Thread: Microwave/Range Hood doesn't function

Start by checking the door interlock switches for continuity. You'll need a VOM that can read volts and ohms. You might have a bad control panel in which case you might have to start pricing new microwaves. Many parts for this model, including the control board, have been permanently discontinued by the manufacturer.

Do those switches check to make sure the door is closed? If so, I don't think they are the problem. The microwave does attempt to cook. I enter a time and hit start and the timer does count down.

Not really. There are two or three interlock switches. They're designed as built in safety devices and not just to make sure the door is closed.

Ok. You don't happen to have an exploded diagram so I can see where these switches are, do you? So I am just checking for continuity on these, correct?

There are three interlock microswitches. Each switch terminal is marked: COM=Common NO=Normally Open NC=Normally Closed. Unplug the microwave and remove the wires from the switch before testing. Test the switch by opening and closing the door. To access the interlock switches you'll need to remove the grill. Remove the screw on the top of the control panel and it should come off. The switch assembly is accessible on the left where the door closes. If you have any problems or questions just ask.

FIXED!

I opened everything up to give those switches a test. I found that one of the connections to one switch was broken. There were two wires connected to the spade and they burned themselves off. I'm not sure why this happen, but I suspect poor workmanship in the connection. I was able to reconnect the wires and the microwave i snow functioning.

Cool! Easy fix!