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11 - 6
2. 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.
3. Monitor switch contacts close when door is opened.
4. Re-install outer case and check for microwave
leakage around door with an approved microwave
survey meter. (Refer to Microwave Measurement
Procedure.)
Figure C-5. Latch Switch Adjustments
Latch
Heads
Door
Switch Lever
Latch Hook
Monitor Switch
Door Sensing
Switch
Secondary
Interlock Switch
1. REMOVAL
1. Disconnect the power supply cord.
2. Open the door slightly.
3. Insert a putty knife (thickness of about 0.5mm) into
the gap between the choke cover and corner portion
of door panel as shown in Figure C-6 to free engaging
parts.
4. Pry the choke cover by inserting a putty knife in order
shown in fi gure C-6.
5. Release choke cover from door panel.
6. Now choke cover is free.
NOTE: When carrying out any repair to the door, do
not bend or warp the slit choke (tabs on the
door panel assembly) to prevent microwave
leakage.
7. Release two (2) pins of door panel from two (2) holes
of upper and lower oven hinges by lifting up.
8. Now, door panel is free from oven cavity.
9. Release door panel from ten (10) tabs of door frame
and remove door frame by sliding the door panel
downward.
10. Now, door panel with sealer fi lm is free.
11. Tear sealer fi lm from door panel.
12. Now, door panel is free.
13. Slide latch head upward and remove it from door
frame with releasing latch spring from door frame and
latch head.
14. Now, latch head and latch spring are free.
15. Remove door screen from door frame.
16. Now, door screen is free.
[14] DOOR REPLACEMENT
2. REINSTALL
1. Re-install door screen to door frame.
2. Re-install latch spring to the head. Re-install latch
spring to the door frame. Re-install latch head to the
door frame.
3. Re-install door panel to door frame by fi tting ten (10)
tabs of door frame to ten (10) holes of door panel.
4. Put sealer fi lm on door panel. Refer to “Sealer Film”
and fi gure C-8, on how to handle the new fi lm.
5. Catch two (2) pins of door panel on two (2) hole of
upper and lower oven hinges.
6. Re-install choke cover to door panel by pushing.
NOTE: After any service to the door;
1) Make sure that door sensing switch, secondary
interlock switch and monitor switch are operating
properly. (Refer to chapter “Test Procedures”.)
2) An approved microwave survey meter should be
used to assure compliance with proper microwave
radiation emission limitation standards.
3. After any service, make sure of the following :
1. Door latch heads smoothly catch latch hook through
latch holes and that latch head goes through center of
latch hole.
2. Deviation of door alignment from horizontal line of
cavity face plate is to be less than 1.0mm.
3. Door is positioned with its face pressed toward cavity
face plate.
4. Check for microwave leakage around door with
an approved microwave survey meter. (Refer to
Microwave Measurement Procedure.)
NOTE: The door on a microwave oven is designed
to act as an electronic seal preventing the
leakage of microwave energy from oven
cavity during cook cycle. This function does
not require that door be air-tight, moisture
(condensation)- tight or light-tight. Therefore,
occasional appearance of moisture, light or
sensing of gentle warm air movement around
oven door is not abnormal and do not of
themselves, indicate a leakage of microwave
energy from oven cavity.
Figure C-6. Door Disassembly
Choke Cover
Door Frame
Putty Knife
Service_R-231NW.indd 30Service_R-231NW.indd 30 6/24/09 3:56:49 PM6/24/09 3:56:49 PM
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