So my folks have this over the range microwave. The light underneath quit working, so dad got a new bulb. When he took the old bulb out it came apart, with the metal sticking inside the fixture. So when he took the metal threaded part out of the socket, he didn't unplug it and blew the breaker. Now the new bulb is in but doesn't work... breaker is back on and microwave works fine, all lights work fine, but not the bulb underneath. When testing the wire leads, there is 120v there constantly, no matter what buttons you push but dad thinks it may have blown a diode or something as the light switch on the panel controls off/high/low. Any ideas? [url]https://www.reliableparts.com/lookup/255321/1682497#diagram[/url]

So, at some point last week my son stuck a knife (or something) into the latch...receivers (?) on the microwave case (this is where the door switches connect and trigger the latch switches, inside the microwave - Parts #81 and 82 in the link below). This immediately tripped the circuit breaker (note: The microwave is the only device on the circuit and the outlet is NOT GFCI). Since I was unable to release them from the outside, I had to take the unit apart somewhat to flip them back manually, and to gain access I had to take the control panel off, which meant disconnecting all the wiring. Most of the connections could only go back where they started- Only the two connecters coming from the latch switches were interchangeable, and unfortunately I made the mistake of not taking a photo so as to remember which was which and in what direction they connected. Now, anytime I plug in the unit and try to flip the breaker back on, it immediately trips it again. Since I wasn't sure how the connecters should be, [i]I tried all eight (8) different configurations, [/i]and all of them trip the breaker still. What am I missing here? Do I need to discharge the capacitors for the microwave generator? Could the switches or relays have been damaged or burnt out by one of them being "triggered" without the other? Any advice would be appreciated... I'd rather not pay a repairman $200 if I can fix it myself. The switches and relays are only ~$10 each [url=https://www.reliableparts.com/lookup/299733/2275249#diagram]Frigidaire FFMV1846VSA Parts | Reliable Parts[/url]