Kenmore Microwave Not Heating Food

When i push start it sounds like it working but the turntable doesn t move and it doesn t heat.

Kenmore microwave not heating food.

How to test microwave magnetron with a multimeter. The diode converts the a c power output of the transformer to d c doubling the voltage to nearly 5 000 volts. This high voltage powers the magnetron to heat the 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.

My kenmore microwave is not heating. Any idea what went wrong. I have a kenmore microwave 709 80333310 that i bought new and have used about two months. 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.

When the voltage drops below 215 volts the microwave does not heat the food well enough. The diode converts the a c power output of the transformer to d c doubling the voltage to nearly 5 000 volts. If the diode burns out the magnetron won t receive enough voltage to operate preventing the microwave. When the diode fails it is often visibly burned out.

If the voltage is normal then it s time to replace the magnetron with a new one. This is the part that makes the heat to cook the food. Lights timer display all work. Kenmore microwave model 721 80012401 it wont heat up food kenmore microwave model 721 80012401 it won t heat up food at all.

The light fan rotating table are working. A microwave that does not heat up may have a broken magnetron. If it is broken it may blow a fuse in your microwave which could lead to other components failing. This high voltage powers the magnetron to heat the food.

Quick troubleshoot and what you may need to fix video. Get shopping advice from experts friends and the community. Once the voltage is normal the microwave oven will start to work fine. Easiest fix you can find.