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The unit would run when the door was open!
First I had to accept the fact that the unit was designed to keep non-professional people from doing any repairs. The switch was installed in such a manner that I had to break the mounting to remove the switch, then drill a hole in the mounting to secure the new switch in place.
Remove the top of the microwave, regular phillips screws on sides, torque screws on back. Lift up back and slide off cover. Light bulb socket is easily detached and bulb unplugged and replaced. Slide cover from back lifted slightly so lip will slide into front of microwave, than replace screws. Be sure to unplug microwave before you start.
AFter I put the roller guide and glass cooking tray inside the microwave it still didn't spin. After check with the video, I was warned not to try to replace the motor which spins the tray, that there was a chance of electrical shock. I took the oven to my repair place and they made the repairs.
First I took out the screws holding the sides and back to the microwave. I discovered that the rotissereie motor was also damaged, but had an old GE microwave that had quit working-took out motor from other GE(motor was the same), installed motor in microwave, lined up pin to roller assy. and that was it!
The oven overheated when timed cooked was pushed with an empty oven instead of the timer. The oven outside was very warm. I thought the oven was toast and we searched for a comparable one but found they all were rated average to lower than average. So I took the oven cover off aafter buying a special screwdriver bit at ACE Hardware for the security screws. I saw no burned or melted parts. Under the cover was a schematic in an envelope. I traced the hot wire through the fuse and checked the fuse. It was good. Then I traced the neutral wire to a "Flame Sensor" and I wondered what that was. I discovered online that this is an oven over-temperature sensor. I tested the part and it measured infinite ohms. Eureka! I ordered the part and broken light bulb which came promptly. Both parts just require push-on wire connectors and small metal tabs which are bent 90° to hold the parts in place. Very quick and easy repair.
Microwave would only heat food items to a warm condition
Removed microwave cover using screwdriver and anti tamper bit available at local hardware store. Megnetron had broken magnet making discovery of deffective part easy. Removed wire connector and three screws attaching magnetron to case, removed magnetron and installed new item in reverse order. Installed cover and made popcorn for operational check of microwave. Happy days..........
The problem I had with the Microwave Oven was noise when Plate was rotating
After contacting GE support I realized the only interest they had in helping me was to recommend sending a $$$ technican to diagnose the problem. I decided to go to the Sears Parts select website.to see if others were experiencing the noise me microwave was making. After reading through others posting on the subject I decided to purchase the Synchronous Motor. While waiting for the part to come I decided to lubricate the hub of the spides that rotates the plate with white Lithium grease. After a couple of times utilizing the microwave noise went away so whn the part arrived at me home I put it in a drawer just incase I need it a some future date. Hope that someone else finds this information useful. "The Crafty Dodger in Houston"
PartSelect had helpful repair instructions on-line which made the repair easier and faster. Unfortunately, there were other problems with the oven that immediately blew the new fuse I had just installed. It was then determined that additional repair would most likely cost almost as much as a new microwave.
First unplugged the microwave, took top grill off, took control panel off, took wires off and used color coded tape to make sure they went back in right places, took fuse out and replaced it and put every thing back and it all worked fine and to top it off my wife did it all. So it was pretty easy.