Blue Seal E25 Service Manual
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Blue Seal E25 Service Manual

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E25 CONVECTION OVEN
SERVICE
MANUAL
Revision 3/F3542
-1-

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Summary of Contents for Blue Seal E25

  • Page 1 E25 CONVECTION OVEN SERVICE MANUAL Revision 3/F3542...
  • Page 2 WARNING: ALL INSTALLATION AND SERVICE REPAIR WORK MUST BE CARRIED OUT BY QUALIFIED PERSONS ONLY. Revision 3/F3542...

  • Page 3: Table Of Contents

    CONTENTS This manual is designed to take a more in depth look at the E25 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 ACCESSORIES / OPTIONS ..................35 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 SERVICE CONTACTS ....................42 APPENDIX A. DOUBLE STACKING KIT ................44 Revision 3/F3542...

  • Page 5: Specifications

    1. SPECIFICATIONS MODEL: E25 / E25B (28.4) (23.6) (1.9) (1.75) (24.6) (4.4) (4.9) (15.5) FRONT SIDE PLAN LEGEND - Electrical connection entry point Dimensions shown in millimetres. Dimensions in inches shown in brackets. Revision 3/F3542...
  • Page 6 LOCATION To ensure correct ventilation for the motor and controls the following minimum installation clearances are to be adhered to: Rear 25mm / 1” Left-hand side 25mm / 1” Right-hand side 25mm / 1” OVEN INTERNAL DIMENSIONS Width 470 mm / 18.5” Height 254 mm / 10.0”...

  • Page 7: Installation

    To ensure correct ventilation for the motor, RATING PLATE LOCATION controls following minimum The rating plate for the E25 convection oven installation clearances are to be adhered to: is located at the bottom left corner of the RH side panel. Rear 25mm / 1”...

  • Page 8: Operation

    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 - E25 1. POWER Depress to switch power on or off (switch illuminates when power is on).

  • Page 9: Description Of Controls-E25B

    3.2 DESCRIPTION OF CONTROLS - E25B 1. POWER Depress to switch power on or off (switch illuminates when power is on). 2. THERMOSTAT Temperature range 50 - 270°C (120 - 525°F). (Indicator illuminates when elements are cycling ON to maintain set temperature. BROIL POSITION (E25B Only) - The BROIL indicator will illuminate indicating that the BROIL function has been set.

  • Page 10: Explanation Of Control System

    The E25 and E25B Turbofan convection ovens feature multi-function operator controls The E25 has an element coiled around the for which a correct understanding of their circulation fan in the rear of the oven. Power...
  • Page 11 open contacts to reset, thus switching the fan element off. 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. When the E25B thermostat is set to the Broil position the first set of auxiliary switch contacts close and the second set open.

  • Page 12: Maintenance

    4. MAINTENANCE WARNING: ALL INSTALLATION AND SERVICE REPAIR WORK MUST BE CARRIED OUT BY QUALIFIED PERSONS ONLY. 4.1 CLEANING OVEN SEALS To remove, hold at their centre point and pull forward until they unclip. Remove side seals WARNING: ALWAYS TURN THE first, then top and bottom.

  • Page 13: Trouble Shooting Guide

    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 The mains isolating switch on Turn on. OPERATE / START the wall, circuit breaker or fuses are “off”...
  • Page 14 FAULT POSSIBLE CAUSE REMEDY 60 MINUTE TIMER NO TIME Buzzer faulty. Replace. UP BUZZER (Refer fault diagnosis 6.1.5) (Refer service section 6.3.5) Timer not switching on buzzer. Replace timer. (Refer fault diagnosis 6.1.5) (Refer service section 6.3.6) 60 MINUTE TIMER NO TIME Indicator faulty.
  • Page 15 FAULT POSSIBLE CAUSE REMEDY BROIL ELEMENT NOT Element faulty / blown. Replace. WORKING (E25B ONLY) (Refer fault diagnosis 6.1.12) (Refer service section 6.3.9) Faulty thermostat. Replace. (Refer fault diagnosis 6.1.12) (Refer service section 6.3.7) Heating relay faulty Replace. (Refer fault diagnosis 6.1.12) (Refer service section 6.3.8) Broil relay faulty Replace.

  • Page 16: Service Procedures

    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 REPLACEMENT ........................23 6.3.1 Light Bulb / Glass ....................23 6.3.2 Door Microswitch ....................
  • Page 17 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 Revision 3/F3542 -17-...

  • Page 18: Fault Diagnosis

    6.1 FAULT DIAGNOSIS Microswitch n.c. 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 n.o. is the voltage as stated on the unit’s electrical Figure 6.1.1 rating plate.

  • Page 19: Minute Timer No Time Up Indicator

    Indicator faulty replace. With the timer in the zero position, check for NOTE: E25 thermostat may cycle on and off voltage across the indicator light. If correct, with the knob set to the ‘off’ position if the then the indicator light is faulty—replace.

  • Page 20: Fan Element Not Working

    If no current draw then element is faulty—replace. current draw then the element is faulty— replace. NOTE: Correct fan element current draw: E25 120 V: 12.9A ± 1.5A NOTE: Top element current draw: E25B 120 V: 16.7A ± 1.5A 120 V: 16.7A ±...

  • Page 21: Broil Indicator Not Working

    6.1.13 BROIL INDICATOR NOT WORKING (E25B ONLY) Indicator faulty With thermostat in broil position, check the voltage across the indicator terminals. If the voltage is correct then indicator is faulty— replace. If there is no voltage then check wiring. 6.1.14 OVEN OVERHEATS IN BROIL MODE (E25B ONLY) Heating relay faulty With the oven switched off, disconnect the...

  • Page 22: Access

    6.2 ACCESS 6.2.4 E25 CONTROL PANEL—REAR 6.2.1 CONTROL PANEL 1) Undo one screw at bottom of control panel. Power Switch Heating Indicator Thermostat Bake Time Up One Screw Bake Timer Figure 6.2.1 2) Pull out bottom of control panel and drop down to disengage tabs at top of control panel.

  • Page 23: Replacement

    6.3 REPLACEMENT Neon Wires 6.3.1 LIGHT BULB / GLASS 1) Unscrew lamp cover. Figure 6.3.3 2) From back push neon through front of Lamp panel rotating clockwise. Cover 3) Push new neon in from front of panel, and reconnect wires. Figure 6.3.1 6.3.4 POWER / LIGHT SWITCHES 2) Unscrew bulb out of fitting.

  • Page 24: Bake Timer

    3) Pull element carefully to remove. 4) Replace and re-assemble in reverse order. Element Ratings 100-120V Top Element 7.2 ohms Fan Element (E25) 9.3 ohms Screws Fan Element (E25B) 7.2 ohms Figure 6.3.8 220-240V Fan Element 28.8 ohms...

  • Page 25: Fan

    4) Replace and re-assemble in reverse order. 6.3.10 FAN 5) Ensure wire connections are correct (fig 1) With baffle removed (refer 6.2.3) undo the 6.3.12) centre nut. NOTE: LH thread - Turn clockwise to loosen. Take care not to lose the two 6.3.12 OUTER GLASS washers.

  • Page 26: Inner Glass

    6.3.13 INNER GLASS 6.3.15 DOOR HANDLE 1) Remove the door (refer 6.3.12). 1) Remove the outer glass (refer 6.3.12). 2) Undo two screws and remove the top trim 2) Undo two screws and remove the top trim and handle assembly, taking care not to and handle assembly.
  • Page 27 9) Remove two screws securing insulation panel to oven liner. 8 screws Screws Figure 6.3.21 4) Undo two screws and remove lintel cover. Insulation panel 5) Remove control panel (refer 6.2.1) and microswitch bracket (refer 6.3.2). Place inside oven. 6) Remove screws securing lintel...

  • Page 28: Adjustment / Calibration

    Calibration Nut 6.4 ADJUSTMENT / CALIBRATION Thermostat Shaft 6.4.1 THERMOSTAT CALIBRATION - E25 Broil Switch IMPORTANT: OVEN T E M P E R A T U R E N E E D S INCREASED, ENSURE THAT THERMOSTAT IS IN THE ‘OFF’ POSITION BEFORE CARRYING OUT ADJUSTMENT.
  • Page 29 7) Adjust the calibration nut located at the 6.4.4 60 MINUTE TIMER ZERO POSITION base of the thermostat shaft. ADJUSTMENT increase oven temperature, turn calibration nut anticlockwise. 1) Remove 60 minute timer knob by pulling it To decrease oven temperature, turn firmly away from control panel.

  • Page 30: Electrical Schematics

    7. ELECTRICAL CIRCUIT SCHEMATIC 7.1 E25 Revision 3/F3542 -30-...
  • Page 31 7.2 E25B Revision 3/F3542 -31-...

  • Page 32: Electrical Wiring Diagrams

    8. ELECTRICAL WIRING DIAGRAM 8.1 E25 Revision 3/F3542 -32-...
  • Page 33 8.2 E25B Revision 3/F3542 -33-...

  • Page 34: Spare Parts

    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)
  • Page 35 10. ACCESSORIES 100 MM (FOUR INCH) FOOT OPTION OVEN RACKS (PART NO 12809) (PART NO 13048) 25 MM (ONE INCH) FOOT OPTION (PART NO 13908) SCONE TRAYS (PART NO 02083) DOUBLE STACKING KIT (PART NO 24290) A25 STAINLESS STEEL STAND Revision 3/F3542 -35-...

  • Page 36: Parts Diagram

    11. PARTS DIAGRAMS 11.1 MAIN ASSEMBLY - E25 Revision 3/F3542 -36-...
  • Page 37 Part No. Description 012809 OVEN RACK 011402 PIVOT TOP COVER 023074 LINTEL SUPPORT 023087 WRAPPER - - - - - - 003016 MOTOR PLATE 023215 MOTOR – 240V 023214 MOTOR – 110V 004857 OVEN 017770 PHIAL GUARD 023093 MICROSWITCH MOUNTING BRACKET 012520 OVEN LIGHT ASSEMBLY –...

  • Page 38: 11.2 Main Assembly - E25B

    11.2 MAIN ASSEMBLY - E25B (110V ONLY) Revision 3/F3542 -38-...
  • Page 39 Part No. Description 012809 OVEN RACK 011402 PIVOT TOP COVER 023074 LINTEL SUPPORT 023087 WRAPPER - - - - - - 003016 MOTOR PLATE 023214 MOTOR (110V) 023075 OVEN 017770 PHIAL GUARD 023093 MICROSWITCH MOUNTING BRACKET 023216 OVEN LIGHT ASSEMBLY (110V) 013977 MICROSWITCH INSULATION 003004...

  • Page 40: 11.3 Control Panel Assembly - E25

    11.3 CONTROL PANEL ASSEMBLY - E25 Part No. Description 004851 CONTROL PANEL - BAKBAR 004880 CONTROL PANEL - BLUE SEAL 004850 CONTROL PANEL - MOFFAT 021473 POWER SWITCH – 240V 021514 POWER SWITCH – 110V 020849 NEON INDICATOR - 240V...

  • Page 41: 11.4 Control Panel Assembly - E25B

    11.4 CONTROL PANEL ASSEMBLY - E25B (110V ONLY) Part No. Description 004849 CONTROL PANEL - MOFFAT 021514 POWER SWITCH - 110V 023857 NEON - 110V 020823 KNOB 021474 LIGHT SWITCH 015822 BUZZER - 110V 023212 TIMER - COUPATAN (TO S/N 228661) 011760 TIMER - DIEHL (FROM S/N 228662) 017121...

  • Page 42: Service Contacts

    11. SERVICE CONTACTS AUSTRALIA VICTORIA 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 Unit 8/142 James Ruse Drive Rosehill NSW 2142 Spare Parts Free Call 1800 337 963...
  • Page 43 UNITED KINGDOM BLUESEAL LTD Units 6-7 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 NATIONAL COVERAGE FOR SERVICE OR MAINTENANCE DIAL FREE CALL 1800 551 8795 (USA ONLY) Revision 3/F3542 -43-...

  • Page 44: Appendix A. Double Stacking Kit

    APPENDIX A. DOUBLE STACKING KIT (24290) Kit Includes: Part No Vent Duct 24306 Vent Pipe 24307 Saddle Clamp 10023 Double Stack Front 04907 Double Stack Side 24303 Double Stack Rear 24302 " x 8A Pozi Pan Hd Screw 41045 ½” x 8 Phillips Head Black Screw 41046 Black Fibre Washer 10329...
  • Page 45 Stacking the Ovens (Refer figure A.2) With two persons, lift the top oven onto the bottom oven and position slightly forward so that the double stack front engages with the lintel support on the bottom oven, then slide the top oven back until the double stack sides are flush with the sides and rear of the bottom oven.
  • Page 46 Revision 3/F3542 -46-...

This manual is also suitable for:

E25bTurbofan 25

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