Moffat E32MS User Manual

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E32MS CONVECTION

OVEN

SERVICE MANUAL

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WARNING: ALL INSTALLATION AND SERVICE REPAIR WORK MUST BE CARRIED OUT BY QUALIFIED PERSONS ONLY.

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CONTENTS

This manual is designed to take a more in depth look at the E32M and E32MS convection ovens for the purpose of making the units more understandable to service people.

There are settings explained in this manual that should never require to be adjusted, but for completeness and those special cases where these settings are required to change, this manual gives a full explanation as to how, and what effects will result.

SECTION PAGE NO.

1. SPECIFICATIONS......................................................................................................... 5

2. INSTALLATION............................................................................................................. 7

3. OPERATION.................................................................................................................. 10

3.1 Description of Controls

3.2 Explanation of Control System

4. MAINTENANCE............................................................................................................. 13

4.1 Cleaning

4.2 Routine Procedures

5. TROUBLE SHOOTING GUIDE .....................................................................................15

6. SERVICE PROCEDURES .............................................................................................19

6.1 Fault Diagnosis

6.2 Access

6.3 Replacement

6.4 Adjustment / Calibration

7. ELECTRICAL SCHEMATICS........................................................................................36

8. ELECTRICAL WIRING DIAGRAMS .............................................................................37

9. SPARE PARTS..............................................................................................................38

10. ACCESSORIES / OPTIONS..........................................................................................39

IMPORTANT: MAKING ALTERATIONS MAY VOID WARRANTIES AND APPROVALS.

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11. PARTS DIAGRAM.........................................................................................................40

11.1 Main Assembly

11.2 Control Panel Assembly

11.3 Gear Plate Assembly

11.4 Door Assembly

12. SERVICE CONTACTS .................................................................................................. 47

APPENDIX A. STACKING BASE STAND............................................................................. 49

APPENDIX B. DOUBLE STACKING KIT.............................................................................. 50

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MODEL: E32M

1. SPECIFICATIONS

710

(28") (32")

MWS

280

(11")

MWS

FRONT

(2")

120

(4¾")

(2¾")

MWS

810

SIDE

670

(26½")

PLAN

LEGEND

- Electrical connection entry point

- Water entry - ¾” BSP hose connection

Dimensions shown in millimetres. Dimensions in inches shown in brackets.

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MODEL: E32MS

710

(28") (32")

MWS

280

(11")

MWS

FRONT

(2")

(2¾")

MWS

120

(4¾")

810

SIDE

670

(26½")

PLAN

LEGEND

- Electrical connection entry point

- Water entry - ¾” BSP hose connection

Dimensions shown in millimetres. Dimensions in inches shown in brackets.

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LOCATION

To ensure correct ventilation for the motor and controls the following minimum installation clearances are to be adhered to:

Rear 75mm / 3“ Left-hand side 75mm / 3” Right-hand side* 75mm / 3” Top 200mm / 8” * Fixed installations require at least 500mm

(20”) clearance at the right hand side for service accessibility.

OVEN INTERNAL DIMENSIONS

Width 468 mm / 18.5” Height 533 mm / 21” Depth 711 mm / 28” Oven Volume 0.18 m³ / 6.3 ft³

OVEN RACK SIZE

Width: 460 mm / 18” Depth: 660 mm / 26”

No of rack positions: 4 Rack position spacing: 125 mm / 5”

ELECTRICAL SUPPLY SPECIFICATION OPTIONS

208 V AC 60 Hz, 28.8 A , 6.0 kW@ 208 V 220-240 V AC 60 Hz, 27.8 A, 6.7 kW @ 240 V 208-220 V AC 50 Hz, 28.8 A, 6.0 kW @ 208 V 230-240 V AC 50 Hz, 27.8 A, 6.7 kW @ 240 V

ELECTRICAL CONNECTION WIRE CONDUCTOR SIZES

Minimum: 4mm² / 16 AWG

WATER SUPPLY CONNECTION Max Pressure 550 kPa / 5.5 bar / 80 psi

Min Pressure 100 kPa / 1.0 bar / 15 psi

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2. INSTALLATION

WARNING: THIS APPLIANCE MUST BE GROUNDED.

WARNING: ALL INSTALLATION AND SERVICE REPAIR WORK MUST BE CARRIED OUT BY QUALIFIED PERSONS ONLY.

Before Connection to Power Supply

• Remove all packing.

• Check equipment and parts for damage. Report any damage immediately to the carrier and distributor.

• Remove protective plastic coating from the side panels.

• Check that the following parts have been supplied with your oven:

4 x Foot assembly 4 x Oven racks 1 x Water inlet elbow (c/w washer)

• Report any deficiencies to the distributor who supplied the oven.

• Fit the feet to the oven.

• Check that the available power supply is correct to that shown on the rating plate located on the right -hand side panel.

208-220 V AC, 50 Hz, 28.8 A, 6.0 kW 208 V AC, 60 Hz, 28.8 A, 6.0 kW 230-240 V AC, 50 Hz, 27.8 A, 6.7 kW 220-240 V AC, 60 Hz, 27.8 A, 6.7 kW

Location

• To ensure correct ventilation for the motor and controls the following minimum installation clearances are to be adhered to:

Rear 75mm / 3” Left-hand side 75mm / 3” Right-hand side* 75mm / 3” Top 200mm / 8”

* Fixed installations require at least

500mm (20”) clearance at the right hand side for service accessibility.

• Position the oven in its working position.

IMPORTANT: THE OVEN VENT LOCATED ON THE CABINET TOP MUST NEVER BE OBSTRUCTED.

• Use a spirit level to ensure oven is level from side to side and front to back. (If this is not carried out, uneven cooking could occur). The feet/legs used with bench/

floor mounting or provided with stands are adjustable and will require adjusting in levelling the unit.

• The unit should be positioned such that the operating panel and oven shelves are easily reachable for loading and unloading.

Electrical Connection

• Remove right hand side panel to allow access to the terminal block and strain relief cable clamp.

• The cable can be fitted through the small grommet and held by the cable clamp.

• Connect cable to the terminals as marked.

• Refit cover panel.

L1 L2

Phase

RED

BROWN

BLACK

WARNING:

Neutral

BLACK

BLUE

WHITE

THIS APPLIANCE MUST

BE GROUNDED / EARTHED

Figure 2.1

Water Connection

• A cold water supply should be fitted to the water inlet (¾” BSP hose connection) which is located on the rear of the right hand side of the unit.

• Alternately, a connection elbow and sealing washer is supplied with this unit for direct connection of a ½” ID hose, and is recommended for easy installation and service.

• Connect water supply - Max inlet pressure 80psi / 550kPa.

• Turn on water supply to check for leaks.

IMPORTANT: MAXIMUM INLET WATER PRESSURE IS 550 kPa / 80 psi.

Ground

GREEN

GREEN/YELLOW

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Before Use

• Operate the oven for about 1 hour at 200°C (400°F) to remove any fumes or odours which may be present.

Rating Plate Location The rating plate for the E32M and E32MS

convection ovens is located at the bottom front corner of the RH side panel.

Rating

Figure 2.3

Plate

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3. OPERATION

NOTE: A full user’s operation manual is supplied with the product and can be used for further

referencing of installation, operation and service.

3.1 DESCRIPTION OF CONTROLS

1. Power

Depress to switch power on or off (switch

illuminates when power is on).

2. Thermostat

Temperature range 50 - 320°C (120 - 600°F). Indicator illuminates when elements are

cycling ON to maintain set temperature.

3. Bake Timer

1 Hour bake timer. (Indicator illuminates when “time up” (0)

reached, and buzzer sounds).

4. Roast ‘n’ Hold

Depress switch to activate ’Roast ’n’ Hold’

function. (Switch illuminates when ON).

5. Roast Timer

3 Hour roast timer. (Indicator illuminates when “time up” (0)

reached, and product held at 75°C (167°F).

6. Steam Switch

Push switch to activate water injection.

(Water injects into oven while the button is depressed).

Light Switch

Push switch to activate lights.

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3.2 EXPLANATION OF CONTROL

SYSTEM

The E32M and E32MS Turbofan convection ovens feature multi-function operator controls for which a correct understanding of their operation is required before carrying out any service or fault repair work. The control device functions are explained as follows:

A power switch on the control panel isolates power to the controls of the oven. With the power switch Off all functions of the oven are inoperable.

With the power switch On (illuminated) power is directly supplied to the 60 minute bake timer, steam (water injection) switch, door microswitch, light switch, and the temperature control circuit. The oven circulation fan will operate whenever the power switch is on. The control panel light switch will turn the oven lights on when the door is closed. The oven lights will come on automatically when the door is open, as this is controlled by the door microswitch. The oven fan and heating elements are also controlled by the door microswitch, and will therefore only operate when the door is closed.

The 60 minute timer is a mechanical timer and can therefore be operated with the oven’s power switch On or Off. However, only with the oven’s power switch On will the switch contacts of the 60 minute timer turn on the time-up buzzer and illuminate the time-up indicator on the control panel. The buzzer and time-up indicator provide indication that the time setting has run down to zero and at this point will remain On continuously until the 60 minute timer has been manually set back to the Off (vertical) position. The 60 minute timer does not control any other part of the oven’s operating system as this timer is independent of the temperature control and heating system.

The steam (water injection) switch on the control panel can be operated whenever the power switch is On. The switch is momentary like the light switch and when depressed, will operate the electric solenoid valve at the rear of the oven and inject water across the elements and fan from the flat spray (vertical) nozzle positioned at the rear of the oven elements. Releasing the steam button will close the solenoid valve. This feature is used to instantaneously add steam into the oven.

The temperature control of this oven is with a capillary type thermostat which can be set to a required cooking temperature.

The control panel indicator light above the thermostat knob cycles On and Off with the thermostat to indicate when the elements are on and the oven is heating.

The E32M and E32MS Turbofan convection ovens have 6.5 kW of electric heating elements, comprising of a 3 kW inner coil, and a 3.5 kW outer coil, both of which make up the element assembly around the oven fan. The elements are switched on and off by the main oven thermostat or hold thermostat via a four-pole 25 Amp contactor located inside the control housing. Only two poles of the contactor are used, one for each element coil. Power to the oven thermostat is supplied from the door microswitch, and will therefore only switch the elements on if the oven door is closed.

The circulation fan on the E32M and E32MS ovens reverses direction every 90 seconds for a 50Hz supply (every 75 seconds for 60Hz). Prior to a change of direction the fan motor is switched off for 10 seconds (8½ seconds for 60Hz) to allow the motor/fan to slow down. Cycling of the fan motor is controlled by a continuous cam timer with electric motor. The timer has two cams and switches which supply power alternately to one of two motor supply wires, causing the motor to alternate direction. During the fan motor slow down periods, both cam switches are open and power is not supplied to either of the motor supply wires. When the oven door is opened or the power is switched off the cams will stop. When the oven door is closed or the power switched back on the cam timer will resume its cycle from the point where it stopped.

The fan motor is a split phase continuous capacitor motor with the capacitor externally connected across the motor supply leads. The motor also incorporates an internal thermal trip switch for overheat protection which is auto resetting.

The E32M and E32MS Turbofan convection ovens feature a Roast-and-Hold system which can be used to automatically set the oven to a fixed holding temperature at the end of a timed cooking period. When the Roast-andHold switch is turned On the switch will illuminate and switch on a hold relay found

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inside the control panel. When the relay is switched ON a normally closed switch pole on the relay is opened and the normal power supply to the oven thermostat is isolated. A second normally open switch pole is closed and this provides power to the 3 hour roast timer.

If the roast timer is in the Hold (vertical) position the timer switch contacts will be in their normally closed position and supply power directly to the Hold thermostat located behind the control panel. The Hold thermostat is factory set to 75°C (167°F) and will supply power to the heating elements through the heating contactor as required to maintain its preset temperature.

The thermostat heating light will also cycle On/Off as the Hold thermostat maintains temperature.

In the Roast-and Hold mode the 3 hour timer can be set to a selected roasting time. During this time period the normally open switch contacts of the timer are closed. The timer has two change over switches and in this position one is used to supply power to its timing motor and the other is used to switch power directly to the main oven thermostat. During the 3 hour timer run-down period the oven temperature will be controlled by the main oven thermostat to the set temperature and operate as previously described.

When the 3 hour timer has run down and reached the Hold position the two switch contacts change over to their normally closed position which isolates power from the timer motor and the oven thermostat. It also switches power back to the oven hold thermostat. At this point the temperature control is now maintained by the hold thermostat as previously described. To cancel the hold circuit the Roast-and-Hold switch is turned Off. This turns off the contactor which removes power from the 3 hour timer and closes the contactor pole on the contactor that feeds the main oven thermostat. The Hold indicator light above the 3 Hour timer will illuminate whenever the oven is operating in hold mode (Roast ‘n Hold selected, and 3 Hour timer at zero position).

The factory preset hold thermostat can be adjusted as required to change the holding temperature if necessary. Refer Service section for this procedure.

The following Troubleshooting Guide should be used to identify any incorrect oven operation. On correct identification of the operating fault the Troubleshooting Guide will make reference to the corrective action required, or refer to the Fault Diagnosis section and / or Service section to assist in correction of the fault.

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4. MAINTENANCE

WARNING: ALL INSTALLATION AND SERVICE REPAIR WORK MUST BE CARRIED OUT BY QUALIFIED PERSONS ONLY.

4.1 CLEANING

WARNING: ALWAYS TURN THE

POWER SUPPLY OFF BEFORE CLEANING.

IMPORTANT: THIS UNIT IS NOT

WATER PROOF. DO NOT USE A WATER JET SPRAY TO CLEAN INTERIOR OR EXTERIOR OF THIS UNIT.

EXTERIOR Clean with a good quality stainless steel

cleaning compound. Harsh abrasive cleaners may damage the surface.

INTERIOR Ensure that the oven chamber is cool. Do not

use wire brushes, steel wool or other abrasive materials. Clean the oven regularly with a good quality oven cleaner. Take care not to damage the fan or the tube at the right side of the oven which controls the thermostat.

OVEN RACKS

To remove, slide out to the stop position, raise the front edge up, and lift out.

SIDE RACKS To remove, lift front top to disengage and

slide rack forward. To replace, slide top rear slot in rack onto rear stud, then engage front keyhole on front stud.

LAMP GLASS To remove glasses, unscrew anti-clockwise. To replace, screw in clockwise.

IMPORTANT: DO NOT OVER TIGHTEN LAMP GLASS.

OVEN SEALS

To remove, hold at their centre point and pull forward until they unclip. Remove side seals first, then top and bottom. The seals may be washed in the sink, but take care not to cut or damage them. To replace, ensure that the lip is facing the oven opening. Fit the top and bottom seals first, then the side seals.

OVEN DOOR GLASS

Clean with conventional glass cleaners.

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4.2 ROUTINE PROCEDURES

PROCEDURE INTERVAL

DOOR SEALS Check for deterioration. 12 months DOOR PIVOT BUSHES Check for wear. 12 months DOOR CATCHES Ensure that catches are adjusted such that the door

closes properly.

ELEMENT Check that element resistance is correct to it’s rating

(refer 6.3.15).

WATER NOZZLE Check for liming in water nozzle. 12 months

12 months

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5. TROUBLE SHOOTING

WARNING: ALL INSTALLATION AND SERVICE REPAIR WORK MUST BE CARRIED OUT BY QUALIFIED PERSONS ONLY.

FAULT POSSIBLE CAUSE REMEDY

THE OVEN DOES NOT OPERATE / START

FAN DOESN’T OPERATE Door not closed.

The mains isolating switch on the wall, circuit breaker or fuses are “off” at the power board.

The power switch on the oven is off.

Incorrect electrical supply.

(Refer fault diagnosis 6.1.1)

Power switch on unit faulty.

(Refer fault diagnosis 6.1.1)

Fan obstructed. Door microswitch is out of

adjustment.

(Refer fault diagnosis 6.1.2)

Door microswitch faulty.

(Refer fault diagnosis 6.1.2)

Motor timer faulty.

(Refer fault diagnosis 6.1.2)

Motor capacitor faulty.

(Refer fault diagnosis 6.1.2)

Fan motor faulty.

Wiring.

Turn on.

Depress switch. Switch will illuminate.

Ensure electrical supply correct.

Replace.

(Refer service section 6.3.4)

Close door. Clear obstruction. Adjust.

(Refer service section 6.4.2)

Replace.

(Refer service section 6.3.2)

Replace.

(Refer service section 6.3.18)

Replace.

(Refer service section 6.3.19)

Replace.

(Refer service section 6.3.17)

Check and tighten any loose wiring.

FAN ONLY OPERATES IN ONE DIRECTION

OVEN LIGHT NOT ILLUMINATING - DOOR OPEN (AUTOMATICALLY ON)

OVEN LIGHT NOT ILLUMINATING - DOOR CLOSED (MANUALLY SWITCHED ON)

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Motor timer faulty.

(Refer fault diagnosis 6.1.2)

Blown bulb.

No power to light.

(Refer fault diagnosis 6.1.3)

Blown bulb.

Light switch faulty.

(Refer fault diagnosis 6.1.4)

-15-

Replace.

(Refer service section 6.3.13)

Replace.

(Refer service section 6.3.1)

Correct fault.

Replace.

(Refer service section 6.3.1)

Replace.

(Refer service section 6.3.4)

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FAULT POSSIBLE CAUSE REMEDY

NO WATER INJECTION / STEAM

CONTINUOUS WATER OUT OF OVEN WATER NOZZLE

60 MINUTE TIMER WILL NOT TIME DOWN

60 MINUTE TIMER INACCURATE BELOW 20 MINUTES

60 MINUTE TIMER NO TIME UP BUZZER

60 MINUTE TIMER NO TIME UP INDICATOR

Water not turned on. Oven water nozzle blocked.

Fault with water valve.

(Refer fault diagnosis 6.1.5)

Steam switch faulty.

With oven on only—Electrical fault.

(Refer fault diagnosis 6.1.6)

With oven on or off - water valve faulty or requires cleaning.

Timer faulty.

Timer not set correctly.

Zero (time up) position not set correctly.

Buzzer faulty.

(Refer fault diagnosis 6.1.7)

Timer not switching on buzzer.

(Refer fault diagnosis 6.1.7)

Indicator faulty.

(Refer fault diagnosis 6.1.8)

Turn water on at water supply. Remove, clean or replace.

(Refer service section 6.3.14) Service or replace as required.

(Refer service section 6.3.12,

6.3.13)

Replace. (Refer service section 6.3.4)

Correct electrical fault.

Service or replace as required.

(Refer service section 6.3.12,

6.3.13)

Replace.

(Refer service section 6.3.7)

For timer settings below 20 minutes, always rotate past 20 minutes, then back to desired time.

(Refer service section 6.4.6)

Replace.

(Refer service section 6.3.5)

Replace.

(Refer service section 6.3.7)

Replace.

(Refer service section 6.3.3)

NO HEAT No power to thermostat.

(Refer fault diagnosis 6.1.9) Thermostat faulty.

(Refer fault diagnosis 6.1.9)

Heating contactor faulty.

(Refer fault diagnosis 6.1.9)

Element faulty (blown).

(Refer fault diagnosis 6.1.9)

NO TEMPERATURE CONTROL (TEMPERATURE OVERRUN)

Heating contactor faulty.

(Refer fault diagnosis 6.1.9)

Thermostat faulty. (Refer fault diagnosis 6.1.10)

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Identify fault and correct.

Replace.

(Refer service section 6.3.9)

Replace.

(Refer service section 6.3.11)

Replace.

(Refer service section 6.3.15)

Replace.

(Refer service section 6.3.11)

Replace.

(Refer service section 6.3.9)

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FAULT POSSIBLE CAUSE REMEDY

SLOW RECOVERY Oven in ‘Roast ‘n Hold’ mode.

Overloading of oven. Electrical supply incorrect.

Fan not working. Thermostat out of calibration.

(Refer fault diagnosis 6.1.11)

Element not working.

ELEMENT NOT WORKING Element faulty (blown).

(Refer fault diagnosis 6.1.9)

NO THERMOSTAT HEATING INDICATOR

ROAST TIMER (180 MINUTE) WILL NOT TIME DOWN

NO HOLD INDICATOR

HOLDING TEMPERATURE INCORRECT

Indicator faulty.

(Refer fault diagnosis 6.1.12)

Roast ’n’ Hold switch not depressed.

No power to timer / timer faulty.. (Refer fault diagnosis 6.1.13)

‘Roast ‘n Hold’ switch faulty. (Refer fault diagnosis 6.1.13)

Faulty indicator. (Refer fault diagnosis 6.1.14)

Faulty timer. (Refer fault diagnosis 6.1.14)

Hold thermostat set temperature incorrect.

Hold thermostat faulty. (Refer fault diagnosis 6.1.15)

Switch off ‘Roast ‘n Hold’. Reduce oven loading. Check supply voltage is as per

rating plate voltage. Check fan operation. Correct calibration.

(Refer service section 6.4.1) Correct element fault.

(Refer Fault: No Heat) Replace.

(Refer service section 6.3.15) Replace.

(Refer service section 6.3.3) Depress switch. Switch will

illuminate. Correct electrical fault / replace

timer. (Refer service section 6.3.8)

Replace. (Refer service section 6.3.4)

Replace.

(Refer service section 6.3.3)

Replace. (Refer service section 6.3.8)

Adjust to correct temperature. (Refer service section 6.4.5)

Replace. (Refer service section 6.3.10)

DOOR DOES NOT CLOSE Tray in way of door.

Door seal obstruction.

Door handle installed incorrectly.

Door catch setting incorrect.

Door pivot bushes / pins worn.

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Correctly position tray in rack. Correctly install door seal.

(Refer service section 6.3.22)

Ensure handle is fitted correctly.

Adjust.

(Refer service section 6.4.3)

Replace.

(Refer service section 6.3.23)

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FAULT POSSIBLE CAUSE REMEDY

DOOR SEAL LEAKS

Door seal damaged.

Door seal incorrectly fitted.

Door catch setting incorrect.

Door pivot bushes / pins worn.

Door catch striker plate worn.

Replace. (Refer service section 6.3.22)

Correctly install door seal.

(Refer service section 6.3.22)

Adjust.

(Refer service section 6.4.3)

Replace.

(Refer service section 6.3.23)

Replace.

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6. SERVICE PROCEDURES

WARNING: ENSURE POWER SUPPLY IS SWITCHED OFF BEFORE SERVICING.

WARNING: ALL INSTALLATION AND SERVICE REPAIR WORK MUST BE CARRIED OUT BY QUALIFIED PERSONS ONLY.

SECTION PAGE NO.

6.1 FAULT DIAGNOSIS..............................................................................................................21

6.1.1 Oven Does Not Operate / Start............................................................................21

6.1.2 Fan Does Not Operate.........................................................................................21

6.1.3 Oven Light Not Illuminating—Door Open ............................................................22

6.1.4 Oven Light Not Illuminating—Door Closed..........................................................22

6.1.5 No Water Injection / Steam..................................................................................22

6.1.6 Continuous Water Out Of Oven Water Nozzle....................................................22

6.1.7 60 Minute Timer No Time Up Buzzer ..................................................................22

6.1.8 60 Minute Timer No Time Up Indicator................................................................23

6.1.9 No Heat................................................................................................................23

6.1.10 No Temperature Control (Temperature Ov errun)................................................24

6.1.11 Slow Recovery.....................................................................................................24

6.1.12 No Thermostat Heating Indicator.........................................................................24

6.1.13 Roast Timer (180 Minute) Will Not Time Down...................................................24

6.1.14 No Hold Indicator.................................................................................................25

6.1.15 Holding Temperature Incorrect............................................................................25

6.2 ACCESS................................................................................................................................26

6.2.1 Control Panel .......................................................................................................26

6.2.2 Service Panel (Side Panel)..................................................................................26

6.2.3 Control Panel (Rear)............................................................................................26

6.3 REPLACEMENT....................................................................................................................27

6.3.1 Light Bulb / Glass.................................................................................................27

6.3.2 Door Microswitch..................................................................................................27

6.3.3 Neon Indicator......................................................................................................27

6.3.4 Power / Roast / Lights / Water Switches..............................................................27

6.3.5 Buzzer..................................................................................................................27

6.3.6 Hold Relay............................................................................................................28

6.3.7 Bake Timer...........................................................................................................28

6.3.8 Roast Timer..........................................................................................................28

6.3.9 Thermostat...........................................................................................................28

6.3.10 Hold Thermostat...................................................................................................29

6.3.11 Heating Contactor................................................................................................29

6.3.12 Water Solenoid.....................................................................................................29

6.3.13 Water Solenoid Cleaning

6.3.14 Spray Nozzle........................................................................................................30

6.3.15 Elements..............................................................................................................30

6.3.16 Fan.......................................................................................................................30

6.3.17 Motor....................................................................................................................31

6.3.18 Motor Timer..........................................................................................................31

6.3.19 Motor Capacitor....................................................................................................31

6.3.20 Outer Glass..........................................................................................................31

.....................................................................................30

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6.3.21 Inner Glass...........................................................................................................32

6.3.22 Door Seals ...........................................................................................................32

6.3.23 Door Pivot Bushes...............................................................................................32

6.3.24 Stainless Steel Door—Outer Glass .....................................................................33

6.3.25 Stainless Steel Door—Inner Glass......................................................................33

6.4 ADJUSTMENT / CALIBRATION ..........................................................................................34

6.4.1 Thermostat Calibration.........................................................................................34

6.4.2 Door Microswitch Adjustment ..............................................................................34

6.4.3 Reversing the Door..............................................................................................34

6.4.4 Door Roller Catch Adjustment .............................................................................35

6.4.5 Door Alignment ....................................................................................................35

6.4.6 Hold Temperature Adjustment.............................................................................35

6.4.7 60 Minute Timer Zero Position Adjustment..........................................................35

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6.1 FAULT DIAGNOSIS

6.1.1 OVEN DOES NOT OPERATE / START Incorrect electrical supply

Check that the voltage across phase and neutral (L1 and L2) terminals of terminal block is the voltage as stated on the unit’s electrical rating plate.

If incorrect, check electrical connection of supply wiring and / or check electrical supply.

Power switch faulty

Check if power switch latches. If the switch does not latch, then switch is faulty—replace.

With switch latched, check voltage across terminal one to terminal three or four. If there is no voltage, check for fault in wiring.

Check voltage across terminal two to terminal three or four. If there is no voltage, then switch is faulty—replace.

NOTE:

6.1.2 FAN DOESN’T OPERATE Microswitch out of adjustment

Open oven door and manually depress door microswitch actuator at top right of oven. If this activates the fan, then the microswitch actuator arm inside control cavity requires adjustment.

Microswitch faulty

Check voltage from microswitch terminals to neutral.

With the door closed there should be power to the com terminal and the n.o. terminal.

With the door open there should be power to the com terminal and the n.c. terminal.

If not, microswitch is faulty—replace.

Microswitch

When power switch is latched, it

should illuminate if operating correctly.

n.c.

Fan motor timer faulty

With oven switched on, and door closed, ensure that the cams on the motor timer are rotating.

Motor Cams

(Rotate one

revolution every

3 minutes)

Figure 6.1.2

If cams are rotating, then isolate the power supply from the oven. Remove the bottom wire from the left hand switch terminals. Rotate the cams manually whilst testing for continuity through the left hand switch. Check that the continuity cycles as the cams are rotated. Re-secure the left hand wire, and then repeat test for right hand switch.

When operating, 50Hz models should cycle the power for approximately 80 seconds through each switch, with a 10 second delay between each cycle.

On 60Hz models the power should cycle for approximately 65 seconds through each switch, with an 8 second delay between each cycle.

If there is no continuity, or the continuity does not cycle correctly then timer is faulty - replace.

Fan motor capacitor faulty

Ensure that oven is isolated from the power supply. Disconnect the two capacitor wires. Briefly short across the capacitor terminals, to ensure that it is fully discharged.

Using a multimeter, measure the resistance across capacitor terminals.

The resistance should start low and quickly increase to infinity within 5-10 seconds. If the resistance does not increase at all, then the capacitor is shorted - replace. If the capacitor is infinite resistance straight away then it is open-circuit - replace. If the resistance never goes very high then the capacitor is leaky replace.

Revision 6/F3587

Figure 6.1.1

com

n.o.

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6.1.3 OVEN LIGHTS NOT ILLUMINATING DOOR OPEN (AUTOMATICALLY ON)

No power to lights

Check the supply voltage across lamp housing terminals at RH side rear of oven. If the voltage is correct, replace the bulb (if faulty). If the bulb is OK, check lamp housing. Replace if faulty.

If there is no voltage, open oven door and manually depress door microswitch actuator at bottom right of oven. If this activates the lights, then the microswitch actuator arm behind the control panel requires adjustment.

Check voltage across micro-switch terminals to neutral.

With the door open there should be power to the com terminal and the n.c. terminal.

If not, microswitch is faulty—replace.

n.c.

Check voltage to the bottom terminal of the switch. If there is no voltage, then check wiring.

With switch depressed, check for voltage at top terminal. If there is no voltage then replace switch. If voltage correct, check wiring to solenoid coil.

If power supply to the coil is correct, disconnect wiring to coil and check the resistance of the coil windings.

Correct coil resistance: 3650 ohms

NOTE:

If open circuit / high resistance, then

the coil is faulty—replace. If coil resistance is correct, rewire and listen

for an audible solenoid click when the steam switch is depressed.

If solenoid can be heard functioning, and oven water nozzle is not blocked, then remove water solenoid and fittings and check for blockages.

Microswitch

com

Figure 6.1.3

6.1.4 OVEN LIGHTS NOT ILLUMINATING DOOR CLOSED (MANUALLY SWITCHED ON)

Light switch faulty

Check voltage to the bottom terminal of the switch. If there is no voltage, then check wiring.

With switch depressed, check voltage at top terminal. If there is no voltage, then replace the switch.

If voltage is correct, then check wiring to light.

NOTE:

Alternately, perform a continuity test

across the terminals with the light switch depressed.

6.1.6 CONTINUOUS WATER OUT OF OVEN WATER NOZZLE

Water solenoid electrical fault

With control panel steam switch not depressed, check for power supply across solenoid coil. If there is power to the coil, then check wiring and steam switch (refer 6.1.5).

6.1.7 60 MINUTE TIMER NO TIME UP BUZZER

Buzzer faulty

With timer in ‘zero’ position, check the buzzer at side of control panel (inside) for voltage across terminals. If voltage is correct then buzzer is faulty—replace.

If there is no voltage, then check wiring.

Buzzer

6.1.5 NO WATER INJECTION / STEAM Fault with water valve

Check voltage supply across the water valve solenoid coil with the steam switch depressed. If there is no power supply then check the control panel steam switch.

Revision 6/F3587

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Figure 6.1.4

Page 23

Timer not switching on buzzer

With timer in zero position, check voltage to top connection (terminal one) and bottom connection (terminal two) of timer. If there is no voltage at terminal one then check wiring.

If no voltage at terminal two then timer is faulty—replace.

NOTE:

Timer will continue to run approximately three minutes below zero. Buzzer and time up indicator will continue until the timer is manually switched off (to vertical position).

6.1.8 60 MINUTE TIMER NO TIME UP

INDICATOR

Indicator faulty

With the timer in the zero position, check for voltage across the indicator light. If correct, then the indicator light is faulty—replace.

If there is no voltage then check wiring.

6.1.9 NO HEAT No power to thermostat

Check voltage to terminal 2 on oven thermostat. If there is no voltage then check voltage through terminal 5 and one on hold relay (behind control panel). If there is no voltage to terminal 5 then check wiring. If there is no voltage to terminal 1 then check that the hold relay has no power at relay coil terminal 7. If relay coil is not energised (ie no power at 7) and no power out of terminal 1, then the relay is faulty—replace.

Hold Relay

4 6

123 5

Figure 6.1.6

Thermostat faulty

Set thermostat to 200°C or 400°F. Check the voltage out of terminal 1 on the thermostat. If there is no voltage then the thermostat is faulty—replace.

If the voltage is correct and the heating light is on then check all wiring to heating contactor.

Heating contactor faulty With thermostat on, check that the heating contactor coil has power to terminal A1 and voltage across the coil, terminals A1 and A2. If incorrect check wiring.

If voltage is correct, check that contactor pulls in and closes the contacts when power to contactor coil is on. Correct operation will make an audible noise when closing contacts and on the front face of the contactor the contact mechanism will visibly pull in. If not, contactor is faulty—replace.

If contactor operates correctly, check for continuity through the poles of the contactor when closed. If no continuity through connected poles then contacts are blown and contactor requires replacing.

Terminal A1 Terminal 1

Terminal 2

Terminal A2 Terminal 3

Terminal 4

Hold Relay

Figure 6.1.5

If relay is energised (ie power at 7) then ’Roast n Hold’ switch is on and unit is in hold mode. Turn off ’Roast n Hold’ and recheck operation.

NOTE:

There should be no voltage across

these terminals when ‘Roast ‘n Hold’ is not selected.

Revision 6/F3587

Figure 6.1.7

For checking elements where temperature overrun is occurring, check that contactor releases (opens) when thermostat is switched OFF. If not, contacts of the contactor have welded shut and elements will be ON and heating will be continuous. Contactor is faulty—replace.

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Page 24

Element faulty (blown)

With the thermostat on and heating check voltage across element terminals at RH side of oven. If the voltage is correct then check the current draw of element. If there is no current draw then element is faulty—replace.

If there is no voltage then check voltage is being supplied to each element coil from the heating contactor. If no voltage to elements, check contactor operation (refer 6.1.9) and wiring.

NOTE:

Correct element current draw:

208 V : Inner Coil 12.9A ± 2.5% Outer Coil 15.0A ± 2.5% 220 V : Inner Coil 13.6A ± 2.5% Outer Coil 15.9A ± 2.5% 240 V : Inner Coil 12.5A ± 2.5% Outer Coil 14.6A ± 2.5%

6.1.10 NO TEMPERATURE CONTROL

(TEMPERATURE OVERRUN)

Heating contactor faulty

Refer 6.1.9

Thermostat faulty

With thermostat in off (vertical) position, the heating indicator should be off. If not then the thermostat is faulty—replace.

6.1.12 NO THERMOSTAT HEATING INDICATOR

Indicator faulty

Check the voltage across the indicator terminals. If the voltage is correct then the indicator is faulty—replace.

If there is no voltage then check wiring.

6.1.13 ROAST TIMER (180 MINUTE) WILL NOT TIME DOWN

No power to timer

Check the voltage at terminal 5 on underside of the 180 minute timer.

Check that one lead of timer motor is connected to terminal five of timer and the other lead is connected to neutral of ‘Roast ’n Hold’ switch.

If voltage at terminal 5 is correct and wiring is correct then the timer motor is faulty—replace timer.

If there is no power at terminal 5, check for power supply at terminal 4 of timer. If there is voltage at terminal 4 and not at terminal 6 with timer set, then timer switch is faulty—replace timer.

6.1.11 SLOW RECOVERY Thermostat out of calibration

Place an accurate digital thermometer probe in centre of oven. Set thermostat to 180°C or 355°F. Close the oven door and allow oven thermostat to cycle on and off twice. Record oven centre temperature for the next thermostat on and off cycle. The thermostat should cycle on and off between 165°C and 195°C or 330°F and 385°F when set to the above temperature. If oven temperature is outside these ranges, then the thermostat requires recalibration.

NOTE:

Thermostat cycling span should be

±15°C or 27°F

Terminal 4

Terminal 1 Terminal 2

Terminal 5

Terminal 6

Terminal 3

Figure 6.1.8

If terminal 4 voltage is correct, check relay at the base of the control housing behind control panel is latched ON. If relay is ON then check wiring.

If relay is not latched ON when ‘Roast ‘n Hold’ switch illuminated then check the voltage across terminals 7 and 8 of relay coil (fig

6.1.5). If the voltage is correct but the relay is

in the off position then the relay is faulty— replace.

If there is no voltage across 7 and 8 then check wiring.

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Page 25

‘Roast ‘n Hold’ switch faulty

Check if the switch latches. If the switch does not latch then the switch is faulty—replace.

With the switch latched, check voltage across terminal 1 to terminal 3 or 4. If there is no voltage then check for fault in wiring.

Check voltage across terminal 2 to terminal 3 or 4. If there is no voltage then switch is faulty—replace.

NOTE:

When the switch is latched, it should

illuminate if operating correctly.

6.1.14 NO HOLD INDICATOR Indicator faulty

Check the voltage across the indicator terminals. If the voltage is correct then the indicator is faulty—replace.

If there is no voltage then check wiring.

Timer faulty NOTE:

Timer in ‘HOLD’ position (vertical) and

‘Roast n Hold’ switch on (illuminated). Check the voltage at terminal three of timer,

with timer in hold position. If the voltage is correct then check wiring.

If there is no voltage then check voltage at terminal one of timer. If there is voltage at terminal one, but no voltage at terminal three with timer in hold position then timer switch is faulty—replace.

If the voltage is correct, and the thermostat is adjusted above oven temperature, then check for output voltage at terminal 1 (bottom) of hold thermostat. If there is no voltage and the hold thermostat will not switch on then the thermostat is faulty—replace.

If the voltage is correct but the element is not working then check wiring.

6.1.15 HOLDING TEMPERATURE INCORRECT

Hold thermostat faulty

With the power switch on and illuminated, ‘Roast ‘n Hold’ switch on and illuminated, and the roast (180 minute) timer set to hold, check that the hold indicator is illuminated.

With a cold oven (ie room temperature) check that the oven element is heating. Test the voltage across the element terminals at the RH side of oven. If the voltage is correct then refer Fault: No heat (trouble shooting section).

If there is no voltage at the element terminals, check the voltage at terminal 2 of the hold thermostat at RH side of control panel (fig

6.3.12). If there is no voltage then check

wiring.

Revision 6/F3587

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6.2 ACCESS

6.2.1 CONTROL PANEL

6.2.3 CONTROL PANEL—REAR

1) Undo the two screws at the bottom of the

control panel.

Two screws

Figure 6.2.1

2) The panel can now be removed.

When closing the panel ensure wires and

thermostat capillary tubes are clear of metal or other terminals.

6.2.2 SERVICE (SIDE) PANEL

1) Undo the four screws holding the panel.

Power Switch

Heating Indicator

Thermostat

Bake Time Up Indicator

Buzzer Bake Timer

Hold Relay

Hold Thermostat

Roast‘n Hold Switch

Roast ‘n Hold Time Up Indicator

Roast Timer

Figure 6.2.2

2) Remove side panel.

Steam Switch

Light Switch

Figure 6.2.3

Four screws

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6.3 REPLACEMENT

6.3.1 LIGHT BULB / GLASS

1) Unscrew lamp cover(s).

Figure 6.3.1

Lamp covers

Neon wires

Figure 6.3.3

2) From back push neon through front of panel rotating clockwise.

3) Push new neon in from front of panel, and reconnect wires.

2) Unscrew bulb out of fitting.

3) Screw in replacem ent bulb.

4) Ensure seal fitted. Screw lamp cover into holder with baffle fitted (do not over tighten).

6.3.2 DOOR MICROSWITCH

1) Remove control panel (refer 6.2.1)

2) Remove two screws holding microswitch to bracket.

Microswitch

Figure 6.3.2

6.3.4 POWER / ROAST / LIGHTS / STEAM SWITCHES

1) With control panel open (refer 6.2.1)

remove the wires from the back of the switch, noting their positions.

Switch wires

Figure 6.3.4

2) From back push switch through front of

panel.

3) Push new switch in from front of panel,

and reconnect wires.

6.3.5 BUZZER

3) Transfer wires to the new switch and reassemble.

4) Adjust micro-switch (refer 6.4.2).

6.3.3 NEON INDICATOR

1) With control panel open (refer 6.2.1) remove the wires from the back of the neon.

Revision 6/F3587

1) Remove control panel (refer 6.2.1).

2) Remove two screws holding buzzer / relay bracket to control panel.

Figure 6.3.5

-27-

Two screws

Page 28

3) Withdraw and remove two screws holding buzzer to bracket.

4) Transfer wires to new buzzer.

5) Reassemble in reverse order.

6.3.6 HOLD RELAY

1) Open control panel (refer 6.2.1).

2) Remove two screws securing the relay to the buzzer / relay bracket on the control panel.

Two screws

6.3.8 ROAST TIMER

1) Remove roast timer knob by pulling it firmly away from control panel.

2) Open control panel (refer 6.2.1) and undo two screws securing timer.

Two screws

Figure 6.3.8

3) Transfer wires to new timer.

4) Withdraw old timer and insert new timer, securing with screws.

5) Replace knob.

Figure 6.3.6

3) Withdraw and transfer wires to new relay.

4) Reassemble in reverse order.

6.3.7 BAKE TIMER

1) Remove bake timer knob by pulling it firmly away from control panel.

2) Open control panel (refer 6.2.1) and undo

two screws securing timer.

Two screws

Figure 6.3.7

3) Transfer wires to new timer.

4) Withdraw old timer and insert new timer,

securing with screws.

5) Replace knob.

6.3.9 THERMOSTAT

1) Pull knob off front of thermostat

2) Open control panel (refer 6.2.1) and undo two screws securing thermostat.

Two screws

Figure 6.3.9

3) Transfer wires to new thermostat.

4) Open oven door, remove racks and fan baffle rack. Loosen two screws securing thermostat phial bracket.

Thermostat phial

bracket

Revision 6/F3587

-28-

Figure 6.3.10

Page 29

5) Withdraw old thermostat phial through side of oven. Note position in phial bracket.

6) Insert new thermostat.

7) Re-assemble in reverse order.

NOTE:

Ensure that the thermostat phials are located in their correct positions. The main thermostat probe must be on the side closest to the door. The hold thermostat must be on the side closest to the fan and elements.

Control thermostat

Hold thermostat

phial

Towards

the

door

4) Withdraw the old hold thermostat phial through the side of the oven. Note the position of the phial in the bracket.

5) Insert new thermostat phial.

6) Re-assemble in reverse order.

NOTE:

Ensure that the thermostat phials are located in their correct positions. The main thermostat probe must be on the side closest to the door. The hold

6.3.11 HEATING CONTACTOR

1) Remove the right hand service panel (refer 6.2.2).

2) Unclip contactor from the gear plate.

Contactor

Figure 6.3.11

6.3.10 HOLD THERMOSTAT

1) Open control panel (refer 6.2.1) and undo two screws securing hold thermostat bracket.

Two screws

Figure 6.3.12

2) Remove the two screws securing the hold thermostat to the bracket, and then fit the new thermostat in its place.

3) Transfer wires to new thermostat.

3) Open oven door, remove racks and fan baffle rack. Loosen the thermostat phial bracket (refer figure 6.3.10).

Figure 6.3.13

3) Clip new contactor onto gear plate.

4) Transfer wires from old contactor to new contactor, ensuring all wires are in their correct positions.

6.3.12 WATER SOLENOID

1) Ensure water supply is turned off.

2) To access the solenoid, remove the right

hand service panel (refer 6.2.2)

3) Disconnect all water connections from the

water solenoid.

4) Remove water solenoid from oven by

removing two screws securing the water solenoid to its mounting bracket.

Water

solenoid

Revision 6/F3587

-29-

Figure 6.3.14

Page 30

5) Carefully withdraw solenoid.

6) Replace or service solenoid as required.

7) To reinstall, reverse procedure.

8) Check water connections do not leak.

9) Check for correct operation of the oven water injection.

6.3.13 WATER SOLENOID CLEANING

1) Disconnect water supply from the water

solenoid.

2) Remove the sieve from the water valve

assembly by pulling firmly away from the assembly with a pair of pliers.

Sieve

6.3.15 ELEMENTS

1) Remove service panel (refer 6.2.2) and baffle.

2) Remove the wires from the elements.

Element

wires

Figure 6.3.17

3) Unscrew the elements from inside the oven.

Element screw

Figure 6.3.15

4) Clean the sieve, removing all dirt and grime.

5) Replace the sieve and reconnect the water supply.

6.3.14 SPRAY NOZZLE

1) Inside the oven remove the RH side fan baffle, then unscrew the spray nozzle.

Spray nozzle

Figure 6.3.16

2) Clean or replace as required, ensuring debris free on re-assembly.

3) Ensure that the spray nozzle is installed in the vertical position.

Figure 6.3.18

4) Pull elements carefully to remove. Silicone sealant may require effort to remove elements.

5) Replace and re-assemble in reverse order. Use high temperature (232°C / 450°F minimum) RTV silicone sealant to seal element against side wall of oven.

Element Rating: 208-220 V Inner Element 17.0 ohms

Outer Element 14.1 ohms 230-240 V Inner Element 19.4 ohms

Outer Element 17.0 ohms

6.3.16 FAN

1) With baffle removed undo the grub screw securing the fan to the motor shaft.

Grub screw

Revision 6/F3587

Figure 6.3.19

2) Remove the fan from the shaft, replace, and reassemble.

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6.3.17 MOTOR

1) Remove fan (refer 6.2.16).

2) Remove the right hand service panel and then remove the motor wires.

3) Undo the four screws holding the motor in place (from inside the oven) and remove motor.

Capacitor

Four

screws

Figure 6.3.20

4) Replace motor and reassemble in reverse order.

6.3.18 MOTOR TIMER

1) Remove the right hand service panel (refer 6.2.2).

2) Remove the screws securing the motor timer to the gear plate.

Motor timer

Figure 6.3.22

3) Remove the capacitor wires, noting their positions.

4) Fit new capacitor and reassemble in reverse order.

6.3.20 OUTER GLASS

1) Open door.

2) Loosen the two screws securing the

bottom pivot whilst supporting the door. The pivot can now be lowered, and the door removed from the oven.

Figure 6.3.21

3) Fit the new timer to the gear plate, and transfer the wires from the old timer.

6.3.19 MOTOR CAPACITOR

1) Remove the right hand service panel (refer 6.2.2).

2) Undo the nut securing the capacitor to the mounting bracket.

Revision 6/F3587

Bottom pivot

Figure 6.3.23

3) Remove screws securing door handle, and remove the handle from the door assembly.

Screws

Figure 6.3.24

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4) Remove four screws in top trim and four screws in bottom trim of door, and remove trim panels.

Four screws

Figure 6.3.25

5) Lift outer glass away from door.

6) To replace, ensure that the two silicone rubber seals are in place on the left hand and right hand side of the door frame. Clean the inside of the glass and refit it, ensuring that the silicone rubber seals cover the outer edges of the glass. Refit the trim panels.

6.3.21 INNER GLASS

1) Remove the outer glass (refer 6.3.20).

Uncrimp the retaining lugs of the window spacer and remove the spacer and glass.

Retaining

lugs

Door seals

Figure 6.3.27

3) Refit new seals. Note:

Fit top and bottom seals first, with

open side of seal facing downwards. Fit side seals with open side facing outwards.

6.3.23 DOOR PIVOT BUSHES

1) Remove door as per steps one and two of section 6.3.18.

2) Remove the top and bottom pivot brackets (two screws).

Two screws

Figure 6.3.26

2) To replace, ensure the silicone rubber seal has not been displaced. Clean the glass and refit it. Place the window spacer in position and crimp the retaining lugs over to hold the glass in place. Refit outer glass as above.

6.3.22 DOOR SEALS

1) Open oven door.

2) To remove, hold at their centre point and pull forward until they unclip

Revision 6/F3587

Figure 6.3.28

3) Door bushes can now be removed and replaced.

Door pivot

Figure 6.3.29

4) Reinstall door by reversing steps one to two of section 6.3.18.

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bush

Page 33

6.3.24 STAINLESS STEEL DOOR

- OUTER GLASS

1) Remove the door as per steps one and two of section 6.3.20.

2) Remove the top and bottom pivots (two screws each), and the door handle and roller catches (two screws top and bottom).

Top pivot

Door handle

Bottom pivot

Figure 6.3.30

3) The stainless steel door outer can now be removed.

4) To replace the outer glass, simply remove and replace, taking care that the outer seals are positioned correctly around the glass edge.

Ensure when replacing that the side with

the ‘L’ mark is inside the door (not on the front of the oven). This ensures the correct operation of the ‘Low E’ glass.

5) Reassemble in reverse order and refit door to oven.

3) Replace with new glass. Ensure when replacing that the side with

the ‘L’ mark is inside the door (not inside the oven). This ensures the correct operation of the ‘Low E’ glass.

4) Reassemble and refit door to the oven.

6.3.25 STAINLESS STEEL DOOR

- INNER GLASS

1) Remove the outer glass (refer 6.3.24).

2) Uncrimp the retaining angles and remove inner glass.

Retaining angles

Figure 6.3.31

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6.4 ADJUSTMENT / CALIBRATION

6.4.1 THERMOSTAT CALIBRATION

IMPORTANT: IF THE OVEN

TEMPERATURE NEEDS TO BE INCREASED, ENSURE THAT THE THERMOSTAT IS IN THE ‘OFF’ POSITION BEFORE CARRYING OUT ADJUSTMENT. IF OVEN TEMPERATURE NEEDS TO BE DECREASED, ENSURE THERMOSTAT IS IN THE MAXIMUM TEMPERATURE POSITION BEFORE CARRYING OUT ANY ADJUSTMENT.

6.4.2 DOOR MICROSWITCH ADJUSTMENT

1) Open oven door.

2) Open control panel (refer 6.2.1).

3) With fingers, bend actuator arm of microswitch so that switch operates when door is in closed position.

Actuator

arm

Figure 6.4.3

Thermostat

Calibration nut

Figure 6.4.1

1) Remove thermostat knob by pulling it firmly away from control panel.

2) Adjust the calibration nut located at the base of the thermostat shaft.

Calibration

nut

6.4.3 REVERSING THE DOOR

If desired, a left hand hinged oven door can be changed to a right hand hinged door (or vice versa).

1) While supporting the door, undo the door hinges from the oven. Remove the door.

2) The bottom right door catch plate should now be transferred to the top left of the oven (a), and the top right door catch plate transferred to the bottom left of the oven (b).

Figure 6.4.2

To increase oven temperature, turn the

calibration nut anticlockwise.

To decrease oven temperature, turn the

calibration nut clockwise.

Adjustment of the calibration nut by 1°

angular will alter oven temperature by approximately 2°C (3.6°F).

3) Refit the knob to the thermostat..

4) Recheck the oven thermostat calibration.

5) Repeat procedure if necessary.

Revision 6/F3587

Figure 6.4.4

3) Secure the door hinges and oven door to the right hand side of the oven door opening.

4) If alignment of the door is necessary, the five screws along the bottom of the oven can be loosened, and the door moved a small amount to ensure that it is square with the oven. Tighten the screws when the correct door position is attained.

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5) If necessary the roller catches can be removed from the door (after removing handle on stainless steel doors) to adjust height settings for correction of door catch operation.

6.4.4 DOOR ROLLER CATCH

ADJUSTMENT

1) Open the door.

2) Remove the two screws securing the

roller catch to the door and withdraw the catch.

3) Tighten or loosen the nuts on the catch

assembly to adjust the height of the roller.

6.4.6 HOLD TEMPERATURE ADJUSTMENT

1) Open control panel (refer 6.2.1) to gain access to the hold thermostat (located inside the control panel).

2) The hold temperature of the oven can be adjusted by turning the hold thermostat dial to the desired hold temperature.

Roller catch

Adjustment nuts

Figure 6.4.5

4) Refit catch to door and check operation. Adjust again if necessary.

6.4.5 DOOR ALIGNMENT

1) Loosen the five screws along the bottom edge of the oven front.

Hold thermostat

Figure 6.4.7

6.4.7 60 MINUTE TIMER ZERO POSITION ADJUSTMENT

1) Remove 60 minute timer knob by pulling it

firmly away from control panel.

2) Open control panel (refer 6.2.1). Loosen

two screws on control panel holding 60 minute timer.

Two screws

Five screws

Figure 6.4.6

2) Adjust the door position to ensure that it is square with the oven. Tighten the screws.

Revision 6/F3587

Figure 6.4.8

3) The timer can now be rotated a small amount to ensure that the buzzer sounds and indicator illuminates at the zero (time up) position.

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7. ELECTRICAL CIRCUIT SCHEMATIC

13 5

CONTACTOR

3 1

2 A1

HOLD

SWITCH

THERMOSTAT

HEATING

HOLD

T'STAT

HOLD

TOTAL LOADS:

208V 5810W

220V 6500W

230V 6000W

HEATING ELEMENTS

ROAST

240V 6500W

TIMER

4 6

3 5 1

HOLD

RELAY

100W

3uF

BROWN

FAN

TIMER

MOTOR

DOOR

M'SWITCH

No NoNc Nc

MOTOR

BLUE

BLACK

LIGHTS

2x40W

LIGHTS

WATER

TIME

WATER

SOLENOID

1Hr TIMER

BUZZER

Revision 6/F3587

4 3

POWER

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8. ELECTRICAL WIRING DIAGRAM

WATER

SOLENOID

OVEN LIGHT

50 51

29 30

ELEMENTS

3335

BLOCK

TERMINAL

35 48

CAPACITOR

3513

CONTACTOR

4614 2

3 1

WHITE

BLACK

MOTOR TIMER

FAN

MOTOR

BUZZER

7 8

BROWN

BLACK BLUE

RELAY

2423

321

HOLD

T/STAT

COM

POWER SWITCH

4142

T/STAT INDICATOR

T/STAT

222642

43 43

BAKE TIMER

INDICATOR

BAKE TIMER

ROAST &

HOLD

3hr TIMER

BLACK

BLUE

49 50

COM

DOOR

MICROSW

STEAM

SWITCH

LIGHTS

SWITCH

EARTH STUD

CONTROL PANEL

EARTH TAG

17 17

Revision 6/F3587

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9. SPARE PARTS

Controls

021473 Power Switch 024774 Thermostat 021472 Knob - Thermostat 020849 Neon Indicator 011760 Bake Timer 011794 Buzzer 021476 Switch- Roast ’n’ Hold 011419 Roast ’n’ Hold Timer 020823 Knob - Bake Timer / Roast ’n’ Hold Timer 021474 Steam Switch 024773 Light Switch 015966 Contactor - Elements 021534 Relay - Roast ’n’ Hold 018223 Hold Thermostat 024802 Microswitch 003002 Oven Lamp Glass 003434 Silk Gasket 013521 Oven Lamp - 40W Miniature Edison Screw

Motor & Elements 015360 Element Assembly 208-220V

015363 Element Assembly 230-240V 024431 Fan Motor 024432 Capacitor 3uF 024503 Motor Timer 208-220V 024567 Motor Timer 220-240V 024433 Fan

Steam System 020851 Water Solenoid

021057 Spray Nozzle Assembly 021526 Water Inlet Elbow 021527 Washer

Doo

024784 Door Seal (Side) 024785 Door Seal (Top/Bottom) 020082 Top Hinge 020083 Bottom Hinge 024809 Roller Catch 017905 Door Bush

021468 Door Handle (E32M) 024599 Door Handle Bracket (E32M) 024844 Door Outer Glass (E32M) 002340 Door Inner Glass (E32M)

024713 Door Handle (E32MS) 023063 Door Glass (E32MS)

Racks

015575 Oven Side Rack LH 015656 Fan Baffle 015168 Oven Rack

Stacking Kit

025856 E32M Double Stacking Kit 025856 E32M Double Stacking Kit on Castors 025856 E32MS Double Stacking Kit 025856 E32MS Double Stacking Kit on Castors

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10. ACCESSORIES

OVEN RACKS (PART NO 15168)

100 MM (FOUR INCH) FOOT OPTION (PART NO 13048)

25 MM (ONE INCH) FOOT OPTION (PART NO 13908)

DOUBLE STACKING KIT (PART NO 025856 - E32M) (PART NO 025857 - E32M ON CASTORS) (PART NO 025858 - E32MS) (PART NO 025859 - E32MS ON CASTORS)

A25 STAINLESS STEEL STAND

COOKIE KIT—SIX TRAY OPTION (PART NOS 17156 & 17157)

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11.1 MAIN ASSEMBLY

1315 14

11. PARTS DIAGRAMS

11 12

19 20

22 21

27 26

234

24 25 29

37 38 39 40

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36 3335

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Pos Part No. Description

1 024683 SIDE COVER RH 2 --------- GEAR TRAY (REFER SECTION 11.3) 3 024431 FAN MOTOR 4 024604 MOTOR MOUNTING PLATE 5 013520 OVEN LIGHT ASSEMBLY 003434 SILK GASKET 013521 LAMP - 40W 003002 LIGHT GLASS 6 024717 BAFFLE LOCATING PLATE 7 024478 FAN SHAFT SEAL 8 024433 FAN 9 024689 SIDE PANEL MOUNTING BRACKET 10 019213 SNAP BUSH 32mm 11 024702 WATER SOLENOID MOUNTING BRACKET 12 021619 REAR SERVICE PANEL 13 020851 WATER SOLENOID 14 020869 CONNECTOR

/8”F x ¼”COMP 15 021058 WATER TUBE / ELBOW ASSEMBLY 16 013215 BACKNUT 17 021057 SPRAY NOZZLE 18 014031 OVEN BAFFLE STUD 19 003397 SPACER 20 041405 SCREW ½” x

/16” 21 024760 VENT TUBE 50 010761 GROMMET 1½” RUBBER 22 015581 ELEMENT BRACKET 23 015360 ELEMENT ASSEMBLY (208-220V) 015363 ELEMENT ASSEMBLY (220-240V) 24 024785 TOP/BOTTOM DOOR SEAL 25 024784 LEFT/RIGHT DOOR SEAL 26 024672 LINTEL SUPPORT 27 004945 LINTEL ENAMELLED (E32M) 024847 LINTEL S/S (E32MS) 28 024803 ROLLER STRIKE TOP 29 024804 ROLLER STRIKE BOTTOM 30 013974 PHIAL GUARD 31 015575 SIDE RACK LH 32 015656 FAN BAFFLE 33 --------- CONTROL PANEL (REFER SECTION 11.2) 34 020082 TOP HINGE (ASSEMBLED WITH BUSH) 017905 BUSH 35 020083 BOTTOM HINGE (ASSEMBLED WITH BUSH) 017905 BUSH 36 --------- DOOR ASSEMBLY (REFER SECTION 11.4) 37 021638 PIN CIRCLIP 38 013610 BUSH 39 044210 SPIRE CLIP 40 021637 MICROSWITCH BUTTON 41 024791 MICROSWITCH ROD 42 017929 DAMPER ROD CLIP 43 024802 MICROSWITCH 44 013977 INSULATOR 45 024584 MICROSWITCH BRACKET 46 010761 GROMMET ø1½" RUBBER 47 021526 WATER INLET ELBOW 021527 WATER INLET WASHER 48 004924 OVEN LINER 49 013908 FOOT ASSEMBLY

/8”

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11.2 CONTROL PANEL ASSEMBLY

11.2.1 E32M Control Panel

1817 19 20

13 12 1011

Pos Part No. Description

1 004953 CONTROL PANEL BAKBAR °C 004954 CONTROL PANEL BLUE SEAL °C 2 021473 POWER SWITCH 3 020849 INDICATOR LIGHT 4 021472 THERMOSTAT KNOB 5 020823 TIMER KNOB 6 021476 ROAST N HOLD SWITCH 7 021474 STEAM SWITCH 8 024773 LIGHT SWITCH 9 024694 CONTROL PANEL HOOK 10 018223 HOLD THERMOSTAT 11 021538 HOLD STAT BRACKET 12 018209 HOLD STAT LABEL 13 018224 HOLD STAT KNOB 14 021442 TIMER MOUNTING PANEL 15 011419 3 HOUR TIMER (50Hz) 011983 3 HOUR TIMER (60Hz) 16 021534 RELAY 17 011794 BUZZER 18 024703 BUZZER/RELAY BRACKET 19 011760 60 MINUTE TIMER 20 024774 THERMOSTAT

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11.2.2 E32MS Control Panel

1918 20 21

14 13 1112

Pos Part No. Description

1 024805 CONTROL PANEL ST/ST 2 024775 OVERLAY BAKBAR °C 024776 OVERLAY BLUE SEAL °C 024777 OVERLAY MOFFAT °F 3 021473 POWER SWITCH 4 020849 INDICATOR LIGHT 5 021472 THERMOSTAT KNOB 6 020823 TIMER KNOB 7 021476 ROAST N HOLD SWITCH 8 021474 STEAM SWITCH 9 024773 LIGHT SWITCH 10 024694 CONTROL PANEL HOOK 11 018223 HOLD THERMOSTAT 12 021538 HOLD STAT BRACKET 13 018209 HOLD STAT LABEL 14 018224 HOLD STAT KNOB 15 021442 TIMER MOUNTING PANEL 16 011419 3 HOUR TIMER (50Hz) 011983 3 HOUR TIMER (60Hz) 17 021534 RELAY 18 011794 BUZZER 19 024703 BUZZER/RELAY BRACKET 20 011760 60 MINUTE TIMER 21 024774 THERMOSTAT 50-320°C

3 45

4 6

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11.3 GEAR PLATE ASSEMBLY

4 5

Pos Part No. Description

1 024772 GEAR TRAY 2 014185 MAIN TERMINAL BLOCK 3 024567 MOTOR TIMER 240V 024503 MOTOR TIMER 220V 4 015966 CONTACTOR 5 024432 CAPACITOR 3µF 6 002441 INSULATOR 7 002138 CABLE CLAMP

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11.4 DOOR ASSEMBLY

11.4.1 E32M Glass Door Assembly

7 8986

5 3 4 1 12 13

Pos Part No. Description

1 024809 ROLLER CATCH ASSEMBLY 2 004928 DOOR INNER ENAMELLED 3 024602 DOOR TRIM BOTTOM 4 090225 GLASS SEAL EXTRUSION (1.14m) 5 020083 BOTTOM HINGE ASSEMBLY 6 090201 GLASS SEAL EXTRUSION (1.74m) 7 024844 DOOR OUTER GLASS 8 004452 GLASS CLAMP ANGLE PAINTED 9 002340 DOOR INNER GLASS 10 024601 DOOR TRIM TOP 11 020082 TOP HINGE ASSEMBLY 12 021468 DOOR HANDLE 13 024599 DOOR HANDLE BRACKET

SA1586 DOOR COMPLETE (EXCLUDES HANDLE & BRACKET)

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11.4.2 E32MS Stainless Steel Door Assembly

Pos Part No. Description

1 024809 ROLLER CATCH ASSEMBLY 2 020083 BOTTOM HINGE ASSEMBLY 3 024605 GLASS CLAMP ANGLE 4 023063 DOOR WINDOW GLASS 5 090201 GLASS SEAL EXTRUSION (1.44m) 6 024845 DOOR OUTER PANEL 7 090201 GLASS SEAL EXTRUSION (1.44m) 8 020082 TOP HINGE ASSEMBLY 9 004957 DOOR INNER (ENAMELLED) 10 ---------- INSULATION 11 024713 DOOR HANDLE

SA1587 ST/ST DOOR COMPLETE

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11. SERVICE CONTACTS

AUSTRALIA

VICTORIA - MOFFAT PTY HEAD OFFICE AND MAIN WAREHOUSE 740 Springvale Road Tel (03) 9518 3888 Mulgrave VIC 3170 Fax (03) 9518 3838 Spare Parts Department Free Call 1800 337 963 Fax (03) 9518 3895 NEW SOUTH WALES - MOFFAT PTY Unit 8/142 James Ruse Drive Tel (02) 8833 4111 Rosehill NSW 2142 Spare Parts Free Call 1800 337 963 Fax (03) 9518 3895 QUEENSLAND - MOFFAT PTY 30 Prosperity Place Tel (07) 3630 8600 Geebung QLD 4034 Spare Parts Free Call 1800 337 963 Fax (03) 9518 3895 SOUTH AUSTRALIA - MOFFAT PTY 28 Greenhill Rd Tel (08) 8274 2116 Wayville SA 5034 Spare Parts Free Call 1800 337 963 Fax (03) 9518 3895 WESTERN AUSTRALIA - MOFFAT PTY PO Box 689 Tel (08) 9305 8855 Joondalup Business Centre WA 6027 Spare Parts Free Call 1800 337 963 Fax (03) 9518 3895

NATIONAL COVERAGE FOR 24 HOUR SERVICE OR MAINTENANCE DIAL

FREE CALL 1800 622 216 (AUSTRALIA ONLY)

CANADA

SERVE CANADA 22 Ashwarren Rd Tel 416-631-0601 Downview Fax 416-631-0315 Ontario M3J1Z5

NEW ZEALAND

CHRISTCHURCH - MOFFAT LTD 16 Osborne St Tel (03) 389 1007 PO Box 10-001 Fax (03) 389 1276 Christchurch Spare Parts Free Call 0800 MOFFAT (0800 66 33 28) Fax (03) 381 3616

AUCKLAND - MOFFAT LTD 4 Waipuna Road Tel (09) 574 3150 Mt Wellington Fax (09) 574 3159 Auckland Spare Parts Free Call 0800 MOFFAT (0800 66 33 28)

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UNITED KINGDOM

BLUESEAL LTD Units 6-7 Mount St Business Park Tel 0121 327 5575 Mount Street, Nechells Fax 0121 327 9711 Birmingham B7 5QU England

UNITED STATES OF AMERICA

MOFFAT INC. 3765 Champion Blvd Winston-Salem Tel 1800 551 8795 NC27115 Fax 336 661 9546

NATIONAL COVERAGE FOR SERVICE OR MAINTENANCE DIAL

FREE CALL 1800 551 8795 (USA ONLY)

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APPENDIX A. STACKING BASE STAND

Kit contents (refer diagram below):

Position Description Quantity

1 Stand side frame 2 2 Stand rail WA 2 3 M6 x 12 Hex head screw 12 4 5 6

/4” Spring washer 12

/8” x 1” Hex head screw 4

/8” Spring washer 4

2 6 5

Figure 1 - Non castor option illustrated

THE ELECTRICAL SUPPLY MUST BE DISCONNECTED PRIOR TO COMMENCEMENT

Procedure:

• Screw the stand rails (2) to the stand side frames (1), with three M6 hex head screws (3) and

/4” spring washers (4) at each end. (Refer to the illustration above).

• Tip the oven onto its back and remove the 1” or 4” feet screwed into the base.

• Screw the assembled stand onto the bottom of the oven using the four screws (5) and

/8” spring washers (6).

/8” x 1” hex

NOTE:

of the unit, and the direction lock only castors (green lock) are at the rear of the unit.

For units being installed on castors a suitable restraint chain must be fitted.

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APPENDIX B. DOUBLE STACKING KIT

Kit contents (refer diagram overleaf):

Position Description Quantity

1 Shroud front 1 2 Shroud sides 2 3 Shroud rear 1 4 Chimney 1 5 Chimney support 1 6 Flue duct 1 7 8 9 9

THE ELECTRICAL SUPPLIES TO BOTH OVENS MUST BE DISCONNECTED

A. Bottom Unit - E32/M/MS

• Assemble and fit the stand to the bottom unit (refer Appendix A).

/2” x 8A Pozi screws 20

/4” x 3/16” Phillips head screws 8

/8” x 3/8” Hex head screws 4

/8” Spring washers 4

PRIOR TO COMMENCEMENT

• Units manufactured prior to S/N 239683 (July 2002) only:

Unscrew the vent hood plate from the bottom oven. Remove and discard the hood

plate and spacer tubes. Replace the vent hood screws and completely screw in to secure the wrapper to the spacer tube.

• Position the shroud rear (3) (refer figure 2) on top of the bottom unit so that it is positioned correctly over the oven back. Position the flue duct (6) on the bottom unit so that it is positioned centrally in shroud rear flue cut-out and is flush with the oven back. Check that the oven vent is covered and mark the six hole positions (three down each side of the flue duct) on the oven wrapper.

• Drill six ø3.5mm (

• Apply a small amount of silicone sealant to the flue duct flanges and screw to the wrapper with six

/8”) holes in the oven wrapper where marked.

/2” x 8A pozi screws (7) along the top, and two at the rear.

B. Top Unit - E32/M/MS

• Tip the oven onto its back and remove the feet screwed into the base.

• Assemble the four sides of the shroud (shroud front (1), shroud sides x2 (2), and shroud rear (3)) with the

/16” screws (8) as illustrated. Do not fully tighten the screws

until the ovens are stacked.

• Screw the shroud assembly to the base of the top oven using the

/8” hex head screws and washers (9) so that all faces of the shroud are flush with the sides of the oven base. Be sure to have the large flange of the shroud rear at the back of the oven.

C. Stacking the Ovens

• Remove three screws along the top rear of the bottom oven.

• With two or three persons, lift the top oven onto the bottom oven and position so that the down folds on the shroud sides and rear all butt hard up around the sides and rear of the oven wrapper.

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• Secure the top unit into position by replacing the three screws along the rear of the oven.

• Drill three ø3.5mm (

/2” x 8A pozi screws (7).

/8”) holes along each side of the bottom oven and secure with six

• Position the chimney (4) on the rear of the units. Secure to the flue duct (6) and bottom unit with four to be drilled, ø3.5mm (

• Secure the top of the chimney to the top unit with the chimney support (5) and two x 8A pozi screws (7). (These holes may need to be drilled, ø3.5mm (

/2” x 8A pozi screws (7). (The holes in the bottom unit may need

/8”)).

/2”

• Ensure that all screws on the stacking kit are tightened.

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Moffat E32MS User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual