Microwave-running-but-not-heating, when your microwave turns on but does not heat up, it may mean the door switch is broken. the door switch signals other microwave components to supply power when closed, and to stop heating when open. the door switch can also be called an interlock switch.. 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..., disconnect the microwave from its power source. remove the microwave’s cabinet to locate the magnetron. clean up the microwave cavity if needed; discharge the high voltage capacitor to ensure that the high voltage diode is working and the mounting bolts are tightened..
If your microwave oven doesn’t heat, you may have a problem with the magnetron. this component is part of the high voltage circuit and provides the microwaves that generate the heat. if the magnetron is defective, the unit may blow a fuse, or you may still have all other functions operating normally., if the microwave runs but is not heating, it could be one of many components. make sure the “timer” function was not inadvertently used. check to ensure the door is closed firmly. close it firmly, but do not slam..
According to ge as well as experts in appliance repair, a repair technician should be called if a microwave is running but is not producing any heat. the problem is likely related to the microwave's circuitry, which is very intricate, and attempting to repair it without expert knowledge is dangerous., common solutions for: microwave not heating 01 - diode 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..
Strictly from an academic point, it could be the power diodes or a defective capacitor. your microwave may turn on but does not heat. remember the frying comment above, this is the part that will not just curl your hair, but will most certainly be a shocking experience. do not mess with it., the magnetron uses high voltage, high current dc power to generate the microwave frequency that cooks the food. if the magnetron burns out, the microwave won’t heat. the magnetron is not repairable—if the magnetron is burned out, you must replace it.