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SERVICE

MANUAL

E27 CONVECTION OVEN

Revision 1/F3563
September, 2001

Manual P/N M0ME27

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Summary of Contents for Moffat E27

Page 1: ...SERVICE MANUAL E27 CONVECTION OVEN Revision 1 F3563 September 2001 Manual P N M0ME27 ...

Page 2: ...ange 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 8 3 1 Description of Controls 3 2 Explanation of Control System 4 MAINTENANCE 10 4 1 Cleaning 4 2 Routine Procedures 5 TROUBLE SHOOTING GUIDE 11 6 SERVICE PROCEDURES 14 6 1 Fault Diagnosis 6 2 Access 6 3 Replacement 6 4 Adjustment Calibration 7 ELECTRICAL...

Page 3: ... 4 Revision 1 F3563 11 PARTS DIAGRAM 31 11 1 Main Assembly 11 2 Control Panel Assembly 12 SERVICE CONTACTS 35 APPENDIX A DOUBLE STACKING KIT 37 ...

Page 4: ... 120 E 1 E 1 430 725 395 45 236 E 1 37 2 31 1 3 0 4 7 28 5 1 75 9 3 15 6 16 9 FRONT PLAN SIDE 1 SPECIFICATIONS MODEL E27 LEGEND Electrical connection entry point Dimensions shown in millimetres Dimensions in inches shown in brackets ...

Page 5: ...7 8 Oven Volume 0 10 m 3 5 ft OVEN RACK SIZE Width 660 mm 26 Depth 460 mm 18 ELECTRICAL SUPPLY SPECIFICATION OPTIONS 208 220V ac 50 60Hz 14 4A 3 0kW 208V 230 240V ac 50 60Hz 12 5A 3 0kW 240V ELECTRICAL PLUG SPECIFICATION REQUIREMENTS Australia 3 pin 250V 15A AS NZ 3112 Canada 3 pin 250V 15A NEMA 6 15 New Zealand 3 pin 250V 15A AS NZ 3112 United Kingdom 3 pin 250V 13A fused BS 1363A United States 3...

Page 6: ...MUST BE GROUNDED ELECTRICAL CONNECTION E27 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 connection terminal block grounding lug and strain relief by removing the back panel four screws Figure 2 1 WARNING ALL INSTALLATIO...

Page 7: ...en 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 2...

Page 8: ...king temperature The E27 has an element coiled around the circulation fan in the rear of the oven Power to the element is provided via a heating power relay located at the rear of the oven When the thermostat calls for heat it energises this relay which switches power to the fan element The control panel indicator light above the thermostat knob cycles on and off with the thermostat to indicate wh...

Page 9: ...ward 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 loosen thumbscrews anti clockwise rotation at top of baffle Lift baffle to disengage from locating studs and thumb screws then pull forward to remove Replace in reverse order 4 MAINTENANCE OVEN SEALS To remove hold at their centre point and pull forward...

Page 10: ... timer faulty Refer fault diagnosis 6 1 2 Motor capacitor faulty Refer fault diagnosis 6 1 2 Wiring Close door Clear obstruction Adjust Refer service section 6 4 2 Replace Refer service section 6 3 2 Replace Refer service section 6 3 11 Replace Refer service section 6 3 12 Replace Refer service section 6 3 13 Check and tighten any loose wiring FAN ONLY OPERATES IN ONE DIRECTION Motor timer faulty ...

Page 11: ...ING No power to thermostat Refer fault diagnosis 6 1 7 Thermostat faulty Refer fault diagnosis 6 1 7 Fan element not working Refer fault diagnosis 6 1 7 Heating power relay faulty Refer fault diagnosis 6 1 7 Identify fault and correct Replace Refer service section 6 3 7 Replace Refer service section 6 3 9 Replace Refer service section 6 3 8 NO TEMPERATURE CONTROL Thermostat faulty Refer fault diag...

Page 12: ...counter brackets worn Correctly position tray in rack Correctly install door seal Refer service section 6 3 16 Replace Refer service section 6 3 18 Replace Refer service section 6 3 19 DOOR SEAL LEAKS Door seal damaged Door seal incorrectly fitted Replace Refer service section 6 3 16 Correctly install door seal Refer service section 6 3 16 ...

Page 13: ...2 Service Panel Rear Panel 19 6 2 3 Baffle 19 6 2 4 E27 Control Panel Rear 19 6 3 REPLACEMENT 20 6 3 1 Light Bulb Glass 20 6 3 2 Door Microswitch 20 6 3 3 Indicator Neon Light 20 6 3 4 Power Lights 20 6 3 5 Buzzer 20 6 3 6 Bake Timer 21 6 3 7 Thermostat 21 6 3 8 Relay 21 6 3 9 Element 21 6 3 10 Fan 22 6 3 11 Motor 22 6 3 12 Fan Motor Timer 22 6 3 13 Fan Motor Capacitor 22 6 3 14 Outer Glass 23 6 3...

Page 14: ...15 Revision 1 F3563 6 4 ADJUSTMENT CALIBRATION 25 6 4 1 Thermostat Calibration 25 6 4 2 Door Microswitch Adjustment 25 6 4 3 60 Minute Timer Zero Position Adjustment 26 6 4 4 Buzzer Volume Adjustment 26 ...

Page 15: ...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 n o com n c Figure 6 1 1 Fan motor capacitor faulty Ensure that oven is isolated from the power supply Disconnect all wires from the motor terminal block except for...

Page 16: ...or microswitch If there is no voltage then refer 6 1 2 microswitch out of adjustment faulty If there is voltage then check wiring to the thermostat 6 1 6 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 5 60 MINUTE ...

Page 17: ...ostat requires recalibration NOTE Thermostat cycling span should be 15 C or 27 F Indicator faulty With the thermostat on and heating 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 10 NO THERMOSTAT HEATING INDICATOR Thermostat faulty Set thermostat to 200 C or 400 F Check the voltage out of...

Page 18: ...o thumb screws top 6 2 3 BAFFLE 2 Pull out 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 Lift baffle to disengage from locating studs and thumbscrews and remove baffle Figure 6 2 3 6 2 4 E27 CONTROL PANEL REAR Figure 6 2 4 One Screw Buzzer Power Switch Heating Indicator Thermostat Bake Time Up Light Switch 60 min Bake Tim...

Page 19: ...heir positions 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 3 Unscrew bulb out of fitting 4 Screw in replacement bulb 5 Replace lamp cover and baffle 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...

Page 20: ...en 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 rear of the element 3 Pull element carefully to remove 4 Replace and re assemble in...

Page 21: ...d remove the motor 4 Replace and re assemble in reverse order 5 Ensure wire connections are correct fig 6 3 13 6 3 12 MOTOR DIRECTION TIMER 6 3 13 MOTOR CAPACITOR Grub Screw 1 Open control panel refer 6 2 1 2 Remove wires from the timer noting their positions and the wire to the timer motor from the control panel 3 Remove the four screws securing the timer to the timer mounting bracket Figure 6 3 ...

Page 22: ...ee Screws 6 3 15 INNER GLASS 1 Remove the outer glass refer 6 3 14 2 Undo four screws and remove the top trim and handle assembly Hinge Locking Clip Hinge Locking Notch Figure 6 3 17 6 3 16 DOOR SEALS 1 Open oven door 2 To remove hold at their centre point and pull forward until they unclip 3 Refit new seals Note Fit top and bottom seals first with open side of seal facing downwards Fit side seals...

Page 23: ... oven securing wrapper to oven Figure 6 3 23 3 Turn oven onto its back and remove three screws at each side securing wrapper and two securing insulation panel Figure 6 3 24 Two screws Figure 6 3 26 9 Remove two screws securing insulation panel to oven liner Insulation panel 8 screws 7 Remove wrapper 8 Undo two screws securing left hand counter bracket to oven and remove Replace ensuring that brack...

Page 24: ...rol panel refer 6 2 1 3 With fingers bend actuator arm of microswitch so that switch operates when door is in closed position 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 MAX TEMPERATURE POSITION BEFORE CARRYI...

Page 25: ...red to ensure that the buzzer sounds at the zero position Two Screws 6 4 4 BUZZER VOLUME ADJUSTMENT Two Screws NOTE The buzzer volume is set to full at the factory Should the volume need to be reduced then the following steps should be followed 1 Remove control panel refer 6 2 1 2 Remove two screws holding buzzer to control panel 3 Adjust volume screw on buzzer clockwise to increase volume and ant...

Page 26: ...IRCUIT SCHEMATIC N E L2 2 8kW ELEMENT FAN POWER RELAY T STAT 1 4 A B 6 1 OVEN P M Ø L1 POWER 3 4 SWITCH 1 2 BUZZER 1Hr TIMER LIGHT SWITCH B DOOR SWITCH M C C Nc No Nc No No Nc C 3 2 1 5 6 4 LIGHT TIME UP MOTOR TIMER 3uF HEATING FAN MOTOR ...

Page 27: ...O NC EARTH STUD G 26 25 27 29 FAN MOTOR ELEMENT 26 LIGHTS 11 1 2 3 1 4 12 3 2 13 14 T STAT 2 19 TIME UP TIMER 20 20 HEAT 21 1 1 3 4 CAPACITOR MOTOR TIMER POWER RELAY 4 6 P 1 No COM Nc A 1 22 18 30 15 14 5 11 2 5 6 27 9 25 23 16 17 9 24 8 7 17 16 B BROWN BLUE BLACK BLACK WHITE 6 2 15 3 BROWN BLUE BLACK BLACK WHITE CONNECTOR BLOCK 18 28 3 ...

Page 28: ...URE EDISON SCREW MOTOR ELEMENTS 024410 OVEN FAN ELEMENT 2800W 230 240V 024409 OVEN FAN ELEMENT 2800W 208 220V 024431 FAN MOTOR 024432 CAPACITOR 3µF 024503 MOTOR TIMER 208 220V 024567 MOTOR TIMER 220 240V 024433 FAN 021698 BAFFLE SECURING SCREW DOOR SA1548 COMPLETE DOOR ASSEMBLY 024405 OVEN DOOR SEAL ASSEMBLY SIDE 024404 OVEN DOOR SEAL ASSEMBLY TOP BOTTOM 021468 HANDLE 024377 DOOR OUTER GLASS 02437...

Page 29: ...30 Revision 1 F3563 10 ACCESSORIES OVEN RACKS PART NO 24408 100 MM FOUR INCH FOOT OPTION PART NO 13048 A28 STAINLESS STEEL STAND 25 MM ONE INCH FOOT OPTION PART NO 13908 DOUBLE STACKING KIT PART NO 24419 ...

Page 30: ... 11 PARTS DIAGRAMS 11 1 MAIN ASSEMBLY 22 23 24 23 25 26 21 21 27 28 20 19 18 29 30 32 33 34 35 38 39 40 14 15 16 16 15 17 42 42 39 41 12 13 10 9 8 7 9 10 43 5 6 5 45 46 47 4 3 2 1 48 51 50 49 52 53 54 55 31 43 36 37 11 44 ...

Page 31: ...5 024392 INNER GLASS SEAL 26 024414 BOTTOM TRIM 27 004918 DOOR INNER PANEL ENAMELLED 28 023218 HINGE 29 SA1550 CONTROL PANEL ASSEMBLY BAKBAR REFER SECTION 11 2 SA1549 CONTROL PANEL ASSEMBLY BLUE SEAL REFER SECTION 11 2 SA1551 CONTROL PANEL ASSEMBLY MOFFAT REFER SECTION 11 2 30 024394 OVEN BODY 31 013908 FOOT ASSEMBLY 32 024396 INSULATION PANEL 33 024503 MOTOR TIMER 208 220V 024567 MOTOR TIMER 220 ...

Page 32: ...TE 49 013520 OVEN LAMP ASSEMBLY 003434 SILK GASKET 013521 LAMP 40W 003002 LIGHT GLASS 50 024431 MOTOR 024478 MOTOR SHAFT SEAL 51 024432 CAPACITOR 3µF 52 003004 MICROSWITCH 53 013977 INSULATOR 54 023093 MICROSWITCH MOUNTING BRACKET 55 024399 VENT TUBE ...

Page 33: ...L PANEL C BAKBAR 004915 CONTROL PANEL C BLUE SEAL 004917 CONTROL PANEL F MOFFAT 2 021474 LIGHT SWITCH 3 020823 TIMER KNOB 4 020849 INDICATOR NEON 5 021472 THERMOSTAT KNOB 6 021473 POWER SWITCH 7 023211 THERMOSTAT 50 250 C 120 480 F 8 011760 TIMER 60 MIN 9 011794 BUZZER 2 1 7 8 5 9 6 4 4 3 ...

Page 34: ...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 35: ...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 36: ...ere marked 3 Secure the vent duct to the wrapper with five 3 8 x 8A Pozi screws into these holes 4 Undo the three screws securing the top lintel to the bottom oven and remove the lintel Remove the four 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 ...

Page 37: ...ttom oven 2 Secure double stack rear to bottom unit with four screws Secure the double stack front to the lintel support of the bottom unit with three screws 3 Remove the rear cover panel from the top unit Fit the vent pipe to the vent duct then secure pipe to the rear panel of the top unit using the saddle clamp and two screws 4 Using pliers or similar knock out the notches at the top and bottom ...

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