Question about Maytag MMV5207A Microwave Oven

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Blowing fuses The mwave is 2 months old. We just installed it a new Kitchen. We used this mwave about 2 weeks. The wife said it quit. I opened and checked and one of the 2 fuses blew. I replaced the fuse and it made a loud hum and blew the fuse again. Control panel and lights work ok untill fuse blows. I have been waiting 2 weeks for Maytag to get me service that doesnt seem to exist. Do you suspect t he diode or something else? Thank you

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  • William Miller
    William Miller May 11, 2010

    Is it a model MMV5207A as it's posted under?



    Which fuse blew? I only see one in that model.



    When does it blow?



    If it went dead almost immediately after pressing the Start pad, that's usually a shorted high-voltage capacitor.



    If it went dead a few seconds after pressing the Start pad, that's usually a failing high-voltage transformer.



    If it goes dead or blows the breaker when you plug it in or open or close the door, then there's a problem with a door switch or door switch mount.



    The high voltage diode won't make the fuse blow.



    Once I get more details, I may be able to narrow it down (for academic purposes, of course) but any unauthorized repair attempt will void the warranty.



    I hope they get the servicer out soon for you but feel free to clarify here.

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  • Maytag Master
  • 8,865 Answers

[double post]

If it went dead almost immediately after pressing the Start pad, that's usually a shorted high-voltage capacitor.

If it went dead a few seconds after pressing the Start pad, that's usually a failing high-voltage transformer.

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.

But I would wait until the authorized servicer gets there (or take it to them) to maintain your warranty.

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

Posted on Jul 04, 2008

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