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-28- 

Revision 7/F3527 

© 

Moffat Ltd, November 2004 

6.1.4 FAN DOESN’T OPERATE 

Fan motor faulty 

Check the supply voltage across motor termi-
nals.  If there is no voltage then check the 
electrical connections of wiring. 
If voltage is correct then check the oven fan 
for free rotation.  Remove any obstruction. 
If fan is free to spin and the voltage at motor 
terminals is correct, then the motor is faulty—
replace. 
 

Fan switch faulty

 

Check that the thermostat has power to  
terminal 5 on switch body on the front of the 
thermostat when power switch is ON.  If no 
voltage check wiring,  check that terminal P5 
has power switched to it when the thermostat 
is turned on.  If no power to P5 then switch is 
faulty and thermostat complete with switch 
needs to be replaced. 

6.1.5 OVEN LIGHTS NOT ILLUMINATING—
DOOR OPEN (AUTOMATICALLY ON) 

No power to lights 

Check the supply voltage across lamp hous-
ing 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. 

6.1.6 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. 

6.1.7 NO WATER INJECTION / STEAM 

Steam 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 the 
solenoid. 

NOTE:

  Alternately, perform a continuity test 

across the terminals with the steam switch  
depressed.

 

 
Fault with water valve 

Check voltage supply across the water valve 

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. 

Microswitch 

com 

n.c. 

Figure 6.1.3 

Burner faulty

 

With burner removed (refer 6.3.22), inspect 
burner for leak holes in construction and  
deterioration in mesh surfaces.  Tears or  
corrosion holes in mesh will be evidence of 
faulty burner condition.  Replace burner if 
faulty. 

NOTE:

  Minor mesh surface buckling is  

normal, and will not necessitate burner 

 

replacement. 

6.1.3  BURNER NOISY 

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

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. 

Содержание 203926

Страница 1: ...1 Revision 7 F3527 Moffat Ltd November 2004 Applies to units from S N 40256 SERVICE MANUAL G32 CONVECTION OVEN Moffat Ltd June 2004...

Страница 2: ...2 Revision 7 F3527 Moffat Ltd November 2004 WARNING ALL INSTALLATION AND SERVICE REPAIR WORK MUST BE CARRIED OUT BY QUALIFIED PERSONS ONLY...

Страница 3: ...ill result SECTION PAGE NO 1 SPECIFICATIONS 5 2 INSTALLATION 7 3 OPERATION 11 3 1 Description of Controls 3 2 Explanation of Control System 4 MAINTENANCE 15 4 1 Cleaning 4 2 Routine Procedures 5 TROUB...

Страница 4: ...SSORIES OPTIONS 57 11 PARTS DIAGRAM 58 11 1 Main Assembly 11 2 Control Panel Assembly 11 3 Ignition Electrode Assembly 11 4 Gas Piping Assembly 12 SERVICE CONTACTS 69 APPENDIX A Ignition Box Replaceme...

Страница 5: ...ECIFICATIONS MODEL G32 LEGEND Electrical connection entry point Water entry BSP hose connection Gas connection entry point BSP female not USA Canada NPT female USA Canada only Dimensions shown in mill...

Страница 6: ...Phase 230 240 V AC 50 Hz 0 55A 1 Phase 220 240 V AC 60 Hz 0 7 A 1 Phase ELECTRICAL PLUG SPECIFICATION REQUIREMENTS Australia AS 2124 10 Amp 3 pin Canada NEMA 5 15 15 Amp 3 pin New Zealand AS 2124 10 A...

Страница 7: ...y grounded in accordance with local codes BEFORE CONNECTION TO POWER AND GAS SUPPLY Unpack and check unit for damage and report any damage to the carrier and dealer Report any deficiencies to your dea...

Страница 8: ...burner is running Turning the screw clockwise increases the pressure whilst turning counter clockwise decreases the pressure WATER CONNECTION A cold water supply should be fitted to the water inlet BS...

Страница 9: ...hat it is positioned correctly over oven back Position flue duct on bottom unit so that it is positioned centrally in shroud back flue cut out and is flush with oven back Check that the oven vent is c...

Страница 10: ...r with four remaining 3 8 x 8 Phillips screws supplied Figure 2 4 Rating Plate Figure 2 6 Units manufactured up to July 2002 The rating plate for the G32 convection oven is located at the bottom right...

Страница 11: ...oven while the button is depressed 1 POWER Depress to switch power on or off switch illuminates when power is on 5 ROAST TIMER 3 Hour roast timer Indicator illuminates when time up 0 reached and produ...

Страница 12: ...alve 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 the...

Страница 13: ...od a re ignition attempt will be started automatically If this is unsuccess ful the ignition will go to lock out mode NOTE Different voltage and market models have different ignition sequence and re i...

Страница 14: ...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...

Страница 15: ...e 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 OVEN...

Страница 16: ...AL DOOR SEALS Check for deterioration 12 months DOOR PIVOT BUSHES Check for wear 12 months DOOR CATCH Ensure that catch is adjusted such that the door closes properly 12 months WATER NOZZLE Check for...

Страница 17: ...or Burner ignition spark faulty Refer fault diagnosis 6 1 2 Burner flame not being sensed Refer fault diagnosis 6 1 2 Ignition transformer faulty 110V models only Refer fault diagnosis 6 1 2 Ignition...

Страница 18: ...and inspect for obstructions Refer service section 6 3 22 Check for obstructions Check for obstructions Check injector alignment Refer service section 6 4 9 BURNER NOISY BURNER BLOWBACK BURNER BACKFI...

Страница 19: ...Oven water nozzle blocked Fault with water valve Refer fault diagnosis 6 1 7 Steam switch faulty Refer fault diagnosis 6 1 7 Turn water on at water supply Remove clean or replace Refer service section...

Страница 20: ...2 Installation for correct setting procedure Clean Refer service section 6 3 21 Check appliance gas type NO THERMOSTAT HEATING INDICATOR Indicator faulty Refer fault diagnosis 6 1 13 Replace Refer ser...

Страница 21: ...ion 6 3 25 Fit correctly Refer installation section Adjust Refer service section 6 4 5 Replace Refer service section 6 3 26 DOOR SEAL LEAKS Door seal damaged Door seal incorrectly fitted Door catch se...

Страница 22: ...1 15 No Hold Indicator 30 6 1 16 Holding Temperature Incorrect 30 6 2 ACCESS 31 6 2 1 Control Panel 31 6 2 2 Service Panel Side Panel 31 6 2 3 Service Panel Rear Panels 31 6 2 4 Burner Access Panel 31...

Страница 23: ...6 3 26 Door Pivot Bushes 39 6 3 27 Stainless Steel Door Outer Glass 39 6 3 28 Stainless Steel Door Inner Glass 40 6 4 ADJUSTMENT CALIBRATION 40 6 4 1 Regulator Adjustment 40 6 4 2 Thermostat Calibrat...

Страница 24: ...s necessary Spark gap too large see the following section Cracked spark rod ceramic or carbon build up HT leads to spark electrode and earth broken deteriorated HT leads between ignition electrodes an...

Страница 25: ...lours yellow and blue Check voltage at transformer terminal block pre serial number 203927 or at yellow and blue lead connections on ignition control box With thermostat on calling for heat voltage sh...

Страница 26: ...ignition control boxes used on 220 240 volt model G32 s are operated from direct voltage supply from the thermostat hold thermostat circuit Correct ignition box operation should result in ignition box...

Страница 27: ...rates spark but burner doesn t ignite or if burner ignites but doesn t stay alight firstly check correct electrode assembly operation Refer fault diagnosis 6 1 2 Burner Ignition Spark Not Working If a...

Страница 28: ...oss the terminals with the light switch depressed 6 1 7 NO WATER INJECTION STEAM Steam switch faulty Check voltage to the bottom terminal of the switch If there is no voltage then check wiring With sw...

Страница 29: ...ECOVERY 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 t...

Страница 30: ...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 3 If the voltage is correct but the relay...

Страница 31: ...els 6 2 3 SERVICE REAR PANELS 2 Panel is now free to hinge at bottom When closing the panel ensure wires and capillary tube are clear of metal or other terminals Figure 6 2 1 2 Remove panel Figure 6 2...

Страница 32: ...lamp cover s 1 Hinge down control panel refer 6 2 1 2 Remove two screws holding microswitch to bracket 6 3 3 INDICATOR NEON LIGHT 1 With control panel open refer 6 2 1 remove the wires from the back...

Страница 33: ...ing timer 3 Withdraw and remove two screws holding buzzer to bracket 4 Transfer wires to new buzzer 5 Reassemble in reverse order Figure 6 3 5 Figure 6 3 6 2 From back push neon through front of panel...

Страница 34: ...b Two Screws 3 Transfer wires to new thermostat 4 Open oven door remove racks and fan baffle rack Loosen two screws securing thermostat phial bracket 5 Withdraw old thermostat phial through side of ov...

Страница 35: ...emove the rear access panel refer 6 2 3 3 To remove or replace solenoid disconnect water solenoid from oven water tube behind water solenoid with a 1 2 13mm spanner 4 Remove water solenoid from oven b...

Страница 36: ...Centre Nut 6 3 16 OVERTEMP THERMOSTAT UK UNITS ONLY 1 Open control panel refer 6 2 1 2 To reset firmly press reset button Figure 6 3 21 4 Remove wires from overtemp 5 Open oven door remove racks and f...

Страница 37: ...n in the gas line next to the manual gas valve 3 Transfer wires from old ignition box to the new one 4 Secure new ignition box to the oven with two screws 3 Disconnect wires earth at sensor flame sens...

Страница 38: ...anels 6 Disconnect the three leads from the gas control valve 7 Remove the gas valve and connected piping by drawing out through the side service panel 8 Replace and reassemble in reverse order Figure...

Страница 39: ...and refit it ensuring that the silicone rubber seals cover the outer edges of the glass Refit the trim panels Figure 6 3 37 Figure 6 3 38 6 3 25 DOOR SEALS 1 Open oven door 2 To remove hold at their c...

Страница 40: ...ove inner glass 6 3 28 STAINLESS STEEL DOOR INNER GLASS Figure 6 3 42 3 Replace with new glass and re assemble door 4 Refit door to the oven 6 4 1 REGULATOR ADJUSTMENT Figure 6 4 1 To change the gas t...

Страница 41: ...Screws Thermostat Shaft Fan Switch Calibration Nut Thermostat Figure 6 4 2 6 4 4 DOOR MICROSWITCH ADJUSTMENT 1 Open oven door 2 Open control panel refer 6 2 1 3 With fingers bend actuator arm of micr...

Страница 42: ...rom control panel 2 Open control panel refer 6 2 1 Loosen two screws on control panel holding 60 minute timer Two Screws 3 The timer can now be rotated as required to ensure that the buzzer sounds at...

Страница 43: ...43 Revision 7 F3527 Moffat Ltd November 2004 7 CIRCUIT SCHEMATICS 7 1 1 220 240V 50Hz UK ONLY FROM SERIAL NO 203927 For units pre serial number 203926 refer section 7 1 2...

Страница 44: ...44 Revision 7 F3527 Moffat Ltd November 2004 7 1 2 220 240V 50Hz UK ONLY TO SERIAL NO 203926 For units after serial number 203927 refer section 7 1 1...

Страница 45: ...45 Revision 7 F3527 Moffat Ltd November 2004 7 2 1 100 120V 60Hz USA CANADA FROM SERIAL NO 203927 For units pre serial number 203926 refer section 7 2 2...

Страница 46: ...46 Revision 7 F3527 Moffat Ltd November 2004 7 2 2 100 120V 60Hz USA CANADA TO SERIAL NO 203926 For units after serial number 203927 refer section 7 2 1...

Страница 47: ...BSP FEMALE GAS WATER 3 8 inch GAS REGULATOR CONNECTIONS ELECTRICAL YELLOW BLUE GREEN BROWN NEUTRAL SPARK SENSOR WATER INJECTOR IGNITION BOX HEATING 6 1Hr TIMER 3 4 1 2 BUZZER B POWER 5 4 HOLD LIGHTS...

Страница 48: ...48 Revision 7 F3527 Moffat Ltd November 2004 7 3 2 220 240V 50Hz NOT UK TO SERIAL NO 203926 For units after serial number 203927 refer section 7 3 1...

Страница 49: ...44 30 23 45 1 2 OVERTEMP 2 MAINS TERMINAL BLOCK EARTH NEUTRAL PHASE 44 50Hz 3 1 4 PART OF CONTROL PANEL SUB ASSEMBLY GROMMET POSITION OR FIT AT STAGE 2 8 6 5 5 3 3 9 15 16 21 23 24 41 27 52 52 51 51...

Страница 50: ...50 Revision 7 F3527 Moffat Ltd November 2004 8 1 2 220 240V 50Hz UK ONLY TO SERIAL NO 203926 For units after serial number 203927 refer section 8 1 1...

Страница 51: ...51 Revision 7 F3527 Moffat Ltd November 2004 8 2 1 100 120V 60Hz USA CANADA FROM SERIAL NO 203927 For units pre serial number 203926 refer section 8 2 2...

Страница 52: ...52 Revision 7 F3527 Moffat Ltd November 2004 8 2 2 100 120V 60Hz USA CANADA TO SERIAL NO 203926 For units after serial number 203927 refer section 8 2 1...

Страница 53: ...3 T4 T6 T5 T10 T9 T15 T16 T12 T13 T14 49 53 26 26 44 30 23 45 50Hz 3 1 4 PART OF CONTROL PANEL SUB ASSEMBLY GROMMET POSITION OR FIT AT STAGE 2 8 6 5 5 3 3 9 15 16 21 23 24 41 27 52 52 51 51 LIGHT LIGH...

Страница 54: ...54 Revision 7 F3527 Moffat Ltd November 2004 8 3 2 220 240V 50Hz NOT UK TO SERIAL NO 203926 For units after serial number 203927 refer section 8 3 1...

Страница 55: ...23 Roast n Hold Timer 110V 021472 Roast n Hold Timer Knob 021474 Switch Steam Light 021534 Relay Roast n Hold 220 240V 021535 Relay Roast n Hold 110V 018223 Hold Thermostat 003004 Microswitch 003002 O...

Страница 56: ...Electrodes From S N 218596 Also used to replace 015316 spark earth electrodes 022901 Spark Earth Electrodes From S N 47875 to S N 218595 022909 Ignition Electrode Kit Up To Serial Number 218595 SA1021...

Страница 57: ...Moffat Ltd November 2004 10 ACCESSORIES OVEN RACKS PART NO 015168 DOUBLE STACKING KIT PART NO 021545 COOKIE KIT SIX TRAY OPTION PART NOS 017156 017157 STAINLESS STEEL DOOR OPTION PART NO SA1060 A25 S...

Страница 58: ...58 Revision 7 F3527 Moffat Ltd November 2004 11 PARTS DIAGRAMS 11 1 MAIN ASSEMBLY...

Страница 59: ...MOTOR MOUNTING BOX 18 015947 MOTOR SPACER STUD 19 014727 SIDE INSULATION PANEL 20 013520 OVEN LIGHT ASSY 240V 019482 OVEN LIGHT ASSY 110V USA CANADA 013521 LAMP 40W 240V 015825 LAMP 40W 110V USA CANA...

Страница 60: ...015275 LEG TUBE WA PLATED 010990 ADJUSTABLE FOOT 64 015575 SIDE RACK L H 65 015168 OVEN RACK 66 015656 FAN BAFFLE 67 014031 OVEN BAFFLE STUD 019367 OVEN BAFFLE STUD UK ONLY 68 015930 BAFFLE LOCATING B...

Страница 61: ...61 Revision 7 F3527 Moffat Ltd November 2004 11 2 CONTROL PANEL ASSEMBLY Mounted on item 6 Main assembly...

Страница 62: ...AFFIX 018209 LABEL 8 018223 HOLD THERMOSTAT 9 011419 TIMER 3 Hr 240V 50 Hz 011983 TIMER 3 Hr 240V 60 Hz 015823 TIMER 3 Hr 110V USA CANADA ONLY 10 021442 TIMER MOUNTING PANEL 11 016579 HINGE 12 021474...

Страница 63: ...IGNITION ELECTRODE ASSEMBLY COMPLETE 1 024105 IGNITION ELECTRODE BRACKET 2 024106 ELECTRODE MOUNTING BRACKET 3 024127 SPARK ELECTRODE 4 022902 FLAME ELECTRODE 5 041022 SCREW 6 045011 WASHER FLAT 7 04...

Страница 64: ...5 refer section 11 3 1 16 1 0 16 5 2 0 8mm 64 1 8 1 0 5 3mm 2 2 1 65mm ELECTRODE SETTINGS Pos Part No Description SA 1021 IGNITION ELECTRODE ASSEMBLY COMPLETE OBSOLETE REPLACE WITH 022909 ELECTRODE AS...

Страница 65: ...cription 015115 IGNITION ELECTRODE ASSEMBLY COMPLETE OBSOLETE REPLACE WITH 022909 ELECTRODE ASSEMBLY UPGRADE KIT 1 015316 IGNITION SPARK ROD 2 016051 ELECTRODE EXTENSION 3 015315 FLAME SENSOR USE 0229...

Страница 66: ...PLACE WITH 022909 ELECTRODE ASSEMBLY UPGRADE KIT 1 015315 FLAME SENSOR OBSOLETE REPLACE WITH 022902 2 018732 IGNITION ELECTRODE 3 018759 IGNITION ELECTRODE BRACKET 0 1 4mm 95mm 60mm 11mm ELECTRODE SET...

Страница 67: ...67 Revision 7 F3527 Moffat Ltd November 2004 11 4 GAS PIPING ASSEMBLY...

Страница 68: ...UBE x 3 8 BSP FEMALE 11 032170 INJECTOR 1 70 mm LPG PROPANE GAS 032155 INJECTOR 1 55 mm G31 PROPANE GAS UK ONLY 032270 INJECTOR 2 70 mm NATURAL GAS 032260 INJECTOR 2 60 mm G20 NATURAL GAS UK ONLY 12 0...

Страница 69: ...8 71 Fullarton Rd Tel 08 8431 0522 Kent Town SA 5067 Spare Parts Free Call 1800 337 963 WESTERN AUSTRALIA MOFFAT PTY PO Box 689 Tel 08 9305 8855 Joondalup Business Centre WA 6027 Spare Parts Free Cal...

Страница 70: ...7 Mount St Tel 0121 327 5575 Business Park Fax 0121 327 9711 Birmingham B7 5QU England UNITED STATES OF AMERICA MOFFAT INC 3765 Champion Blvd Winston Salem Tel 1 800 551 8795 NC27115 Fax 336 661 9546...

Страница 71: ...EMENT KITS 1 2 3 4 5 1 5 4 3 2 a Turn off power and disconnect from electrical supply Open control panel b Remove ignition box mounting panel assembly 2 screws c Remove overtemp bracket c w overtemp d...

Страница 72: ...72 Revision 7 F3527 Moffat Ltd November 2004 WIRING SCHEMATIC FOR WIRE RE CONNECTION TO REPLACEMENT IGNITION BOX ASSEMBLY ILLUSTRATION OF FITTED REPLACEMENT IGNITION BOX...

Страница 73: ...sformer overload switch to the rear e Rewire ignition box as described below 1 Remove green wire 1 from old ignition box Remove terminal strip wire and connect to terminal block 2 Remove red wire 2 fr...

Страница 74: ...74 Revision 7 F3527 Moffat Ltd November 2004 ILLUSTRATION OF FITTED REPLACEMENT IGNITION BOX WIRING SCHEMATIC FOR WIRE RE CONNECTION TO REPLACEMENT IGNITION BOX ASSEMBLY...

Страница 75: ...sing internal Flashing light confirms lockout condition If light is on steady electrical fault exists Minimum Flame Current 1 A From serial number 203927 Make Fenwal Type 2460D 506 023 Case Colour Gre...

Страница 76: ...ke Scarico Ispracontrols Type 33100211 33000211 Case Colour Blue Voltage 220 240 Vac Ignition Trial Period 7 Seconds Pre purge 0 seconds Ignition Retries None Re ignition Attempts None 33100211 1 3300...

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