Electrolux EW27MO55HSA Technical & Service Manual page 36

Component Teardown
ADJUSTMENT
If the door sensing switch, primary interlock switch, third
interlock switch and monitor switch do not operate
properly due to a misadjustment, the following adjustment
should be made.
1. Disconnect the oven power supply cord and remove
outer case.
2. Open the oven door and block it open.
3. Discharge the high voltage capacitor.
To discharge the high voltage capacitor, wait for 60
seconds and then short-circuit the connection of
the high-voltage capacitor (that is the connecting
lead of the high-voltage rectifier) against the
chassis with the use of an insulated screwdriver.
4. Loosen each one (1) screw holding the latch hook
right and the latch hook left to the oven cavity front
plate.
5. With door closed, adjust the latch hook right and the
latch hook left by moving them back and forth and
up and down. In and out play of the door allowed by
the latch hook right and the latch hook left should be
less than 0.5 mm. The vertical position of the latch
hook right and the latch hook left should be adjusted
so that the door sensing switch and the primary
interlock switch are activated with the door closed.
The horizontal position of the latch hook right and the
latch hook left should be adjusted so that the plunger
of the monitor switch is pressed with the door closed.
6. Secure the screws firmly.
7. Check all of the switches operation. If any switch has
not activated with the door closed, loosen the screws
and adjust the position of the latch hook right and the
latch hook left.
After adjustment, check the following.
1. In and out play of door remains less than 0.5mm
when in the latched position. First check upper
position of latch hook, pushing and pulling upper
portion of door toward the oven face. Then check
lower portion of the latch hook, pushing and pulling
lower portion of the door toward the oven face. Both
results (play in the door) should be less than 0.5mm.
2. The door sensing switch, and secondary interlock
switch interrupt the circuit before the door can be
opened.
Monitor switch
Latch
head
Figure 4-4. Door Switch Components
3. Monitor switch contacts close when door is opened.
4. The contact of door sensing switch and secondary
interlock switch open within 1.2mm gap between right
side of cavity face plate and door when door is open.
5. Re-install outer case and check for microwave
leakage around door with an approved microwave
survey meter. (Refer to Microwave Measurement
Procedure.)
4-6
Latch hook left
Primary
interlock switch
3rd door switch
Latch hook right
Latch
head
Door
sensing switch