Everything is working fine on the microwave, except that it is not heating the food.

My Samsung microwave is about 7 years old and everything works fine except it won't heat the food. What can we do to fix it?

Chances are the magnetron has failed, "heats food" the other possibility is the high voltage capacitor and diode. Repairs will approach the cost of a new microwave oven.

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

Microwave Oven Basic Troubleshooting Tips

heatman101

The problem is more than likely a bad magnetron, "heats food" the other two considerations are the high voltage capacitor and diode.

If the microwave oven appears to be working but it is not heating the food, it is very possible that the magnetron, or its power supply has failed.

Jerry G.

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 have the same problem. Everything seems to work except it doesn't heat up food.
I remember last time when it was working. I pressed the start botton before I closed the door. So it didn't start automatically, and I pushed start and it worked(it still heat up the food), but it doesn't work now. Help Please!!!
I have a Whirlpool Gold GH5184XPQ.

Thanks in advance

Probably magnetron failure- needs to go back to the dealers, this is a major job, may be cheaper to replace the oven