A metallic bread tie was accidentally left in the unit on top of the glass tray. The wire arced/sparked for 5-10 seconds before it was noticed and removed. The microwave worked once or twice afterword but now will only make a slightly louder humming noise than normal but no heating. Haven't removed case yet, but was wondering where to start, 1) Diode 2)Capacitor 3)HV transformer or 4)Magnetron. It seems that if all 4 components are bad it may be more cost effecive to just buy a new microwave.
ANSWER Hello Jim,
You will more than likely need a new stirrer WB6X496 and you will want to check the magnetron magnet WB27X10017 for cracks.
Answered by AppliancePartsPros.com | Tuesday, February 26, 2013