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End of Life
Once the Alarm passes its 10th year of installation, it will give 3 short chirps with 3 yellow LED flashes
every 48 seconds to indicate it has reached its end of useful life.
The entire Alarm must be replaced (Also check the replace by date on the label on the side of the
Alarm). Disconnect the mains first and replace the Alarm - see ‚Removing the Alarm‘ section.
Temporarily Silencing the Fault chirps
If the test / hush button is pressed on an Alarm that is giving fault chirps and yellow LED fault indica-
tor flashes, the Alarm will be silenced (Fault Hush mode) for a period of 12 hours. However, the Alarm
will sound / function as normal within that period should it detect Fire (except if the fault detected
is a sensor fault). The yellow LED fault indicator will continue to flash as before to indicate the fault
is still present. This is a useful feature should the fault occur at night as it keeps the disturbance at
a time when people in the building are trying to sleep to a minimum. The fault chirps would return
12 hours later, which perhaps may be a more suitable time to address the fault issue with the Alarm.
In case of low backup battery voltage and end of life fault chirps, this can be repeated as required. A
sensor fault condition can only be hushed once.
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