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What could cause the fan on my Kenmore microwave to sometimes not come on?

I have a Kenmore microwave model #665.61659101 serial number TRM0110080. It is not working properly. The food is being heated, but the fan is not coming on all the time. Sometimes it comes on right away, sometimes it waits 30 seconds or so before coming on. The light, turntable, etc. all work, but it is very quiet. Too quiet for a microwave. Is this a common problem? What part may I need to fix it myself? Is it time for a new microwave? Thanks.

Kenmore , Microwaves , Appliances
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1 Answer from this member:
Manage My Life
There are 2 fan motors in your microwave. I assume you mean the exhaust fan is not always coming on. Several things could be causing the fan to not start correctly. Some possible parts are:

The fan motor.

The control board.

A loose wire to the fan.

You would need a technician to test the circuits to find the problem. If your microwave is more than 5 years old, it might be time to think about replacing it.
by Manage My Life
March 5th, 2008
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