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Question About Nighthawk Carbon Monoxide Alarm KN-COP-DP
the co alarm......

...sounds off with a short beep about every 3 to 4 min.. when trying to reset the display will show " 888 ", then pushing the test/reset botton again the unit will diplay " err. " ?

Asked by on 02/05/2010 1  Answer

ManualsOnline posted an answer 14 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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