Hai my daevoo microwave only display & light working. not heating wat happent

first suspect is the inverter board (power) and magnatron a distant second----in either case the part involved unless an expensive unit is pricey.

The door switches are often a problem, one or two are probably defective which would cause the symptoms that you are describing.

I would strongly consider replacing the microwave oven, prices have dropped considerably. The problem you are describing is in the keypad controller board.

It sounds like the magnetron may have either failed or is not being supplied with the extremely high voltage required to run it.

YOUR SAFETY IS PARAMOUNT

This is a job for a professional but if you are safety clued up, here's instruction.
Make sure the !!!!any capacitors are discharged!!!!! before attempting any sort of repair.
Check the door interlock switches first then the high voltage diode with either an AVO model 8 or moving coil meter on high resistance range for short circuit, (DVM's won't show the fault!), the capacitor can fail and go short circuit, the feed fuse on the primary of the high voltage transformer and then finally, the magnetron is best checked by substitution.
Hope that helps.

You have a failed membrane keypad.

On this model, GE doesn't make any parts available except the tray and the roller.

If it's in warranty, they will exchange or repair it.

It it's out of warranty, you're out of luck.

I'd advise you to contact GE Customer Service in case they may be able to help you.

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

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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• Disconnect the power for 30 seconds. After restoring power, do not set the clock.
• If your model has an ON/OFF clock display, you can choose not to have the time displayed. To choose this option, press the 0 pad for about three seconds. To Turn the display back on, press the 0 again.

Touch the clock pad. Enter in the correct time of day by touching the numbers in sequence. Touch the clock pad again.

don't know about the red light, but (fancy this) I had the same problem with my microwave tonight. Everything but heat worked. Unplug it, plug it back in. Worked for my GE Spacemaker.