Question about Microwave Ovens
According to my knowledge, this particular stove doesn't have fuse(s) as such. They have been prone to failure issues with the temperature control regulator which is located behind the control panel. Be certain the stove is unplugged before attempting to work on any part of this appliance.
Posted on May 02, 2017
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Posted on Jan 02, 2017
The control panel has built-in surge protection, and the high voltage probably tripped that. It will have to be repaired, which we do nationwide for only $39.95 postpaid. By rights, I would say the electrician should be the one to see to the repairs, including removing the control panel assembly to send in for repair. We have *critical* safety & disassembly info at our site, which is linked at our listing here on FixYa: http://tinyurl.com/yzjozk You can find helpful exploded view diagrams by entering your full model number (without the suffix) here: http://tinyurl.com/gv383 Please let us know if you have any other questions.
Posted on Apr 13, 2007
If you measure across the varistor leads with it still in the circuit, you should measure around 100-300 ohms, which is the DC resistance of the primary of the low voltage transformer.
If you read infinity / open the primary of the low voltage transformer is bad.
If the varistor is bad, it will be shorted and usually it will be cracked or split. This is a much simpler way to test the varistor.
Have you checked the magnetron thermal cutout (TCO) (or thermostat if so equipped) and the oven TCO? These are the leading causes of a dead GE when the fuse is okay.
You didn't mention the model number. What is it?
Please reply back here if you still need help.
We're happy to help you. Once we have all your information and offer a final solution, we'd appreciate your thoughtful rating of our answer.
Posted on Jul 18, 2008
That's almost always a defective filter capacitor on the control circuit board.
We regularly repair such control units for customers nationwide by mail for $39.95 postpaid in about a week or so with a one-year guarantee.
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.
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
Posted on May 20, 2009
That fault is a little tricky. Need to check if you are getting voltage onto primary of transformer. If you are, the problem is almost certainly the magnatron which has gone open circuit. If and when you replace it, change the cap and HVdiode. Wont be sorry if you do. If no voltage there , your board is faulty. replace it.
Posted on Sep 17, 2009
If you have all ready changed out the fuse and it has happned again i would first check to see that the fuse is the right one for the machine (i am sure that you did this but please recheck ) next i would look at the controle board as the next culprit it maay be failing expecially if there were any pops ar sparks that was noticed before the initial failure.
Also check to see if all of the wires by the board a re not loose or looked burned ar if there is any grease or anything like this around the area
And finally check to see if the plate is turning ok and not sticking cause this would cause the microwave to overload and it wil make every fuse you put in there fail after just a couple of uses ok
SO please try all of these things that i have explained to you
I hope this is very helpful for you.
Best regards Michael
Posted on Dec 12, 2009
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