Question about Kenmore 62622 Microwave Oven

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Kenmore 721.63662300, 1200W

It started making a high pitched buzz or arc sound when first cooking for about 2 -3 seconds into the cook time. Now it doesn't make that new noise, it warms food some, but does not heat well.

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  • mad dawg Dec 29, 2007

    My Kenmore over the range microwave recently started making a loud buzzing sound.  When that happens, it doesn't heat up the food, and appears to smoke and smell funny.  The microwave is about a year and a half old.  Any suggestions?

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The magnatron is shorting and overloading the high voltage transformer which is complaining with a load noise. Worth fixing if you do it your self. Magnatrons cast about $40 wholesale. There are just a few varieties of them that fit almos all brands. Try www.partstap.com

Posted on Dec 31, 2007

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Posted on Jan 02, 2017

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