Microwave turned on, made loud humming/stuttering noise, then shut off
The microwave was dead, no power, no display. I replaced the fuse, and that managed to get the oven to turn on and operate the control panel. I tested heating half a cup of water, and the microwave turned on for 3s, made a loud humming, almost stuttering noise, then completely shut off again.
I assume the fuse is blown again, since it's completely dead again. But am I also on the right path that either the diode or the magnetron need replacing? Or could there be another component that is capable of blowing the fuse with the same symptoms?
Ist dies eine gute Frage?
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Hi @mpkarlo,
What is the model number of the microwave oven?
Could also be the HV transformer, the turntable motor or fan motor or even the door interlock switches not operating/releasing correctly as they're all connected to the mains power supply after the oven is started.
von jayeff
Hi @jayeff,
The model number is 721.85032010.
von Karlo Melendez-Pena