Common causes of false alarms & how to stop

Quick guide on how to stop alarm from false alarming There are a number of reasons why your alarm could be false alarming - from environmental

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Quick guide on how to stop alarm from false alarming

There are a number of reasons why your alarm could be false alarming – from environmental issues to damaged equipment. Here is a list of the most common causes of false alarms with some with suggested solutions:

  • Environmental issues: (Strong light, draughts and heating can cause false alarms) A solution is to replace PIR with MIR
  • Spiders: Use a vacuum cleaner to clean around the sensor to fix this problem
  • Poorly fixed sensor: Check the sensor cover is installed properly
  • Faulty device: Replace a sensor if its faulty
  • Cable damage: Fix the damaged cable if this is the issue
  • Poor sensor termination: Make sure wires are tightly screwed in inside the sensor
  • Faulty zone on control panel / expander: Try a different zone, or replace the PCB
  • Faulty alarm battery: Replace your old alarm battery with a new one

More in-depth user guide

There are a number of things which could cause your alarm from false alarming. The most common reasons for a burglar alarm false alarming are:
Environmental: (for example, strong light and draughts or central heating and fires). To fix a problem with heat or light you typically need to replace a standard PIR with an dual technology MIR detector

Spiders: To fix a problem with spiders you should thoroughly clean around the sensor with a vacuum cleaner or duster.

Poorly fixed sensor: To fix a sensor that is badly installed you will need to check the sensor cover is installed correctly and not causing a tamper fault.

Faulty device: To fix a faulty sensor you need to replace the sensor with a new one.

Cable damage: To fix a faulty sensor you need to replace the sensor with a new one.

Poor sensor termination: To fix a badly terminated sensor you will need to open the sensor, and make sure the cables are terminated correctly – i.e. the wires are tightly screwed in.

Faulty zone on control panel / expander: To fix a faulty zone, you will need to either try a different zone on the panel or replace the PCB (i.e. the main circuit board) in your panel, or replace the expander unit.

Faulty alarm battery: To fix a faulty battery you need to replace the battery in your main alarm panel with a new one. Alarm batteries should last 4 to 5 years.

If you want a professional engineer to fix your alarm system, get in touch with the SmartSecurity team.

Watch how to video

If you want to try to fix your alarm false alarm problem yourself, watch the following video for tips:

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