This means that the battery is almost empty and needs to be replaced. This signal will sound for 30 days.

Replacing the battery:

• Remove the smoke alarm from the base plate
• Remove the battery.
• Press the test button for a few seconds to remove the residual current.
• Place the new battery in the smoke alarm (note the plus and minus).
• Only use recommended batteries.
• Test the smoke alarm by pressing the test button for a few seconds. A loud pulsing sound will link which will stop automatically when the test button is no longer pressed.
• Place the smoke alarm on the base plate.

This means that the smoke alarm is not functioning properly and must be replaced.

A false alarm, after a period of proper functioning, is mostly caused by dust (particles) in the smoke chamber, or wrong location of the smoke alarm.

Click here for the list of places not suitable for installation of a smoke alarm.

It is very important a smoke alarm is maintained properly from the day of installation. If you do not do this, the smoke chamber will gradually contaminate, and as soon as the contamination reaches a certain level, the smoke alarm will start giving a faulty alarm. This is not covered by the warranty as it is caused by poor maintenance.

If contamination of the smoke chamber is causing the faulty alarm, what you can try is to thoroughly vacuum clean your smoke alarm on all visual openings. To avoid faulty alarm it is recommended to do this at least once a month. You do not have to remove the smoke alarm from the ceiling, it is enough if you vacuum clean the outside of the smoke alarm using the vacuum cleaner.

If this does not help the last possible solution is the use of compressed air.

Unfortunately, if this also does not help, the smoke chamber contamination is so deep that it is beyond repair and the smoke alarm will have to be replaced.

• Test your smoke alarm monthly and after a period of absence
• Clean the smoke alarm regularly (once a month) with the soft brush of the vacuum cleaner

This smoke alarm has a replaceable 9V Carbon-Zinc battery.

• Remove the smoke alarm from the base plate
• Remove the battery
• Press the test button for a few seconds to remove the residual current
• Place the new battery in the smoke alarm (note the + and -)
• Only use recommended batteries, see instructions for use
• Press the test button to test the smoke alarm, a loud pulsing sound will be heard until the test button is released
• Place the smoke alarm on the base plate

This model of smoke alarm cannot be linked.