6. Operating Characteristics
AC Powered in Normal Stand-by Operation
flashes
alternately
flashes
alternately
D
isplay Shows Alarm Sound Unit Status Unit Condition Recommendation
If at any time you test the alarm and it does not perform as described,
have it replaced immediately.
None Normal
operation
sensing for CO
Battery is fully
charged
None
None Charging
battery pack.
Initial power-
up or power
was reset.
Battery discharged
less than 10 hours
hours on AC.
Battery is in
charge state.
Keep unit on AC to
fully charge battery.
“Lb” will disappear
once battery is
charged depending
on initial charge.
“0” and
flashing dot
“0 alternating
with “Lb”and
a flashing dot
1 “beep” every
15 seconds
Battery
disconnected
or not
charging
Battery discharged
or disconnected
longer than 10
hours
Connect battery
pack. “Lb” will
disappear once
battery is charged
depending on initial
charge.
“0 alternating
with “Lb”and
a flashing dot
DC Powered in Battery Backup Operation
Display Shows Alarm Sound Unit Status Unit Condition Recommendation
None Battery backup
operation,
sensing for CO
Battery is fully
charged. First 5
minutes on
battery backup
Connect to AC
power
“0”
None Battery
conserve mode,
sensing for CO
Battery is fully
charged and after
5 minutes of
operation on
battery backup.
Normal battery-only
operation. To
recharge battery
connect to AC
power.
“0” or CO
concentration
displayed once
every 60
seconds;
flashing dot.
1 “chirp” every
15 seconds
Battery
conserve mode,
sensing for CO
Battery is partially
discharged, after
5 minutes of
operation on
battery backup.
Confirm battery
connection if fully
seated& oriented
properly. Connect
to AC power to
fully charge battery.
Call Kidde customer
service at
1-800-880-6788 if
condition continues
“0” or CO
concentration
and “Lb”
displayed once
every 60
seconds;
flashing dot.
None Battery
conserve mode,
sensing for CO
Battery is partially
discharged, first 5
minutes of
operation on
battery backup.
Connect to AC
power to fully
recharge battery
“0” or CO
concentration
alternating
with “Lb”.