Question about Kenmore Microwave Ovens

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My Kenmore elite built in microwave oven model 790 488 03100 has stoppped heating what can i do

The oven is 16 months old and was working fine now it has stoped heating sears is no help at all everything looks and sounds like its working no heat the only thing that warms up on the inside is where the light bulb is i tried heating a cup of water 4 min on high no change in temp what can i do

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  • 69 Answers

It may be a bad fuse or capicitor. I have had a time in the past with something similar. I contacted Repair Clinic.com. They were very helpful with their advice and even followed up to make sure I got things fixed okay.

Posted on Dec 10, 2014

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Posted on Jan 02, 2017

MicrowaveSvc
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SOURCE: Kenmore Galaxy Microwave Hood Combo Model 72180002400

Since it sounds louder than before, it is probably a bad high voltage diode or magnetron.

If it's within the magnetron portion of the warranty (usually 5-9 years) but out of the original full warranty (usually 1 year), then your manufacturer will cover the part cost, but not the cost to visit you or the labor charge to do the work.

Here are some links you or someone you know can use for test help, but read their safety warnings first:

http://www.gallawa.com/microtech/diode.html
http://www.gallawa.com/microtech/mag_test.html

Sears may send you a magnetron to install yourself since it's under warranty. For that or warranty service, contact Sears at http://www.sears.com.

You can save about $75 by taking it to the shop yourself, as opposed to an in-home service call.

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

Posted on Aug 08, 2008

  • 1 Answer

SOURCE: Microwave won't heat food.

My Whirlpool microwave, over the stove, stopped working when my son used it to heat his food and a heavy sound came out, like something exploded in it. When I check it, there was nothing broke. Everything works fine except that it does not heat. I will appreciate any help

Nate

Posted on Nov 09, 2008

  • 1 Answer

SOURCE: Short circuited Whirlpool MH1150XM while changing the bulb underneath. Need help to fix it, thanks :)

We replaced the board behind the control panel. $130.00. If you do this make sure you can put the wires back the right way. My husband finally got it and our micro is working like brand newThanks to all who tried to help.

Posted on Jan 14, 2009

  • 1 Answer

SOURCE: Microwave won't heat food.

built in 3/94 is it worth fixing how much for magetron

Posted on Feb 12, 2009

  • 1 Answer

SOURCE: My microwave oven isn't heating my food.

Small component called a diode. Open up the microwave and try to find a black (usually) component that is most often connected between the magnetron (the thing that heats the food) and the chassis of the microwave oven (ground). I used to make a fortune replacing these! Costs about 5 bucks most appliance supply stores. Make darn sure you get one of the same value.

Posted on Apr 06, 2010

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You can usually find exploded views and order parts by entering your model number at the Sears parts site.

A full Sears/Kenmore model number has 3 digits, a dot, then 8 more digits, such as ###.########

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

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