UNDERSTANDING YOUR CO ALARM
BASIC POWER CONDITIONS
Alarm operating
on AC power
Alarm operating
on emergency
battery back-up
Low / missing
battery warning
“Err” Alarm is
not operating
properly
What you see and hear during installation
WHEN YOU FIRST INSTALL THE
BATTERY:
HORN:
Chirps briefly
DISPLAY: Flashes “888” briefly;
switches to “bat” after a minute
POWER/ALARM Light: Flashes
once a minute
WHEN YOU FIRST PLUG-IN
THE CO ALARM:
HORN:
Silent
DISPLAY: Dash appears by
“READY”
POWER/ALARM LIGHT:
Shines continuously
UNDER NORMAL CONDITIONS
(AC POWER):
HORN:
Silent
DISPLAY: Dash remains lit at
“READY”
POWER/ALARM LIGHT: Shines
continuously
WHEN YOU TEST THE CO ALARM:
HORN:
Sounds loudly - 4 beeps,
pause, 4 beeps, pause
DISPLAY: Flashes “888” briefly
POWER/ALARM LIGHT:
Flashes rapidly
What you see and hear under different conditions:
DURING A POWER FAILURE
(IN BATTERY BACK-UP):
HORN:
Silent
DISPLAY: Displays the word
“bat” continuously
POWER/ALARM LIGHT: Flashes
once a minute.
WHEN THE ELECTRICITY COMES
BACK ON:
HORN:
Silent
DISPLAY: Dash appears by
“READY”
POWER/ALARM LIGHT: Shines
continuously.
IF BATTERY BECOMES LOW
OR IS MISSING:
HORN:
Chirps once a minute*
DISPLAY: The word “bat” flashes
on and off
POWER/ALARM LIGHT: Flashes
once a minute
IF THE CO ALARM IS NOT
OPERATING PROPERLY:
HORN:
Three rapid chirps
every minute
DISPLAY: Displays “Err”
POWER/ALARM LIGHT: Flashes
three times in sync with the horn.
What you see and hear if CO is detected:
PRE-ALARM LEVELS:
HORN:
Silent
DISPLAY: Shows CO levels
detected in ppm
POWER/ALARM LIGHT:
On continuously
ALARM LEVELS OF CO ARE
DETECTED:
HORN:
Sounds loudly - 4 beeps,
pause, 4 beeps, pause.
This sequence repeats for as
long as the unit is in alarm*
DISPLAY: Shows CO levels
detected in ppm
POWER/ALARM LIGHT:
Flashes rapidly
*Note: If unit goes into alarm
under battery back-up power,
the regular 4 beeps-brief pause
cycle will repeat for four minutes.
After four minutes, the pause will
increase to 1 minute.
IF YOU SILENCE THE ALARM:
HORN:
Silent for about
4 minutes*
DISPLAY: Shows CO levels
detected in ppm
POWER/ALARM LIGHT:
Flashes rapidly
*Note: After 4 minutes, if CO levels drop below alarm levels, the
unit will remain silent and return
to normal operation. If CO presence still indicates a potentially
dangerous situation, the horn will
sound again.
IF THE CO LEVELS RETURN
TO NORMAL:
HORN:
Silent
DISPLAY: Dash lit by “READY”
POWER/ALARM LIGHT:
Shines continuously
USING THE REMOTE CONTROL TEST/SILENCE FEATURE
Using the VOLUME or CHANNEL buttons on most remote controls, you can
test or silence this CO Alarm from up to 12 feet (3.6 meters) away.
To Test or Silence the Alarm:
1. Make sure you have a clear path between you
and the Alarm, free of any obstructions.
2. Point the remote at the front of the Alarm.
3. Press the VOLUME or CHANNEL button for at
least 2 seconds.
If the Alarm does not respond to your
remote control:
• You may be standing too far away.
• Your remote may not be compatible.
• The feature may be accidentally disabled*.
• You did not hold the button on your remote for at least 2 seconds.
• The remote Silence Feature only works once in an alarm situation. Using
the Test/Silence button on the CO Alarm will still silence the unit. The
remote Silence Feature will return when the unit clears itself.
*NOTE: The remote control option will be disabled if you hold down the
Test/Silence/Scroll button while installing the battery. If you accidentally disable
the remote option, remove the battery and re-install it, making sure you are not
touching the Test/Silence/Scroll button.
USING THE PEAK CO MEMORY
The CO Memory Feature lets you check the highest level of CO recorded
during an alarm.
To check CO Memory:
1. Press and release the Test/Silence/Scroll button until the dash scrolls
to “MEMORY”.
2. Press and hold Test/Silence/Scroll button to display Memory CO level.
To clear CO Memory:
1. Press and release the Test/Silence/Scroll button until the dash scrolls to
“CLEAR MEMORY.”
2. Press and hold the Test/Silence/Scroll button until the display shows “CLr.”
NOTE: The highest CO level will be saved, even after a power interruption,
until you clear it. DO NOT clear the CO Memory reading if you plan to call
someone to investigate a CO problem! Clear the CO Memory reading only
after the investigator has checked your home.