With the door open, the turntable runs. No heating. No magnetron. It also pauses now and then. I’m certain the control board is bad. The model is the one you mentioned above. I have priced a board. I will change it out. I have found I can buy either the control board itself or the entire assy.Question: is there any stored electrical charge? Capacitor, ect ect? Do I ground the board during change out?
- David Sutton asked 6 years ago
- last edited 6 years ago
You are correct then, you just have a bad control board. A bad door switch can cause a similar problem but the turntable would stop when the door was opened if that was the issue. Either way, the part number for the board is WB27X10791. You don’t need to ground anything out when replacing the board. Just make sure not to touch any of the high voltage components or wires in the back of the microwave in the back right corner because there is a capacitor on the high voltage side that can hold up to 3000 volts (even though it’s supposed to lose charge when working normally).
- AV Repair Help answered 6 years ago
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