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Nighthawk Carbon Monoxide Detector KN-COEG-3

err , (error 3?), can not reset
Posted by eco430 on Jul 6th, 2008 at 11:01am

when I try to reset it displays Err, (possibly eror 3?), and does not stop beeping, please help how to reset and stop beeping.
thanks
Bipin
eco430@gmail.com

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