Kenmore Microwave Not Heating Food

When the diode fails it is often visibly burned out.

Kenmore microwave not heating food.

A new and better video update for the previous one where i explain how to fix your microwave that works but doesn t heat. This high voltage powers the magnetron to heat the food. When i push start it sounds like it working but the turntable doesn t move and it doesn t heat. What we have heard in the past is when the microwave starts door closed and timer started it then turns on with a noise clunk and then the food is heated but now that noise no longer happens and the food is still cold.

Any idea what went wrong. If it is broken it may blow a fuse in your microwave which could lead to other components failing. Quick troubleshoot and what you may need to fix video. Lights timer display all work.

The light fan rotating table are working. If the diode burns out the magnetron won t receive enough voltage to operate preventing the microwave. The diode converts the a c power output of the transformer to d c doubling the voltage to nearly 5 000 volts. If the voltage is normal then it s time to replace the magnetron with a new one.

The diode converts the a c power output of the transformer to d c doubling the voltage to nearly 5 000 volts. My kenmore microwave is not heating. How to test microwave magnetron with a multimeter. Always put safety first when dealing with electricity.

If the diode burns out the magnetron won t receive enough voltage to operate preventing the microwave from heating. Kenmore microwave model 721 80012401 it wont heat up food kenmore microwave model 721 80012401 it won t heat up food at all. Easiest fix you can find. Once the voltage is normal the microwave oven will start to work fine.

A microwave that does not heat up may have a broken magnetron. When the voltage drops below 215 volts the microwave does not heat the food well enough. This high voltage powers the magnetron to heat the food. Our microwave model 721 8965581 is not heating any food.