Question about Emerson MW8987B/W Microwave Oven

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It turns on but it doesn't heat anything. It's new only 2 months old.

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Sounds like the magnetron has failed. This is the component that produces the microwave that heats the food. The cost of the magnetron is about 95% of the cost of a microwave . Most people don't, for this reason, replace the magnetron, they replace the whole oven which is probably what you will end up doing. There is a possibility that the circuit that provides power to the magnetron is faulty and you need to take it apart, find the proper electrical leads and test them with a volt meter. To do this you have to remove it from its mounting and take it apart. It is a fairly lengthy process however.

Benjamin

Posted on Jun 26, 2009

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We just installed a Kenmore 85600 over the range microwave. It is brand new in the box but we bought it from someone. We just got it installed and it doesn't heat anything. Does that mean the magn


Yes! it is a real possibility, or the inverter board is defective. Since it is brand new, have the person who you bought it from take it back to the place of purchase because he is the original buyer and the one with the warranty.

Apr 19, 2012 | Kenmore Microwave Ovens

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As soon as i try to cook anything it blows the breaker, its only 2 years old doesn't start cooking at all just as soon as you hit start the breaker blows my model is a nn-sd297 of course it's 2...


The service manual is here.

You can order parts from Encompass here.

It may be a bad monitor interlock / short switch, or possibly a shorted capacitor or other problem in the inverter.

But I'm surprised the 20A fuse is not blowing before the breaker is!

I hope it's on at least a 30A breaker...

Let me know if I can help further.

Sep 14, 2011 | Panasonic NN-P295SF Microwave Oven

1 Answer

I have a keurig single cup coffee pot and after 6 months it strted to act up. I would have it plugged in and it wouldnt brew the coffee. you could not push the blue lit button because it would never...


i hear ya but it sounds like you need to send it back its so new you could get a new one just like it wait a week and return the old ,if you dont have a warranty or receipt for the other dont get cheated

Jan 23, 2011 | Microwave Ovens

1 Answer

It is only about 11 months old and the turn table moves and it sounds like it is working, but it is not heating. it is a GE countertop model. If it is a circuit board will it cost more to repair than to...


If it is running and not heating the problem will most likely be in the heating element which is called a 'magnetron' before you throw this away check with your owners manual, most of these have a 1 year warranty on the microwave.

Apr 20, 2010 | GE Microwave Ovens

1 Answer

Put a hot pocket in for 3 min and it doesnt even


the unit inside the microwave that heats called the "magnetron" has gone bad or the circuits that power the magnetron have failed. if its under warranty still, send it back to the manufacturer. if not you can call some repair shops and see how much it would be to service it, but its most likely going to be cheaper to purchace a new microwave since they are relatively cheap these days

Jan 14, 2010 | Microwave Ovens

1 Answer

Sanyo microwave model em-s5002w won't heat...sounds louder


Sounds like a component failure in the microwave circuit.

It will be one or more of the following -

Fuse
Diode
Capacitor
Transformer
Magnetron

Reply back and I can help you more. These failures happens to new or old microwaves.

Feb 01, 2009 | Microwave Ovens

1 Answer

3 microwave ovens in 18 months - all won't heat up - what is causing the recurring problem?


Carla, Sorry to read of your troubles. Your unit that is only 2monts old should be under warranty, or did you receive any warranty?
What you describe as " the noise one gets when metal is put in by mistake". The noise is Arcing of Microwave Energy. Do not operate a Microwave Oven DRY (without something inside that will absorb the Microwave Energy. A Dry-Run Microwave Oven will feed-back upon itself and do damage.

If your unit is matched to the electric needs, both voltage and cycles, then I would not get another one of the same Model.

Feb 02, 2008 | Microwave Ovens

1 Answer

No heat


If you can't fel the cooling fan blowing air out the back, then that increases the chance you have a bad magnetron. Since this is 1-1/2 months old, it is still under warranty. I would call GE or Sears for warranty service. If you break any seals opening it up, you'll void the warranty. It's almost certainly not the capacitor, those virtually always short when they fail, resulting in a blown fuse. If the transformer's bad, there is often the smell of electrical burning, but the cooling fan may weaken the smell. Try smelling the fan exhaust after it has run. It's most likely the magnetron, from my experience, but it could be a shorted HV diode. Some GE models sem to have had a batch of bad magnetrons, but I don't know if they have publicly acknowledged that. Again, since it's under warranty, the best bet is to call the manufacturer or an authorized GE servicer. You can find those numbers in your owner's manual and need to have your sales receipt handy of course when you call. Good luck.

Oct 17, 2006 | GE JVM1650SH Microwave Oven

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