7. Maintenance
NOTE:
This unit is sealed. The cover is not removable.
Due to the loudness of the alarm, we suggest that you
place your fingers over the sounder opening while testing
your alarm.
!
CAUTION: Continuous exposure to the high sound level
of this alarm over an extended period of time may cause
hearing loss.
Testing
To test the CO alarm, press and release the Test/Reset button, you will
hear 4 quick beeps – followed by 5 seconds of silence – followed by 4
quick beeps. Notice the red Alarm LED flashes when the unit alarms. The
alarm will then return to monitoring for carbon monoxide.
Battery Replacement
WARNING:
If at any time you test the alarm and it does not
perform as described, have it replaced immediately.
NOTE: This CO alarm is not battery-operated.
However, this
alarm is equipped with 2 AA batteries backup – the 2 AA batteries are
to supply short term back-up during a power outage.
If installed, slide the battery door in the direction of the arrows to
release it. Remove the batteries and replace with two of the following
approved replacement Alkaline batteries:
• Energizer E91
• Duracell MN1500, MX1500
Error/
service
alarm
Red LED flashes every
30 seconds
One quick beep
every 30 seconds
Unit is in error condition
Error
Red LED
constantly on
Constant alarm
Very low batteries or
unit malfunction
Replace batteries.
If “Err” continues, unit
has malfunctioned.
Replace immediately. Unit
will not respond to CO
Normal
Test/Reset
function
Red LED flashes with
beeps
4 quick beeps,
5 seconds silence,
repeated once
Normal operation
when Test/Reset button
is pressed
CO not detected. Alarm
for test purposes only
Operating and Alarm Characteristics
Function
LED Display
Alarm Sound Unit Status
Recommendation
Event
Memory
Green LED
flashes every
10 seconds
None
100 ppm or more
CO previously
detected
Push button to clear
and test unit.
Tamper
Resist
Red LED
constantly on
Constant
alarm (after
2 minutes)
Tamper Resist
feature
activated
Plug unit into AC outlet.
Disable feature if desired.
(See Section 2)
End of
Unit Life
Indicator
Red LED flashes two
times every
30 seconds
Two quick
beeps every
30 seconds
End of unit life
Replace unit immediately.
Unit will not
respond to CO.
