Question about Microwave Ovens

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The microwave was cooking, a few seconds later it ceased working

I cooked the porridge this morning in the microwave for three minutes. I then put in a cup of water that did not even get warm. Since then it will not cook? It appears everything else works?

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  • treborlertoc Feb 15, 2009

    Thank you for your quick response. I cooked the oats for breakfast in the microwave. A few seconds later I tried to boil a cup of water in the microwave but it remained cold. It appears that everything else is working except it is not cooking. Thank you!

  • Mark Egan May 11, 2010

    It sounds like either the door switch has failed, or there is a problem in the microwave circuitry or components.

    Reply back if you want to pursue the repair further, or check my Tips and Tricks for some insite as to how microwaves work.


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If it's not making a strong buzzing sound or anything out of the ordinary, it's probably the Magnatron. Most of the time that's what I find. It's the "antenna" that creates the microwaves. Some ovens carry a 5 year warranty on that part so I would check your manual. They are very easy to replace most of the time. They usually run about $100-$150.00

Posted on Feb 15, 2009

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