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KitchenAid KHMS2050SSS 1200 Watts Microwave Oven stopped heating

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Hello there and welcome to fixya
there are a few things than may have happned i will post the most common ones first ok If the microwave oven doesn't heat the magnetron tube might have burned out. The magnetron uses high voltage, high current DC power to generate the microwave frequency that cooks the food. If the microwave oven is turned on when it is empty this can cause the magnetron to burn out. Once it is burned out it has to be replaced, it's not repairable.
Next ks the thermal fuze
If the microwave doesn't heat the thermal fuse may have blown. It can be tested for continuity. Watch our fuse testing video for more information.
and finley
If the microwave doesn't heat the main control board may be defective. This is not common. When a microwave doesn't heat the problem is usually a faulty door switch or within the high voltage circuit; either the high voltage capacitor, diode, transformer or magnetron.

Posted on Jan 16, 2013

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6ya6ya
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Posted on Jan 02, 2017

scottowa
  • 87 Answers

SOURCE: Whirlpool MH1150XMQ 1000 Watts Microwave--NO HEAT

About 95% of the time it is the magnatron. If the microwave is under 5 years old that part is often covered under warranty. I would check your manual. If not the p/n is 8206335 and it's about $80 and fairly easy to install. I just looked and the magnatron is covered.

http://www.managemyhome.com/mmh/lis_pdf/OWNM/L0523111.pdf

Labor to replace it would be about $125

Posted on Mar 04, 2009

MicrowaveSvc
  • 9047 Answers

SOURCE: The number display on my Sharp R-515EK 1200 watts microwave oven

We regularly repair these control / display units for customers nationwide by mail for $39.95 postpaid in about a week or so with a one-year guarantee.

Feel free to contact me directly (and please remind me of your full model number from the tag on the unit) for more information & help.

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

William E. Miller, AS-EET
prototech@usa.net
http://www.microwavedisplay.com
Microwave Oven Control Panel Repair Nationwide

Posted on Aug 31, 2009

MicrowaveSvc
  • 9047 Answers

SOURCE: GE JES1358 1200 Watts Microwave oven that does not heat

There should be a "mini-manual" hidden inside the unit behind the control panel or hidden on the left side behind the grille, which is very helpful when troubleshooting, & testing.

dee77f7.jpg

At
our Web site, we have a video available showing how to remove a typical over the range control panel assembly in under 5 minutes.

A loud buzz, hum, or groan is usually a shorted high voltage rectifier diode, but a sound like gurgling into an empty coffee mug is one symptom of a failed magnetron, and yet the mag can be bad without that sound.

Here are some links you or someone you know can use (in order given) for high voltage section test help, but read the safety warnings first:


http://www.gallawa.com/microtech/diode.html
(if it is NOT shorted or burned looking, it's probably fine)


http://www.gallawa.com/microtech/mag_test.html
(continuity can be good even though mag is bad!)


You can find links to helpful exploded view diagrams and part ordering help here.

I'd recommend that your bookmark this link to your favorites.



Accessing some parts may require you to pull the oven from the wall and remove the cover.

If so, the installation instructions are very handy, and it's best to have

two people since the microwave can be heavy and awkward.



You can download GE owner's manuals and installation instructions here.


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.

If it's within the magnetron portion of the warranty G.E. will send you the magnetron to do it yourself. Call them at 888-239-6832.

Be persistent. You may have to speak with a supervisor.


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

Posted on Nov 29, 2009

heatman101
  • 43501 Answers

SOURCE: Amana ACM2160A 1100 Watts Microwave oven doesn't heat

Hi,
Here is a tip that will help you to figure out what is wrong with yourMicrowave Oven....

Microwave Oven Basic Troubleshooting Tips

heatman101

56ik

Posted on Sep 30, 2010

heatman101
  • 43501 Answers

SOURCE: Thermal fuse needs replacing.

Hi,
Here is a tip that will help you to figure out what is wrong with yourMicrowave Oven....

Microwave Oven Basic Troubleshooting Tips

heatman101
hjkj

Posted on Sep 30, 2010

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