Question about Microwave Ovens

2 Answers

Microwave not working

We have an "over the range" Whirlpool Roper microwave. All of a sudden, the microwave stopped working, i.e., it does not heat up at all inside. All of the other features seem to be working....the timer, the interior lights, sound, etc. But, all food items are stone cold when you take them out of the oven. Do you have any idea what the problem may be?

Thanks for your advice!


everything else works fine but food is as cold as it was when you put it in.

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  • 3 more comments 
  • kehinde Dec 01, 2007




    it does not work but other seems to work


  • Anonymous May 17, 2008

    not sure if my problem is the door hinge or any of those problems, my microwave is barely 1 year old....same as list above, timer, clock....runs....fan works...hood light, doesnt smell of any odor, no rough running sounds, just oneday quit heating food. i had heard that a lot of above the range mircowaves go bad due to the heat from the range, we have a new smooth top range that gets hot very fast ....we do a lot of cooking, any advise would be great, not into replacing microwave every year....lol

  • Anonymous Jul 07, 2008

    I have found that I have a bad door switch on my Samsung MS6745G microwave. It intermittantly will not turn on. I contacted Samsung's parts distributor J&J International and they have no record of making a MS6745G microwave and have no knowledge on part numbers.

  • seshkumar Oct 01, 2008

    i have LG micro oven. magnetron failure causes no heating of food items.
    rest other OK [timer, light,table rotation LG service replaced magnetron
    four times.they work for 30 minutes and fail. still problem not resolved.

  • Anonymous Jan 06, 2009

    Please can someone advise:
    If a microwave is heated without nay food inside for approx 5 mins - could this stop the microwave from funstioning again? NOthing seems to be working. Sound like Wear and Tear or a mecahincal failure - but not too sure.....any ideas?

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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 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: http://tinyurl.com/yzjozk

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

Posted on Nov 30, 2007

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Wiring digram for kenstar micro oven

Posted on Aug 05, 2009

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Microwave not working


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

There should be a very helpful "mini-manual" hidden inside the unit behind the control panel.

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

Nov 28, 2007 | Microwave Ovens

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