Kenmore Microwave Not Heating Up Food

A microwave that does not heat up may have a broken magnetron.

Kenmore microwave not heating up food.

If the diode burns out the magnetron won t receive enough voltage to operate preventing the microwave from heating. Br i have a kenmore microwave 790 83337710. 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. This is the part that makes the heat to cook the food. My kenmore microwave is not heating. The easiest way to determine whether your microwave is failing is to try to heat a food item.

This high voltage powers the magnetron to heat the food. The diode converts the a c power output of the transformer to d c doubling the voltage to nearly 5 000 volts. If the microwave doesn t heat or it heats more slowly than it should this indicates that it is. If the voltage is normal then it s time to replace the magnetron with a new one.

How to test microwave magnetron with a multimeter. If it is broken it may blow a fuse in your microwave which could lead to other components failing. When i push start it sounds like it working but the turntable doesn t move and it doesn t heat. Easiest fix you can find.

When the voltage drops below 215 volts the microwave does not heat the food well enough. A new and better video update for the previous one where i explain how to fix your microwave that works but doesn t heat.