Question about Maytag MMV5156AAS Microwave Oven

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Maytag microwave OVER the stove

Microwave making funny sound,food not cooking,and smells burning.

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  • chrisheato May 01, 2008

    Maytag MMV5156AAS 1000 Watts Microwave Oven-

    I have this model. Just before the Magnetron blows (I have replaced 4 of them now in the 5 years I have owned it-and the entire unit has to come out of the wall bracket and opened up by a trained technician-I did it myself 3 times, but it has to be unplugged and totally discharged carefully.) It will not heat all the way, or not at all intermittently. It will really smell terribly when it does blow. This last incident (2 days ago) the fins inside the magnetron totally twisted up. I am not sure if this unit is now worth fixing further . Magnetrons cost about $100.00 each time. If this unit continues to do this, it seems cost effective to get a new microwave entirely. The GE brand over the range type, seems to get good reviews on Consumer Reports. -Christine H.

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  • 8,820 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 connection on the control unit circuit board
- bad magnetron or other high voltage part (such as a shorted diode)

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: http://tinyurl.com/yzjozk

Here are some links you or a friend can use for test help, but read their safety warnings first:

http://www.gallawa.com/microtech/diode.html
http://www.gallawa.com/microtech/mag_test.html
http://www.gallawa.com/microtech/xformer.html

You can usually find helpful exploded view diagrams and order parts by entering your full model number here: http://tinyurl.com/gv383

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

Posted on Mar 02, 2008

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