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Question About Nighthawk Carbon Monoxide Alarm KN-COP-DP
Unit Error...

A single inttermittent audible alarm sounds every 25 -30 second The display reads err When you hit test / reset button 888 appears What does this mean

Asked by gino on 01/29/2009 1  Answer

ManualsOnline posted an answer 15 years, 8 months ago

The ManualsOnline team has found the manual for this product! We hope it helps solve your problem. Get the Manual Here

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