Removed cover, diagnosed problem, ordered part from Parts Select, received part in 2 days, replaced part, tested and replaced oven into built in space.
When trying to run, intermittently, the light would come on but the tray wouldn't rotate or cook. When the door was open, the tray would intermittently rotate.
I pulled out the unit and found 2 interlock switches that are depressed when the door closes. After cycling the door open/closed I found that one of the switches occasionally would stay depressed. The repair was easy (after I took off the panels so I could get to the switch) I simply removed 2 screws that attached the interlock switch assemblies to the main unit. Then I popped out the defective switch and popped in the new one. This did indeed fix my problem.
The part had to be rotated to fit then screw was replaced. Only tricky thing was that the screw was the security allen type with a small post in the center. Luckily I had a set of them from installing similar bolts on license plates.
Removed outer cover and then replaced the T. C. O. located on the left upper side if the unit. Replaced outer cover, tested oven. Oven operates normally.
Microwave would turn on ,BUT turn table would not turn and oven would not heat.
Took off cover , unpluged switches , took off switch assy, off/on test hooped and howlered for about 5 mins .Then laughed about other sites said could get those switches. Just wanted to say I LOVE Partselect. Super fast del , great price. JUST AWSOME!!!!!!!!!!!!!!!!!!!!!!!!!!!!