TURBOCHEF T E C H N O LOGIES, I NC .
HHB2 Rev B Service Manual Changes
August 2010
Changed all “press and hold” key strokes to 2 seconds
Updated F7 troubleshooting
Updated “Cook Door Open When Door is Closed” troubleshooting
Updated “Food Not Cooking Properly” troubleshooting
Where applicable, updated drawings to match DOC-1267 parts catalog
Where applicable, updated part numbers and descriptions to match DOC-1267 parts catalog
Added hinge detail drawings
Added miscellaneous components drawing (covers, legs)
© 2010 TurboChef Technologies, Inc.
TM
Service Manual
h TM
©2009–2010 TurboChef Technologies, Inc.
For further information call:
Customer Service at 800.90
Sales & Marketing at 866.90
TM
The information contained in this manual is important for the proper installation, use, maintenance,
and repair of this oven. Follow these procedures and instructions to ensure satisfactory baking results and
years of trouble-free service.
Errors – descriptive, typographic, or pictorial – are subject to correction. Specifications are subject to
change without notice.
PLEASE CAREFULLY READ THIS MANUAL AND RETAIN IT FOR FUTURE REFERENCE.
Table of Contents
Safety Instructions
General Safety Information i
Reducing Fire Risk i
Preventing Oven Damage ii
Grounding Instructions ii
Power Cord Replacement ii
Specifications and Installation
Theory of Operation 1
Certifications 1
Dimensions 1
Construction 2
Exterior 2
Interior 2
Electrical Specifications 2
United States 2
Canada 2
Latin America 2
Europe/Asia/Pacific 2
United Kingdom/Ireland 2
Standard Features 3
Performance 3
Installation 3
Packaging 3
Damaged Shipment Claims 3
Lifting and Placing the Oven 3
Securing Oven to Cart 4
Double Stacking Ovens 4
Built-In Installation 4
Installation Near Open Heat Source 6
Setup 6
Ventilation Requirements 6
Optional Installation Items 7
Oven Restraint Kit 7
Oven Cart 7
Replacing/Exchanging Jetplates 8
Oven Maintenance
Daily Cleaning 9
Deep Cleaning 10
Operating the Oven
Control Display and Key Identification 13
Cooking Instructions 14
Additional Cooking Options 15
Time Screen 15
Done Screen 15
Options Menu 15
Enabling/Disabling the Edit Menu 16
Erasing the Recipe Menu 16
Enabling/Disabling the Write Card Function 17
Enabling/Disabling the Time Screen 17
Enabling/Disabling the Done Screen 18
Demonstration Mode 18
Programming Recipes 19
Adjusting the Cook Cavity Temperature 19
Modifying Recipes 19
Ordering a Smart Card 21
Loading Menu from Smart Card 21
Saving Menu to Smart Card 21
Checking Recipe Counter 21
Diagnosing an Issue
Fault Codes: Descriptions, Clearing Instructions, and Troubleshooting 23
F1: BLOWER (Blower Running Status Bad) 23
F2: LOW TEMP (Cook Temperature Low) 23
F6: EC TEMP (Electrical Compartment Temperature High) 24
F7: THERMO (Thermocouple Open) 24
F8: HEAT LOW 24
Status Indicators 25
Door 25
Heater A 25
Heater B 25
Blower 25
Testing Options 25
Diagnosing Door Switch Operation 26
Testing the Blower Motor 26
Viewing/Clearing the Fault Log 26
Adjusting the Temperature Offset 26
Checking Heaters A and B 26
Testing the Rack Oscillator Motor 26
Enabling/Disabling Diagnostic Mode 26
Viewing Cook Counter/Time 26
Viewing the Cumulative Operating Time 27
Viewing the Electrical Compartment Temperature 27
Setting Fahrenheit/Celsius 27
Viewing/Editing the Serial Number 27
Fault Code Troubleshooting 28
F1: BLOWER (Blower Running Status Bad) 28
F2: LOW TEMP (Cook Temperature Low) 29
F6: EC TEMP (Electrical Compartment Temperature High) 30
F7: THERMO (Thermocouple Open) 30
F8: HEAT LOW 31
Non-Fault Code Troubleshooting 32
No Keypad Input 32
“Cook Door Open” Message when Door is Closed 32
No Display – Screen is Blank 33
Food Not Cooking Properly 34
“Read Fail” Message When Loading Menu 35
“Write Fail” Message When Loading Menu 35
The Control System
Components 37
Control Board 37
Cooling Fans 37
Display 37
EMI Filter 37
Fuses 37
Keypad 37
Power Cord 37
Power Supply 37
Relay - Rack Oscillation Motor 37
Smart Card Reader 37
Solid State Relay (SSR) 38
Thermocouple – Cook Cavity 38
Thermocouple – Electrical Compartment (EC) 38
Thermostat – Cooling Fan 38
Thermostat – High-Limit 38
Voltage Sensor 38
Wire Harness 38
The Convection System
Components 41
Blower Motor 41
Blower Motor Speed Controller 41
Heaters 41
Jetplates 41
Jetplate Support Rails 41
Oven Rack 41
Rack Oscillation Motor 41
Swing Arm Assembly 41
Convection System Troubleshooting 41
The Oven Door
Components 45
Door Gasket 45
Door Handle 45
Door Hinges 45
Door Skin 45
Door Interlock Switch 45
Removing/Reinstalling the Oven Door 45
The Filtering System/Miscellaneous Components
Filtering System Components 47
Grease Filter 47
Grease Filter Frame 47
Catalytic Converter 47
Miscellaneous Components 48
Schematics
High h Batch 2 Schematic 49
Control Board and Test Point Locations 52
IMPORTANT SAFETY INSTRUCTIONS
WARNING: When operating this oven, strictly adhere to all safety precautions below, on page ii, and
throughout this manual to reduce the risk of burns, electric shock, fire, injury, oven damage, or property
damage. Improper installation, adjustment, alteration, service, or maintenance of this equipment can cause
property damage, injury, or death. Thoroughly read the installation, operating, and maintenance instructions
before installing or servicing this equipment.
General Safety Information
£
Use this appliance only for its intended uses as described in this manual.
£
Only qualified service personnel should service this appliance. Contact the nearest authorized service
facility for examination, repair, or adjustment.
£
Always ensure the oven is disconnected from the power supply before servicing, repairing, or adjusting
any components or parts.
£
This appliance must be grounded. Connect only to properly grounded outlet. See “Grounding
Instructions” found on page ii.
£
Install or locate this appliance only in accordance with the provided installation instructions.
T
DO NOT place the cord near heated surfaces.
T
DO NOT store or use flammable vapors or liquids (e.g., gasoline) in the vicinity of this appliance.
T
DO NOT allow children to use this appliance.
T
DO NOT place corrosive chemicals or vapors in this appliance. It is not designed for industrial or
laboratory use.
T
DO NOT operate this appliance if it
- Has a damaged cord or plug
- Is not working properly
- Has been damaged or dropped
T
DO NOT cover or block any openings on this appliance.
T
DO NOT store this appliance outdoors.
T
DO NOT use this appliance near water.
T
DO NOT immerse this appliance or any of its components (e.g., cord, plug, etc.) in water.
T
DO NOT let the cord hang over the edge of a table or counter.
T
This appliance is not to be used by children or persons with reduced physical, sensory or mental
capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction.
i
Reducing Fire Risk
If materials inside the oven ignite or if smoke is observed:
1. Keep the oven door closed.
2. Turn off the oven.
3. Disconnect the power cord or shut off power at the fuse/circuit breaker panel.
£
Carefully monitor the oven if paper, plastic, or other combustible materials are placed inside
to facilitate cooking.
T
DO NOT leave items in the cook cavity when the oven is not in use.
T
DO NOT cook items wrapped in cling wrap or plastic film.
T
DO NOT overcook food.
SAFETY INSTRUCTIONS
ii SAFETY INSTRUCTIONS
Preventing Oven Damage
£
Clean the oven daily (page 9). Failure to do so will adversely affect cooking performance and shorten
the life of the oven.
£
Once per month or more frequently depending on use, perform the deep cleaning procedure (pages
10-11). Failure to do so will adversely affect cooking performance and shorten the life of the oven.
£
Clean the oven only with TurboChef Oven Cleaner.
£
Operate the oven only when food is in the cook chamber.
T
DO NOT clean with a water jet.
T
DO NOT slam or mishandle the oven door.
T
DO NOT frequently open and close the door to check the cook status of the food.
T
DO NOT allow cleaning solution or water to remain in the cook chamber after cleaning or at
any other time.
£
When servicing this appliance, do not tear insulation to get to components. Rather, find the edge of
the insulation and remove the tape that holds it in place.
Grounding Instructions
WARNING: Improper grounding increases the risk of electric shock.
This appliance must be grounded. It is equipped with a cord that has a grounding wire and plug, which
in the event of an electrical short circuit reduces the risk of electric shock by providing an escape wire
for the electric current. The wire must be plugged into an outlet that is properly installed and grounded.
Consult a qualified electrician or serviceman for more information on grounding instructions or to
determine if the appliance is properly grounded.
T
DO NOT use an extension cord. If the power supply cord is too short, ask a qualified electrician or
serviceman to install an outlet near the appliance.
Power Cord Replacement
To avoid potential hazards, only the manufacturer, an authorized service agent, or a similarly-qualified
person should replace a damaged power cord.
Specifications and Installation
31.7 in. (805 mm)
29.2 in. (742 mm)
25.9 in. (658 mm)
21.4 in. (544 mm)
38.8 in. (986 mm)
17.4 in. (442 mm)
10 in.
(254 mm)
1
Theory of Operation
The TurboChef® High h Batch 2TM oven generates
high heat transfer rates to rapidly cook food by
recirculating impinged air at speeds of up to 60
mph. The technology includes utilizing a variable
speed blower, oscillating rack, and catalytic
converter, resulting in minimal energy input, high
food quality, and UL
®-certified ventless operation.
Certifications
UL, cUL, NSF, TÜV, CE
UL 710B (KNLZ) listed for ventless operation. See
page 6 for details and limitations.
Dimensions
Single Units
Height 17.4” (442 mm)
with legs* 21.4” (544 mm)
without legs 17.4” (442 mm)
Width 25.9” (658 mm)
Depth 29.2” (742 mm)
with handle 31.7” (805 mm)
Weight 157 lb. (71 kg)
Double Units (Requires a Stacking Kit)
Height
top w/ legs 42.8” (1087 mm)
top w/out legs 38.8” (986 mm)
Width 25.9” (658 mm)
Depth 29.2” (742 mm)
with handle 31.7” (805 mm)
Weight 314 lb. (142 kg)
* Legs are 4” (102 mm)
Cook Cavity
Height 8” (203 mm)
Width 18.75” (476 mm)
Depth 16.75” (425 mm)
Volume 1.45 cu. ft. (41.1 liters)
Figure 1: High h Batch 2 Dimensions
Wall Clearance
Top 2” (51 mm)
Sides 2” (51 mm)
SPECIFICATIONS AND INSTALLATION
2 SPECIFICATIONS AND INSTALLATION
Construction
Exterior
£
Stainless steel front, top, back, and powder-
coated sides
£
4” (102 mm) matte black legs
£
Ergonomic, cool to touch powder-coated door
handle
Interior
£
304 stainless steel interior
£
Water-tight construction
£
Interchangeable jetplates for customized
cooking results
Electrical Specifications
United States
£
HHB2 (P/N: HHB-8603-1)
Phase 1
Voltage* 208/240 VAC
Frequency 50/60 Hz
Current 24 amps
Max Circuit 30 amps
Max Input 5000 watts
Cord 10 gauge, 3 wire, 6 foot, SOOW
Plug NEMA 6-30P
Canada
£
HHB2C (P/N: HHB-8603-1C)
Phase 1
Voltage* 208/240 VAC
Frequency 50/60 Hz
Current 24 amps
Max Circuit 50 amps
Max Input 5000 watts
Cord 10 gauge, 3 wire, 6 foot, SOOW
Plug NEMA 6-50P
* Smart Voltage Sensor Technology automatically
senses the supply voltage and prompts the operator to configure the oven to the correct setting
(208 or 240). However, it does not compensate
for lack-of or over-voltage situations.
Latin America
£
HHB2LA (P/N: HHB-8603-1K-2073)
Phase 1
Voltage 230 VAC
Frequency 50/60 Hz
Current 24 amps
Max Circuit 32 amps
Max Input 5000 watts
Cord 10 gauge, 3 wire, 5 foot, SOOW
Plug NEMA 6-30P
Europe/Asia/Pacific
£
HHB2EW (P/N: HHB-8603-1W)
Phase 3
Voltage 400 VAC
Frequency 50/60 Hz
Current 10 amps
Max Circuit 16 amps
Max Input 5000 watts
Cord HO7RN-F, 5 wire
Plug IEC 309, 5-pin, 16 amp
£
HHB2ED (P/N: HHB-8603-1D)
Phase 3
Voltage 230 VAC
Frequency 50/60 Hz
Current 14 amps
Max Circuit 20 amps
Max Input 5000 watts
Cord HO7RN-F, 4 wire
Plug IEC 309, 4-pin, 32 amp
United Kingdom/Ireland
£
HHB2UK (P/N: HHB-8603-1K)
Phase 1
Voltage 230 VAC
Frequency 50/60 Hz
Current 24 amps
Max Circuit 32 amps
Max Input 5000 watts
Cord HO7RN-F, 3 wire
Plug IEC 309, 3-pin, 32 amp
NOTE: The owner is responsible for supplying
voltage that meets the above specifications. For
more information, consult a qualified electrician.
3
Standard Features
Integral recirculating catalytic converter for UL
£
listed ventless operation (UL KNLZ)
Top and bottom jetplates removable for
£
cleaning
Variable-speed High h recirculating
£
impingement airflow system
Oscillating rack for high heat transfer without
£
spotting
Half-sheet pan/16-inch pizza capacity
£
Smart Voltage Sensor Technology* (U.S. only)
£
Stackable design (requires stacking kit)
£
Smart menu system capable of storing up to 72
£
recipes
Built-in self diagnostics for monitoring oven
£
components and performance
Includes plug and cord (5 ft.)
£
Warranty - 1 year parts and labor
£
Performance
£
Heat transfer rates (h) are 3X–4X typical
convection oven
£
Heat transfer rates (h) are 2X typical
conveyor oven
Installation
Install or locate this appliance only in accordance
with the instructions provided below and on pages
4-8. In no event shall the manufacturer assume
any liability for damages or injuries resulting from
installations which are not in compliance with these
instructions and the safety instructions listed on
pages i and ii.
Damaged Shipment Claims
Upon delivery, remove the oven from its packaging
and immediately note any damage. To file a claim,
contact the shipping company within 24 hours of
receiving the shipment. TurboChef is not responsible if a product is damaged during shipment.
Lifting and Placing the Oven
WARNING: Oven weight is approximately
157 lb. (71 kg). Two or more persons are
required to lift it.
WARNING: To prevent personal injury or
damage to the oven, DO NOT lift the oven
from the front and rear or by the handle.
WARNING: Ensure the oven is properly
placed on the table or countertop at all times.
TurboChef will not recognize a fallen oven as a
warrantable claim and is not liable for any
injuries that may result.
When lifting and placing the oven:
1. Position one or more persons on the left and
right sides of the oven.
2. Lift from the bottom of the oven.
3. Place the oven on surface at least 30” (762 mm)
deep and capable of supporting 167 lb. (76 kg).
SPECIFICATIONS AND INSTALLATION
Packaging
All ovens are packaged in a double-wall corrugated
box with integrated skids. If the oven may possibly
be shipped from its original place of installation
for any reason, TurboChef recommends retaining
the packaging in good condition.
4 SPECIFICATIONS AND INSTALLATION
1: Must be included by contractor
4.0" (102 mm)
300 CFM (8.5 CMM)
Discharge to Ambient
Fan
2.0" (51mm)
Unobstructed
Airflow
Unobstructed
Airflow
Notes:
2.0" (51mm)
2.0" (51mm)
2.0" (51mm)
1: Must be included by contractor
4.0" (102 mm)
300 CFM (8.5 CMM)
Discharge to Ambient
Fan
2.0" (51mm)
Unobstructed
Airflow
Unobstructed
Airflow
Notes:
Securing Oven to Cart
Reference Figure 3, adjacent.
1. Lock the oven cart wheels.
2. Place the oven on the cart.
WARNING: Do not attempt to lift the oven
with fewer than 2 people.
WARNING: When lifting the oven, position
at least one person on each side. Do not lift
the oven from the front and back, and do not
use the handle to lift the oven.
WARNING: Do not transport ovens on cart
when stacked.
4. Attach one oven cart bracket to each leg
(kit HHB-8206 includes four brackets).
5. Secure each leg by aligning the bracket with the
holes on the oven cart and attaching the parts
listed in Figure 3.
Double Stacking Ovens
1. Ensure the surface that will hold the stacked
ovens can support the weight (314 lb./142 kg).
2. Allow each oven time to cool and then unplug.
3. If stacking ovens on an oven cart, make sure
the bottom oven is bolted to the cart and the
wheels are locked (Figure 3).
4. Attach the stacking bracket to the back of the
bottom oven using the existing oven screws as
shown in Figure 4.
5. Remove the screws from the top oven, as
shown in Figure 4.
6. If desired, remove the legs from the top oven.
NOTE: Ovens can be stacked either with legs
attached or removed from the top oven.
7. Place the top oven on the bottom oven.
WARNING: Do not attempt to lift the oven
with fewer than two people.
WARNING: When lifting the oven, position
at least one person on each side. Do not lift
the oven from the front and back, and do not
use the handle to lift the oven.
8. Align the holes on the stacking bracket with the
holes on the top oven and reinstall the screws.
WARNING: Do not stack ovens more than
two-high.
Built-In Installation
TurboChef ovens are designed to be installed on
a countertop or table. They are not intended for
built-in or enclosed installation.
“Built-in or enclosed installation” is defined as
installing an oven in any structure that surrounds
the oven by five sides (top/rear/base/side panels).
If installation must be “built in,” the operator
must ensure the following (see Figure 2):
o
At least 300 cfm (8.5 cmm) of supplement flow
within the cabinet.
o
At least 2” (51 mm) clearance to every surface.
The operator will be responsible for compensating
any extra time required to service the product due
to removing the product for serviceability.
Figure 2: Built-in Installation
Bolt
Flat Washer
Bracket
Flat Washer
Split-Lock Washer
Nut
Figure 3: HhB 2 Oven Secured to TurboChef Oven Cart
5
Figure 4: Stacked HhB 2 Ovens (Two Configurations)
SPECIFICATIONS AND INSTALLATION
SPECIFICATIONS AND INSTALLATION
PA RTITION
21.4” (544 mm)
ABOVE COUNTER TOP
PA RTITION
21.4” (544 mm)
ABOVE COUNTER TOP
12”
(305 mm)
MINIMUM
6”
(152 mm)
MINIMUM
COUNTER TOP / TABLE
GRILL
TURBOCHEF
OVEN
DEEP FRYER
6
Figure 5: Installation Near Open Heat Source
Installation Near Open Heat Source
When placing a TurboChef oven near an open
heat source, strictly adhere to the following
(Figure 5):
£
Verify oven location has a minimum 6” (152
mm) clearance on top and minimum 2” (51
mm) of clearance on each side.
£
If the oven is being placed near a grill or stove,
there must be a divider between the oven and
the open heat source, with a minimum of 6”
(152 mm) between the oven and the divider.
£
If the oven is being placed near a fryer, there
must be a divider between the oven and fryer,
with a minimum of 12” (305 mm) between the
oven and the divider.
£
The height of the divider must be greater than
or equal to the height of the oven (21.4”/544
mm).
Setup
Once the oven is properly positioned on the
counter:
1. Remove packing material from the cook cavity.
2. Install the oven rack by placing it over the
support pins.
3. Plug the oven into a wall-mounted electrical
receptacle. (See Electrical Specifications, page 2.)
4. The oven has been preprogrammed with factory
settings and is ready to operate out of the box.
Ventilation Requirements
The TurboChef model HhB/HhB 2 oven has been
approved by Underwriter’s Laboratory for ventless
operation (UL 710B, KNLZ listing) for all food
items except for foods classified as “fatty raw proteins.” Such foods include bone-in, skin-on chicken, raw hamburger meat, raw bacon, raw sausage,
steaks, etc. If cooking these types of foods, consult
local HVAC codes and authorities to ensure
compliance with ventilation requirements.
7
Optional Installation Items
Oven Restraint Kit (P/N: TC3-0242 KIT)
The oven restraint kit is an optional device that
prevents the oven from moving forward during use
and cleaning. It will not prevent the oven from falling off a countertop if the oven is pulled off or the
legs are allowed to slide off the edge. Call
1-800-90TURBO or your Authorized Distributor
for more information.
Oven Cart
Construction
£
Available heights: 18” (457 mm) or
24” (610 mm)
£
304 stainless steel
£
14-gauge 304 stainless steel top
£
16-gauge 304 solid stainless steel shelf
£
Four 6” (152 mm) high polyurethane tired
casters, front two with safety locking brakes;
bolt-on to stainless steel leg
Standard Features
£
Reinforcement: Welded gusset plates between
legs and top to ensure rigidity/eliminate stand
racking
£
Frame: Fully welded 1.5” x 1.5” (38 mm x 38
mm) square stainless steel tube
£
Easy to assemble
Call 1-800-90TURBO or your Authorized
Distributor for more information.
18" (457 mm) Oven Cart Dimensions
Height 18" (457 mm)
with single oven 39.4" (1001 mm)
with stacked ovens*
top unit without legs 56.8" (1443 mm)
top unit with legs 60.8" (1544 mm)
Width 27.8" (706 mm)
with single oven 27.8" (706 mm)
with stacked ovens* 27.8" (706 mm)
Depth 26.625" (676 mm)
with single oven 31.7" (805 mm)
with stacked ovens* 31.7" (805 mm)
24" (610 mm) Oven Cart Dimensions
Height 24" (610 mm)
with single oven 45.4" (1153 mm)
with stacked ovens*
top unit without legs 62.8" (1595 mm)
top unit with legs 66.8" (1697 mm)
Width 27.8" (706 mm)
with single oven 27.8" (706 mm)
with stacked ovens* 27.8" (706 mm)
Depth 26.625" (676 mm)
with single oven 31.7" (805 mm)
with stacked ovens* 31.7" (805 mm)
*Requires Stacking Bracket.
Assembly instructions are included with the cart.
If additional help is needed, call 1-800-90TURBO
or your Authorized Distributor.
SPECIFICATIONS AND INSTALLATION
Figure 6: 24” (610 mm) Oven Cart with Oven(s)
NOTE: If using 18”
(457 mm) cart, subtract
6” (152 mm) from all
measurements.
8 SPECIFICATIONS AND INSTALLATION
Bottom Jetplate
Top Jetplate
Bottom Support Rail (Right)
Rack
Top Support Rail (x2)
Bottom Support Rail (Left)
Replacing/Exchanging Jetplates
Reference Figure 7. The top and bottom jetplates
ensure hot air is distributed evenly to maximize
food quality. For product-specific results, jetplates
with different hole patterns can be installed.
To remove the bottom jetplate:
1. Ensure the oven is off and the cook cavity
temperature is below 150°F (66°C).
2. Remove the oven rack.
3. Remove both lower support rails.
4. Remove the lower jetplate.
To remove the top jetplate:
1. Ensure the oven is off and the cook cavity
temperature is below 150°F (66°C).
2. Remove the oven rack.
3. Remove the filter bracket.
4. Remove both upper support rails.
5. If additional clearance is required, remove the
air diverter from the rear oven wall using a
Phillips screwdriver.
6. Remove the top jetplate.
Figure 7: Removing Jetplate
Oven Maintenance
The daily and deep cleaning procedures below will help maintain the High h Batch 2 oven. Be sure to use
only TurboChef Oven Cleaner; any other cleaner can damage and void the warranty on critical parts. To
order TurboChef Oven Cleaner, Oven Guard, or a new filter, call 1-800-90TURBO, +1-214-379-6000, or
your Authorized Distributor.
9
1
Supplies and Equipment: TurboChef Oven Cleaner (P/N: 103180), Oven Guard
(P/N: 103181), nylon scrub pad, cleaning towel, soft-bristle cleaning brush,
Phillips screwdriver (only if required for top jetplate removal)
Step 1: Prepare the Oven
£
2
Ensure the oven is turned off – press the On/Off key.
£
DO NOT attempt to clean the oven until the display reads “Ready to Clean.”
WARNING: Injury can occur if the oven is not allowed to cool properly
before cleaning.
Step 2: Remove the Oven Rack
3
£
Wash, rinse, sanitize, and dry the oven rack.
Step 3: Clean the Grease Filter
£
Grasp the filter latch and lift and pull out until the filter and bracket lie flat
(Figure 3).
£
Remove the filter from the bracket and gently rinse it.
4
CAUTION: DO NOT scrub the filter or use a water jet when cleaning.
£
If required, replace the filter (HHB-8287) if it has large holes or is becoming
detached from the frame.
5
6
Step 4: Clean the Oven Door and Cook Chamber
£
Using a damp towel, remove food particles.
£
For stubborn stains, spray Oven Cleaner and allow it to penetrate for 5 minutes.
£
Scrub with a nylon scrub pad.
£
Wipe the oven door and cook chamber with a clean damp towel.
£
Using a clean dry towel, thoroughly dry the cook chamber.
Step 5: Reinstall the Grease Filter and Oven Rack
Step 6: Apply Oven Guard
£
Follow instructions on bottle.
7
Step 7: Wipe the Oven Exterior with a Clean Damp Towel
OVEN MAINTENANCE
CAUTION: DO NOT spray chemicals into any openings, such as the
louvers on the side panels or the cooling fans on the back of the oven.
Doing so can damage critical oven components, resulting in a non-
warranty service call.
10 OVEN MAINTENANCE
4a
1
Deep Cleaning
TurboChef recommends deep-cleaning once per month, or more frequently
depending on oven use.
Step 1: Prepare the Oven
£
2
Ensure the oven is turned off – press the On/Off key.
£
DO NOT attempt to clean the oven until the display reads “Ready to
Clean.”
WARNING: Possible injury can occur if the oven is not allowed to
cool properly before cleaning.
3
Step 2: Remove the Oven Rack
£
Wash, rinse, sanitize, and dry the oven rack.
Step 3: Clean the Oven Door
£
Using a damp towel, remove food particles.
£
For stubborn stains, spray Oven Cleaner and allow it to penetrate for five
minutes.
£
Scrub with a nylon scrub pad.
£
Wipe the oven door with a clean damp towel.
4b
5a
5b
Step 4: Remove the Bottom Jetplate
£
Remove the left and right support rails by gently pulling the rail out,
then toward the middle of the oven (Figure 4a), and then out again.
£
Remove the bottom jetplate by gripping the thumb screw and lifting up
and out (Figure 4b).
£
Wash, rinse, sanitize, and dry the bottom jetplate and both support rails.
Step 5: Remove the Grease Filter and Bracket
£
Grasp the filter latch and lift and pull out until the filter and bracket lie
flat (Figure 5a).
£
Lift the right side of the filter bracket until you are able to remove it
(Figure 5b).
£
Remove the filter from the bracket and gently rinse it.
CAUTION: DO NOT scrub the filter or use a water jet when
cleaning.
£
Wash, rinse, sanitize, and dry the filter bracket.
£
Insert the filter back into the bracket. If required, replace the filter
(HHB-8287) if it has large holes or is becoming detached from the
frame.
Continued on page 11.
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