Question about Whirlpool MH7135XE Microwave Oven

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Whirlpool Microwave No longer Heating Food

Hi,

I'm hoping someone will have a pretty good idea as to what's wrong. I've read the other posts, but what led to my oven not working is a bit different.

I was using the microwave to warm a sauce, which it did at the time. I pressed the exhaust fan button since I was also using the range top and the only thing that happened was a very loud pop that made my left ear ring for about 10 minutes. The exhaust fan never came on and after that the unit stopped heating and sounds different now. The over-the-range light and exhaust fan still work, so does the turntable, but the unit no longer heats.

Thanks in advance.

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  • sterling_97 Jul 09, 2008

    The 'fix' info was right on! Thanks so very much!

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1 Answer

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  • Whirlpool Master
  • 8,820 Answers

The most common cause of that is a shorted or blown high voltage rectifier diode.

If you or someone you know wants to look into this, we have critical safety, disassembly, and troubleshooting info at our site, and our link is at our listing here on FixYa: http://tinyurl.com/yzjozk

More info here: http://www.gallawa.com/microtech/diode.html

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

There should also be a "mini-manual" hidden inside the unit behind the control panel or hidden on the left side behind the grille, which is very helpful when troubleshooting & testing.

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

Posted on Jul 04, 2008

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