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Microwave Problem Stopped heating. Comes on, fan runs, does not heat.

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Re: Microwave Problem

I would say it's most likely a bad door switch or switch mount or a bad connection on the magnetron or a bad magnetron.

But generally, the most common causes of a failure to heat are:

- bad door switches or door switch mounts
- loose connection at the magnetron
- problem or loose conneciton on the control unit circuit board
- bad magnetron or other high voltage part

If you or a friend decide to look into it, we have critical safety information, info on door switch diagnosis and replacement, and
disassembly information at our site, linked here on Fixya:

Posted on Nov 25, 2007

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