Question about Bunn-O-Matic Coffee Brewer GRW8

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Cooffe brews on its own

I have a bunn A10 model that has a water line attached, I brew 1/2 pot of coffee which it brews fine, five minutes later it cycles itself and brews another half pot. Do I have ghosts that enjoy coffee or what.

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Hello. Here is what could be happening. Your brew timer may be having a problem where it is re actuating on it's own, in which case it would need to be replaced, and re calibrated. The other possibility is that the start switch is making contact internally, and telling the brew timer to start again. Your unit does not show it having a level probe, so most likely it is not overflowing due to a flooding condition. After you brew, turn off the lower heat switch, this will remove power to the brew circuit, if the problem stops, then you know it is one of those 2 things, and I would try the start switch first, as it is a cheaper item to replace than the timer.
Here is a link to your brewer manual with part #'s etc..

http://www.bunnomatic.com/pdfs/commercial/manuals/10613.0000.pdf

Hope this helped, and thank you.

Posted on Mar 15, 2009

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