Question about GE Microwave Ovens

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Micro wave went dead during timing operation.

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A microwave can be dead for many reasons.

Please reply back with your brand and model number and more details so we can help you.

It may be the fuse, which is usually located on the floor of the oven behind the control panel or between the door switches.

If the fuse is good, it may be an open thermostat or thermal cutout (TCO) / thermal fuse on or near the magnetron or on top of the cavity / body of the oven.

If it goes dead for a while during or after cooking then comes back on, the magnetron is probably overheating and causing the magnetron thermostat to open.

Then when it cools, it closes the circuit and allows power through again.

When checking thermostats, if it has a hood fan thermostat, that should read open, as opposed to the others, which should read closed.

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.

If it goes dead or blows the breaker (or GFI) when you plug it in or open or close the door, then there's a problem with a door switch or door switch mount.

If it's intermittent or random, it may be a bad connection, usually on the control board or a loose fuse holder, or even an intermittent fuse.

You should do a continuity test on the fuse while it's in the holder (with the microwave unplugged, of course) then turn the fuse by hand or take it out and put it back in, then test it again.

If you remove the fuse, then press the meter leads against the ends, it can allow internal contact to be made and make a bad fuse appear to be good.

If you or someone you know decide to look into it, we have critical safety information and disassembly information at our site, and our link is at our listing here on FixYa.

There may also 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.

You can usually find helpful exploded view diagrams and order parts for many brands by entering your full model number here.

Please reply back with your brand and model number and more details so we can help you.

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

Posted on Jul 23, 2008

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1 Answer

Why would my kenmore micro wave model 721.66463500 just go dead, no power


There may be a weakened connection around the main power supply 'Transformer'. Sometimes the connections can overheat but if they are removed and replaced it may again make contact. I've had a similar problem and found parts from similar brands to replace the connecting/wiring parts. I soon realized that I could have removed the extra pieces around the wires without causing any electrical problems. That is the minor repair. The major repair would be to replace one of the main features (large or small) which assist the transformer in power functions. Take your time examining the tiniest parts and pieces.

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Leave the wire tie on a loft of bread and put in you micro wave oven to defrost. The next thing you might see is a load bread burning, instant toast. ----The use of micro wave were invented by the British before WWII. The mega tron tube generation very high frequency radio wave and these wave struck an object 100 miles away some of this beam energy would balance back to a receiver-----You have Radar.... I wish you and your family well being and be careful of micro wave ovens it can burn from inside out. GB you...stewbison

Aug 22, 2011 | Microwave Ovens

1 Answer

My Emerson microwave is about 2 years old. I washed it just like I do every week and the power went out on it.


you mean it want power up or want work when you press the star buttom?
1. check the fuse if no power.

2. If it doesn't work when closing the door after setting timer it is the micro switch that the metal lach hits when the door close.

3. unpluge the micro wave unscew the scews to the cover of the microwave remove the cover. up front by the door you will see the micro switch maybe (brown,black,white,red/white ) what ever color it is disconet it take it to the hardware store buy a new one and replace it,themreasemble your micro wave.

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1 Answer

HOW DO WE VENT THE EXHAUST OUT THE TOP OF OUR MICROWAVE when we turn the exhaust fan on it blows out the front but we thought it went out the top so we could vent through a cupboard, attic to the outside


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I hope I didn't confuse you. The only reason it's not blowing out the top is because whom ever installed it didn't move the panel. All over the stove micro waves come with this movable panel so you can vent it either way you want. If you have the installation papers, it will explain this better. Good luck.

Oct 17, 2009 | Frigidaire Microwave Ovens

1 Answer

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1 Answer

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1 Answer

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If not, maybe the dealer has that info?

Not sure if Rival US will help, but:

Rival
c/o JCS/THG, LLC
13120 Jurupa Avenue
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Telephone: 1-800-323-9519

Good luck.

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

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OLD Kenmore Microwave Oven


A microwave can be dead for many reasons.

If it goes dead for a while during or after cooking then comes back on, the magnetron is probably overheating and causing the magnetron thermostat to open. Then when it cools, it closes the circuit and allows power through again.

If it's intermittent or random, it may be a bad connection, usually on the control board or a loose fuse holder.

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.

If the fuse is good, it may be an open thermostat or thermal cutout on or near the magnetron or on top of the cavity / body of the oven.

If you or a friend decide to look into it, we have critical safety information and disassembly information at our site, and our link is at our listing here on FixYa: http://tinyurl.com/yzjozk
You can probably find an exploded view by entering your FULL model number here: http://www3.sears.com (the 3 is correct)

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1 Answer

Microwave over the stove


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.

It may also be a problem with a door switch or door switch mount.

If you or a friend decide to look into it, we have critical safety information and disassembly information at our site, linked here on Fixya: http://tinyurl.com/yzjozk
Please write back with more details if you need further help.

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

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