Michael for Model Number PT970DR2BB Hello, my microwave Ge profile combo, Hums after shut down with door closed .,Open the door it stop, Turn power on and off, it fixes it for a short time. Looks like a relay on the top board hangs up , I unplug the relay and plug it back in it works fine .... Iam looking at main control board Part number AP5632461 Thanks MPS......
Answer Hello Michael. You will need to test the door switches on the unit and see if they are bad and will need to be replaced. You can test this with a multi-meter TJMA-DMT3. Here is a link on how to use a multi-meter. http://forum.appliancepartspros.com/oven-repair-including-ranges-cooktops/4810-how-check-continuity-ohmmeter.html Read More... Answered by AppliancePartsPros.com | Monday, September 26, 2016