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15
LED Indicators
This smoke alarm is equipped with red and green LED
indicators. The red LED is located under the test button and
has several modes of operation. The green LED is located
under the Hush
®
button and indicates the presence of AC
power.
Standby Condition
The red LED will flash every 30–40
seconds to indicate that the smoke
alarm is operating properly. The green
LED will be lit, indicating the presence
of AC power.
Alarm Condition
When the alarm senses particles of
combustion and goes into alarm, the
red LED will flash rapidly (once every
two seconds). The rapid flashing LED
and temporal alarm will continue
until the air is cleared.
Hush Condition
The red LED will flash every 2 seconds
as long as the alarm is in Hush
®
mode.
Low Battery Condition
The red LED flash will be accompanied
by an audible chirp. Replace the
battery when this condition occurs.
Alarm Memory
This smoke alarm is equipped with
an alarm memory which provides a
visual indication when an alarm has
been activated. A lit red LED
indicates the memory condition. The
memory will remain activated until it
is reset by pushing the test button.
Smoke Sensing Chamber Operation
The alarm will “chirp” if any of the components in the smoke
sensing chamber fail. This chirp will occur between the
flashes of the red LED indicator light. If the “chirp” occurs at
the same time as the red LED flash, see
Battery Replacement
section for more information.
Operation