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Kenmore Microwave 88523 BUZZING with door shut, malfunctioning.

Loud Buzzing when plugged in and door shut, familiar to a florescent light fixture ballast that is ready to blow. VERY hot in a short few seconds, not processing or cycling properly. Dangerous.

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6ya6ya
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Posted on Jan 02, 2017

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fridgetech
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SOURCE: Microwave keeps blowing fuse

If it blows the fuse as soon as you hit the START button, it's almost certainly a shorted high-voltage capacitor.

If it blows a few seconds after you hit the START button, it's probably the high-voltage transformer. You'll possibly also smell a faint electrical burning smell from the rear vent after you shut if off.

If it blows the fuse as soon as it's plugged in, you probably have a shorted door switch, a shorted varistor, or an internally exposed wire shorting to the chassis, etc.

Posted on Nov 19, 2007

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MicrowaveSvc
  • 9047 Answers

SOURCE: Microwave buzzing and hot when not in use

The brand and model number can help us pinpoint it, but it sounds as though it is cooking.

It also sounds like the cooling fan is not running durng this error condition, which could overheat and destroy the magnetron.

I would suspect a bad door switch or door switch mount, or possibly a stuck relay on the control circuit board.

Please reply back with your brand and model so we can help further. Thanks.

Posted on Dec 05, 2007

MicrowaveSvc
  • 9047 Answers

SOURCE: Microwave keeps blowing fuse

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.



Here are some links with info on part testing:



http://www.microtechfactoryservice.com/cap_test.html
http://www.microtechfactoryservice.com/diode.html
http://www.microtechfactoryservice.com/mag_test.html
http://www.microtechfactoryservice.com/xformer.html




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



Please write back with your brand and model number if you need further help.



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

Posted on Jan 13, 2008

  • 112 Answers

SOURCE: Kitchenaid builtin microwave buzzing

I would recommend changing the diodes as well. This will usually take care of the problem.

Posted on Oct 25, 2008

MicrowaveSvc
  • 9047 Answers

SOURCE: Kenmore microwave making loud buzzing sound.


We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.


Posted on Mar 06, 2009

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Kenmore microwave making loud buzzing sound.



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My Microwave flickers and buzzes


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