My Microwave Is Not Heating The Food

This high voltage powers the magnetron to heat the food.

My microwave is not heating the food. If your microwave oven doesn t heat you may have a problem with a door switch. When in operation the magnetron utilizes high voltage electrical power to generate the microwave frequencies that heats up the food. How to test microwave magnetron with a multimeter. If either the magnetron or the switch is broken you need to contact a licensed technician to make the replacement.

I think there might also be a fuse in your microwave but i do believe that if it was a blown fuse your mw would not start up. If it is broken it may blow a fuse in your microwave which could lead to other components failing. My first thought would be a blown magnetron. If you notice that your microwave runs but doesn t heat there could be a problem with its high voltage diode the component that powers the magnetron so it can heat up the food.

The problem arises when this diode which doubles up the voltage to as much as 5 000 volts to facilitate microwave heating burns out. On microwaves these can generally go dead usually with a popping sound. A microwave that does not heat up may have a broken magnetron. Fix repair the magnetron is responsible for heating the food you put into the microwave.

The door switches often referred to as interlock switches provide power to the various components in the microwave when the door is in a closed position and interrupt power when the door is open. The diode converts the a c power output of the transformer to d c doubling the voltage to nearly 5 000 volts. New well explained video here https youtu be sgj0hvi6aj4 if your microwave works has power and timer runs but there is no heating the most common problem.