Runs but doesn't heat
What you see
The light and turntable work and you hear it running, but the food stays cold.
Likely causes
In microwaves generally: the magnetron, the high-voltage diode or capacitor, a door switch, or the control board.
Safe to try
Check the power level and that it isn't on a defrost program, then test with a cup of water for one minute.
Technician
After discharging the capacitor, the technician tests the high-voltage circuit and the magnetron.


