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Question About Nighthawk Carbon Monoxide Alarm None
Err...

Installed new batteries but a display of "Err" will not go away not to mention the continuous beeping. Thank you.

Asked by Rosalio on 12/01/2008 1  Answer

ManualsOnline posted an answer 15 years, 10 months ago

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

rebecca posted an answer 15 years, 9 months ago

0 I have this detector, and as stated in the manual. In the rare event that your alarm malfunctions, it will alert you with a short "chirp" and the red LED will flash once every 30 seconds. The digital model will display "Err". If the unit chirps once every 30 seconds, observe the unit for the following: A chirp every 30 seconds, with a green LED flash followed by a red LED flash, indicates the batteries are low. A chirp every 30 seconds, with a red flash and no green LED flash indicates a unit error. If the unit does not respond, call the consumer Hotline 1-800-880-6788. I have also found the manual online.
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Janet posted an answer 15 years, 7 months ago

0 I seem to remember that you need to take the abtteries out and leave them out for a time and then try again.  I hope it works.
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