Harish V for Model Number PT970SM4SS The microwave started humming loudly all of sudden, then the power when I pressed clear, the control went dead and the microwave was hot inside. After a while the power to control came back and it started humming again. It humms when door is closed, when door is open, light is on and no humming. Any idea what may be the issue? Does not look like keypad.
Answer Harish, With the unit having this issue with the door closed then you will want to check the door switches to make sure that they are good. If they check ok then the issue will be in the control board. Read More... Answered by AppliancePartsPros.com | Wednesday, November 26, 2014