Question about Samsung SMH9187ST Microwave Oven

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SMH9187ST runs but doesnt heat

Cooked a plate of bacon (no issues), went to cook a second plate and it wouldn't cook. Everything else appears to work (light comes on, counts down, table turns, can even hear the "humming" of the magnetron). Doesn't heat (sometime barely heats) food.

Posted by Anonymous on

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Posted on Jan 02, 2017

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MicrowaveSvc
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SOURCE: Not heating food

While it's possible it could be a door switch or mount, it's most likely a bad magnetron or a bad connection at the magnetron or on the control board. If you or a friend decide to work on it, we have *critical* safety, disassembly, and troubleshooting info (as well as a text file which helps in diagnosing and repairing door switch problems) at our site, which is linked at our listing here on FixYa: http://tinyurl.com/yzjozk You can order parts for Samsung models here: http://www.samsungparts.com/search/search.asp

Posted on Apr 25, 2007

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heatman101
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SOURCE: samsung mw87L microwave does`nt emit heat, light

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Posted on Sep 30, 2010

2coolrick
  • 560 Answers

SOURCE: My samsung microwave oven is

if your microwave does everything you have described , and you can hear the cooling fan running as well after you press the start button , you probably have a faulty wave guide. The wave guide is also called a Magnetron Tube. It is the main part of the microwave which produces the microwave energy . If this part is not functioning it is best to replace the entire unit, rather than have it repaired .

Posted on Oct 03, 2010

  • 6771 Answers

SOURCE: the microwave will not heat food. It will turn on

This seems to be a common problem, there are three parts that will cause this, the magnetron "heats food" a common failure, the high voltage diode and capacitor are the other two culprits. The cost to repair will approach the price of a new oven.

Posted on Feb 01, 2011

  • 184 Answers

SOURCE: The microwave does not heat

Hi!

The most common cause of the problem you described is a burned fuse. It is normally located inside the case, directly on a wire leading from the transformator to the magnetron. If you are not sure about those parts, please get a professional to fix the issue.

Good luck!

Posted on Aug 20, 2011

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Although bacon can be cooked in a microwave, cooking any low water content food is ******* an oven, and can shorten the lifespan of the magnetron.

The smoke you're seeing is probably from the grease in the bacon. However, there's a slight chance it's from the power transformer as these sometimes fail slowly. You should be able to tell from the type of odor.

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Sorry if you misunderstand, but I offer free advice so you or someone you know can fix things yourself.

Chances are you have a bad magnetron or other high voltage part, but I won't bother you with details now.

You take care of yourself.

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