1. Manuals
  2. Consumer Electronics Support
  3. First Alert Support
  4. Carbon Monoxide Alarm Support
Support User Manuals
Question About First Alert Carbon Monoxide Alarm CO605
Whwn I push the test button on my CO400 I get one ...

Whwn I push the test button on my CO400 I get one beep followed by a pause and then four beeps repeated twice, both indoors and outside. What does that mean?

Asked by Fred Horton on 01/12/2013 1  Answer

ManualsOnline posted an answer 11 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

Add Your Answer

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