I’ve had the same thing happen. See the Interior and ventilation diagram on https://www.searspartsdirect.com/model/2p0rgm2uxf-000582/kenmore-66569689992-microwave-hood-combo-parts site. The switches #10 ride on a cam #12 and are not lubricated and eventually wear to the point they don't close the switch properly. Slamming sometimes can finish the closure action, but is a short lived solution.
-
I fixed it before by adjusting the switch position and lubricating the cam surface. There are 3 switches between the upper and lower latches that can do this. The fix has lasted 5 years on the one switch I did. I should have done all 3. Back at it again.
+
I fixed it before by adjusting the switch position and lubricating the cam surface. There are 3 switches between the upper and lower latches that can do this. The fix has lasted over 5 years on the switches I did. Back at it again though.
+
+
Update: I just finished troubleshooting the problem. This time it is a relay that has arc’d closed. Banging them may open them up, but is short lived solution too. There is not an arc suppression cap across the contacts in the design. The relay is in position 4903 and is part number OMIF-S-124LM for those electronically capable. The part is obsolete as of this date, so eBay is your best bet.
I’ve had the same thing happen. See the Interior and ventilation diagram on https://www.searspartsdirect.com/model/2p0rgm2uxf-000582/kenmore-66569689992-microwave-hood-combo-parts site. The switches #10 ride on a cam #12 and are not lubricated and eventually wear to the point they don't close the switch properly. Slamming sometimes can finish the closure action, but is a short lived solution.
I fixed it before by adjusting the switch position and lubricating the cam surface. There are 3 switches between the upper and lower latches that can do this. The fix has lasted 5 years on the one switch I did. I should have done all 3. Back at it again.