132
eikon e1s
Service and repair guide
Adjusting the door microswitches
Requirements and tools
Check that the following requirements have been met:
•
The appliance has been disconnected from the power supply and protective measures have been taken to ensure
the power cannot be switched on again.
•
The appliance is cool.
•
The top and side panels of the casing of the appliance have been removed.
•
The high voltage capacitors are discharged before commencing work.
•
Anti-static precautions have been taken.
Tools required:
•
M7 hex socket wrench
Component location and importance
Located on the door hinges are three safety microswitches, to prevent microwave
emissions escaping when the oven door is opened:
•
The primary microswitch (SW3) breaks the electrical supply circuit to the
transformers.
•
The secondary microswitch (SW2) breaks the microwave circuit if the
primary fails.
•
The monitor switch (SW1) will short out the microwave circuit blowing the
fuse if both primary and secondary microswitches fail.
You should adjust the microswitches after replacing old with new door hinges.
Note: Micro-switch alignment is NOT required if just refitting the same door.
Important note:
In the event that the monitor switch causes the microwave circuit fuse to blow, the
secondary (SW2) and monitor (SW1) microswitches must be replaced due to
exposure to high short-circuit currents.
The purpose of the following adjustment procedure is to set the microswitch to
switch off the microwave circuit when the door is opened more than 4 mm and for
the microwave circuit to operate when the door is closed and the door seal expands.
Adjusting the switches
1. Open the appliance door and position the red 4mm spacers over the top
corners of the door seal. Then carefully close the door ensuring the spacer is
still in position.
2. Slacken the pivot screw using a M7 hex socket wrench.
3. Release the adjusting screws and move the backplate until microswitch SW3 just activates. Then secure all screws.
Summary of Contents for Merrychef eikon e1s
Page 11: ...11 eikon e1s Service and repair guide Section 1 Safety ...
Page 43: ...43 eikon e1s Service and repair guide Section 2 Operations and Installation ...
Page 82: ...82 eikon e1s Service and repair guide Section 3 Service and Repair ...
Page 147: ...147 eikon e1s Service and Repair Guide Circuit diagrams ...
