Moffat E27 Service Manual
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Moffat E27 Service Manual

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E27 CONVECTION OVEN
E27MS CONVECTION OVEN
SERVICE
MANUAL
E27 Convection Oven
-1-
© Moffat Ltd, January 2009
Revision 4/F3563

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Summary of Contents for Moffat E27

  • Page 1 E27 CONVECTION OVEN E27MS CONVECTION OVEN SERVICE MANUAL E27 Convection Oven © Moffat Ltd, January 2009 Revision 4/F3563...
  • Page 2 WARNING: ALL INSTALLATION AND SERVICE REPAIR WORK MUST BE CARRIED OUT BY QUALIFIED PERSONS ONLY. E27 Convection Oven © Moffat Ltd, January 2009 Revision 4/F3563...

  • Page 3: Table Of Contents

    CONTENTS This manual is designed to take a more in depth look at the E27 convection oven for the purpose of making the unit 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.
  • Page 4 PARTS DIAGRAM ......................31 11.1 Main Assembly 11.2.1 Control Panel Assembly - E27 11.3.2 Control Panel Assembly - E27MS 11.3 E27MS Door Assembly SERVICE CONTACTS....................37 APPENDIX A. DOUBLE STACKING KIT ................39 E27 Convection Oven © Moffat Ltd, January 2009...

  • Page 5: Specifications

    1. SPECIFICATIONS MODEL: E27 (37.2) (28.5) (1.75) (3.0) (31.1) (9.3) (15.6) (4.7) FRONT SIDE PLAN LEGEND - Electrical connection entry point Dimensions shown in millimetres. Dimensions in inches shown in brackets. E27 Convection Oven © Moffat Ltd, January 2009 Revision 4/F3563...
  • Page 6 3-pin 250V 15A, AS/NZ 3112 United Kingdom 3-pin 250V 13A fused, BS 1363A United States 3-pin 250V 15A, NEMA 6-15 Other Countries 3-pin 250V 13A minimum, type meet country standards E27 Convection Oven © Moffat Ltd, January 2009 Revision 4/F3563...

  • Page 7: Installation

    To ensure correct ventilation for the motor, RATING PLATE LOCATION controls following minimum The rating plate for the E27 convection oven installation clearances are to be adhered to: is located at the bottom left corner of the RH side panel. 200mm / 8”...

  • Page 8: Operation

    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). E27 Convection Oven © Moffat Ltd, January 2009 Revision 4/F3563...

  • Page 9: Explanation Of Control System

    The control device functions element may cycle on at this setting. are explained as follows: The circulation fan on the E27 oven reverses A power switch on the control panel isolates direction every 90 seconds for a 50Hz supply power to all the controls of the oven.

  • Page 10: Maintenance

    (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. E27 Convection Oven -10- © Moffat Ltd, January 2009 Revision 4/F3563...

  • Page 11: Trouble Shooting Guide

    (Refer fault diagnosis 6.1.3) OVEN LIGHT NOT Blown bulb. Replace. ILLUMINATING - DOOR (Refer service section 6.3.1) CLOSED Light switch faulty. Replace. (Refer fault diagnosis 6.1.4) (Refer service section 6.3.4) E27 Convection Oven -11- © Moffat Ltd, January 2009 Revision 4/F3563...
  • Page 12 Check fan operation. Thermostat calibration. Correct calibration. (Refer fault diagnosis 6.1.9) (Refer service section 6.4.1) NO THERMOSTAT HEATING Indicator faulty. Replace. INDICATOR LIGHT (Refer fault diagnosis 6.1.10) (Refer service section 6.3.3) E27 Convection Oven -12- © Moffat Ltd, January 2009 Revision 4/F3563...
  • Page 13 Replace. worn. (Refer service section 6.3.19) DOOR SEAL LEAKS Door seal damaged. Replace. (Refer service section 6.3.16) Door seal incorrectly fitted. Correctly install door seal. (Refer service section 6.3.16) E27 Convection Oven -13- © Moffat Ltd, January 2009 Revision 4/F3563...

  • Page 14: Service Procedures

    No Thermostat Heating Indicator.................18 ACCESS ..........................19 6.2.1 Control Panel .......................19 6.2.2 Service Panel (Rear Panel) .................19 6.2.3 Baffle ........................19 6.2.4 E27 Control Panel (Rear)..................19 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...

  • Page 15: 6.4 Adjustment / Calibration

    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 E27 Convection Oven -15- © Moffat Ltd, January 2009 Revision 4/F3563...

  • Page 16: Fault Diagnosis

    Using a multimeter, measure the resistance If not, microswitch is faulty—replace. across capacitor terminals. Microswitch n.c. Capacitor Terminals n.o. Figure 6.1.1 Figure 6.1.3 E27 Convection Oven -16- © Moffat Ltd, January 2009 Revision 4/F3563...

  • Page 17: Oven Light Not Illuminating-Door Open

    If there is no voltage, then check 6.1.2, microswitch out of adjustment / faulty. wiring. If there is voltage then check wiring to the With switch depressed, check voltage at thermostat. E27 Convection Oven -17- © Moffat Ltd, January 2009 Revision 4/F3563...

  • Page 18: No Temperature Control

    If indicator has not cycled off after 10 minutes then thermostat is faulty—replace. NOTE: E27 thermostat may cycle on and off with the knob set to the ‘off’ position if the oven temperature is below 20°C. Heating relay faulty With power switch off on control panel, check for voltage at terminal 4 of heating relay.

  • Page 19: Access

    6.2 ACCESS 6.2.4 E27 CONTROL PANEL—REAR 6.2.1 CONTROL PANEL Power Switch 1) Undo one screw at bottom of control panel. Heating Indicator Thermostat Bake Time Up One Screw Indicator Figure 6.2.1 2) Pull out bottom of control panel and drop...

  • Page 20: Replacement

    1) With control panel open (refer 6.2.1) remove the wires from the back of the Two Screws neon. Figure 6.3.5 4) Transfer wires to new buzzer. 5) Reassemble in reverse order. E27 Convection Oven -20- © Moffat Ltd, January 2009 Revision 4/F3563...

  • Page 21: Bake Timer

    Element Ratings (±5%) 5) Withdraw old thermostat phial through 208-220V Fan Element 15.5 ohms rear of oven. 6) Insert new thermostat. 230-240V Fan Element 20.5 ohms 7) Re-assemble in reverse order. E27 Convection Oven -21- © Moffat Ltd, January 2009 Revision 4/F3563...

  • Page 22: Fan

    Screws (x4) Figure 6.3.16 3) Remove the capacitor wires from the motor terminal block. 4) Replace with new capacitor, and re- assemble in reverse order. Figure 6.3.14 E27 Convection Oven -22- © Moffat Ltd, January 2009 Revision 4/F3563...

  • Page 23: Outer Glass

    3) Uncrimp the retaining lugs of the window 6.3.14 OUTER GLASS (E27) spacer and remove the spacer and glass. 1) Open the oven door. 2) Lock hinges into position by rotating the hinge locking clip over the hinge locking notch.

  • Page 24: Door Hinges

    8 screws Insulation panel Figure 6.3.24 4) Undo three screws and remove lintel cover. 5) Remove control panel (refer 6.2.1) and Figure 6.3.27 microswitch bracket (refer 6.3.2). Place inside oven. E27 Convection Oven -24- © Moffat Ltd, January 2009 Revision 4/F3563...

  • Page 25: Adjustment / Calibration

    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 6.4.2 E27 Convection Oven -25- © Moffat Ltd, January 2009 Revision 4/F3563...

  • Page 26: Minute Timer Zero Position Adjustment

    Two Screws Figure 6.4.4 3) Adjust volume screw on buzzer, clockwise to increase volume, and anti-clockwise to decrease volume. Volume Adjustment Figure 6.4.5 4) Reassemble in reverse order. E27 Convection Oven -26- © Moffat Ltd, January 2009 Revision 4/F3563...

  • Page 27: Electrical Schematics

    7. ELECTRICAL CIRCUIT SCHEMATIC E27 Convection Oven -27- © Moffat Ltd, January 2009 Revision 4/F3563...

  • Page 28: Electrical Wiring Diagrams

    8. ELECTRICAL WIRING DIAGRAM E27 Convection Oven -28- © Moffat Ltd, January 2009 Revision 4/F3563...

  • Page 29: Spare Parts

    M024503 MOTOR TIMER 208-220V M024567 MOTOR TIMER 220-240V M024433 M021698 BAFFLE SECURING SCREW DOOR MSA1548 COMPLETE DOOR ASSEMBLY (E27) MSA1768 COMPLETE DOOR ASSEMBLY (E27MS) M024405 OVEN DOOR SEAL ASSEMBLY SIDE M024404 OVEN DOOR SEAL ASSEMBLY TOP/BOTTOM M021468 HANDLE (E27) M026498...

  • Page 30: Accessories / Options

    FOUR INCH FOOT OPTION OVEN RACKS (PART NO M024408) (PART NO M013048) ONE INCH FOOT OPTION (PART NO M013908) A28 STAINLESS STEEL STAND DOUBLE STACKING KIT (PART NO M024419) E27 Convection Oven -30- © Moffat Ltd, January 2009 Revision 4/F3563...

  • Page 31: Main Assembly

    11. PARTS DIAGRAMS 11.1 MAIN ASSEMBLY E27 Convection Oven -31- © Moffat Ltd, January 2009 Revision 4/F3563...
  • Page 32 M004918 DOOR INNER PANEL (Refer Section 11.3 for E27MS Door Assembly) M023218 HINGE MSA1550 CONTROL PANEL ASSEMBLY BAKBAR (REFER SECTION 11.2) MSA1551 CONTROL PANEL ASSEMBLY MOFFAT (REFER SECTION 11.2) M024394 OVEN BODY M013908 FOOT ASSEMBLY M024396 INSULATION PANEL M024503 MOTOR TIMER 208-220V...
  • Page 33 M003434 SILK GASKET M013521 LAMP 40W M003002 LIGHT GLASS M024431 MOTOR M024478 MOTOR SHAFT SEAL M024432 CAPACITOR 3µF M003004 MICROSWITCH M013977 INSULATOR M023093 MICROSWITCH MOUNTING BRACKET M024399 VENT TUBE E27 Convection Oven -33- © Moffat Ltd, January 2009 Revision 4/F3563...
  • Page 34 11.2.1 CONTROL PANEL ASSEMBLY - E27 Part No. Description M004916 CONTROL PANEL °C – BAKBAR M004915 CONTROL PANEL °C – BLUE SEAL M004917 CONTROL PANEL °F – MOFFAT M021474 LIGHT SWITCH M020823 TIMER KNOB M020849 INDICATOR NEON M021472 THERMOSTAT KNOB...
  • Page 35 INDICATOR NEON M023211 THERMOSTAT M021472 KNOB - THERMOSTAT M011760 1 HOUR TIMER M020823 KNOB - TIMER M021474 LIGHT SWITCH M011794 BUZZER M026613 OVERLAY - BLUE SEAL M026496 OVERLAY - MOFFAT E27 Convection Oven -35- © Moffat Ltd, January 2009 Revision 4/F3563...

  • Page 36: E27Ms Door Assembly

    M026485 DOOR OUTER PANEL M026579 HANDLE STIFFENER M026498 DOOR HANDLE PLATED M024378 DOOR INNER GLASS M024392 INNER GLASS SEAL INNER GLASS SEAL (7' Length) M090201P M026492 GLASS CLAMP ANGLE E27 Convection Oven -36- © Moffat Ltd, January 2009 Revision 4/F3563...
  • Page 37 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 3/142 James Ruse Drive Tel (02) 8833 4111 Rosehill NSW 2142 Spare Parts Free Call 1800 337 963...
  • Page 38 UNITED STATES OF AMERICA MOFFAT INC. 3765 Champion Blvd Winston-Salem Tel 1-866-673-3973 NC27115 Fax 336 661 9546 NATIONAL COVERAGE FOR SERVICE OR MAINTENANCE DIAL FREE CALL 18668733973 (USA ONLY) E27 Convection Oven -38- © Moffat Ltd, January 2009 Revision 4/F3563...
  • Page 39 (with fibre washers). Secure to bottom of oven with three screws. Secure the double stack rear to the double stack sides with two screws. E27 Convection Oven -39- © Moffat Ltd, January 2009 Revision 4/F3563...
  • Page 40 Using pliers or similar, knock out the notches at the top and bottom of the rear cover panel that allow for the vent pipe. Refit the rear cover panel to the top unit. Figure A.2 E27 Convection Oven -40- © Moffat Ltd, January 2009 Revision 4/F3563...
  • Page 41 E27 Convection Oven -41- © Moffat Ltd, January 2009 Revision 4/F3563...

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