The lights (Cooktop/Night and Oven) doesn’t turn on, the turn-table doesn’t spin, and the fan is not coming on. The LCD display comes on and I am able to set the time and set cooking times but when it starts a different hum comes on and it does heat the drinks and the top vent usually Swings open but doesn’t.
I replaced the 3 halogen bulbs( 2 Cooktop/Night bulbs was burned out but the Oven wasn’t but replaced it anyways) and still doesn’t turn on. I checked the 2 fuses and the 3 switches(Door Sense, Monitor, and Primary) using an ohmmeter and works fine.
What should I do next or what part do I need to replace or repair
There are two control boards and it’s hard to say without a wiring diagram which one controls the surface lights and the turntable motor. If you can post the diagram, it might help.
I included the 2 diagrams but from you are saying the 2 parts are as follows:
Diagram Location: 21 Part Number: AP3883401
Diagram Location:130 Part Number: AP3883118
I am hoping and it seems to be that the problem is with the PCB Sub Asm Part Number: AP3883401
Let me know if that is correct, if so I am examining that part right now and doesn’t look fried. Does if just go bad?
I could not find a pictures for these two boards and unfortunately the diagrams are not very helpful either. There should be a low voltage transformer and a few relays on the board which is responsible for the surface lights, turntable motor and fan.
[quote] …when it starts a different hum comes on…[/quote]That could be a different problem with a part in the high voltage part of the microwave. I believe the control board should be replaced first.
Ok I just ordered Diagram Location: 21 Part Number: AP3883401 also known as GE Part Number: WB27X10901 PCB SUB ASM. After some research the other part is GE Part Number: WB27X10900 which is the Smartboard. Will report back once I get the part and test it out. Thanks for your help, I hope that will fix it.
