- Vacuum all smoke detectors
This should be done at least annually. If you live in a place with high levels of pollen or particles in the air (in the city), we recommend vacuuming at least twice a year. If you are able to use regulated compressed air, this is much more efficient at removing particles from the smoke chamber.
- False alarm – which sensor has triggered the alarm? (Wireless family only)
If you have the Cavius Hub and app, it is easy to locate which device has triggered the false alarm. Alternatively try to set all your devices to different channels by programming each device to itself. Then you will effectively have “standalone” smoke detectors, which makes it easier to identify the location of the nuisance alarm.
- Change location with another alarm
If you know which device is causing the false alarm, try changing its location with another device that does not cause issues. Mark (with a number or letter) the device that causes nuisance alarms and create a log. You can then determine whether it is the device or the location that is causing the false alarms.
- If the problem continues at a new location, i.e. it relates to the device, please contact the seller.
- If the problem continues at the same location with another device, there is something in the environment at that location that is affecting the way smoke alarms work. In this instance, you may want to change this location.
- Error source – Electromagnetic Fields: Electromagnetic fields can interfere with the electronics inside a smoke detector. These fields are often formed around fluorescent lamps, downlights, transformers, fuse boxes, fan motors etc. To avoid this, always install a smoke detector at least 100 cm from this type of equipment. NOTE: Electromagnetic fields do not drain the battery.
- Error source – Radio interference: Other components that contain radio transmitters can cause interference and affect the battery life of your smoke alarm. As radio signals are constantly changing, customers may begin to experience problems with devices that have been working fine.
Try to locate what has changed – is there any new equipment, development of an emergency network/4G. Any change which could result in interference for the smoke detector.
NOTE: Radio interference also drains the batteries on smoke detectors, as the detector constantly analyses the radio signal.
- Error source – Steam & Damp Air: Steam from the bathroom, washer/dryer or other sources that emit high humidity can cause the smoke alarm to sound.
If you have an issue with a device near a bathroom, move the device slightly away from the door to the washroom/bathroom. Also make sure that rooms with high humidity are well-ventilated and avoid releasing steam directly into the room where the smoke detector is. If you have an ionic device placed in a high-humidity area, you may want to switch it to optical. Optical smoke detectors are more tolerant than ionic to water vapour/steam.
- Error source – Dust & Dirt: Since air must pass freely through the detection chamber, smoke detectors will always attract a lot of dust and pollen particles. This can lead to false alarms, as well as making the device more sensitive, which results in more false alarms. Dirt will also build up over time as the smoke detector gets older, which can lead to false alarms.
Vacuum the smoke detectors regularly, being careful not to damage the electronics. If work that generates dust is carried out in a room with a smoke detector, either uninstall the device while the work is in progress or cover it. A detector dust cover can be purchased very easily. If the smoke detector is coming the end of its life and begins to give a lot of false alarms, it is worthwhile replacing it.
- Error source – Draft: In heavy drafts, the wind can move dust particles in a way that makes them look like smoke to a smoke detector.
Avoid installing a smoke detector near or in a draft.
- Error source – Temperature variation: When you open the door on cold winter days, rapid temperature changes can occur. Condensation can then form on/in a device which can cause a false alarm. This can also occur if the device is close to open windows/vents on cold days.
Avoid mounting the smoke detector in rooms or areas with large/fast temperature fluctuations.
- Error source – Gases from paint, varnish and strong cleaning agents: Gases from paint, varnish and other chemical agents may contain substances which the smoke detector reacts to.
Remove or cover smoke alarms when refurbishing the room. However, do remember the fire hazard surrounding chemical use. All cloths and rags MUST be soaked and shut into sealed containers stored outdoors or burned under controlled conditions.