1. Manuals
  2. Consumer Electronics Support
  3. Nighthawk Support
  4. Carbon Monoxide Alarm Support
Support User Manuals
Question About Nighthawk Carbon Monoxide Alarm KN-COPP-3
Err on Nighthawk model KN-Copp-3...

I have a new battery in my Nighthawk Coop-3 and it goes to 888 then 0 but after 5 minutes it goes to err and beeps. Please advise the problem. thanks Jack

Asked by Jack Vest on 12/23/2008 1  Answer

ManualsOnline posted an answer 15 years, 9 months ago

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

Add Your Answer

Please Note: Do not submit personal information as it will be displayed online.
Ask a Question Request a Manual