Why-does-my-microwave-not-heat-food, 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.. Problem – everything appears to be working without issue but the food is not heating. cause – tripped fuse or faulty thermoprotector. fix & repair – the thermoprotector is a switch that is meant to control the amount of heat in a microwave. if the temperature within the unit exceeds a certain point the device cuts off power., microwave runs but does not heat. if the microwave runs but is not heating, it could be one of many components. make sure the “timer” function was not inadvertently used..
Signs of malfunction: the light is on, the turntable is spinning, the grill is working but the microwave does not heat the food., joshua, for the longest time the consensus on ifixit is to replace the whole unit. microwave ovens generate high voltages and dangerous amounts of radio-frequency radiation. attempting to repair one is not for the amateur. i advise recycling it and getting a new one. on the flipside of this, you... - kenmore microwave.
Among others, one of the most common problems is that microwave turns on but does not heat. before you finally jump to a conclusion that you need a new microwave, keep on reading and learn about some of the possible issues., a microwave that does not heat up may have a broken magnetron. this is the part that makes the heat to cook the food. if it is broken, it may blow a fuse in your microwave which could lead to other components failing. how to test microwave magnetron with a multimeter: