Indicators explained
Normal operation
Power up. Twist off the alarm from the mounting
bracket, see the 'Quick start guide' . Remove the
battery tab to power the alarm. The alarm LED will
blink in red and yellow once to show that the alarm
has been powered up and is now in standby mode.
Standby. In standby mode, there are no active visible or
audible indications to the occupant. To confirm that the
alarm is operational, perform a weekly button test.
Weekly button test. To test the alarm, see the section 'Manually testing your alarm' .
Sensing fire. As soon as the smoke alarm senses smoke or heat, it will sound the
alarm, the alarm LED will blink rapidly in red and the radio LED will light up in green.
In addition, the red LED on the Visit receiver lights up and it starts to sound, flash or
vibrate depending on the receiver. Follow the instructions in the section 'What to do in
the event of a fire' and evacuate the building.
Silence false / nuisance alarms. Occasionally smoke alarms can be activated by
phenomena other than fire, such as dust, insects, cooking smoke and shower steam.
Once you are sure it is a nuisance alarm, press the test/silence button to silence the
alarm for 10 minutes. The alarm LED blinks in red every 8 second for 10 minutes and
the Visit receiver LED will time out within 1 minute. Pressing the test/silence button will
make the unit less sensitive, but if a large amount of smoke/steam/dust is observed,
the unit will remain in alarm.
Fault conditions
Low battery. The alarm will emit a short beep and the alarm LED will blink in yellow
when it becomes partially depleted. When electronic self-testing indicates that the
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Radio LED
Alarm LED
battery is becoming low, the alarm will beep, and the alarm LED will blink in yellow
at the same time about every 48 seconds to warn the user. This indicates that the
batteries must be replaced. Also, make sure to check the smoke alarm expiration date
which is given on the sidewall of the alarm.
Contaminated chamber. If the alarm sounds without any apparent smoke present,
press the test/silence button to silence the alarm for 10 minutes as described above. If
the alarm sounds again it may be dusty. Pressing the test/silence button again, within
4 minutes of the alarm re-sounding, will cause the alarm to compensate for chamber
contamination. This will normally resolve the problem. If the alarm re-sounds for the
third time, it is likely that the alarm may be excessively dusty and must be replaced. If
it is not convenient to replace it immediately, pressing the test/silence button within
4 minutes of it going into alarm (for the third time) will silence the alarm for 8 hours –
however, it will give two short beeps (second apart) every 10 minutes to remind the
user it has been disabled. If the contamination clears, the alarm will return to normal
operation.
Note: This does not reduce the users' fire protection, as a smoke alarm in continuous
alarm due to a fault, is useless and must be silenced – by taking the alarm down or as
described here. This procedure has the added benefits that the user is reminded every
10 minutes by two short beeps that the alarm needs to be replaced, and that if the
problem clears the alarm will return to detecting fire. If the dust level is too high, the
alarm LED blinks 4 times in yellow. Cleaning or replacing the chamber cover should
only be carried out by suitably trained personnel.
Faulty smoke chamber. In the unlikely event of the smoke sensing chamber becoming
defective, the alarm will give 2 short beeps with 2 alarm LED blinks in yellow every 48
seconds. The alarm must then be replaced. If it is not convenient to replace it imme-
diately, pressing the test/silence button will silence the beeps and stop the alarm LED
from blinking for 12 hours. This can be repeated as required.
End of Life. When the sensor has reached its end of life, the alarm will beep and the
alarm LED will blink 3 times in yellow every 48 seconds.
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