This is technical!!! Don't know how handy you are but the biggest reason for microwave failure is a diode (HV) between ground and the lead to the magnatron. usually mounted low down low on the right inside of the unit. Also, there are about three microswitches in the door closing latches to make sure the door is properly closed. Sometimes they come loose or fracture the mount. then of course there is the Magnatron its self. I save them from old units. They are different wattages but physically the same and simple to change. Good luck.
If you need further help, reach me via phone at https://www.6ya.com/expert/gary_9c859f4aa7e5ab10
on Feb 21, 2018
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