Replacing Microwave Oven Light; Troubleshooting - Whirlpool MH1140XM Use & Care Manual

Replacing Microwave Oven Light

The microwave oven light is a candelabra base 30-watt bulb. It
will automatically come on when the door is opened and when
the microwave oven is operating. See "Assistance or Service"
section to reorder.
To Replace:
1. Unplug microwave oven or disconnect power.
2. Remove the 2 outer vent grille mounting screws located
above the cover.
3. Tip the grille forward, then lift out to remove.
4. Lift up the bulb cover.
1
1. Bulb cover
5. Replace light. Close bulb cover.
6. Reattach vent grille. Replace the mounting screws.
7. Plug in microwave oven or reconnect power.
14

TROUBLESHOOTING

Try the solutions suggested here first in order to avoid the
cost of an unnecessary service call.
Nothing will operate
Has a household fuse blown or has the circuit breaker
tripped?
Replace the fuse or reset the circuit.
Is the appliance wired properly?
See Installation Instructions.
Oven will not operate
Is the door completely closed?
Firmly close door.
Is a spacer (on some models) attached to the inside of the
door?
Remove spacer, then firmly close door.
Is the electronic oven control set correctly?
See "Microwave Oven Control" section.
On some models, is the Child Lock set?
See "Child Lock" section.
Is the magnetron working properly?
Try to heat 1 cup (250 mL) of cold water for 2 minutes at
100% cooking power. If water does not heat, call for service.
See "Assistance or Service" section.
Oven makes humming noise
This is normal and occurs when the power supply switches
the magnetron on and off.
Oven door looks wavy
This is normal and will not affect performance.
Turntable will not operate
Is the turntable properly in place?
Make sure turntable is correct-side up and is sitting securely
on the turntable support.
Is the turntable support operating properly?
Remove turntable. Remove and replace turntable support.
Replace turntable. Place 1 cup (250 mL) of water on the
turntable, then restart oven. If it still is not working, call for
service. See "Assistance or Service" section. Do not operate
the oven without turntable and turntable support working
properly.
Turntable rotates both directions
This is normal and depends on motor rotation at beginning of
cycle.