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Magicchef over the range microwave loses display and power

When popping popcorn microwave loses all power after popcorn is removed and door is closed. about 20 to 30 min. later power is restored but clock is reset? what sensor or overload protection would cause this? no problems cooking anything else?

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Re: magicchef over the range microwave loses display and...

It sounds like your magnetron is overheating and its thermostat is resetting.

Try it with a cup of water in one corner and see if that helps.

Otherwise, most manufacturers have a warranty of several years on the magnetron.

For info on that, visit

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

Posted on Dec 08, 2007

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Frigidaire microwave not heating over the range


Try to cook something simple such as microwave popcorn. If the unit does not light up or turn on, check the outlet with another appliance to make sure the outlet is functioning correctly.

Check the fuses or circuit breakers in you house. If the outlet does not work after testing it with another appliance, try to plug the microwave in a different outlet.

Check the hinges and door hooks to make sure the door is closing properly. Look to see whether a small piece of food is clinging to the door, preventing it from closing all the way. Check the release mechanism and the rotating plate to make sure they can move freely as well.

Plug in the microwave and start it a the bag of microwave popcorn inside. If the lights go on but it is not producing heat, listen and try to hear whether the unit sounds the way it usually does. If it does not, there might be problems with the circuit board. This will need to be repaired by a certified Frigidaire professional.

Check the display that shows the time and power. If the display is flickering but it does not alter the operation of the microwave, it is not a problem. If, however, the lights flicker and your food is not heating, there may be a problem in the microwave cabinet.

Listen for buzzing sounds. If there is a buzzing sound and no heat is being produced, you may have to get a new magnetron, power diode, or high-voltage capacitor. These can be purchased from a Frigidaire retailer.

Look at the handle on the door. The most common complaint about all models of the Frigidaire microwave, according to, was cracked or broken door handles. Frigidaire will replace faulty handles while the oven is under warranty. In many cases, they will replace the handle even after the warranty expires for a "reasonable" amount of time.

Oct 04, 2011 | Frigidaire 1.6 Cu. Ft. Over-the-Range...

1 Answer

How Long Do You Microwave the popcorn ? It Won't Ever Pop !!!!!

It varies with the wattage of the microwave and the brand of popcorn, to a lesser extent. Generally, higher wattage machines take between 3 and 3.5 minutes. The best way to do it is to let it pop until the popping slows down considerably, then stop. Remove the bag immediately, shake and then open, releasing the steam so the popcorn won't be tough.


Jan 18, 2011 | Viking VMOC205SS Microwave Oven

1 Answer

I have a daewoo countertop microwave/convection oven and I can't pop popcorn. It pops only half of the popcorn and burns what it pops. What's the deal?

Check the power setting it may be too high and are you useing microwave popcorn?you generally can not use standard popcorn in a microwave.The power setting required is on the bag of microwave popcorn

Dec 29, 2009 | Daewoo KOR-63D5 Convection/Microwave Oven

1 Answer

Microwave burns popcorn. what part is defective?

If the microwave functions normally while cooking everything else, but is only burning popcorn, there is no component problem that will cause this. You cannot adjust or replace any internal component to make it not burn popcorn. All power levels and program options are contolled by the consumer at the control panel. Refer to your owner;s manual for their recommendations.

If the oven is equipped with a popcorn feature button, it is programmed for a recommended power level and time. This is an ESTIMATED program feature. The manufacturers of both the oven and the popcorn will also give directions that tell you to turn the oven off when the popping slows to about a pop every 2 seconds. Failure to do so can result in burning.

If the microwave does not come with a popcorn feature button, the manufacturers of the popcorn have directions on the outside of the box that tell you what POWER LEVEL and TIME to set the oven on for the desired result. Again, the you still have to listen as the bag pops to ensure it does not burn.

In addition, on some microwave ovens, there is a feature that allows you to select the SIZE of the popcorn bag. Some popcorn manufacturers have smaller snack size bags that don't take as long to pop. You have to select the appropriate size to get the correct program option.

In any case, you never are to place popcorn in a microwave oven and walk away from it. All these program features are ESTIMATIONS based on manufacturers testing and recommendations for the best results. All microwave ovens are different and operate at different power levels. Your best judge is to listen as it pops.

I hope this helps you.

Dec 23, 2009 | GE XL1800 1100 Watts Microwave Oven

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Popcorn Castastrophy !!!

You would have to remove the top cover and check to see if the main fuse is blown. Usually a 20 amp slo-blow. There are thermal cut out devices, they will reset when the unit cools, so plug it in the next day and see if the clock and power is back up. good luck, Dale

Aug 06, 2009 | Magic Chef Microwave Ovens

1 Answer

Can't pop popcorn well

It's 850 Watts, 0.9 cu ft.

That's enough for popcorn, but a magnetron does lose power once it starts to age.

The figure I've heard is an average life expectancy of 2000 hours for a magnetron.

Two "Band-Aid" suggestions for better exposure and more even heating:

1. Place the popcorn bag on top of an upside-down paper plate.

2. Place the bag off-center instead of dead center. Placing food in the center of the turntable is not as efficient as placing it off-center.

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

Dec 12, 2008 | Welbilt MR95TW Microwave Oven

2 Answers

Keeps blowing breaker

Did you call Samsung's Service Division at 800-932-3837?

They may be able to give you a better number to call.

If you don't have them, you can download Samsung over the range microwave installation instructions here.

Please let us know what you find out.

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

Oct 22, 2008 | Emerson MW8987B/W Microwave Oven

4 Answers

Dacor Microwave/Conv Oven DCM24S

Placing the bag on an inverted glass bowl or pyrex casserole dish worked!!!!!  For 2 years, I have cursed my Dacor microwave for its inability to make popcorn (burns a hole in the bag, bag stays flat, almost no kernels pop, etc...)  I read the last suggestion to use the glass plate and I am now sitting with a bowl full of perfectly popped popcorn - with only 1 kernel unpopped.  The metal tray in the microwave conducts too many waves through the bag I guess.
Thanks for the solution!

Apr 15, 2008 | Dacor DMT2420 1200 Watts Microwave Oven

1 Answer

Does a microwave lose cooking power over time? having a problem cooking popcorn. whirlpool built in unit 18 yrs old. takes 4-5 min on high and cant cook most of it. more time just burs popcorn. i believe...

Yes. As the magnetron (The microwave generator) ages with use it becomes less efficient. As such it produces less powerful microwaves and loses penetrating

Apr 04, 2008 | Microwave Ovens

9 Answers

Magic Chef MCO153UW

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.

Jan 06, 2008 | Magic Chef CMV1000B Microwave Oven

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