Question about Microwave Ovens

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Microwave isn't cooking.

My (over the stove) microwave which I have used for 3 years, stopped warming food this morning.  It sounds normal.  It spins as usual.  The light comes on as usual.  But, the food doesn't get warm.  I've checked the power level (which is on 10 as it should bee). 

What can I do?

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  • Microwave Ovens Master
  • 9,098 Answers

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: http://tinyurl.com/yzjozk

We're happy to help and we appreciate your thoughtful rating of our answer.

Posted on Nov 26, 2007

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  • Master
  • 473 Answers

Most likely it has a problem in the high voltage section of the microwave.  For safety this should be checked by a professional.  Look in your manual because some high voltage parts i.e. magnatron, transformer, diode, capacitor have a longer warranty than just 1 year.  Would appreciate a solved rating for expert advice.

Posted on Oct 21, 2007

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