Question about GE JES1039 Microwave Oven

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Runs but wont heat up

I just tried to pop popcorn and nothing happened. It ran the full 3 mins. and never even got warm. What's up with that? Runs normal,just doesn't cook.

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Re: runs but wont heat up

Quite often this is due to a bad door switch. Opening the door while cooking (without first hitting the STOP button) is the primary cause of door switch failure.

Posted on Sep 20, 2006

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Re: runs but wont heat up

Probably magnatron is bad. Best test is to substitute a known good one. There are others but you are in the 4000 volt area of the unit.

Posted on Aug 20, 2006

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Shut's off after cooking popcorn, only popcorn, won't restart for 15 too30min.

Sounds like the magnetron is over heating. Try putting a 4 0z cup of water in the oven along side the popcorn bag. See if this helps. Usually, the oven only runs 2 to 2.5 minutes for a bag of popcorn. You may have to experiment with the slightly different cooking time...

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We can't get our microwave to fully pop the bag of popcorn. If we use the popcorn button it stops before the bag even starts popping. If we preset the time, the same occurs and if we run it until its...

Always place the bag of popcorn on an upside-down paper plate.

This allows more microwaves to penetrate the bag from the bottom.

Also always place food of any kind in the microwave off-center on the tray, NOT in the middle of the tray.

Not only does it cook more evenly (think of how you stir liquid) but it also prevent the same spot from being heated repeatedly on the glass turntable, which can lead to overheating and breakage.

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

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

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The cooling fan is a must!

Otherwise, the magnetron will be ruined, and that drives up the repair cost.

If you or a friend decide to work on it, we have *critical* safety, disassembly, and troubleshooting info at our site, and our link is at our listing here on FixYa:

You can order parts here:

To contact Magic Chef about getting an *authorized* servicer, see:

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

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We had the same problem with our brand new Magic Chef. Before going through the trouble of taking it back I called Home Depot. After talking to a Home Depot Rep I am told that the overheat sensor is under the glass plate directly beneath the popcorn bag. Popcorn gets very hot and the heat of the popcorn causes the sensor to shut the machine down. I would imagine this would be the same for a baked potato.
Very poor design.
I was told to put a microwave safe plate down and put the popcorn bag on it. This should help to reduce the heat and not trip the sensor.
A safety sensor is great, but not if it keeps tripping the machine and shutting down!

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Time to buy a new microwave as it sounds as if the control panel is defective. A new control panel for this micro will run about 95 to 120 bucks + labor depending on where you buy it. I happen to like slightly burnt popcorn as well!! Nothing wrong with thats, as they say great minds think alike.

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