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Question About Nighthawk Carbon Monoxide Alarm KN-COPP-3
I AM GETTING A DISPLAY OF "ERR". WHEN I HIT THE B...

I AM GETTING A DISPLAY OF "ERR". WHEN I HIT THE BUTTON IT SAYS "E09". IS THE UNIT NO GOOD ANY LONGER? THANK YOU

Asked by BOB on 11/21/2012 1  Answer

ManualsOnline posted an answer 11 years, 5 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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