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#1 Posted : Wednesday, November 30, 2011 5:29:03 PM(UTC)

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Joined: 8/3/2009(UTC)
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My friend has a KitchenAid in-wall convective microwave over, I believe the model # is KBMC109jSS0, though I could not find it anywhere.

The microwave normally works fine but sometimes it starts beeping for no apparent reason. He has to depower it via the circuit breaker. After a few hours, sometimes the next day, he can repower it and it works fine for a while before it starts beeping again.

We replaced the main control board with a new one (the exact part #), powered it up, set the time and checked all of the functions. It seemed to do the trick until about 4 hours latter when it started to beep again.

It doesn't look like there are many parts in there. Any ideas what else it could be?

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#2 Posted : Monday, December 5, 2011 4:54:10 AM(UTC)

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Joined: 7/24/2007(UTC)
Posts: 2,277


I could not find any info on that model number either, but off the top of my head I would guess the buttons that plug into the control panel are faulty.
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