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7
CAUSES AND REMEDIES FOR FALSE ALARMS
A smoke alarm detects and reacts to smoke particles in the air. The smoke particles set off the smoke
alarm. This function means that the smoke alarm will also react to dust particles, moisture or other partic-
les in the form of pollen, insects and so on. These factors are usually the cause of a false alarm.
CAUSE OF ERROR
ACTION
Steam and moisture. A false alarm may occur if the smoke
alarm is placed too close to a bathroom, laundry room, or
other location with high air humidity.
Place the smoke alarm at least 2 metres from any
bathroom, laundry room, or other location where high air
humidity may occur.
Dust and dirt. Since air passes freely through the detection
chamber, the smoke alarm will always attract some dust
and pollen particles. This can lead to a false alarm. The
smoke alarm may also become more sensitive for this
reason, which could cause false alarms. In addition, dirt
will collect over time, as the smoke alarm ages, which may
result in false alarms.
Regularly vacuum the smoke alarm, using a plastic nozzle
to avoid damaging the electronics. Avoid fitting smoke
alarms in places with a lot of dust and dirt. You can put a
‘hat’ over the smoke alarm or remove it entirely while you
are carrying out renovation work at home that involves
sawing, sanding, etc.
Draughts, dust and air flows. False alarms may be caused
by the smoke alarm being placed too close to doors,
windows, ventilation systems, fans, air ducts, heat pumps
or suchlike. This can lead to dust particles being carried up
into the detection chamber.
Do not install smoke alarms in a draughty location, close to
windows or doors, ventilation, fans, air ducts, heat pumps
or suchlike. Find a better location for the smoke alarm,
further away from draughts and air flows.
Temperature variations. Temperature variations may lead
to condensation in the detection chamber. This may hap-
pen, for example, if the smoke alarm is placed in a room
where windows are opened for ventilation in the winter,
or close to exits, balcony doors or other places that switch
between hot and cold.
Avoid fitting smoke alarms in rooms with rapid tempe-
rature changes or close to windows and doors that are
frequently opened and closed. Move the smoke alarm to a
place with a more even and stable temperature.
Generally unfavourable positions. Incorrect positioning in
an unstable indoor environment, a draughty area, close
to electronic apparatus (EMC) and lighting may cause a
false alarm.
Place smoke alarms at least 5 metres from open fires,
stoves or other heating devices; 2 metres from ventilation
ducts, heat pumps and air conditioning; 1 metre from light
bulbs and fluorescent tubes.
TESTING THE SMOKE ALARM
Test your smoke alarm by pressing the test button
and holding it in for around 5 seconds. The smoke
alarm will respond by emitting an alarm signal.
When you release the test button, the alarm signal
will stop after 10 seconds.
IMPORTANT:
When testing connected alarms, it
can take up to 30 seconds for all the connected
alarms to respond/emit a signal. Hold the test
button in until all the smoke alarms have emitted
the alarm signal.
1. Always test all alarms after installation to ensu-
re that they are functioning properly.
2. The test button performs a full test of all
functions. Never use a naked flame to test the
smoke alarm, since this can destroy the alarm.
3. Test your smoke alarm routinely once a week.
4. Always test your smoke alarms after a long
period of absence from the home and always
when you return from a holiday.
5. Always stand at arm’s length when testing your
smoke alarm to avoid damage to your hearing.
FOR YOUR SAFETY! NEVER IGNORE A SMOKE
ALARM THAT HAS GONE OFF. WHEN YOU
HEAR THE ALARM SIGNAL, YOU MUST GIVE IT
YOUR FULL ATTENTION AND ACT
ACCORDINGLY.
PAUSE FUNCTION
The smoke alarm has a combined button for the
test and pause function. The pause function allows
you to stop the alarm signal if it goes off due to
a false alarm, for example. Activate the pause
function by pressing the test/pause button while
the unit is emitting the alarm signal. The alarm will
stop for 10 minutes.
The smoke alarm will be reset at normal sensitivity
once the 10 minute pause is over. If necessary,
press the pause button again to put the alarm
back on pause.
If you have smoke alarms connected in series, you
can pause all the connected units by pressing the
test/pause button on the unit that is emitting the
alarm signal.
CLEANING AND MAINTENANCE
The smoke alarm should be cleaned regularly, and
at least twice a year. Clean your smoke alarm by
vacuuming externally along the opening to the
detection chamber to remove dust and dirt.
IMPORTANT:
Do not try to open the cover to
clean inside the smoke alarm. This will negate the
warranty.
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