BRK electronic CO5120B - Manual (Page 25)

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CHAPTER 7: Troubleshooting Guide
DANGER!
ELECTRICAL SHOCK HAZARD. Turn off the power to the area where the CO alarm is installed BEFORE
removing it from the mounting bracket or checking any electrical connections! Failure to turn off the
power first may result in serious electrical shock, injury or death.
The following guide can help you identify a potential problem with the installation or operation of your
CO alarm. It is not meant to be an all-inclusive list of all CO alarm conditions. If you are experiencing
a condition not covered in the next several pages, please contact Consumer Affairs.
If your CO alarm does this... It means... You should...
Red light is OFF.
Unit will not alarm when you
press the Test/Silence button. Unit may not be
receiving any power. Check the AC power supply. Make sure the power
connector is securely attached to the alarm.
Make sure a fresh 9V battery is installed to
power the battery back-up.
Red light flashes once a minute
(horn is silent). Alarm is not receiving
AC power. Unit is operating on DC battery back-up.
Check the AC power supply.
Once a minute, the red light
flashes and the horn “chirps”. Low battery warning. Replace the battery in the battery back-up.
Once a minute, the alarm
sounds 3 quick “chirps”, and
the red light flashes quickly
three times. Unit malfunction. Unit
needs to be replaced. Units under warranty should be returned to
manufacturer for replacement. See Chapter 8
“Limited Warranty” for details.
CO alarm goes back into alarm
4 minutes after you press the
Test/Silence button. CO levels are
still potentially
dangerous. Refer to Chapter 3 “If Your CO Alarm Sounds” for
details on how to respond to an alarm. If anyone is
feeling ill, EVACUATE your home immediately and
call 911.
CO alarm sounds frequently
even though no high levels of
CO are revealed in an
investigation. The CO alarm may be
improperly located.
Refer to “Where to
Install Your CO Alarm.” Relocate your alarm. If frequent alarms continue,
have home rechecked for potential CO problems.
You may be experiencing an intermittent CO
problem.
If you have questions you cannot answer by reading the manual, call Consumer Affairs at 1-800-323-9005.