First Alert MODEL FCD3N - Manual (Page 5)

4
WHAT THE LIGHTS AND ALARM TONES MEAN
WELCOME CHIRP.
Horn chirps and battery light
blinks green once when battery
is first connected.
ALARM RECEIVING
BATTERY POWER
BATTERY light flashes GREEN
twice a minute. Horn is silent.
LOW BATTERY WARNING.
The BATTERY light turns
YELLOW. It flashes and the
horn “chirps” twice a minute.
This warning should last for up
to 30 days, but you should
replace the battery as soon as
possible. See Chapter 4 for
details.
DURING TESTING -
GOOD BATTERY
When you press the Test/
Silence button, all three lights
will flash briefly, and the horn
will sound.
If the battery is GOOD,
the BATTERY light flashes
GREEN.
DURING TESTING -
LOW/WEAK BATTERY
When you press the Test/
Silence button, all three lights
will flash briefly, but the horn
may stay silent.
If the battery is WEAK, the
BATTERY light flashes
YELLOW.
IMPORTANT! Replace a weak
battery immediately!
CO ALARM
REQUIRES SERVICE
The SERVICE light flashes
YELLOW and the horn “chirps”
three times every 30 seconds.
CO Alarm needs to be serviced
or replaced. See Chapter 4 for
details.
CO ALARM IS IN ALARM.
Sensor has detected enough
CO to trigger an alarm. ALARM
light flashes RED rapidly and
horn sounds loudly. See
Chapter 3 for details on how
to respond to an alarm.
“ALARM-MOVE
TO FRESH AIR”
During an alarm, move
everyone to a source of fresh
air. Do NOT move the CO
Alarm!
BATTERY SERVICE ALARM
BATTERY SERVICE ALARM
BATTERY SERVICE ALARM
BATTERY SERVICE ALARM
BATTERY SERVICE ALARM
BATTERY SERVICE ALARM
BATTERY SERVICE ALARM
M06_1042_001.E Page 4 Wednesday, July 12, 2000 9:26 AM