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Microwave-working-but-not-heating-up-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.. Your microwave may turn on but not heat up. this could be caused by a problem with the high voltage diode, which helps to power the magnetron. the high voltage diode is located in the cabinet. unplug the microwave and discharge the high voltage capacitor after removing the cabinet., [br] i have a kenmore microwave 790.83337710. lights, timer, display all work. when i push start it sounds like it working but the turntable doesn't move and it doesn't heat..

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., 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..

Place a microwaveable safe cup, mug, or bowl of water inside the unit. press clear/off or reset to clear the keypad.. press cook and enter 60 seconds.. check the water to see if it was heated., start right here find appliance parts, lawn & garden equipment parts, heating & cooling parts and more from the top brands in the industry here. click on shop parts, or select the kind of product you're working with on the left and we'll help you find the right part. shop parts. Cause 1 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. if the diode burns out, the magnetron won’t receive enough voltage to operate, preventing the microwave from... - kenmore microwave


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