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Troubleshooting - KitchenAid YKHMS155L Use & Care Manual

Microwave hood combination
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5. Remove the old bulb by squeezing the wire clip together,
pulling to the right and lifting.
6. Replace bulb, using tissue or wearing cotton gloves to handle
bulb. Do not touch bulb with bare fingers.
7. Close bulb cover.
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 a circuit breaker
tripped?
Replace the fuse or reset the circuit.
Is the appliance wired properly?
See Installation Instructions provided with your oven.
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.
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8. Slide the top of the vent grille into place. Push the bottom
9. Plug in microwave oven or reconnect power.

TROUBLESHOOTING

until it snaps into place. Replace the mounting screws.
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 alternates directions
This is normal and depends on motor rotation at beginning of
cycle.
Display shows messages
Is the display showing an "Oven Status" screen, with a
letter/number code and instruction to inform KitchenAid?
The oven has detected an internal problem. It has run a self-
checking program and displayed the error. Call for service.
See "Assistance or Service" section.
Display shows time countdown, but is not operating
Is the Timer in use?
See "Timer" section.
On some models, is the Demo Mode in use?
See "Demo Mode" section.

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