My microwave stays on with the humming noise and heats every time I close the door and will not stop heating. The only way to get it to stop is to leave the microwave door open. What part(s) do I need to purchase to repair this issue. Thanks, AJ.
ANSWER Hello AJ. It sounds like the door switches 4392027 are bad and will need to be replaced in the unit. Test the switches to see which one is bad. You can test this with a multi-meter TJMA-DMT3. Here is a link on how to use a multi-meter. Hope this helps. http://forum.appliancepartspros.com/oven-repair-including-ranges-cooktops/4810-how-check-continuity-ohmmeter.html
Answered by AppliancePartsPros.com | Wednesday, February 29, 2012