens, they are controlled by relays 2 and 3 on the relay board (outputs RBJ5 and RBJ4).

Wiring a High-Voltage Transformer

DANGER: Never attempt to wire or measure the secondary voltage values of the high-voltage transformers with the high-voltage transformers enabled. Lethal voltage will be present.

 e proper re-installation of a high-voltage transformer is critical. Upon removing a high-voltage transformer, make sure to note where each wire was connected. Refer to the oven schematic (Section 7) detailing the proper wiring.

As shown in the schematic, transformers are installed mirror opposite and wired 180° out-of-phase. It is essential for longevity that the high-voltage transformers remain 180° out-of-phase.  is can be checked by placing a volt meter across terminals T1-1 and T2-1 (primary voltage). If the meter reads 0 VAC, the high-voltage transformers are most likely wired in-phase.

As a last check, energize the microwave system and verify the voltages between the incoming voltage taps on each high-voltage transformer. Taps 1 and 2 = 208V. Taps 1 and 3 = 240V. Wiring issues must be corrected prior to returning the oven to service. Voltage at the wall must match the transformer conﬁ guration.

Magnetrons

 e magnetron generates microwave energy by means of 4000+ volts supplied by the microwave circuit. Due to the very high voltage present during operation, the only safe way to test this component is by a resistance test of its ﬁ lament with the power disconnected and the capacitors properly discharged.

 e magnetron can have a good ﬁ lament and still not operate properly. All of the testing should be completed on the other microwave components ﬁ rst before checking the magnetron. If all tests listed in this manual are completed for the transformer, diode, and capacitor, and all show to be within speciﬁ cations, the magnetron will be the defective component.

CAUTION: Be careful to not allow debris into the waveguides when servicing the magnetrons.

Stirrer Motor and Assembly

To visually test stirrer motor operation, go to Bake, which will automatically turn on the stirrer, the stirrer is visible through the upper jetplate holes.

Waveguides

 e waveguides channel microwaves into the cook cavity. To prevent the life of the magnetrons from being shortened, be careful to not allow debris to enter into the waveguides when servicing the magnetrons.

OVEN SYSTEMS

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5.8 OVEN SYSTEMS

Control System

 is section contains information about the following components:

- Air switch (single wall oven)

- Clock

- Control board

- CookWheel control

- Display, lower oven

- Display, speedcook oven

- Electrical compartment cooling fans

- EMI ﬁ lter

- Fuses

- High limit thermostats

- Latch mechanism (lower oven)

- Light switch, control panel

- M.O.V. ﬁ lter

- Magnetron cooling fan

- Magnetron thermostats

- Power supply, 12 VDC

- Power supply, 24 VDC

- Relay board (Gen 2; see diagram on page 7.7)

- Relay - K2 monitor (Gen 1 oven)

- Relay - K3 T1 HV transformer (Gen 1 oven)

- Relay - K4 T2 HV transformer (Gen 1 oven)

- Relay - K5 mag cooling fan (Gen 1 oven)

- Relay - K6 right-side door lock (Gen 1 oven)

- Relay - K7 left-side door lock (Gen 1 oven)

- Relay - K8 preheat (Gen 1 oven)

- Relay - K9 L2 upper heating elements

- Relay - K10 lower door lock (Gen 1 oven)

- Relay - K13 L2 lower oven heating elements

- RJ Cables

- RTD

- SD Card

- Selector switches

- Solid state relay - K1 L1 Speedcook oven heating elements

- Solid state relay - K11 lower oven bake and convection elements

- Solid state relay - K12 lower oven broil elements - inner and outer

- Speaker

- Temperature switch (Lower Oven)

- Transformer, clock, 12 VAC

-  ermostat, cook cavity

-  ermostat, fan control

- USB port

- Wiring harness

For information on accessing and removing parts, see the Appendix.

Air Switch (Single Wall Oven)

 e air switch monitors the amount of air coming from the exhaust blower in the single wall oven. It is a fail-safe device that communicates to the control board whether or not the exhaust blower is working.

Clock

For Gen 1 ovens, pins 1 and 5 supply voltage to the clock for operation from the clock transformer. For Gen 2 ovens, pins 1 and 5 supply voltage to the clock from terminals RBJ18-1 and RBJ18-2 on the relay board. For all ovens, pins 2 and 3 supply control signals to the control board, which allows the clock to tell the control board when the speaker needs to chime (terminal P24 on Gen 1 ovens and terminal J21 on Gen 2 ovens).

Control Board

 e control board controls each electrical component of the oven. See section 7 for schematics.

CookWheel Control

When the CookWheel is turned to any position except “Oﬀ ” and “Favorites,” it closes its normally open (N.O.) switch and the upper and lower cooling fans are activated. Also, the three upper oven heating elements receive L2 voltage and the stirrer motor activates. In any position other than “Oﬀ ” and “Favorites” the control board also closes the relays that supply L1 voltage to the three heating elements in the upper oven, preheating the oven during the selection process.

Display, Lower Oven

 e lower liquid crystal display is the primary user interface for the lower oven.

Attaching the Lower Display Cable

CAUTION: When connecting the lower display to the control board, ensure that it is connected correctly. An incorrect connection can cause the control board and/or the lower display to fail.

A twenty pin female connector connects the lower display cable to the control board.  e triangle on the connector denotes pin 1. Ensure that the slot

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5.9

denoted by the triangle is placed onto pin one. For Gen 1 ovens, the lower display cable is connected to the control board’s P13 connector. For Gen 2 ovens, the lower display cable is connected to the control board’s J9 connector.

Display, Speedcook Oven

 e upper liquid crystal display is the primary user interface for the Speedcook oven. It is connected to the control board via a ribbon cable. To ensure that the cable is properly positioned, a red line is located on only one side of the cable.  is red line should face downward on the upper display assembly. It should also point left on the control board. Failure to reattach the ribbon cable correctly could lead to a direct short in the control board and upper display assembly.

NOTE: In Gen 1 ovens, the upper display ribbon cable is a ground source for the control board to the oven frame.

Electrical Compartment Cooling Fans

Both the upper and lower electrical compartment cooling fans are activated when either the CookWheel (top oven) or the selector switch (bottom oven) are turned to any selection other than oﬀ . Both fans are independently monitored by motion sensors that will display an error message on the display if either fan fails to function normally. It accomplishes this by sending 5 VDC pulses to the control board while the fan is spinning; these pulses occur so fast that a voltmeter will register an average reading of 2.5 VDC when the fan is spinning and a constant 5 VDC or 0 VDC when the fan is not spinning.

sees an open door condition.  e bottom fuse is rated 15 amps. It is wired in the circuit to protect the low voltage components in the oven.

Gen 1 ovens also contain a 5-amp fuse located on the right magnetron cover.  is fuse is powered by the K9 relay to provide power to the upper and lower cooling fans.

For Gen 2 ovens, the fuses are located on the relay board. Fuse 1 (right side) is rated to 20 amps, and fuse 2 (left side) is rated to 15 amps (Gen 2 ovens do not contain a 5 amp fuse).

High Limit Thermostats

 e high limit thermostat is a 250 VAC, 3-pole, manual-reset thermostat with a trip point of 572°F (300°C).  e thermostat interrupts power to the main convection heater in the event of an abnormal condition.

Pertaining to the double wall oven, the upper and lower ovens have independent high limit thermostats located in their respective upper and lower electrical compartments. pressing the reset button.

Reset the high-limit thermostat by

Latch Mechanism (Lower Oven)

 e latch mechanism automatically locks the lower oven door during the self-clean cycle to prevent exposure to the extreme temperatures used to clean the inside of the oven.  e oven door can also be locked by pressing the door lock button underneath the lower display. It will not unlock unless the oven temperature is below 500°F (260°C).

Light Switch, Control Panel

EMI Filter

 e EMI ﬁ lter helps suppress the amount of RF interference emitted by the oven and interference entering from the supply voltage.

Fuses

For Gen 1 ovens, the 15 and 20-amp fuses are housed in a fuse block.  e top fuse is rated 20 amps and designated for the microwave system only.  is safety fuse is designed to trip if the system attempts to operate the magnetrons when the monitor circuit

 e control panel light switch (see page 2.1) activates the lights in the Speedcook oven.

M.O.V. Filter

 e M.O.V. ﬁ lter limits voltage spikes coming into the oven system. If a substantial voltage spike enters the system, the M.O.V. may short as a result of protecting the system. Symptoms of a shorted M.O.V. ﬁ lter are accompanied by a tripped circuit breaker that will continually trip when reset. Also look for a burned or damaged M.O.V.

OVEN SYSTEMS

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5.10 OVEN SYSTEMS

Magnetron Cooling Fan

 e magnetron cooling fans supply air to the magnetrons. For Gen 1 ovens, they are actuated by the K5 relay. For Gen 2 ovens, they are actuated by relay 4 on the relay board (RBJ19-1). At the end of a microwave cook cycle, the cooling fans will continue to operate for an additional 2 minutes (on older versions of the control software, the magnetron cooling fans run for an additional 5 minutes).

Magnetron Thermostats

 e magnetron thermostats are wired in-series with the input voltage of the HV transformers.  ey open at 280°F (138°C).

Power Supply, 12 VDC

 e 12 VDC power supply supplies power to the halogen oven lights.

Power Supply, 24 VDC

 e 24VDC power supply supplies voltage to the control board (and relay board for Gen 2 ovens).

Relay - K2 Monitor (Gen 1 Oven)

 e K2 relay is a 30 amp, double-pole, doublethrow, class F, 24 VDC relay coil. It is used in the magnetron circuit along with the K3 and K4 relays. If the door is opened during a cook cycle, and the K3 or K4 relays are still closed due to a door switch failure, this relay will cause L1 and L2 voltage to short circuit and blow the 20-amp fuse.  e system is designed to protect the user in the case of a door switch failure.  e K2 relay coil is supplied with 24 VDC power except when the door is open or oven power is disconnected.

Relay - K3 T1 HV Transformer (Gen 1 Oven)

 e K3 relay is a 30 amp, double-pole, doublethrow, class F, 24 VDC relay coil.  is relay sends L1 voltage to the T1 transformer.

Relay - K4 T2 HV Transformer (Gen 1 Oven)

 e K4 relay is a 30 amp, double-pole, doublethrow, class F, 24 VDC relay coil.  is relay sends L1

voltage to the T2 transformer.

Relay Board (Gen 2 Only)

Gen 2 ovens contain a relay board consisting of the fuses (page 5.9), clock transformer, and all relays described below. If any of these components fail, except the fuses, the entire relay board must be replaced. See page 7.7 for a schematic with test point locations.

- Relay 1: Monitor

- Relays 2 and 3: HV transformers

- Relay 4: Magnetron cooling fan

- Relay 5: Door lock, upper left

- Relay 6: Door lock, upper right

- Relay 7: Cooling fan, upper

- Relay 8: Stirrer motor

- Relay 9: Door light, upper

- Relay 10: Door lock, lower

- Relay 11: Cooling fan, lower

- Relay 12: Convection fan

- Relay 13: Door light, lower

- Relay 14: Pre-heater

Relay - K5 Mag Cooling Fan (Gen 1 Oven)

 e K5 relay is a 30 amp, double-pole, doublethrow, class F, 24 VDC relay coil.  is relay activates the magnetron cooling fan during and after magnetron operation.

Relay - K6 Right Side Door Lock (Gen 1 Oven)

 e K6 relay is a 30 amp, double-pole, doublethrow, class F, 24 VDC relay coil.  is relay controls the right side door lock motor.

Relay - K7 Left Side Door Lock (Gen 1 Oven)

 e K7 relay is a 30 amp, double-pole, doublethrow, class F, 24 VDC relay coil.  is relay controls the left side door lock motor.

Relay - K8 Preheat (Gen 1 Oven)

 e K8 relay is a 30 amp, double-pole, doublethrow, class F, 24 VDC relay coil.  e K8 relay controls the L1 voltage to the Speedcook oven’s preheat element. When the CookWheel is turned to begin the selection process, the control board sends

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5.11

24 VDC to the activating terminals of the relay.  e N.O. switch closes to send L1 voltage to the preheat element. When the RTD registers that the oven has reached 80% of the preset temperature, the control board stops sending 24 VDC to the K8 relay and the switch opens to turn oﬀ the preheat element.

Relay - K9 L2 Speedcook Heating Elements

 e K9 relay is a 120 VAC single-pole, doublethrow, relay.  is relay supplies L2 voltage to the three Speedcook oven heating elements. On Gen 1 ovens, this relay also supplies L2 voltage to the upper and lower cooling fans inline with the 5-amp fuse.

Relay - K10 Lower Door Lock (Gen 1 Oven)

 e K10 relay works in conjunction with the lower oven’s plunger light switch to activate the lower oven lock motor. Terminal 2 on the selector switch constantly supplies 120 VAC to the K10 relay’s common.  e control board activates the K10 relay’s N.O. switch to the lower oven lock motor by using a circuit inline with the plunger light switch.

 is means that the K10 relay will only activate the lower oven lock motor when the oven door is closed (plunger pressed).

Relay - K13 L2 Lower Heating Elements (Double Wall Oven Only)

 e K13 relay is a 120 VAC single-pole, doublethrow, relay.  is relay supplies L2 voltage to the four lower oven heating elements.

RJ Cables

 e RJ cables connect the control board to the CookWheel and lower oven Mode and Temperature switches.

RTD

 e RTD uses resistance to register cook cavity temperature. As heat increases in the oven, so does the resistance registered in the RTD.  is allows the control board to accurately monitor the temperature in the oven and activate/deactivate the elements as needed. Refer to the ohms/temperature chart for testing (page 6.5).

SD Card

 e SD card, which is inserted into the control board, stores the control software for the oven.

CAUTION: When inserting an SD card, always ensure it is set to unlocked; otherwise the oven will not properly save settings. DO NOT remove the card when the oven is powered up.

Before replacing the SD card, back up Favorites to a USB drive (page 4.3)

After replacing the SD card,

1. Restore Favorites from the USB drive (page 4.3).

2. Set the Oven Conﬁ guration to single or double (page 4.4).

Selector Switches

When the CookWheel or the lower oven selector switch is turned to a setting other than oﬀ , the switch between terminals 1 and 2 is closed.  is supplies L2 voltage to the lower cooling motor, the activating terminal on the K13 lower heating element relay, and the CookWheel to supply power to the upper cooling motor. In other words, whenever an oven is turned on, the electrical compartment cooling fans also turn on. In Gen 1 ovens, the fans will turn oﬀ when the oven is turned oﬀ . In Gen 2 ovens, the cooling fans will remain on for an additional two minutes after the oven has been turned oﬀ .

NOTE:  e electrical cooling fans will also turn on at any time regardless of the selector switch position if the temperature within the upper electrical compartment exceeds 140°F (60°C), or if the temperature within the lower electrical compartment exceeds 160°F (71°C).

In double wall ovens, the K13 N.O. closes and supplies L2 voltage to the bake, convection, inner broil, and outer broil elements. When a convection cycle is selected, the convection fan is also powered and will remain on until the convection cycle is no longer selected.

OVEN SYSTEMS

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5.12 OVEN SYSTEMS

Solid State Relay - K1 L1 Speedcook Heating Elements

 e K1 solid state relay is a 240 VAC, dual 40 amp relay.  is relay supplies L1 voltage to the Speedcook oven’s heating elements.  e control board sends 24 VDC to the K1 solid state relay to “open” and “close” both sides of the solid state relay, which helps ensure absolute temperature control.

Solid State Relay - K11 Bake and Convection Elements (Double Wall Oven Only)

 e K11 solid state relay is a 240 VAC, dual 40 amp relay.  is relay supplies L1 voltage to the lower oven’s bake and convection elements (24 VDC control voltage).

Solid State Relay - K12 Broil Elements: Inner and Outer (Double Wall Oven Only)

 e K12 solid state relay is a 240 VAC, dual 40 amp relay.  is relay controls the L1 voltage to the lower oven’s inner and outer broil elements.  e control board sends 24 VDC to the K12 SSR to independently “open” and “close” each side of the SSR, over 100 times per second, for absolute temperature control.

Speaker

Thermostat, Cook Cavity

To prevent temperature from running away during normal oven operation, each oven is monitored by a thermostat (270°F switch for Speedcook cavity and 280°F for the lower oven cavity in double wall ovens). In both the single and double wall oven, the switch(es) are wired to the control board through P7-18 and P8-6 (Gen 1) or pins J15-18 and J15-19 (Gen 2).

Thermostat, Cooling Fan Control

 e cooling fan control thermostats are normallyopen snap switches that will close if the temperature within the upper electrical compartment exceeds 140°F (60°C), or if the temperature within the lower electrical compartment exceeds 160°F (71°C).  ey supply voltage from the terminal block to the upper and lower cooling fans, allowing them to operate if they are needed after the CookWheel or selector switch has been turned to the oﬀ position. If either thermostat closes, both cooling fans will be powered on.

USB Port

 e USB port allows the oven operator to load software updates from a USB drive. For instructions, see page 4.3.

 e speaker provides audible feedback to the operator whenever a key is pressed or a task (such as a cook cycle) is completed, etc. See page 4.1 for adjustments.

Temperature Switch (Lower Oven)

 e temperature switch uses a six-wire (RJ) cable to communicate the temperature selection to the control board.

Transformer, Clock, 12 VAC

 e 12 VAC transformer supplies voltage to the Speedcook oven clock. For Gen 2 ovens, the 12 VAC transformer is located on the relay board (terminals RBJ18-1 and 2).

Connecting the USB Board (Gen 1 Oven)

 e USB board connects to the control board via a 10-pin molex cable (for USB board location, see page A.7). Plug one end of the molex cable into the control board’s P25 connector, as shown in Figure

5.4. Ensure that, when facing the oven, the cable’s red stripe is on your right.

NOTE:  e picture below shows the molex cable not completely inserted, ensure you completely insert the molex cable.

Red Stripe

Figure 5.4: Control Board, Connecting to USB Board

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5.13

Plug the the other end of the molex cable into the USB board as shown in Figure 5.5. Ensure that, when facing the oven, the red stripe is on your left and the two empty sockets are on your right.

NOTE:  e picture below shows the molex cable not completely inserted, ensure you completely insert the molex cable.

Two Empty Sockets

Red Stripe

Figure 5.5: USB Board, Connecting to Control Board

Wiring Harness

 e wire harness distributes power to the oven’s electrical components. See section 7 for schematics.

CAUTION:  e catalytic converter can be cleaned with TurboChef thoroughly with distilled water. Let the catalytic converter air dry before reinstalling. If TurboChef oven cleaner is not available, DO NOT use a substitute. Use distilled water only.

oven cleaner and rinsed

Exhaust Blower

 e exhaust blower is located in the bottom rear of the single wall oven. It’s purpose is to vent the hot air from the electrical compartment.

Vent Catalyst

In addition to the main catalytic converter, the Speedcook oven contains an additional catalyst in the vent tube path.  is catalyst further assists in the breakdown of grease and particulate matter before the excess air enters the atmosphere.

Exhaust System

 is section contains information about the following components:

- Catalytic converter

- Exhaust Blower

- Vent catalyst

Catalytic Converter

 e catalyst functions by substantially lowering the combustion temperature of grease entrained in the air path to approximately the same temperature of the airﬂ ow; thus the grease burns and breaks down into CO2 and H2O as it passes through the catalytic converter.  e catalyst will operate most eﬃ ciently at temperatures above 475°F (246°C).  e catalyst material is very sensitive to certain chemical compounds. Irreversible damage can occur if the catalyst is exposed to cleaning chemicals containing phosphates, NaOH, silicates, Na and Potassium Salts.  ese chemicals are found in most commercial degreasers and cleaners; therefore, only the self-clean feature should be used.

OVEN SYSTEMS

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5.14 OVEN SYSTEMS

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left blank.

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Section 6 Troubleshooting

Page 64

Page 65

6.1

Overview of Troubleshooting

 is section contains information pertinent to troubleshooting issues with the TurboChef® Residential Double Wall or Single Wall ovens.

It is divided into two main sections:

- Error Screens

- Component Testing and Troubleshooting

Within these sections, some procedures are relevant only to speciﬁ c oven models.

 e variables are:

- Double Wall Oven: If the procedure is speciﬁ c to a double-wall oven, it will be in regards to the lower oven, as the top oven is functionally identical to the single-wall oven.

- Single Wall Oven: No procedure will be speciﬁ c only to a single wall oven, as it is functionally identical to the top oven of the double-wall.

- Gen 1:  e procedure will apply only to ovens with a serial number mask of TDO######. Note that all single-wall ovens are Gen 2.

- Gen 2:  e procedure will apply only to ovens with a serial number mask of TDO2D###### or TSO2D######.

- No designation: If there is no designation on a procedure, then it applies to all oven types and conﬁ gurations.

Oven Door Open (Gen 1)

When the door is closed, two cams are rotated by the door’s actuators to close the left and right interlock N.O. switches.  ese switches are wired in series between P7-5 and P8-5 on the control board to monitor the door’s position. If this circuit is broken during the preheat or cooking cycle, or if the monitor switch, P7-15 and P8-4, fails, this error screen is displayed.

Possible causes:

-  e door is open

-  e door switch assemblies require adjustment

- Faulty left and/or right lock motor assembly

-  e switch is not closing because the left and/ or right lock motor assembly has not been

installed correctly

- Faulty wiring

- Faulty control board

- Failed monitor switch

Possible components to be replaced:

- Left lock motor assembly

- Right lock motor assembly

Troubleshooting:

1. Verify whether the door is fully closed.

2. Verify the hinges on the door have been fully inserted (see page 5.2).

For more information on part descriptions and functions, see Section 5: Oven Systems. For information on removing parts, see the Appendix.

Error Screens

Below are the descriptions and possible causes of the diﬀ erent error screens:

- Oven Door Open (Gen 1)

- Oven Door Open (Gen 2)

- Cooling Fan Failure (Gen 1)

- Cooling Fan Failure (Gen 2)

- Temperature Control Failure

- Magnetron Failure

- Blower Failure

- Oven Over Temperature

3. Test pins P8-4 and P7-15 for continuity through the monitor switch.

4. Check to see if the hinges or actuators are bent.

5. Check to see if one of the door cams are over- rotated, if so, correct or replace it.

6. Adjust the door switches.

Note: Figure 6.1 shows the adjustable version of the door switch assembly. Older versions were not adjustable. If an oven has un-adjustable switch assemblies, contact TurboChef to order the adjustable door switch assemblies.

- Remove the door switch covers, located on the right and left side of the Speedcook oven.

- Mark the original position of the adjustment slide for reference.

TROUBLESHOOTING

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6.2 TROUBLESHOOTING

- With the door fully closed, loosen the door switch’s adjustment screw(s).

- With a screwdriver, adjust the switches at the triangle adjustment slot.

- When the door open message disappears, move the slide an additional 1/32 in (.8 mm) and tighten the adjustment screw(s).

- Open and close the door to ensure that the open door message appears only when the door is open.

NOTE: If switches were adjusted or replaced, you must perform a microwave leakage test (see page 5.4).

7. If adjusting the switches does not remove the Door Open message, verify the switches are operating correctly. If not, replace the faulty switch(es). If they are, replace the control board.

Oven Door Open (Gen 2)

When the door is closed, the two cams in the switch assemblies are rotated by the door actuators.  ese cams then actuate the door sensing switches.  ese switches are wired independently to the control board; the left J15-7 and J15-8 and the right J15-9 and J15-10. If either switch is open, the error screen is displayed.

 e monitor switch can also cause this error message; check pins J15-6 and J15-5 for continuity. All other causes are covered in the Gen 1 listing, above.

Cooling Fan Failure (Gen 1)

A motion sensor on each of the two cooling fans sends voltage pulses of 5 VDC to the control board.  ese pulses are created when a magnet on the cooling fan oscillates around the sensor. If one of the fans is not spinning for any reason, its magnet will not oscillate and the fan’s motion sensor will not operate, causing this error screen to be displayed.

Possible causes:

- Loose wire connection

- Faulty cooling motor

- Faulty motion sensor

- Faulty CookWheel mechanical switch

Possible components to be replaced:

- Cooling motor assembly

See pages 6.7-6.9 for further troubleshooting.

Cooling Fan Failure (Gen 2)

 e Gen 2 oven upper cooling fan is identical to the one in the Gen 1 oven; however, the single wall oven also includes a sail switch near the bottom exhaust fan to check fan operation. If this switch fails to close, an error will be displayed. All other causes are covered in Gen 1 listing, above. See pages 6.7-6.9 for further troubleshooting.

Temperature Control Failure

Adjustment Screw Adjustment Slot

Figure 6.1: Door Switch Assembly

 e control board monitors cook cavity temperature with the use of one RTD in each oven. If the control board loses communication with an RTD, this error screen is displayed. See page 6.6 for the RTD testing procedure. Possible causes:

- Faulty wiring/loose connections

- Faulty upper or lower RTD

- Faulty control board.

Possible components to be replaced:

- RTD (upper or lower oven - both should be tested)

- Control board

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6.3

Magnetron Failure

A current transformer located on the control board monitors the current draw of the microwave system.  e oven uses two separate magnetron circuits, each drawing approximately 8-9 amps. If the control board senses 0 amps, this error screen is displayed.

Possible causes:

- Faulty K3 or K4 relay (Gen 1) or relay 2 or 3 (Gen 2; the entire relay board must be replaced)

- Faulty left or right high-voltage transformer

- Faulty left or right high-voltage capacitor

- Faulty left or right high-voltage diode

- Faulty left or right magnetron

- Faulty 20-amp fuse (Gen 2: located on relay board as F1 fuse)

- Faulty wiring

- Faulty control board

- Faulty left or right magnetron thermostat

Possible components to be replaced:

- K3 relay (Gen 1) or relay 2 or 3 (Gen 2; the entire relay board must be replaced)

- K4 relay (Gen 1) or relay 2 or 3 (Gen 2; the entire relay board must be replaced)

- High voltage transformer

- High voltage capacitor

- High-voltage diode

- Magnetron

- 20 amp fuse (Gen 2: located on relay board as F1 fuse)

- Control board

- Left or right magnetron thermostat

Magnetron Failure Troubleshooting

1. Pull the oven 11” (280 mm) from the cabinet and remove the top front cover.

2. Place the oven in Installer Setup mode (page 4.4).

3. Place a water load in the cook cavity.

DANGER: DO NOT touch or attempt to measure the magnetrons, HV transformers, capacitors, or any component within the microwave circuit while the magnetrons are running. Lethal voltage will be present.

5. Turn the magnetrons oﬀ . Depending on the measurement, follow the below steps.

If 15-19 amps are present, verify the magnetron cooling fans are running whenever the magnetrons are running.  e thermostats can cause the magnetrons to shut down and reset when cool.

If 8.5-10 amps are present,

1. Check relay operation. For Gen 1, check the control voltage from the control board at P8-13 + P8-5, and at P8-14 + P8-5. For Gen 2, visually check relays 2 and 3 for operation. If they operate correctly, check the HV outputs to each transformer at terminals RBJ-4 + RBJ-5.

2. Isolate the left and right magnetron circuits and retest. For Gen 1 ovens, remove the brown lead to the transformer. For Gen 2 ovens, remove either RBJ-4 or RBJ-5.

If 0 amps are present,

1. Ensure power is reaching the oven from the wall.

2. Check the 20-amp fuse.

3. Check for incoming voltage at each transformer when the magnetrons are energized. For Gen 1, test voltage from the relays at the transformer. For Gen 2, 208 or 240 VAC must be between the blue wire at the CT coil (CT1-B) and either terminal RBJ-5 (right) or RBJ-4 (left) on the

relay board.

Blower Failure

 e control board sends voltage to the blower motor speed controller (BMSC) to activate the blowers. If both blowers successfully activate, a signal is sent back to the control board to verify the system is functioning normally. If that signal is not sent back to the control board, this error screen is displayed.

Possible causes:

- BMSC (blower motor speed control)

- Blower motors

- Faulty control board

- Faulty wiring

- Faulty relay board (Gen 2 only)

TROUBLESHOOTING

4. Turn the magnetrons on and measure for 15-19 amps around the wire in the current transformer loop on the control board.

Possible components to be replaced:

- BMSC

- Blower motors

- Control board

- Relay board (Gen 2 only)

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6.4 TROUBLESHOOTING

Blower Failure Troubleshooting

1. Conﬁ rm the motor is turning freely. Check for obstructions.

2. Test the upper motor for 0-10 VDC incoming on

- Gen 1: P10-1 and P7-17 (control board)

- Gen 2: RBJ22-5 and RBJ22-8 (relay board)

3. Test the lower motor for 0-10 VDC incoming on

- Gen 1: P10-2 and P7-19 (control board)

- Gen 2: RBJ22-6 and RBJ22-8 (relay board)

4. Check for line voltage to the motor controller (power is supplied from the EMI ﬁ lter).

5. Ohm-test the motors for 5.9-7.3 ohms.

Oven Over Temperature

To prevent temperature from running away during normal oven operation, each oven cavity is monitored by a thermostat (270°F [132°C] switch for Speedcook cavity and 280°F [138°C] for the lower oven cavity in double wall ovens). In both the single and double wall oven, the switch(es) are wired to the control board through P7-18 and P8-6 (Gen 1) or pins J15-18 and J15-19 (Gen 2). If the ambient temperature near these thermostats exceeds the temperatures given above, this error screen is displayed.  e thermostats are self resetting; however, the oven is disabled until both switches are closed.

Possible causes:

- Overheated oven

- Faulty wiring

- Faulty thermostat switch

- Faulty control board

Control System

 is section contains testing and troubleshooting procedures for the following components:

- Clock assembly

- Control board

- CookWheel control (Speedcook oven)

- EMI ﬁ lter

- Oven mode switch (lower oven)

- Power supply, 12 VDC

- Power supply, 24 VDC

- RTD

- Transformer, clock, 12 VAC (located on relay board on Gen 2 ovens)

Clock Assembly

1. Access the upper electrical compartment.

2. Apply voltmeter probes to pins 1 and 5 on the clock assembly.

3. If approximately 12 VAC is present, the clock assembly is faulty and needs to be replaced. If no voltage is present, test the 12 VAC transformer.

Control Board

1. Verify all wiring is secure and correctly connected. See section 7 for wiring schematics.

2. Ensure the SD card is in the unlocked position (always remove power form the oven before removing the SD card).

3. Troubleshoot other oven components related to the failure if applicable.

4. If required, replace the control board.

Component Testing and Troubleshooting

 is section contains the following sub-sections:

- Control system

- Halogen light system

- Cooling system

- Air impingement system

- Microwave system

- Heating system, Speedcook oven

- Heating system, lower oven

5. Fill out the tag supplied with the replacement board (identifying the issue) and return it to TurboChef with the bad control board.

CookWheel Control (Speedcook Oven)

1. Access the upper electrical compartment.

2. Verify the CookWheel’s switch closes and opens normally.  is test assumes that the CookWheel is receiving voltage from the 15-amp fuse (see page A.15 for Gen 1 location, page A.19 for Gen 2 location). If no voltage is present, then the lights, screens, clock, etc. will not function.

3. Disconnect the N.O. wire from the terminal.

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6.5

4. To test the switch in the open position, turn the CookWheel to the oﬀ position.

5. Apply the probes of the voltmeter to the now-

exposed CookWheel N.O. terminal and ground.

 e voltage reading should be 0 VAC.

- If voltage is present, the CookWheel control/switch is stuck closed. Replace the CookWheel.

- If no voltage is present, the CookWheel is functioning properly in the open position.

6. To test the switch in the closed position, turn the CookWheel to the Bake position.

7. Apply the probes of the voltmeter to the same CookWheel N.O terminal and ground.  e voltage reading should be 120 VAC.

- If no voltage is present, the CookWheel is stuck open and needs to be replaced.

- If 120 VAC is present, the CookWheel is functioning properly in the closed position.

EMI Filter

1. Disconnect power before ohm testing.

2. Check for continuity from Line to Load tabs (both legs). Replace if open.

3. Check for open circuit between L1 and L2 tabs (L1 to case, L2 to case). Replace if shorted.

Oven Mode Switch (Lower Oven)

1. Access the lower electrical compartment by removing the oven frame as shown on page A.10.

2. Verify the oven mode dial switch closes and opens normally.  is test assumes that the oven mode dial is receiving voltage from the 15-amp fuse. If no voltage is present the lights, LCD screens, clock, etc. will not function.

3. Disconnect the N.O. blue wire from terminal 2.

4. Test the switch while it is open, turn the oven mode dial to the oﬀ position.

5. Apply the probes of the voltmeter to the now-

exposed oven mode dial N.O. terminal 2 and

ground.  e voltage reading should be 0 VAC.

- If voltage is present, the oven mode switch is stuck closed. Replace the oven mode switch.

- If no voltage is present, the oven mode switch is functioning properly in the open position.

6. Test the switch in the closed position by turning the oven mode dial to the Bake position.

7. Apply the probes of the voltmeter to the same CookWheel terminal and ground.  e voltage reading should be 120 VAC.

- If no voltage is present, the oven mode switch is stuck open and must be replaced.

- If 120 VAC is present, the oven mode switch is functioning properly in the closed position.

Power Supply, 12 VDC

1. Test the voltage.

- To test the upper light voltage. Test for 12 VDC at pins 1 and 4 on the power supply.

- To test for lower light voltage. Test for 12 VDC at pins 2 and 3 on the power supply.

2. If the upper or lower lights are not receiving the correct voltage, test for 120 VAC at the blue L2 and white neutral wire terminals.

- If 120 VAC is present at the terminals, disconnect the load wires and recheck for 12 VDC output. Investigate shorted wiring before replacing the power supply.

- If 120 VAC is not present at the terminals, check the 15-amp fuse/fuse block (Gen 1) or fuse output RBJ-6 on the relay board (Gen 2).

Power Supply, 24 VDC

1. Test the voltage.

- For Gen 1, verify voltage to the power supply from the 15-amp fuse.

- For Gen 2, verify voltage to the power supply from terminal RBJ-6 on the relay board.

2. Test for 120 VAC at the terminals at the thick blue and white wires on the left.

- If 120 VAC is not present, then probably no oven functions are operating. Ensure the

15-amp fuse is operating correctly.

- If 120 VAC is present, continue to step 3.

3. Test for 24 VDC at the terminals at the thick

red and black wires on the right. If 24 VDC is not present, disconnect the load wires and recheck for 24 VDC output. Investigate shorted wiring before replacing the power supply.

TROUBLESHOOTING

Page 70

6.6 TROUBLESHOOTING

°F 0° +20° +40° +60° +80° +100° +120° +140° +160° +180° +200°

0°

+200°

+400°

+600°

Figure 6.2: Temperature-Ohm Chart (Fahrenheit)

°C 0° +10° +20° +30° +40° +50° +60° +70° +80° +90° +100°

0°

+100°

+200°

+300°

Figure 6.3: Temperature-Ohm Chart (Celsius)

90.03  97.39  101.74  106.07  110.38  114.68  118.97  123.24  127.50  131.74  135.97 

135.94  140.18  144.38  148.57  152.74  159.90  161.04  165.17  169.29  173.39  177.47 

177.47  181.54  185.60  189.64  193.67  197.69  201.69  205.67  209.64  213.60  217.54 

217.54  221.47  225.38  229.28  233.17  237.04  240.90  244.74  248.57  252.38  256.18 

100.00  103.90  107.79  111.67  115.54  119.40  123.24  127.07  130.89  134.70  138.50 

138.50  142.29  146.06  149.82  153.58  157.31  161.04  164.76  168.46  172.16  175.84 

175.84  175.91  183.17  186.82  190.45  194.07  197.69  201.29  204.88  208.45  212.02 

212.02  215.57  219.12  222.65  226.17  229.67  233.17  236.65  240.13  243.59  247.04 

RTD

 e procedures below outline troubleshooting procedures for the RTD in the Gen 1, Gen 2, and Single Wall Oven.

Troubleshooting the RTD (Gen 1),

1. Turn oven power oﬀ and pull the oven 11” (280 mm) out of the cabinet.

2. Remove the top front cover.

3. Remove P9 from the control board and test the lower RTD on pins P9-5 and P9-6 for 109 ohms at 75°F (24°C).

4. Remove P10 from the board and test the upper sensor on pins P10-19 and P10-20 for 109 ohms at 75°F (24°C).

5. If 109 ohms (or appropriate value) are present, replace the control board and retest. If not, replace the appropriate RTD and retest.

Troubleshooting the RTD (Gen 2),

1. Turn oven power oﬀ and pull the oven 11” (280 mm) out of the cabinet.

2. Remove the top front cover.

Troubleshooting the RTD (Single Wall Oven),

1. Disconnect power from the oven.

2. Disconnect J15 from the control board.

3. Test the RTD on pins J15-20 and J15-21 for

109 ohms at 75°F (24°C).

4. If 109 ohms (or appropriate value) are present,

replace the control board and retest. If not, replace the RTD and retest.

Transformer, Clock,12 VAC (Gen 1)

1. Test for 12 VAC at the terminals at the two thin

white wires.

- If 12 VAC is present, the transformer is functioning properly.

- If no voltage is present, continue to step 2.

2. Test for 120 VAC at the terminals of the thick

white and blue wire.

- If 120 VAC is present, the transformer is

faulty and needs to be replaced.

- If no voltage is present, investigate the 15

amp fuse/fuse block.

3. Remove J16 from the control board and test the lower RTD on pins J16-8 and J16-9 for 109 ohms at 75°F (24°C).

4. Remove J15 from the control board and test the upper RTD on pins J15-20 and J15-21 for 109 ohms at 75°F (24°C).

5. If 109 ohms (or appropriate value) are present, replace the control board and retest. If not, replace the appropriate RTD and retest.

Transformer, Clock,12 VAC (Gen 2)

1. Test for 12 VAC at terminalsRBJ18-1 and

RBJ18-2 on the relay board.

- If 12 VAC is present, the transformer is functioning properly.

- If no voltage is present, continue to step 2.

2. Test for 120 VAC at the terminals at the thick

white and blue wire.

Page 71

6.7

- If 120 VAC is present, the transformer is faulty and the relay board needs to be replaced.

- If no voltage is present, investigate the 15 amp fuse (F2) on the relay board.

Halogen Light System

 is section contains information on the following topics:

- Light switch, control panel

- Light switch, Speedcook oven

- One Speedcook oven light is out

- Both Speedcook oven lights are out

- Both Speedcook oven and both lower oven lights are out (double-wall oven)

Light Switch, Control Panel (Manual)

1. Access the control panel light switch through the upper electrical compartment.

2. Disconnect the light switch from the harness. Separate the harness at the connection between the blue/black wires.

1. Replace the bulb (see page 5.5).

2. If replacing the halogen bulb did not ﬁ x the

problem, access the rear of the halogen light assembly and disconnect the two green wires at the wire connectors.

3. Apply the probes of the voltmeter to the two

green wires leading from the oven.  e voltage reading should be 12 VDC.

- If 12 VDC is present, the halogen light assembly is faulty and needs to be replaced.

- If 12 VDC is not present, check all wires

and connections in the halogen light system.

Both Speedcook Oven Lights are Out

When the control panel switch is pressed and the oven door is closed, test the control panel switch. When the oven door is opened and the control panel switch is not pressed, test the light switch/left lock motor assembly.

Both Speedcook Oven and Both Lower Oven Lights are Out (Double Wall Oven)

3. Apply the probes of the ohmmeter to the two black wires attached to the switch.

4. Check for continuity through the switch by manually engaging the switch.

Light Switch, Speedcook Oven (Door-Actuated)

1. Access the light switch by removing the left lock motor assembly.

2. Disconnect wiring leading to the light switch.

3. Apply the probes of the ohmmeter to the electrical connector still attached to the assembly, pins 2 and 6 (purple wires).

4. Check for continuity through the switch by manually engaging the switch.

One Speedcook Oven Light is Out

CAUTION: DO NOT touch the bulb with bare ﬁ ngers; rather, use gloves, cloth or tissue to hold the bulb. If the bulb is accidentally touched, clean it with isopropyl alcohol before applying power.

Test the 12 VDC power supply (see page 6.5 for troubleshooting).

Cooling System

 is section contains information on the following topics:

- Cooling fan overview (Gen 1)

- Cooling Fan Overview (Gen 2)

- Troubleshooting Cooling Fans (Gen 1)

- Troubleshooting Cooling Fans (Gen 2)

Cooling Fan Overview (Gen 1)

A motion sensor on each of the two cooling fans sends voltage pulses of 5 VDC to the control board. If one of the cooling fans is not spinning, a cooling fan error will be displayed.

Components that activate the cooling fans are:

- CookWheel (Speedcook oven)

- Mode knob (lower oven)

- 140°F (60°C) snap switch (Speedcook oven)

- 160°F (71°C) snap switch (lower oven)

TROUBLESHOOTING

Page 72

6.8 TROUBLESHOOTING

Possible components to be replaced:

- Cooling fan assembly

- F3 5 amp fuse (Gen 1)

- CookWheel mechanical switch (Speedcook oven)

- Cook mode mechanical switch (lower oven)

- 140°F (60°C) snap switch (Speedcook oven)

- 160°F (71°C) snap switch (lower oven)

- Control board

- K9 Relay

Cooling Fan Overview (Gen 2)

 e Gen 2 double wall oven has two cooling fans: one for the top oven and one for the bottom oven.  e single wall oven also has two cooling fans, but the lower cooling fan has a sail switch instead of a hall eﬀ ect motion sensor to check fan operation. If the sail switch fails to close, a cooling fan error will be displayed. Components that activate the cooling fans are:

- CookWheel (Speedcook oven)

- Mode knob (lower double wall oven)

- 140°F (60°C) snap switch (Speedcook oven)

- 160°F (71°C) snap switch (lower oven)

- Control board when the Speedcook cavity temperature is above 350°F (177°C) and the Cook-Wheel is in the oﬀ position.

- Relay board

NOTE: If the CookWheel is set to “oﬀ ,” the cooling fans will stay on for an additional 2 minutes after the cook cavity temperature recedes below 350°F (177°C). If the CookWheel is set to any other mode, the fans will remain on.

NOTE: If the Speedcook cook cavity temperature is above 350°F (177°C) or either snap switch has closed, the cooling fans will remain on even if the CookWheel is in the oﬀ mode.

Troubleshooting Cooling Fans (Gen 1)

If a cooling fan failure message is displayed, test the top and bottom motor assemblies by performing the following steps:

1. Press the Cancel button on the top display to clear the cooling fan error message.

2. Turn the CookWheel to the oﬀ position.  e cooling fans should turn oﬀ (unless one of the snap switches has closed).  e magnetron fans will continue to operate for two minutes.

3. Turn the CookWheel to favorites or the lower

cook mode knob to bake. You should hear the fans running and also feel a slight amount of air being discharged from the bottom of the oven.

4. If the fans are not operating, remove the oven

from the cabinet approximately 11” (279 mm) and remove the top front panel.

5. Check the motion sensor signal outputs to the

control board by applying multimeter probes to P9-7 and P9-17 for the bottom cooling fan and P8-10 and P7-12 for the top cooling fan.

- If 2.5 VDC is present, the fan is functioning

normally. If both cooling fans register 2.5 VDC while the cooling fan failure message is displayed, the control board is faulty and needs to be replaced.

- If 5 VDC or 0 VDC is present, either a

cooling fan motion sensor is faulty or a motor assembly is not functioning and needs to be tested.

6. If neither fan is operating, check the 5 amp fuse

located on the right magnetron cover in the top oven electrical compartment. If the fuse has not blown, Check the operation of the Cookwheel and the K9 relay. If the fuse has blown, continue to step 7 before replacing fuse.

7. Troubleshoot the following potential reasons as

to why the fuse was blown:

- Does the control board reset when the

CookWheel is in the oﬀ mode?

- Was/is there a supply power surge?

- Is the cooling fan faulty?

- Is any wiring faulty?

- Is the control board faulty?

8. Remove the 5-amp fuse, turn the Cookwheel to

oﬀ , and check the single side terminal of the fuse block for 120 VAC.

9. If voltage is present, check the control board for

24 VDC at pins P7-3 and P8-16 (K1-A), P7-3 and P8-15 (K1-B), P8-9 and P7-8 (K8). If 24 VDC is present on one or more of these test points, replace the control board. If the 5-amp fuse was blown and no 24 VDC found, check the K1 and K8 relays for shorted closed condition.

10. If after performing the above steps the cooling

fans are still not functioning, completely remove the oven from the cabinet for access.

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6.9

11. Turn the CookWheel to favorites.

12. Test the cooling fan motor assemblies by applying voltmeter probes to the terminals on the motor.  e voltage reading should be 120 VAC.

- If 120 VAC is present and the fan is not functioning, replace the cooling fan.

- If voltage is not detected, test the source of the voltage at the cookwheel mechanical switch (top oven), mode mechanical switch (bottom oven), 15 amp fuse, and the circuit wiring for breaks.

Troubleshooting Cooling Fans (Gen 2)

If a cooling fan failure message is displayed, test the top and bottom cooling fan motor assemblies:

1. Turn the CookWheel to oﬀ to clear the cooling fan error message.  e cooling fans should turn oﬀ after two minutes (unless one of the snap switches has closed or the upper cook cavity is above 350°F [177°C]).

2. Turn the CookWheel to favorites or the lower mode knob to bake (double wall oven). You should hear the fans running and also feel a slight amount of air being discharged from the bottom of the oven.

NOTE:  e cooling fan error message will display again after the CookWheel has been turned to favorites for ﬁ ve minutes. If the CookWheel is not turned to favorites after the cooling fan error message displays, the cooling fans will turn oﬀ after approximately 2 minutes.

3. If the fans are not operating, remove the oven from the cabinet approximately 11” (279 mm) and remove the top front panel.

4. Check the motion sensor signal outputs to the control board:

- For the double wall oven, apply multimeter probes to J15-16 and J15-17 for the top oven cooling fan and J16-2 and J16-3 for the bottom oven cooling fan. If the fans are on, 2.5 VDC should be present. A reading of 0.0 VDC or 5.0 VDC means the cooling fans are not rotating. Check sensor wiring and cooling fan for operation.

- For the single wall oven, turn the

CookWheel to favorites and test pins J16-2 and J16-3 for 0 VDC at the control board. If 0 VDC is present, then the sail switch is activated, indicating the lower fan is turning. If approximately 4.5 VDC is present, either the fan is not turning or the switch is stuck. Remove the fan to determine the faulty part.

NOTE: Single Wall Ovens do not use a motion sensor on the bottom fan.

5. If both fans are functioning and sending the

correct voltage to the control board, but a cooling fan error is displayed, replace the control board.

6. If the cooling fans do not operate properly,

check the following components:

- Cooling fan assembly (top and bottom)

- CookWheel switch (Speedcook oven)

- Mode mechanical switch (bottom oven)

- 140°F (60°C) snap switch (Speedcook oven)

- 160°F (71°C) snap switch (lower oven)

- Sail switch (single wall oven only)

- Control board

- Relay board

Air Impingement System

 is section contains information on:

- Blower motors, Speedcook oven

- Convection fan, lower oven

Blower Motors, Speedcook Oven

1. Access the Speedcook oven blower motors (see

pages A.24 and A.26).

2. To test the blower motors, take an ohm

reading of each motor. Disconnect the output from the motor controller (BMSC) and check the ohms from phase to phase (red to black, black to white, and red to white). All the readings must be between 5.9 and 7.3 ohms. If any of these readings are diﬀ erent, replace the motor.

- Check the resistance through the meter

leads by touching them together. Subtract this number from the reading of the motor

TROUBLESHOOTING

Page 74

6.10 TROUBLESHOOTING

to ensure accuracy. If either motor does not register between 5.9 and 7.3 ohms, replace that motor and retest the oven.

3. Verify 0-10 VDC is being sent to the motor controller.

- For Gen 1 ovens, check the control board on P10-1 and ground for upper, check P10 2 and ground for lower.

- For Gen 2 ovens, check the relay board terminals RBJ22-5 and RBJ22-3 for upper, check RBJ22-6 and RBJ22-4 for lower.

- If no voltage is present, replace the control board.

4. Verify 208/240 input to motor controller by measuring the brown and blue wires on the 3-pin connector.

5. If all the above tests are veriﬁ ed, replace the motor controller.

Convection Fan, Lower Oven

1. Turn the lower oven mode dial to Convection Bake to activate the convection fan. If the fan does not activate immediately, turn the lower oven oﬀ and access the convection fan motor inside the oven (see page A.28).

CAUTION: Voltage on terminals could cause injury. Proceed with caution.

Testing a Capacitor

DANGER: Never attempt any measurement of the capacitors while they are enabled. Lethal voltage will be present. Measure only in compliance with these procedures.

To test for an open or shorted capacitor:

1. Disconnect the oven from the power source.

2. Fully discharge the capacitor.

3. Isolate the capacitor from the circuit.

4. Check for an open or shorted capacitor by

placing ohmmeter leads between the capacitor terminals:

- Inconsistent readings = capacitor not

shorted or open.

- Constant inﬁ nite resistance = capacitor open

- Constant very low resistance = capacitor

shorted

5. If the capacitor is not open or shorted, set the

meter to measure microfarad capacitance and again place the leads between the capacitor terminals.  e meter reading should equal the label value, plus or minus 10%. If not, replace the capacitor.

To test for capacitor terminals that may be shorted to casing:

1. Disconnect the oven from the power source.

2. Apply the voltmeter probes to the convection fan motor’s terminals.

- If 120 VAC is not present, investigate the oven mode dial for a loose wire to terminal

3 or a faulty switch.

- If 120 VAC is present, the convection fan

motor is faulty and needs to be replaced.

Microwave System

 is section contains information on the following topics:

- Testing a capacitor

- Testing a high-voltage diode

- Testing a high-voltage transformer

- Testing a magnetron for open/shorted ﬁ lament

See page 6.2 for additional troubleshooting for a magnetron failure message.

2. Fully discharge the capacitor.

3. Isolate the capacitor from the circuit.

4. Place one meter lead on a terminal and the other on the metal jacket of the capacitor. Inﬁ nite resistance must be seen. Any other reading means the capacitor should be replaced.

Testing a High-Voltage Diode

DANGER: Before replacing the high-voltage diode, ensure the oven is removed from any power source. Replacing this component while the oven is plugged in can result in serious injury or death.

DANGER: Never attempt to measure high voltage directly. Death or serious injury could result.

1. Disconnect the oven from the power source.

2. Fully discharge the capacitors.

Page 75

6.11

3. Disconnect the diode from the circuit.

4. Set the voltage meter to DC voltage and

connect it in series with the diode and a 9-volt battery.

5. Connect one meter lead to one side of a 9-volt

battery and the other lead to one side of the diode.

6. Connect the other side of the 9-volt battery to

the other side of the diode. DC voltage should only be present on the meter in one direction.

7. Switch the meter leads on the diode, which will

cause the opposite reading to be visible. voltage between 5-7 VDC should be present in only one direction and 0-0.1 VDC in the other direction, depending on the battery voltage.

Testing a High-Voltage Transformer

DANGER: Before replacing the transformer, ensure the oven is removed from any power source. Replacing this component while the oven is plugged in can result in serious injury or death.

1. Disconnect the power source and discharge the high-voltage capacitors.

2. Isolate the magnetron from the circuit by removing the wires from terminals F and FA.

3. An ohmmeter connected between the ﬁ lament terminals (F, FA) should indicate a reading of less than 1 ohm.

4. A continuity check between either ﬁ lament terminal and the magnetron chassis should indicate an inﬁ nite resistance (open).

CAUTION: Be careful to not allow debris into the waveguides when servicing the magnetrons.

Heating System, Speedcook Oven

 e Speedcook oven heating elements require 208240 VAC to operate.

NOTE:  e elements are voltage speciﬁ c and cannot operate properly without the correct voltage applied. Conﬁ rm incoming voltage matches the oven’s speciﬁ cations (listed on the serial plate behind the oven door).

DANGER: Never attempt to measure the secondary voltage values of the transformers when they are enabled. Lethal voltage will be present.

1. Disconnect the power source and discharge the

high-voltage capacitors.

2. Disconnect all the wires on the transformer.

3. Use an ohmmeter to check primary winding,

secondary winding, and ﬁ lament.

- Primary Side

240 VAC: Taps 1&3 = 1.4 Ω 208 VAC: Taps 1&2 = 1.2 Ω

- Secondary Side

240 & 208 VAC: Tap 4&Casing = 70.1 Ω

- Filament

240 & 208 VAC: Red Wires = 0.1 Ω

Testing a Magnetron for an Open/Shorted Filament

DANGER:  e only safe way to test a magnetron is by a resistance test of its ﬁ lament. Never attempt to measure the magnetron using any other method while the microwave system is on. Death or serious injury could occur.

When the CookWheel is turned to any of the seven cooking cycles (except Favorites), the control board sends voltage to activate the relays, which supply power to the heating elements. L1 voltage for the two primary elements are supplied through the K1 SSR and the L1 voltage for the preheat element is supplied through the K8 relay (Gen 1) or preheat relay 14 (Gen 2 relay board).  e L2 voltage for all three elements is supplied from the N.O. contact on the K9 relay.

If the oven is not heating normally, see the below troubleshooting options and use the one that best describes the situation.

 is section contains information on the following topics:

- Heater element, Speedcook oven

- No heat

- Oven is heating up very slowly

- Testing for control voltage to the K1 SSR

- Testing for control voltage to the K8 relay (Gen 1)

- Testing relay 14, preheat (Gen 2)

- Testing for a K9 relay that is stuck open

- Testing for a K1 SSR that is stuck open

TROUBLESHOOTING

Page 76

6.12 TROUBLESHOOTING

Heater Element, Speedcook Oven

Remove the wire connections and apply the probes of an ohmmeter to each element’s respective terminals.  e resistance should register 23 ohms for a 240 VAC unit and 17.0 ohms for a 208 VAC unit. If extreme resistance (a variance above 10%) is detected the element is faulty and needs to be replaced. Ensure that the elements are at room temperature.  e temperature of the elements will change the heater’s resistance.

No Heat

1. Turn the CookWheel to Bake to activate the

preheating process.  e oven should immediately make an audible ‘click’ when the K9 relay closes. Wait 2-3 minutes and the oven should heat noticeably. If no heat is present, pull the oven out 11” (280 mm) to access the front half of the upper electrical compartment.

2. Check the high limit switch. Press the red

button to reset the switch. If the oven is still not heating, verify L1 (brown wires) and L2 (blue wires) power is reaching the heater elements.

3. Turn the CookWheel to oﬀ , then disconnect the

three top brown wires from the high limit switch and turn the CookWheel to Bake.

4. Apply the probes of the voltmeter to each of the

exposed female wire terminals and to ground. If any of the terminals do not register 120 VAC, check the breaker for a partial or full trip.

5. If the high limit switch is functioning

properly, apply one probe to any one of the exposed female wire terminals and keep it there. Apply the other probe to the three male terminals on the high limit switch in sequence. At least one of the three readings should register 240 VAC if the oven is heating (if this is the case, go to Oven is Heating Up Very Slowly, adjacent).

Oven is Heating up Very Slowly

1. Turn the CookWheel to Bake to begin preheating.  e oven should immediately make an audible ‘click’ when the K9 relay closes.

2. After 2-3 minutes, the oven should heat noticeably. If little heat is present, pull the oven 11” (280 mm) from the cabinet to access the front half of the upper electrical compartment.

NOTE: If the oven is heating, the K9 relay is functioning because it is the single source of L2 voltage to all three elements.  erefore, testing should begin with L1 voltage reaching the elements.

3. Turn the CookWheel to oﬀ , then disconnect the three top brown wires from the high limit switch.

4. Turn the CookWheel to Bake.

5. Apply one probe of the voltmeter to any one of the exposed female wire terminals and keep it there. Apply the other probe to the three male terminals on the high limit switch in sequence. At least one of the three readings should register 240 VAC if the oven is heating at all.

6. If either of the primary elements is not receiving 240 VAC, test the K1 SSR to verify it is receiving voltage from the control board to activate.

7. If the preheat element is not receiving 240 VAC:

- Gen 1: Test the K8 relay for 24 VDC from the control board to activate.

- Gen 2: Test relay 14 for 9 amps on the relay board at RBJ10 and RBJ11.

Testing for Control Voltage to the K1 SSR

DANGER: A high-voltage capacitor is located near this relay. Contact with the high-voltage capacitor could result in serious injury or death.

1. Turn the CookWheel to Bake to begin the preheat cycle.

6. If none of the elements are receiving 240 VAC,

test the K9 relay, then the K1 and K8 relays (Gen 1) or K1 and relay 14 on the relay board (Gen 2) to verify both are receiving control voltage from the control board.

2. For Gen 1 ovens, apply the voltmeter probes to P7-3 and P8-15, then to P7-3 and P8-16 (on the control board). For Gen 2 ovens, apply the voltmeter probes to RBJ22-7 and RBJ22-1, RBJ22-7 and RBJ22-2 (on relay board).  e voltage reading for each should be 24 VDC. If 24 VDC is present, the relay is receiving voltage.

Page 77

6.13

Testing for Control Voltage to the K8 Relay (Gen 1)

DANGER: A high-voltage capacitor is located near this relay. Contact with the high-voltage capacitor could result in serious injury or death.

1. Turn the CookWheel to Bake to begin the

preheat cycle.

2. Apply the probes of the voltmeter to P7 – 8 and

P8 – 9 (on the control board).  e voltage reading should be 24 VDC.

- If 24 VDC is present, the relay is receiving

voltage.

- If either/both of the relays fail to receive

voltage, replace the control board and test the oven. If both relays are receiving 24 VAC, pull the oven out of the cabinet to test the K9, K1, and K8 relays, as well as the heating elements.

Testing Relay 14 (Pre-Heat) Operation (Gen 2)

1. Turn the CookWheel to Bake to begin the

preheat cycle.

2. Apply the amprobe to the wire on terminal

RBJ11 and conﬁ rm a measurement of approxi mately 9 amps is present. If 0 amps is present, ensure the pre-heat element is not faulty by checking the L1 voltage at terminal RBJ-10 to ground and RBJ-11 to ground (of the relay board). If voltage is present, continue.

verify the relay is receiving voltage from the blue wires still attached to the relay in the upper-left corner.

4. If voltage is present, replace the relay and test the oven. If no voltage is present, investigate for broken wires.

5. If the K9 relay is functioning normally, test if both the K1 and K8 relays are stuck open.

Testing for a K1 SSR that is Stuck Open

DANGER: A high-voltage capacitor is located near this relay. Contact with the high-voltage capacitor could result in serious injury or death.

Before servicing: a) Remove power from the oven. b) Discharge the high-voltage capacitors. c) Disconnect the primary voltage wiring of the high-voltage transformers.

1. After completing safety instructions above, reconnect power to the oven and turn the CookWheel to Bake.

2.  e solid state relay is unable to be checked with an ohm test for continuity. Test for voltage through the switch by energizing the relay and leaving the brown wires connected, but pulled back enough to get a meter probe on the terminal.

NOTE: L1 voltage enters the relay board from the high limit switch at terminal RBJ-10 and leaves through RBJ-11.

Testing for a K9 Relay that is Stuck Open

1. Disconnect the single blue L2 wire and the three

blue L2 wires from the K9 relay.

2. Turn the CookWheel to Bake to activate the K9

relay; it should make an audible click if functional.

NOTE:  e K9 relay uses 120 VAC to activate the coil.

3. Apply the probes of the multi-meter to the

common and N.O. terminals of the K9 relay that are now exposed.  ey should register continuity with an ohms test. If they do not,

CAUTION: DO NOT touch the meter leads together; this will cause the relay to short.

3. Set the meter to AC volts. A reading of 0 indicates a closed switch, and a reading of 208/ 240 indicates an open switch.

4. If both relays function normally, ohm out the heating elements and inspect the element’s terminals.

Heating System, Lower Oven

 e lower oven heating elements require 208-240 VAC to operate.

TROUBLESHOOTING

Page 78

6.14 TROUBLESHOOTING

When the oven mode dial is turned to any of the seven cooking settings, the control board sends voltage to activate the relays, which supply power to the heating elements. L1 voltage for the bake and convection elements are supplied through the K11 SSR and the L1 voltage for the inner and outer broil elements is supplied through the K12 SSR.  e L2 voltage for all three elements is supplied from the N.O. contact on the K13 relay. If the oven is not heating normally, use the below troubleshooting option that best describes the situation.

 is section contains information on the following topics:

- Lower oven heating element speciﬁ cations

- No heat/slow to heat

- Testing for voltage to activate the K11 SSR

- Testing for voltage to activate the K12 SSR

- Testing for a K11 SSR that is stuck open

- Testing for a K12 SSR that is stuck open

- Testing for a K13 relay that is stuck open

NOTE: Line voltage is routed to the bottom oven from the terminal block in the upper electrical compartment. Brown, blue, and white wires will be traveling together on the far left side of the oven frame.

4. Verify that no amperage is being drawn to the elements. If any amperage is present, the K13 relay is functioning because it is the single source of L2 voltage to all three elements.  erefore, testing should begin with L1 voltage reaching the elements.

5. Check the high limit switch in the lower electrical compartment to see if it tripped. If so, press the red button to reset the switch.

6. Use the amp-meter on the brown wire in the upper electrical compartment again to verify the elements are drawing current.

7. If the oven is still not heating, test for which leg of power is not reaching the elements.

Lower Oven Heating Element Speci cations

Element Amps at

208 volts

Bake 12.8 11.0 15.4 20.5

Convection 7.4 6.5 26.5 34.5

Inner broil 9.7 9.0 20.0 25.5

Outer broil 5.2 4.6 36.5 49.5

Amps at 240 volts

Ohms at 208 volts

Ohms at 240 volts

NOTE: If the bake or convection element are not activating, test for voltage to activate the K11 SSR. If the inner or outer broil elements are not activating, test for voltage to activate the K12 SSR.

No Heat/Slow to Heat

1. Turn the oven mode dial to Bake to begin

preheating.  e oven should immediately make an audible ‘click’ when the K13 relay closes.

2. After 2-3 minutes, the oven should heat

noticeably. If no heat is present, pull the oven 11” (280 mm) from the cabinet to access the front half of the upper electrical compartment and the left and right lower electrical compartment access panels.

3. Using an amp-meter, test the brown wire on the

left side of the upper electrical compartment.

8. Turn the oven mode dial to oﬀ , then access the K13 relay behind the right side lower electrical compartment access panel.

Testing for Control Voltage to the K11 SSR

1. Turn the oven mode dial to Broil.

2. For Gen 1 ovens, apply the voltmeter probes to P9-2 and P9-15, then to P9-2 and P9-16 (of the control board). For Gen 2 ovens, apply voltmeter probes to terminals RBJ17-5 and RBJ17-2, then RBJ17-5 and RBJ17-1 (on the relay board).  e voltage reading for each should be 24 VDC.

Testing for Control Voltage to the K12 SSR

1. Turn the oven mode dial to Bake to begin the preheat cycle.

2. For Gen 1 ovens, apply the voltmeter probes to P9-3 and P9-13, then to P9-3 and P9-14 (of the control board). For Gen 2 ovens, apply voltmeter probes to terminals RBJ17-5 and RBJ17-3, then RBJ17-5 and RBJ17-4 (on the relay board).  e voltage reading for each should be 24 VDC.

Page 79

6.15

Testing for a K11 SSR that is Stuck Open

1. Ensure the oven mode dial is in the oﬀ position.

2. Pull the insulated wire terminals back, but not

oﬀ , to expose the terminal on all four brown wires of the relay.

3. Turn the oven mode dial to Bake to activate the

relay.

4. Apply the probes of the multi-meter across the

A1 and A2 terminals and B1 and B2 terminals individually. A 208/240 reading will show an open relay, 0 will show a closed relay.

Testing for a K12 SSR that is Stuck Open

1. Ensure the oven mode dial is in the oﬀ position.

2. Pull the insulated wire terminals back, but not

oﬀ , to expose the terminal on all four brown wires of the relay.

3. Turn the oven mode dial to Broil to activate the

relay.

Testing for a K13 Relay that is Stuck Open

1. Disconnect the two L2 blue wires from the K13 N.O. switch and the two L2 blue wires from the K13 common. Turn the oven mode dial to Bake to activate the K13 relay.

2. Apply the probes of the ohmmeter to the common and N.O. terminals of the K13 relay that are now exposed.  ey should register continuity. If they do not, verify the relay is receiving control voltage from the blue wires that are still attached to the relay in the upper left corner.

3. If control voltage is present, replace the relay and test the oven. If no voltage is present, investigate for broken wires.

4. If the K13 relay is receiving control voltage and is closing normally, L2 voltage is reaching the elements.  e K11 and K12 solid state relays will probably not both short in the open state, so test the control board for control voltage reaching the K11 and K12 SSR.

4. Apply the probes of the multi-meter across the

A1 and A2 terminals and B1 and B2 terminals individually. A 208/240 reading will show an open relay, 0 will show a closed relay.

TROUBLESHOOTING

Page 80

6.16 TROUBLESHOOTING

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left blank.

Page 81

Section 7 Oven Schematics

Page 82

Page 83

OVEN SCHEMATICS

7.1

1 uF

CLK

UTB

UCW

CKXF

1 uF

SIL

1 7 4

9 6

1 7

2 6

4 5

1 3

1 7 4

9 6

1 7

1 7 4

9 6

1 7

280°F

SW7

280°F

SW1

CLOCK ASSEMBLY

CT1

SAFETY INTERLOCK

SIR

OT 3

LOWER OVEN N.C. HI-LIMIT 280°F L280-35F

UPPER OVEN N.C. HI-LIMIT 270°F L250-35F

OT 2

4 5

1 3

RIGHT SIDE DOOR SWITCH/LOCK ASSEMBLY

STR

LEFT SIDE DOOR SWITCH/LOCK ASSEMBLY

FAN1

SAFETY INTERLOCK

COM

LOWER BLOWER

LINE FILTER

(Ref P/N RM34-0100)

(Ref P/N RM34-0102)

UPPER BLOWER

LINE

LOAD

LF1

VAC

J4 J5

470 Ohm

2 Watt

5 AMP

F3 FUSE

TO F3 FUSE

MAG THERMO SWITCH

PRTD3

PRTD2

TO CLOCK ASSEMBLY

USB1

SPEAKER

To Lower Oven Mode Knob

To Lower Oven Display

1 TO 1 RIBBON CABLE

To Upper CookWheel

USB RECEPTACLE

I/O CONTROL BOARD

Magnecraft 389CX-179-24VDC

PRTD4

P10

I/O BOARD CONNECTOR

I/O BOARD CONNECTORS

N.O THERMAL SWITCH

140 F

(Generation 1)

Switches depicted as “door open”

COOLING FAN

TO UPPER AND LOWER

COOLING FANS

TDO Upper Oven

Page 84

7.2 OVEN SCHEMATICS

FAN3

K10

HX3

K13

FAN2

SW9

LCW

HX4

COM

OT2

N.O. THERMAL SWITCH 160°F OPERATION

K11

DOOR LIGHT SWITCH

1 TO 1 RIBBON CABLE

USB1

TO CLOCK ASSEMBLY

USB RECEPTACLE

PRTD3

PRTD2

DOOR LATCH ASSEMBLY

LOWER COOK WHEEL

HX5

K12

HX6

LTB

TO FUSE F3

2700W

(Generation 1)

TDO Bottom Oven

Page 85

OVEN SCHEMATICS

7.3

1 uF

280° F

UTB

1 uF

UCW

280° F

SIL

P30

FAN1

CT1

SW7

SW1

SAFETY INTERLOCK

SIR

2 6

4 5

1 3

2 6

4 5

1 3

RIGHT SIDE DOOR SWITCH/LOCK ASSEMBLY

STR

LEFT SIDE DOOR SWITCH/LOCK ASSEMBLY

RELAY BOARD - REV D

SAFETY INTERLOCK

LOWER BLOWER

(Ref P/N RM34-0100)

(Ref P/N RM34-0102)

LINE

LOAD

LINE FILTER

LF1

VAC

J4 J5

UPPER BLOWER

COM

OT 3

P30

LOWER OVEN N.C. HI-LIMIT 280°F L280-35F

UPPER OVEN N.C. HI-LIMIT

270°F

L250-35F

OT 2

P30

PRTD4

N.O. COOLING FAN THERMOSTAT

140°F OPERATION

CLK

CLOCK ASSEMBLY

01- MANUAL RESET

SPEAKER

TO CLOCK ASSEMBLY

To Lower Oven Display

USB RECEPTACLE

To Upper Oven CookWheel

To Lower Oven Mode Knob

To Upper Oven Display

I/O CONTROL BOARD

(Generation 2)

RB J15-1,2

RB J15-3,4

COOLING FAN

J21-1

J21-2

RB F2 -15A

RB F1 -20A

N.C.

LEFT

RIGHT

Switches depicted as “door open”

“B”

“A”

AMP

TDO2 Upper Oven

Page 86

7.4 OVEN SCHEMATICS

LTB

FAN3

LCW

FAN2

K13

COM

LOWER COOK WHEEL

DOOR LATCH ASSEMBLY

HX3

HX5

HX4

K12

OT2

K11

HX6

SW9

PRTD3

PRTD2

DOOR LIGHT SWITCH

(Generation 2)

SPEAKER

TO CLOCK ASSEMBLY

To Lower Oven Display

USB RECEPTACLE

To Upper Oven CookWheel

To Lower Oven Mode Knob

To Upper Oven Display

I/O CONTROL BOARD

RB RB

N.O. COOLING FAN THERMOSTAT

160°F OPERATION

RELAY BOARD - REV D

TDO2 Bottom Oven

Page 87

OVEN SCHEMATICS

7.5

1 uF

280° F

UTB

1 uF

280° F

SIL

P30

CT1

SW7

SW1

SAFETY INTERLOCK

SIR

2 6

4 5

1 3

2 6

4 5

1 3

RIGHT SIDE DOOR SWITCH/LOCK ASSEMBLY

LEFT SIDE DOOR SWITCH/LOCK ASSEMBLY

SAFETY INTERLOCK

LOWER BLOWER

(Ref P/N RM34-0100)

(Ref P/N RM34-0102)

LINE

LOAD

LINE FILTER

LF1

VAC

J4 J5

UPPER BLOWER

COM

P30

OVEN HI-LIMIT

N.C.

L250-35F

OT 2

P30

PRTD4

STR

FAN1

CLK

CLOCK ASSEMBLY

01- MANUAL RESET

FAN2

(Single Wall Oven)

SPEAKER

TO CLOCK ASSEMBLY

To Lower Oven Display

USB

RECEPTACLE

To Upper Oven CookWheel

To Lower Oven Mode Knob

To Upper Oven Display

I/O CONTROL BOARD

RB J15-1,2

RB J15-3,4

J21-1

J21-2

RB F2 -15A

“B”

“A”

RB F1 - 20AMP

N.C.

LEFT

RIGHT

RELAY BOARD - REV D

270°F

N.O. COOLING FAN THERMOSTAT

140°F OPERATION

Switches depicted as “door open”

UPPER

LOWER

AMP

TSO Oven

EXHAUST

LOWER EXHAUST FAN SWITCH

Page 88

7.6 OVEN SCHEMATICS

SW1

RWD/RWS GEN 2 CONTROL BOARD Pin-out descriptions

REV. A 9_08

J16-1 Low cooling ow sw. +24VDC J16-2 Low cooling ow sw. status J16-3 Low cooling ow sw. return (-) J16-4 Low door lock status (+) J16-5 Low door lock status return (-) J16-6 Low door unlock status (+) J16-7 Low door unlock return (-) J16-8 RTD Lower (+) J16-9 RTD Lower (-) J16-10 RTD meat probe (+) J16-11 RTD meat probe (-) J16-12 Low front panel light switch (+) J16-13 Low front panel light switch (-) J16-14 Low door light switch (+) J16-15 Low door light switch (-) J16-16 Not Used

J15-13 Door lock L (+) J15-14 Door lock L return (-) J15-15 Up cooling ow sw. +24VDC J15-16 Up cooling ow sw. status J15-17 Up cooling ow sw. return (-) J15-18 Oven over temp (+) J15-19 Oven over temp return (-) J15-20 RTD Upper (+) J15-21 RTD Upper (-) J15-22 Up front panel light switch (+) J15-23 Up front panel light switch (-) J15-24 Not Used

J15-1 Blower Status Upper J15-2 Blower Status Lower J15-3 Not used J15-4 Not used J15-5 Monitor (+) J15-6 Monitor Return (-) J15-7 Primary (+) J15-8 Primary return (-) J15-9 Secondary (+) J15-10 Secondary return (-) J15-11 Door lock R (+) J15-12 Door lock R return (-)

J17-1 HX1 Heater J17-2 HX2 Heater J17-3 Convection Heater J17-4 Bake Heater J17-5 Broil Outer Heater J17-6 Broil Inner Heater J17-7 Pre heat Heater J17-8 Blower Upper J17-9 Blower Lower J17-10 PWM0 J17-11 PWM1 J17-12 Door Latch 1 J17-13 Door Latch 2 J17-14 Door Latch Lower J17-15 Convection Fan J17-16 Mag 1 J17-17 Mag 2 J17-18 Mag Fan J17-19 Stirrer Motor J17-20 Door Light J17-21 Door Light Lower J17-22 Cooling Fan J17-23 Cooling Fan Lower J17-24 Spare J17-25 Spare J17-26 Monitor Interlock

J9 Lower Oven Display J10 Upper Oven Display J11 Upper Oven Mode Control J12 Upper Oven Mode Control J14 Lower Oven Temp Control J13 Lower Oven Mode Control J20 Speaker J21 Clock assembly J23 USB connection T 1 Current transformer SW1 Master board reset

J1 - 1 +24VDC (input) J1 - 2 +24VDC (input) J1 - 3 Ground (input) J1 - 4 Ground (input)

Page 89

OVEN SCHEMATICS

7.7

Lower Door Light

Convection Fan

Lower Cooling Fan

Lower Door Lock

Upper Door Light

Stirrer Motor

Upper Cooling Fan

Mag Fan

Pre-Heater

Door Lock

15 AMP

20 AMP

Transformer

Monitor

12VAC

Transformer

Upper Right

Door Lock

Upper Left

RWD/RWS GEN 2 RELAY BOARD Pin-out descriptions

REV. B 9_08

Enable Inputs from I/O board

J21-1 HX1 Heater J21-2 HX2 Heater J21-3 Convection Heater J21-4 Bake Heater J21-5 Broil Outer Heater J21-6 Broil Inner Heater J21-7 Pre heat Heater J21-8 Blower Upper J21-9 Blower Lower J21-10 PWM0 J21-11 PWM1 J21-12 Door Latch 1 J21-13 Door Latch 2 J21-14 Door Latch Lower J21-15 Convection Fan J21-16 M ag 1 J21-17 M ag 2 J21-18 M ag Fan J21-19 Stirrer Motor J21-20 Door Light J21-21 Door Light Lower J21-22 Cooling Fan J21-23 Cooling Fan Lower J21-24 Spare J21-25 Spare J21-26 Monitor I nterlock

J22-1 HX1 Heater output J22-2 HX2 Heater output J22-3 Upper Blower enable J22-4 Lower Blower enable J22-5 PWM0 0-10VDC upper J22-6 PWM1 0-10VDC lower J22-7 +24V (output) J22-8 Ground J22-9 Cooling Fan CTL J22-10 Ground J22-11 Door Light output

J17-1 Convection Heater (output) J17-2 Bake Heater (output) J17-3 Broil Outer Heater (output) J17-4 Broil Inner Heater (output) J17-5 +24V (output) J17-6 Cooling Fan CTL (input from thermostats)

J20-3 Lower Cooling Fan (HV output) J20-2 Convection Fan (HV output) J20-1 Lower Door Lock (HV output)

J15-1 +24V (from PS) J15-2 +24V (from PS) J15-3 Ground (from PS) J15-4 Ground (from PS)

J18-1 12.6VAC (output to clock) J18-2 Common (output to clock)

J19-1 Mag Fan (HV output) J19-2 Door Lock Up R (HV output) J19-3 Door Lock Up L (HV output) J19-4 Stirrer Motor (HV output) J19-5 Cooling Fan Up (HV output)

J1 L1 Power (input to Mags RLY 2+3 thru F1) J2 L2 Power (input to Monitor RLY 1) J3 L2A Power (input to F2 fuse) J4 T1-1 Power (L1 output to HV transformer) J5 T2-2 Power (L1 output to HV transformer) J6 L2-B Power (output from F2 fuse) J7 L2 Power (input for Mag fan, Door locks 1+2, Upper cooling fan, Stirrer motor) J9 L2 Power (input for Lower door lock, Lower cooling fan, and Convection motor) J10 L1 Power input (from High Limit for Preheat) J11 L1 Power output to Preheat Heater

Page 90

7.8 OVEN SCHEMATICS

This page intentionally

left blank.

Page 91

Appendix Replacing Oven Components

Page 92

Page 93

Comprehensive Table of Oven Components

DANGER: Before removing or replacing any oven component, ensure the oven is removed from any power source (i.e., the breaker is turned oﬀ ). Failure to do so can result in serious injury or death.

WARNING: Before removing or replacing any oven component, thoroughly read the safety instructions found at the front of this manual and in Oven Systems (Section 5) and Troubleshooting (Section 6). Adhere to all precautions and warnings outlined in these sections, as failure to do so could result in serious injury or death.

CAUTION: Before removing/installing any component, make sure it is disconnected from the wire harness (where applicable).

Part Details... Locate the Part Here...

Item Part # Oven Page # Illustration #

Access Panel, EC, Lower RWD-9127 DWO Gen 1 & 2 A.22 A.17

Air Switch 102009 SWO A.8 A.2

Blade, Convection Fan 104169 DWO Gen 1 & 2 A.28 A.25

Blower Motor Controller 100446 All A.24 A.23

Blower Motor, Lower RWD-9042 All A.24 A.23

Blower Motor, Upper RWD-9040 All A.24 A.23

Blower, Dual 104164 All A.14, A.16 A.7, A.9

Blower, Exhaust 104190 SWO A.8 A.2

Bracket, Capacitor 104198 DWO Gen 1 A.14 A.7

Bracket, Control Assembly RWD-9367 All A.12 A.5

Bracket, Convection Fan RWD-9238 DWO Gen 1 & 2 A.28 A.25

Bracket, Display, Lower RWD-9142 DWO Gen 1 & 2 A.11 A.4

Bracket, Fuse and Terminal Block RWD-9391 DWO Gen 1 A.14 A.8

Bracket, Relay Attachment, Gen 1 RWD-9126 DWO Gen 1 A.22 A.17

Bracket, Relay Attachment, Gen 2 RWD-9126 DWO Gen 2 A.22 A.18

Cable, Display, L.V., DWO RWD-9427 DWO Gen 1 & 2 A.6 None

Cable, Display, Upper RWD-9438 All A.14, A.16 None

Cable, Interconnect, Relay Board RWD-9542 DWO Gen 2 & SWO A.16 None

Cable, Ribbon, 6” 104208 DWO Gen 1 A.6 None

Capacitor, H.V. 100213 All A.14, A.20 A.7, A.13, A.14

Catalytic Converter RWD-9066 All A.24 A.23

Clock Assembly RWD-9253 All A.12 A.5

Clock Ring Gasket RWD-9450 All A.12 A.5

Clock Transformer 104139 DWO Gen 1 A.18 A.10

Control Board, Gen 1 RWD-3003 DWO Gen 1 A.18 A.10

Control Board, Gen 2 RWD-3015 DWO Gen 2 & SWO A.18 A.11

Control Housing Assembly N/A All A.11 A.3, A.4

Control Housing, Upper RWD-9046 All A.12 A.5

Controls Assembly N/A DWO Gen 1 A.14 A.7

Controls Assembly, Gen 2 N/A DWO Gen 2 & SWO A.16 A.9

Convection Fan 104158 DWO Gen 1 & 2 A.28 A.25

Convection Fan Assembly N/A DWO Gen 1 & 2 A.28 A.24

A.1

APPENDIX  REPLACING OVEN COMPONENTS

Page 94

A.2 APPENDIX  REPLACING OVEN COMPONENTS

Part Details... Locate the Part Here...

Item Part # Oven Page # Illustration #

CookWheel Knob, Inner RWD-9378 All A.12 A.5

CookWheel Knob, Outer RWD-9377 All A.12 A.5

CookWheel Support Plate RWD-9455 All A.11, A.12 A.4, A.5

CookWheel Switch Assembly RWD-9256 All A.12 A.5

Cooling Fan, EC, Lower 104125 DWO Gen 1 & 2 A.22 A.17

Cooling Fan, EC, Upper 104114 All A.14, A.16 A.7, A.9

Cord, Power RWD-9412 All A.14, A.16 None

Cover, Back, DWO RWD-9184 DWO Gen 1 & 2 A.6 A.1

Cover, Back, SWO RWS-9018 SWO A.8 A.2

Cover, Bake Element RWD-9242 DWO Gen 1 & 2 A.28 A.24

Cover, Blower Motors RWD-9280 All A.24 A.23

Cover, Door Switch RWD-9359 All A.24 A.22

Cover, Hinge Pocket RWD-9472 All A.24 A.21

Cover, Hinge Pocket, Lower RWD-9149 DWO Gen 1 & 2 A.28 A.24

Cover, Meat Probe RWD-9128 DWO Gen 1 & 2 A.28 A.24

Cover, Motor End RWD-9282 All A.24 A.23

Cover, Rear, Lower Oven RWD-9225 DWO Gen 1 & 2 A.28 A.24

Cover, Waveguide RWD-9164 All A.24 A.21

De ector, Broiler RWD-9235 DWO Gen 1 & 2 A.28 A.24

Dial, Oven Mode RWD-9379 DWO Gen 1 & 2 A.11 A.4

Dial, Temperature RWD-9380 DWO Gen 1 & 2 A.11 A.4

Diode, H.V. 100481 All A.14, A.20 A.7, A.13, A.14

Display Assembly, Upper, TFT RWD-9294 All A.12 A.5

Display, Lower RWD-9295 DWO Gen 1 & 2 A.11 A.4

Diverter RWD-9283 All A.24 A.22

Diverter, Vent Outlet RWD-9584 DWO Gen 2 & SWO A.6, A.11 A.1, A.3

Door Receiver 104123 All A.24, A.28 A.22, A.24

Door Sensing Switch 104229 DWO Gen 1 & 2 A.6 A.1

Door Skin, Replacement RWD-3004-X All A.6, A.8 A.1, A.2

Door Switch, LHS RWD-9187 All A.24 A.21

Door Switch, RHS RWD-9186 All A.24 A.21

Door, Lower RWD-3021 DWO Gen 1 & 2 A.6 A.1

Door, Speedcook Oven RWD-3019-X All A.6, A.8 A.1, A.2

Door, Speedcook Oven, Inner RWD-3022 All A.6, A.8 A.1, A.2

Duct, Mag Cooling, LHS RWD-9374 All A.14, A.16 A.7, A.9

Duct, Mag Cooling, RHS RWD-9373 All A.14, A.16 A.7, A.9

Electrical Compartment, Lower, Gen 1 N/A DWO Gen 1 A.6 A.1

Electrical Compartment, Lower, Gen 2 N/A DWO Gen 2 A.6 A.1

Electrical Compartment, SWO N/A SWO A.8 A.2

Electrical Compartment, Upper, Gen 1 N/A DWO Gen 1 A.6 A.1

Electrical Compartment, Upper, Gen 2 N/A DWO Gen 1 A.6 A.1

Element, Bake, Concealed (208V) RWD-9464 DWO Gen 1 & 2 A.28 A.24

Element, Bake, Concealed (240V) RWD-9354 DWO Gen 1 & 2 A.28 A.24

Element, Broil (208V) RWD-9462 DWO Gen 1 & 2 A.28 A.24

Page 95

Part Details... Locate the Part Here...

Item Part # Oven Page # Illustration #

Element, Broil (240V) RWD-9351 DWO Gen 1 & 2 A.28 A.24

Element, Convection (208V) RWD-9463 DWO Gen 1 & 2 A.28 A.24

Element, Convection (240V) RWD-9353 DWO Gen 1 & 2 A.28 A.24

EMI Filter 104211 All A.14, A.16 A.7, A.9

Front Trim, DWO N/A DWO Gen 1 & 2 A.6 A.1

Front Trim, SWO N/A SWO A.8 A.2

Fuse Block 104183 DWO Gen 1 A.14 A.8

Fuse Holder 100579 DWO Gen 1 A.14 A.7

Fuse, 5 Amp 100635 DWO Gen 1 A.14 A.7

Fuse, 15 Amp, Gen 1 100601 DWO Gen 1 A.14 A.8

Fuse, 15 Amp, Gen 2 100602 DWO Gen 2 & SWO A.18 A.11

Fuse, 20 Amp, Gen 1 100599 DWO Gen 1 A.14 A.8

Fuse, 20 Amp, Gen 2 100603 DWO Gen 2 & SWO A.18 A.11

Handle, Lower Oven RWD-9224 DWO Gen 1 & 2 A.6 A.1

Handle, Speedcook Oven RWD-9011 All A.6, A.8 A.1, A.2

Harness, Clock, Gen 2 RWD-9543 DWO Gen 2 & SWO A.16 None

Harness, Failsafe, Microwave RWD-9555 DWO Gen 1 A.6 None

Harness, Fuse, Cooling Fan RWD-9553 DWO Gen 1 A.6 None

Harness, H.V., Lower Oven, Gen 2 RWD-9539 DWO Gen 2 A.22 None

Harness, L.V., Clock RWD-9437 DWO Gen 1 A.14 None

Harness, L.V., Lower Oven, Gen 2 RWD-9541 DWO Gen 2 A.22 None

Harness, L.V., Upper Oven, Gen 2 RWD-9540 DWO Gen 2 & SWO A.16 None

Harness, Lower Oven RWD-9408 DWO Gen 1 A.22 None

Harness, Power, Lower, DWO RWD-9429 DWO Gen 1 & 2 A.22 None

Harness, Power, Motor Controller RWD-9559 DWO Gen 2 & SWO A.16 None

Harness, Single RWS-9002 SWO A.8 None

Harness, Upper Oven RWD-9407 DWO Gen 1 A.14 None

Harness, Wire, Gen 2 RWD-9538 DWO Gen 2 & SWO A.16 None

Heater Cover Plate RWD-9156 All A.14, A.16 A.8, A.9

Heater, Upper Oven (208V) RWD-9394 All A.24 A.23

Heater, Upper Oven (240V) RWD-9065 All A.24 A.23

High Limit Switch 102075 All A.14, A.16, A.22 A.8, A.9, A.17

Hinge Pocket, Lower, LHS RWD-9119 DWO Gen 1 & 2 A.28 A.24

Hinge Pocket, Lower, RHS RWD-9118 DWO Gen 1 & 2 A.28 A.24

Hinge Pocket, LHS RWD-9098 All A.24 A.22

Hinge Pocket, RHS RWD-9097 All A.24 A.22

Jetplate, Lower RWD-9576 All A.24 A.22

Jetplate, Upper RWD-3017 All A.24 A.22

Lamp, Halogen, Lower Oven RWD-3016 DWO Gen 1 & 2 A.28 A.24

Lamp, Halogen, Upper Oven RWD-3014 All A.24 A.22

Latch Mechanism RWD-9366 All A.22 A.17

Light Switch 104141 All A.11, A.12 A.4, A.5

M.O.V. Filter RWD-9490 All A.14, A.21 A.8, A.16

Mag Air Diverter Assembly, Gen 1 N/A DWO Gen 1 A.14 A.8

A.3

APPENDIX  REPLACING OVEN COMPONENTS

Page 96

A.4 APPENDIX  REPLACING OVEN COMPONENTS

Part Details... Locate the Part Here...

Item Part # Oven Page # Illustration #

Mag Air Diverter Assembly, Gen 2 N/A DWO Gen 2 & SWO A.16 A.9

Magnetron 104154 All A.14, A.16 A.8, A.9

Microwave Stirrer Assembly RWD-9275 All A.24 A.21

Outer Frame, DWO RWD-3006 DWO Gen 1 & 2 A.11 A.4

Outer Frame, SWO RWS-9005 SWO A.11 A.3

Oven, Lower N/A DWO Gen 1 & 2 A.6 A.1

Oven, Speedcook, DWO, Gen 1 N/A DWO Gen 1 & 2 A.6 A.1

Oven, Speedcook, DWO, Gen 2 N/A DWO Gen 1 & 2 A.6 A.1

Oven, Speedcook, SWO N/A SWO A.8 A.2

Panel, Convection, Porcelain RWD-9575 DWO Gen 1 & 2 A.28 A.24

Plate, Convection Fan RWD-9237 DWO Gen 1 & 2 A.28 A.25

Power Supply (12VDC) 104128 All A.18 A.12

Power Supply (24VDC) 104166 All A.18 A.12

Power Supply Assembly N/A All A.18 A.10, A.11

Power Supply Mounting Plate RWD-9262 All A.18 A.12

Rack RWD-9167 All A.24 A.22

Rack Guide RWD-9385 DWO Gen 1 & 2 A.28 A.24

Rack, Lower Oven RWD-9384 DWO Gen 1 & 2 A.28 A.24

Rack, Roller, Lower Oven RWD-9383 DWO Gen 1 & 2 A.28 A.24

Receptacle, Meat Probe 104159 DWO Gen 1 & 2 A.28 A.24

Relay Assembly N/A DWO Gen 1 A.14 A.7

Relay Board RWD-9545-FRU DWO Gen 2 & SWO A.18 A.11

Relay, K1 101281 All A.21 A.15, A.16

Relay, K2 101273 DWO Gen 1 A.21 A.15

Relay, K3 101273 DWO Gen 1 A.21 A.15

Relay, K4 101273 DWO Gen 1 A.21 A.15

Relay, K5 101273 DWO Gen 1 A.21 A.15

Relay, K6 101273 DWO Gen 1 A.21 A.15

Relay, K7 101273 DWO Gen 1 A.21 A.15

Relay, K8 101273 DWO Gen 1 A.21 A.15

Relay, K9 104179 All A.20, A.21 A.13, A.16

Relay, K10 104202 DWO Gen 1 A.22 A.19

Relay, K11 101281 DWO Gen 1 & 2 A.22 A.19, A.20

Relay, K12 101281 DWO Gen 1 & 2 A.22 A.19, A.20

Relay, K13 104179 DWO Gen 1 & 2 A.22 A.19, A.20

Relay/Power Assembly N/A DWO Gen 2 & SWO A.16 A.9

RTD RWD-9364 All A.24, A.28 A.21, A.24

SD Card, Gen 1 RWD-9500 DWO Gen 1 A.18 A.10

SD Card, Gen 2 RWD-9562 DWO Gen 2 & SWO A.18 A.11

Separator, Convection Fan RWD-9223 DWO Gen 1 & 2 A.28 A.24

Snubber, Electrical RWD-9497 All A.14, A.16, A.22, A.28 A.7, A.9, A.17, A.25

Speaker 104214 All A.12, A.18 A.6, A.10

Stand-O , Broil Element RWD-9215 DWO Gen 1 & 2 A.28 A.24

Stand-O , Rear, Lower RWD-9130 DWO Gen 1 & 2 A.28 A.24

Page 97

Part Details... Locate the Part Here...

Item Part # Oven Page # Illustration #

Stirrer Motor, Gear 104174 All A.14, A.16 A.7, A.9

Stirrer Motor, Hub 104175 All A.14, A.16 A.7, A.9

Stirrer Shaft RWD-9070 All A.24 A.21

Stirrer, Coupling Hub 104133 All A.24 A.21

Stirrer, Coupling Spider Insert 104134 All A.24 A.21

Stirrer, Shaft Support RWD-9077 All A.24 A.21

Stirrer, Stud Plate RWD-9072 All A.24 A.21

Support, Rack, LHS RWD-9165 All A.24 A.22

Support, Rack, RHS RWD-9166 All A.24 A.22

Switch Assembly, Mode RWD-9257 DWO Gen 1 & 2 A.11 A.4

Switch Assembly, Temperature RWD-9258 DWO Gen 1 & 2 A.11 A.4

Terminal Block 104145 All A.14, A.21, A.22 A.8, A.16, A.17, A.18

Thermostat, 140F, Close on Rise 102087 All A.20 A.13, A.14

Thermostat, 160F, Close on Rise 104236 DWO Gen 1 & 2 A.22 A.17

Thermostat, 270F, Open on Rise 104228 All A.8, A.24 A.2, A.23

Thermostat, 280F, Open on Rise 104167 All A.14, A.17, A.22 A.7, A.17, A.9

Top Cover, Front RWD-9356 All A.6, A.8 A.1, A.2

Top Cover, Rear RWD-9355 All A.6, A.8 A.1, A.2

Transformer, H.V. 104137 All A.14, A.17 A.8, A.9

USB Port, Gen 1 RWD-9453 DWO Gen 1 A.6 A.1

USB Port, Gen 2 103193 DWO Gen 2 & SWO A.6, A.8 A.1, A.2

Wire, Canada, Black RWD-9531 DWO Gen 1 A.22 None

Wire, Canada, Orange RWD-9530 DWO Gen 1 A.22 None

Wire, Canada, Short RWD-9529 DWO Gen 1 A.22 None

Wire, H.V., Capacitor/Diode RWD-9435 All A.14, A.17 None

Wire, H.V., Capacitor Magnetron RWD-9434 DWO Gen 1 A.14 None

Wire, H.V., Capacitor/Transformer RWD-9433 All A.14, A.17 None

Wire, H.V., Ground, Diode RWD-9436 All A.14, A.17 None

Wire, L.V., P7, P8, & P10, Conn., Upper Oven RWD-9431 DWO Gen 1 A.14 None

Wire, L.V., P9 Conn., DWO RWD-9430 DWO Gen 1 A.22 None

Wire, Light Jumper, Lower Switch RWD-9489 DWO Gen 1 & 2 A.6 None

Wire, Switch, Lower RWD-9428 DWO Gen 2 A.22 None

Wire, Switch, Lower, Gen 1 RWD-9596 DWO Gen 1 A.6 None

Wire, Switch, Upper, Gen 1 RWD-9597 DWO Gen 1 A.14 None

Wire, Upper Switch RWD-9432 DWO Gen 2 & SWO A.17 None

A.5

APPENDIX  REPLACING OVEN COMPONENTS

Page 98

A.6 APPENDIX  REPLACING OVEN COMPONENTS

Component and Assembly Location, DWO Gen 1 and Gen 2

DANGER: Before removing or replacing any oven component, ensure the oven is removed from any power source (i.e., the breaker is turned oﬀ ). Failure to do so can result in serious injury or death.

CAUTION: Before removing/installing any component, make sure it is disconnected from the wire harness (where applicable).

Removing the Oven

In order to remove the oven from the wall, the two mounting screws (P/N: 104184), located on the inside of the Speedcook oven’s outer trim, must be removed (additionally, some older DWO oven models have 2 cabinet screws in the lower oven’s outer trim).  e oven may be safely pulled away from the wall approximately 11” (280 mm) to remove the front top cover, lower EC access panel, and the door switch covers. Any further removal requires the oven to be fully removed from the wall and placed upon a cart capable of supporting approximately 410 lbs (186 kg).

Item Description Item Part # Hardware Description Hardware Part Number(s)

Cable, Display, L.V., DWO RWD-9427 None None

Cable, Ribbon, 6” 104208 None None

Cover, Back, DWO RWD-9184 Screw, SH MTL, #8 x 1/2 Serrated PHTRH 101688 (x19)

Diverter, Vent Outlet RWD-9584 None None

Door Sensing Switch 104229 Screw, SH MTL, #8 x 1/2 Serrated PHTRH 101688 (x3)

Door Skin, Replacement RWD-3004-X None None

Door, Lower RWD-3021 None None

Door, Speedcook Oven RWD-3019-X

Door, Speedcook Oven, Inner RWD-3022 None None

Electrical Compartment, Lower, Gen 1 (see pages A.22-A.23)

Electrical Compartment, Lower, Gen 2 (see pages A.22-A.23)

Electrical Compartment, Upper, Gen 1 (see pages A.13-A.15)

Electrical Compartment, Upper, Gen 2 (see pages A.16-A.17)

Front Trim, DWO (see pages A.10-A.11)

Handle, Lower Oven RWD-9224 Bolt, Handle, Lower Oven RWD-9457 (x2)

Handle, Speedcook Oven RWD-9011 Bolt, Handle, Speedcook Oven RWD-9458 (x2)

Harness, Failsafe, Microwave RWD-9555 None None

Harness, Fuse, Cooling Fan RWD-9553 None None

Oven, Lower (see pages A.28-A.29)

N/A None None

N/A

N/A None None

Screw, SH MTL, #8 x 1/2 Serrated PHTRH Cover, Hinge Pocket Screw, #8-32 x 3/8, PPH, THD-Forming, PLT

Screw, #8 x 3/8 PH MOD TRUSS CRES Screw, SH MTL, #8 x 1/2 Serrated PHTRH Screw, #8 x 2.00 PH MOD TRUSS SS

101688 (x4) RWD-9472 (x2) 104227 (x2)

101682 (x16) 101688 (x4) 104184 (x2)

Page 99

Item Description Item Part # Hardware Description Hardware Part Number(s)

A.7

Oven, Speedcook, DWO, Gen 1 (see pages -A.25)

Oven, Speedcook, DWO, Gen 2 (see pages -A.25)

Top Cover, Front RWD-9356 Screw, SH MTL, #8 x 1/2 Serrated PHTRH 101688 (x7)

Top Cover, Rear RWD-9355 Screw, SH MTL, #8 x 1/2 Serrated PHTRH 101688 (x11)

USB Port, Gen 1 RWD-9453 Screw, 6-32 x .38, PFH, 100DEG, SS 101430 (x2)

USB Port, Gen 2 103193

Wire, Light Jumper, Lower Switch

Wire, Switch, Lower, Gen 1 RWD-9596 None None

Top Cover, Front

USB Port, Gen 1 / Gen 2

N/A None None

Screw, SH MTL, #8 x 1/2 Serrated PHTRH Bracket, USB, Strap

RWD-9489 None None

Top Cover, Rear

Electrical Compartment, Upper, Gen 1 / Gen 2

101688 (x2) RWS-9026

Oven, Speedcook, DWO, Gen 1 / Gen 2

Handle, Speedcook Oven

Door, Speedcook Oven, Inner

Front Trim, DWO

Door, Speedcook oven

Door Skin, Replacement

Handle, Lower Oven

Door, Lower

Cover, Back, DWO

Electrical Compartment, Lower, Gen 1 / Gen 2

Door Sensing Switch

Oven, Lower

APPENDIX  REPLACING OVEN COMPONENTS

Figure A.1: Component and Assembly Location, DWO Gen 1 and Gen 2

Diverter, Vent Outlet

Page 100

A.8 APPENDIX  REPLACING OVEN COMPONENTS

Component and Assembly Location, SWO

DANGER: Before removing or replacing any oven component, ensure the oven is removed from any power source (i.e., the breaker is turned oﬀ ). Failure to do so can result in serious injury or death.

CAUTION: Before removing/installing any component, make sure it is disconnected from the wire harness (where applicable).

Removing the Oven

In order to remove the oven from the wall, the two mounting screws (P/N: 104184), located on the inside of the Speedcook oven’s outer trim, must be removed.  e oven may be safely pulled away from the wall approximately 11” (280 mm) to remove the front top cover, lower EC access panel, and the door switch covers. Any further removal requires the oven to be fully removed from the wall and placed upon a cart capable of supporting approximately 230 lbs. (105 kg.).

Item Description Item Part # Hardware Description Hardware Part Number(s)

Air Switch 102009 Screw, 4-40 x 5/8, PPH, SS 101550 (x2)

Blower, Exhaust 104190 Screw, SH MTL, #8 x 1/2 Serrated PHTRH 101688 (x2)

Cover, Back, SWO RWS-9018 Screw, SH MTL, #8 x 1/2 Serrated PHTRH 101688 (x11)

Door Skin, Replacement RWD-3004-X None None

Door, Speedcook Oven RWD-3019-X

Door, Speedcook Oven, Inner RWD-3022 None None

Electrical Compartment, SWO (see pages A.16-A.17)

Front Trim, SWO (see pages A.10-A.11)

Handle, Speedcook Oven RWD-9011 Bolt, Handle, Speedcook Oven RWD-9458 (x2)

Harness, Single RWS-9002 None None

Oven, Speedcook, SWO (see pages -A.25)

Thermostat, 270F, Open on Rise 104228 Screw, #6 x 1/2, PPHD, DRL-PT, SS 101687 (x2)

Top Cover, Front RWD-9356 Screw, SH MTL, #8 x 1/2 Serrated PHTRH 101688 (x7)

Top Cover, Rear RWD-9355 Screw, SH MTL, #8 x 1/2 Serrated PHTRH 101688 (x11)

USB Port, Gen 2 103193

N/A None None

N/A

N/A None None

Screw, SH MTL, #8 x 1/2 Serrated PHTRH Cover, Hinge Pocket Screw, #8-32 x 3/8, PPH, THD-Forming, PLT

Screw, #8 x 3/8 PH MOD TRUSS CRES Screw, SH MTL, #8 x 1/2 Serrated PHTRH Screw, #8 x 2.00 PH MOD TRUSS SS

Screw, SH MTL, #8 x 1/2 Serrated PHTRH Bracket, USB, Strap

101688 (x4) RWD-9472 (x2) 104227 (x2)

101682 (x16) 101688 (x4) 104184 (x2)

101688 (x2) RWS-9026

TurboChef Residential Single and Double Wall Oven, TDO30, DWO Gen 1, DWO, SWO Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual