Use and Care Manual

Whenever the alarm is operating, the green Power LED is illuminated to
indicate the unit is monitoring for CO. If the alarm senses dangerous lev-
els of CO, the red Alarm LED will flash and the alarm will emit an audi-
ble alarm pattern.
Operating and Alarm Characteristics
6. Model KN-COB-IC Operating Characteristics
Function LED Display Alarm Sound Unit Status Recommendation
Normal
Operation
Green LED
constantly on
None Normal AC
operation (sensing
no CO) and with a
good battery
None
Normal
Operation
Green LED flashes
every 30 seconds
None Normal DC
operation on 9V
battery backup
Verify AC power is
restored as soon as
possible to conserve
battery. Replace
battery.
Carbon
monoxide
alarm
Red LED flashes
with beeps.
Amber LED shows
initiating alarm
4 quick beeps,
5 seconds
silence,
repeating
Alarm condition.
Dangerous
concentrations of
CO detected
Refer to “What to do
When the Alarm
Sounds” (inside front
cover)
Smoke /
fire alarm
Red LED flashes
with beeps
3 long beeps,
1 second
silence,
repeating
Receiving signal
from an intercon-
nected smoke alarm
detecting smoke
Evacuate by your
escape plan
Low
battery
Red LED flashes
every 60 seconds
One quick
beep every 60
seconds
AC powered and
low or missing
battery
Install or replace 9V
battery.
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 battery or
unit malfunction
Replace battery.
If “Err” continues,
unit has malfunc-
tioned. Replace
immediately. Unit will
not respond CO
Normal
Test/Reset
function
Red LED flashes
with beeps.
Green and amber
LED’s on
4 quick beeps,
5 seconds
silence,
repeated once
Normal operation
when Test/Reset
button is pressed
CO not detected.
Alarm for test
purposes only
End of
unit life
indicator
Red LED flashes
every 30 seconds
Unit beeps
every 30
seconds
End of unit life
Replace unit immedi-
ately. Unit will not
respond to CO
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