My ge Profile microwave just stopped heating food/liquids. All else works on panel; just not heating. Why?

it may be a micro switch which is activated by door,or the filament of the magnetron.

The problem is in the magnetron/inverter board if less than 7 years.

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

Microwave Oven Basic Troubleshooting Tips

heatman101
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Hi,
Here is a tip that will help you to figure out what is wrong with yourMicrowave Oven....

Microwave Oven Basic Troubleshooting Tips

heatman101
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this is something you should probably call a repair technician for, due to the danger of the componentry.

Usually in ther case of this problem, even a technician will advise you to replace the unit, in the minds of cost effectiveness and safety...

Sounds like you've had a failure in the microwave portion of the unit.

Microwave not heating problems when the timer/controller board appears to function properly, are related to the following components -

1) Diode
2) Capacitor
3) Transformer
4) Magnetron

I think its the mag tube, mine went out the same way. GE will provide the mag tube for free just call them...have a local ge certified tech out to put it in.

model # JVM1870BF001 GE Profile spacemaker XL 1800 microwave

after episode of using defrost which burned food--now stopped heating--still has power/fan--don't know how to change fuse--please help

PROBLEM MAY BE A RELAY ON THE CONTROL BOARD OR MAY BE A LOOSE WIRE FROM THE HV TRANSFORMER CKT.