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Revision 3/F3542

7. ELECTRICAL CIRCUIT SCHEMATIC

7.1 E25

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Summary of Contents for E25

Page 1: ... 1 Revision 3 F3542 SERVICE MANUAL E25 CONVECTION OVEN ...

Page 2: ... 2 Revision 3 F3542 WARNING ALL INSTALLATION AND SERVICE REPAIR WORK MUST BE CARRIED OUT BY QUALIFIED PERSONS ONLY ...

Page 3: ... a full explanation as to how and what effects will result SECTION PAGE NO 1 SPECIFICATIONS 5 2 INSTALLATION 7 3 OPERATION 8 3 1 Description of Controls E25 3 2 Description of Controls E25B 3 3 Explanation of Control System 4 MAINTENANCE 12 4 1 Cleaning 4 2 Routine Procedures 5 TROUBLE SHOOTING GUIDE 13 6 SERVICE PROCEDURES 16 6 1 Fault Diagnosis 6 2 Access 6 3 Replacement 6 4 Adjustment Calibrati...

Page 4: ...542 10 ACCESSORIES OPTIONS 35 11 PARTS DIAGRAM 36 11 1 Main Assembly E25 11 2 Main Assembly E25B 11 3 Control Panel Assembly E25 11 4 Control Panel Assembly E25B 12 SERVICE CONTACTS 42 APPENDIX A DOUBLE STACKING KIT 44 ...

Page 5: ...LAN SIDE 1 SPECIFICATIONS MODEL E25 E25B LEGEND Electrical connection entry point Dimensions shown in millimetres Dimensions in inches shown in brackets 45 1 75 16 9 429 111 4 4 395 15 5 600 23 6 124 4 9 625 24 6 48 1 9 720 28 4 ...

Page 6: ...th 370 mm 14 5 ELECTRICAL SUPPLY SPECIFICATION OPTIONS E25 100 120V ac 60Hz 13 3A 1 6kW 120V 220 240V ac 50 60Hz 8 5A 2 05kW 240V E25B 100 120V ac 60Hz 17 1A 2 05kW 120V ELECTRICAL PLUG SPECIFICATION REQUIREMENTS E25 Australia 3 pin 250V 10A AS NZ 3112 Canada 3 pin 120V 15A NEMA 6 15 New Zealand 3 pin 250V 10A AS NZ 3112 United Kingdom 3 pin 250V 13A fused BS 1363A United States 3 pin 120V 15A NEM...

Page 7: ...RNING THIS APPLIANCE MUST BE GROUNDED BEFORE USE Operate the oven for about 1 hour at 200 C 400 F to remove any fumes or odours which may be present ELECTRICAL CONNECTION E25 convection ovens are supplied with pre fitted cords Ensure unit is fitted with the correct cord and plug for the installation Refer specifications section Should changing of the cord be necessary gain access to the electrical...

Page 8: ...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 LIGHT SWITCH Push switch to activate light Oven light illuminates while button depressed 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 4 3...

Page 9: ...emperature BROIL POSITION E25B Only The BROIL indicator will illuminate indicating that the BROIL function has been set The HEATING indicator will also illuminate whenever the ele ments are on 3 BAKE TIMER 1 Hour bake timer Indicator illuminates when time up 0 reached and buzzer sounds 4 LIGHT SWITCH Push switch to activate light Oven light illuminates while button depressed 3 2 DESCRIPTION OF CON...

Page 10: ... which can be set to a required cooking temperature The E25B also features a Broil position to provide top browning or broiling in the oven The E25 has an element coiled around the circulation fan in the rear of the oven Power to the element is provided directly from the thermostat The control panel indicator light above the thermostat knob cycles on and off with the thermostat to indicate when th...

Page 11: ...ue to operate with the oven door open and fan off When the thermostat cycles On it provides power to the coil of the heating relay When the heating relay switches the normally open contacts on both poles close However with the thermostat in this position power is only being provided to the pole feeding the broil element so only the broil element cycles On When the thermostat cycles Off it isolates...

Page 12: ... pin at front of side and pull rack forward to remove To replace engage rack in rear holes swing towards side of oven to engage in front hole and replace thumbscrew FAN BAFFLE To remove undo thumbscrew anti clockwise rotation at top of baffle and remove Lift baf fle out from rear of oven by tilting forward while lifting out of location studs at baffle base Replace in reverse order 4 MAINTENANCE OV...

Page 13: ...iring Close door Adjust Refer service section 6 4 3 Replace Refer service section 6 3 2 Replace Refer service section 6 3 11 Check and tighten any loose wiring OVEN LIGHT NOT ILLUMINATING DOOR OPEN OVEN LIGHT NOT ILLUMINATING DOOR CLOSED Blown bulb No power to light Refer fault diagnosis 6 1 3 Blown bulb Light switch faulty Refer fault diagnosis 6 1 4 Replace Refer service section 6 3 1 Correct fa...

Page 14: ...NTROL Thermostat faulty Refer fault diagnosis 6 1 8 Heating relay faulty E25B only Refer fault diagnosis 6 1 8 Replace Refer service section 6 3 7 Replace Refer service section 6 3 8 SLOW RECOVERY Overloading of oven Electrical supply incorrect Fan not working Thermostat calibration Refer fault diagnosis 6 1 9 Reduce oven loading Check supply voltage is as per rating plate voltage Check fan operat...

Page 15: ...y Refer fault diagnosis 6 1 14 Replace Refer service section 6 3 8 DOOR DOES NOT CLOSE Tray in way of door Door seal obstruction Door hinges worn Door hinge counter brackets worn Correctly position tray in rack Correctly install door seal Refer service section 6 3 14 Replace Refer service section 6 3 16 Replace Refer service section 6 3 17 DOOR SEAL LEAKS Door seal damaged Door seal incorrectly fi...

Page 16: ... Mode 21 6 1 15 Power Switch Does Not Turn Unit Off 21 6 2 ACCESS 22 6 2 1 Control Panel 22 6 2 2 Service Panel Rear Panel 22 6 2 3 Baffle 22 6 2 4 E25 Control Panel Rear 22 6 2 5 E25B Control Panel Rear 22 6 3 REPLACEMENT 23 6 3 1 Light Bulb Glass 23 6 3 2 Door Microswitch 23 6 3 3 Indicator Neon Light 23 6 3 4 Power Lights 23 6 3 5 Buzzer 23 6 3 6 Bake Timer 24 6 3 7 Thermostat 24 6 3 8 Relay 24...

Page 17: ...Revision 3 F3542 6 4 ADJUSTMENT CALIBRATION 28 6 4 1 Thermostat Calibration E25 28 6 4 2 Thermostat Calibration E25B 28 6 4 3 Door Microswitch Adjustment 29 6 4 4 60 Minute Timer Zero Position Adjustment 29 ...

Page 18: ...door closed check the supply voltage across motor terminals If there is no voltage then check the electrical connections of sup ply 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 supply is correct then the motor is faulty replace 6 1 3 OVEN LIGHT NOT ILLUMINATING DOOR OPEN No power to light Check the supply volta...

Page 19: ... 200 C or 400 F With door closed check the voltage out of terminal 2 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 elements Heating relay faulty E25B Set thermostat to 200 C or 400 F With door closed check voltage to terminal A of heating relay If no voltage check wiring If correct volta...

Page 20: ...9 check wiring If voltage at 9 correct then check voltage at terminal 6 If no voltage at 6 then relay is faulty replace If voltage at 6 is correct check voltage at terminal 7 If no voltage at 7 then check wiring If voltage at 7 is correct then check voltage at terminal 4 If no voltage at 4 then relay is faulty replace Heating relay faulty Check voltage at terminal A of heating relay If no voltage ...

Page 21: ...then the switch is faulty replace With switch unlatched and door open check voltage across terminal 2 to terminal 3 or 4 If there is voltage then the switch is faulty replace Alternatively perform a continuity test across terminals 1 and 2 This should show an open circuit when the switch is unlatched NOTE When power switch is unlatched it should not be illuminated if operating correctly Broil rela...

Page 22: ...ut bottom of control panel and drop down to disengage tabs at top of control panel Figure 6 2 1 2 Remove panel Figure 6 2 2 3 Remove baffle Figure 6 2 3 6 2 4 E25 CONTROL PANEL REAR Figure 6 2 4 6 2 5 E25B CONTROL PANEL REAR Buzzer Power Switch Heating Indicator Broil Indicator Thermostat Bake Time Up Indicator Light Switch Bake Timer One Screw Figure 6 2 5 Buzzer Power Switch Heating Indicator Th...

Page 23: ...Two Screws 6 3 5 BUZZER 1 Remove control panel refer 6 2 1 2 Remove two screws holding buzzer to panel 4 Transfer wires to new buzzer 5 Reassemble in reverse order Figure 6 3 5 2 Unscrew bulb out of fitting 3 Screw in replacement bulb 4 Replace lamp cover Lamp Cover Figure 6 3 1 4 Transfer wires to new micro switch and re assemble 5 Adjust microswitch refer 6 4 2 Figure 6 3 2 2 From back push neon...

Page 24: ...oven 6 Insert new thermostat 7 Re assemble in reverse order 3 Transfer wires to new thermostat 4 Remove service panel refer 6 2 2 and from inside of oven loosen two screws holding thermostat phial bracket Figure 6 3 7 Figure 6 3 8 1 With service panel and baffle removed refer 6 2 2 and 6 2 3 remove the wires from the element s 2 Unscrew the element from inside the oven 3 Pull element carefully to ...

Page 25: ... washer behind fan and one washer in front 3 Lift door away from the oven and place on a flat surface 4 Undo two screws and remove the trim from the bottom of the door Carefully withdraw the glass Figure 6 3 11 Figure 6 3 12 Screws 4 3 Remove three screws holding motor to bracket and remove motor 4 Replace and re assemble in reverse order 5 Ensure wire connections are correct fig 6 3 12 Figure 6 3...

Page 26: ...t Place the window spacer in position and crimp the retaining lugs over to hold the glass in place Refit outer glass as above Two Screws 6 3 15 DOOR HANDLE 1 Remove the door refer 6 3 12 2 Undo two screws and remove the top trim and handle assembly taking care not to dislodge the outer glass 3 Undo two bolts securing handle to top trim Replace handle and reassemble in reverse order 6 3 16 DOOR HIN...

Page 27: ...o screws securing insulation panel to oven liner Two screws Insulation panel Figure 6 3 25 8 screws 7 Remove wrapper 8 Undo two screws securing left hand counter bracket to oven and remove Replace ensuring that bracket is installed with roller to top Figure 6 3 22 Figure 6 3 24 10 Prise open the insulation panel to allow access to the right hand counter bracket Undo two screws securing bracket and...

Page 28: ...NSURE THERMOSTAT IS IN THE MAX TEMPERATURE POSITION BEFORE CARRYING OUT ANY ADJUSTMENT 6 4 ADJUSTMENT CALIBRATION 6 4 1 THERMOSTAT CALIBRATION E25 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 MAX TEMPERATURE POSITION BEFORE CARRYING OUT A...

Page 29: ...n thermostat calibration 10 Repeat procedure if necessary Figure 6 4 5 Calibration Nut 6 4 3 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 6 6 4 4 60 MINUTE TIMER ZERO POSITION ADJUSTMENT 1 Remove 60 minute timer knob by pulling it firmly a...

Page 30: ... 30 Revision 3 F3542 7 ELECTRICAL CIRCUIT SCHEMATIC 7 1 E25 ...

Page 31: ... 31 Revision 3 F3542 7 2 E25B ...

Page 32: ... 32 Revision 3 F3542 8 ELECTRICAL WIRING DIAGRAM 8 1 E25 ...

Page 33: ... 33 Revision 3 F3542 8 2 E25B ...

Page 34: ... Oven Lamp Assembly 110V 013521 Oven Lamp 220 240V 40W Miniature Edison Screw Oven Lamp 110V 40W Edison Screw MOTOR ELEMENTS 023071 Oven Fan Element E25 only 240 volt 023069 Oven Fan Element E25 only 110 volt 023072 Oven Top Element E25B only 110 volt 023070 Oven Fan Element E25B only 110 volt 023215 Fan Motor c w Fan 220 240V 023214 Fan Motor c w Fan 110V DOOR 023099 Oven Door Seal Strip Side 014...

Page 35: ... F3542 10 ACCESSORIES OVEN RACKS PART NO 12809 SCONE TRAYS PART NO 02083 100 MM FOUR INCH FOOT OPTION PART NO 13048 A25 STAINLESS STEEL STAND 25 MM ONE INCH FOOT OPTION PART NO 13908 DOUBLE STACKING KIT PART NO 24290 ...

Page 36: ... 36 Revision 3 F3542 11 PARTS DIAGRAMS 11 1 MAIN ASSEMBLY E25 ...

Page 37: ...ANEL 21 023088 BODY 22 013908 FOOT 23 004850 CONTROL PANEL MOFFAT 004851 CONTROL PANEL BAKBAR 24 023071 FAN ELEMENT 240V 24 023069 FAN ELEMENT 110V 25 023382 BAFFLE RA 26 023217 DOOR HINGE 27 023282 BOTTOM TRIM 28 023091 GLASS CLAMP ANGLE 29 023063 INNER GLASS 30 023062 OUTER GLASS 31 023228 INNER GLASS SEAL 32 023230 OUTER GLASS SEAL 33 004854 DOOR INNER PANEL 34 021468 DOOR HANDLE 35 023281 TOP ...

Page 38: ... 38 Revision 3 F3542 11 2 MAIN ASSEMBLY E25B 110V ONLY ...

Page 39: ...8 BODY 23 013908 FOOT 24 004849 CONTROL PANEL 25 023070 FAN ELEMENT 110V 26 023382 BAFFLE RA 27 023389 BOTTOM BAFFLE 28 023217 DOOR HINGE 29 023282 BOTTOM TRIM 30 023091 GLASS CLAMP ANGLE 31 023063 INNER GLASS 32 023062 OUTER GLASS 33 023228 INNER GLASS SEAL 34 023230 OUTER GLASS SEAL 35 004854 DOOR INNER PANEL 36 023384 BAFFLE PIVOT WA 37 021468 DOOR HANDLE 38 023281 TOP TRIM 39 023090 HANDLE STI...

Page 40: ...EAL 004850 CONTROL PANEL MOFFAT 51 021473 POWER SWITCH 240V 51 021514 POWER SWITCH 110V 52 020849 NEON INDICATOR 240V 023857 NEON INDICATOR 110V 53 021472 KNOB 54 020823 KNOB 55 021474 LIGHT SWITCH 56 011794 BUZZER 240V 56 015822 BUZZER 110V 57 023212 TIMER COUPATAN TO S N 228661 011760 TIMER DIEHL FROM S N 228662 58 023311 THERMOSTAT ...

Page 41: ...NLY Pos Part No Description 24 004849 CONTROL PANEL MOFFAT 54 021514 POWER SWITCH 110V 55 023857 NEON 110V 56 020823 KNOB 57 021474 LIGHT SWITCH 58 015822 BUZZER 110V 59 023212 TIMER COUPATAN TO S N 228661 011760 TIMER DIEHL FROM S N 228662 60 017121 THERMOSTAT ...

Page 42: ...d Tel 08 8431 0522 Kent Town SA 5067 Spare Parts Free Call 1800 337 963 WESTERN AUSTRALIA PO Box 689 Tel 08 9305 8855 Joondalup Business Centre WA 6027 Spare Parts Free Call 1800 337 963 NATIONAL COVERAGE FOR 24 HOUR SERVICE OR MAINTENANCE DIAL FREE CALL 1800 622 216 AUSTRALIA ONLY CANADA Lessard Agencies Limited Tel 416 766 2764 PO Box 97 Fax 416 760 0394 Stn D Free Call 1 888 537 7273 Toronto ON...

Page 43: ...el 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 NATIONAL COVERAGE FOR SERVICE OR MAINTENANCE DIAL FREE CALL 1800 551 8795 USA ONLY ...

Page 44: ...ere marked 3 Secure the vent duct to the wrapper with five 3 8 x 8A Pozi screws into these holes 4 Undo the two screws securing the top lintel to the bottom oven and remove the lintel Remove the three screws from the top rear of the oven wrapper B Top Unit 1 Remove all trays and racks from oven Tip oven upside down and remove the feet screwed into the base 2 Remove the six screws three each side s...

Page 45: ...p and two screws NOTE for units manufactured before serial number 224323 the mounting holes for the saddle clamp will need to be drilled Holding the vent pipe vertical position the saddle clamp over the vent pipe approximately 75 mm below the top of the oven and drill two ø3 5mm holes 4 Using pliers or similar knock out the notches at the top and bottom of the rear cover panel that allow for the v...

Page 46: ... 46 Revision 3 F3542 ...

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