Defy-microwave-not-heating-up, 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.. 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., 3. problem with the magnetron. if your microwave is not heating, then the problem could also be with the magnetron. magnetron is an important part of the microwave and is responsible for providing the heat which cooks the food..
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. if the diode burns out, the magnetron won’t receive enough voltage to operate, preventing the microwave from heating. when the diode fails, it is often visibly burned out., if any of the door switches fails, the microwave will not start or heat. to determine if any of the door switches are defective, use a multimeter to test each of the switches for continuity. if any of the door switches does not have continuity, replace it..
My first thought would be a blown magnetron. on microwaves, these can generally go dead, usually with a popping sound. 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. the technician should also not forget the door switch since some of them can cause the same issue., microwave oven door slammed now not working if you have slammed the microwave door and the microwave does not turn on, most likely the fuse has blown. check the fuse and remove and replace if required. you can test your microwave fuse with a multimeter by checking for continuity..
Did the keypad respond and the microwave start? yes no; did the water heat after the test? yes no; if the keypad does not respond, it is possible that the child lock feature is active.. child lock is a safety feature used to lock the control panel when cleaning the microwave, so that children cannot use the microwave unsupervised.