Question about Kenmore 63662 / 63664 / 63669 Microwave Oven

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Heat reduced to maybe 50%

Bought in 2004. Has recently started running at about 50% heat. Was making a slight squeeking noise but once that stopped it reduced the heat. May be a coincidence... Any thoughts?


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Re: Heat reduced to maybe 50%

The stirrer may have been causing the squeaking noise, and the low heat is most likely the magnetron.

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 connection 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, and our link is at our listing here on FixYa:

Posted on Dec 05, 2007

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