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No heat when microwave in use

The turntable goes around and the motor goes but no heat at all.

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  • Microwave Ovens Master
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If there is no heating please do not switch on unless you have confirmed the fault. It is possible that the Magnetron is faulty, the temperature cut off is faulty or the main capacitor is short. It is also quite possible that insect can get into the oven and create soft spots. When you switch on these will create a short and make the voltage jump and in the long run damage the magnetron. Check this link to know how a microwave works:

http://www.espares.co.uk/advice/microwave/a/5/1443/how-a-microwave-oven-works.html

So Remove cover after disconnecting , check for dirt/moisture in the cabin, if so wipe clean and dry, check the magnetron and area clean and use an jet air to clean off. Check the wave guide covers, if food had deposited
then it must be checked or replaced. See link:
http://www.espares.co.uk/advice/microwave/a/5/1146/how-to-replace-a-microwave-guide-cover.html

Now keeping clear of the microwave, switch on; use a cup of water inside to test.
If you notice any sparks shut off as the magnetron or the main HT capacitor can be faulty. replace with same type.
If there is heating without any issues, you can use the microwave safely

Posted on Jan 12, 2013

  • ngatokorima nelson Jan 13, 2013

    Thank you so much Donald for all the helpful information, cheers : )

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SOURCE: Microwave turntable won't stop running

This is usually caused by either a bad door switch, but may instead be a loose door switch mount or a problem on the control panel.

Even though a door switch clicks, it may still be bad inside.

If you or a friend decide to look into it, we have critical information on safety, disassembly and door switches at our site, linked here on Fixya: http://tinyurl.com/yzjozk

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SOURCE: Microwave turntable makes noise

yes motor may be bad or something is stuck . its not difficult to change .it is located at the bottom and has a wire connector with 2 spade clips

Posted on Oct 31, 2008

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SOURCE: microwave oven not heating

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SOURCE: microwave turns on but doesn't heat. Turntable does not rotate

The magnetron (the part that heats the food) is probably done, they tend to go out if the fuse didn't blow and it usually isn't worth fixing as the cost of the magnetron is almost what it would cost to buy a new microwave.
Sorry for the bad news.
Benjamin

Posted on Mar 25, 2010

espressonist
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SOURCE: ge microwave jvm 1430 error code F3

F3 Key panel (touch pad) shorted This code will occur if a shorted key panel is detected continuously over 60 seconds. Replace key panel (also called touch pad).

Posted on Nov 04, 2010

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see this causes and proceed. God bless you
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Should the turntable rotate? Mine is not turning


Yes the turntable must spin around to ensure correct heating of food.

Replacement of the turntable motor should be carried out by a qualified appliance repair service.

YOUR SAFETY IS PARAMOUNT!

Attempt this only if you are competent.

But here is a basic method if you are mechanically minded and have electrical safety knowledge.

I am assuming the plastic coupler is not split or broken and causing the problem.

The motor assembly is fixed to the base of the oven usually with two screws and access is obtained usually by removing the inspection plate directly beneath the motor. It is usually a plug in synchronous motor that revolves at a few revs per minute but the plastic cogs in the motors gear box fail and the motor assembly must be replaced. They are fairly inexpensive and obtainable usually from a domestic appliance repair shop.
If you feel confident, disconnect it from the mains power, remove anything in the cavity and turn it upside down if it is a tabletop model, a little more complicated if it is built in!
Remove the inspection plate, sometimes it must be cut out with sharp cutters, and disconnect the motor. Remove the motor and go and get a new one. Fit the new motor and fit the inspection cover back on the base by turning it to fit and using an extra screw fix it then put the microwave back in its position. Plug it back in, with the turntable and plate. Put a cup of water on the plate inside of the oven and heat for 20 seconds to check the plate goes round.
Hope this helps.

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1 Answer

GE microwave oven squeals as carousel is rotating. Noise stops in a minute or so but begins anew when the unit is used again.


If it is the wheel on the turntable that squeels, wash the turntable in strong solution of washing up liquid and water.
If it does it without a turntable fitted, change the turntable motor.

Replacing the turntable motor.

The motor assembly is fixed to the base of the oven usually with two screws and access i obtained by removing the inspection plate directly beneath the motor. It is usally a plug in synchronus motor that revolves at a few revs per minute but the plastic cogs in the motors gear box fail and the motor assembly must be replaced. They are fairly inexpensive and obtainable usually from a domestic appliance repair shop.
If you feel confident, disconnect it from the mains power, remove anything in the cavity and turn it upside down if it is a tabletop model, a little more complicated if it is built in!
Remove the inspection plate and disconnect the motor. Remove the motor and go and get a new one. Re fit it and put the microwave back in its position. Plug it back in, with the turntable and plate. Put a cup of water on the plate inside of the oven and heat for 20 seconds to check the plate goes round.
Hope this helps.

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1 Answer

My microwave oven turntable will not rotate. How should I solve the problem? Also if I just leave it and carry on using it does it matter? Model MICROMAT 21T-W


It is rather important having a turntable that revolves. Just as a matter of interest, place a refridgerated jelly in the microwave and watch as heat is only applied at one point!

Replacing the turntable motor.

The motor assembly is fixed to the base of the oven usually with two screws and access i obtained by removing the inspection plate directly beneath the motor. It is usally a plug in synchronus motor that revolves at a few revs per minute but the plastic cogs in the motors gear box fail and the motor assembly must be replaced. They are fairly inexpensive and obtainable usually from a domestic appliance repair shop.
If you feel confident, disconnect it from the mains power, remove anything in the cavity and turn it upside down if it is a tabletop model, a little more complicated if it is built in!
Remove the inspection plate and disconnect the motor. Remove the motor and go and get a new one. Re fit it and put the microwave back in its position. Plug it back in, with the turntable and plate. Put a cup of water on the plate inside of the oven and heat for 20 seconds to check the plate goes round.
Hope this helps.



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1 Answer

Sharp microwave (R-959m) turntable not moving


Sounds like a new turntable motor is required.

Replacing the turntable motor.

The motor assembly is fixed to the base of the oven usually with two screws and access i obtained by removing the inspection plate directly beneath the motor. It is usally a plug in synchronus motor that revolves at a few revs per minute but the plastic cogs in the motors gear box fail and the motor assembly must be replaced. They are fairly inexpensive and obtainable usually from a domestic appliance repair shop.
If you feel confident, disconnect it from the mains power, remove anything in the cavity and turn it upside down if it is a tabletop model, a little more complicated if it is built in!
Remove the inspection plate and disconnect the motor. Remove the motor and go and get a new one. Re fit it and put the microwave back in its position. Plug it back in, with the turntable and plate. Put a cup of water on the plate inside of the oven and heat for 20 seconds to check the plate goes round.
Hope this helps.

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1 Answer

Microwave turns on but doesn't heat. Turntable does not rotate


The magnetron (the part that heats the food) is probably done, they tend to go out if the fuse didn't blow and it usually isn't worth fixing as the cost of the magnetron is almost what it would cost to buy a new microwave.
Sorry for the bad news.
Benjamin

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