What are the five most common faults with burglar alarms?

Ensuring your property is fitted with a burglar alarm system will provide many benefits, including deterring intruders, protecting your family and possessions, thus giving you peace of mind. However, those benefits will only last if your alarm system continues to function properly.

Alarm systems will need to be maintained and regularly serviced. In our experience, there are 5 most common faults that occur with burglar alarms, so having a servicing schedule to routinely check for these and ensure that they are not present in your alarm is very important:

Almost any electrical device can be prone to loose connections, and their existence is frequently due to poor installation. A loose connection can cause a number of problems, including complete malfunction, an inability to charge correctly – which can in turn render the system useless during a power cut – and a lack of intrusion detection. Connections can commonly be affected by extremes of weather resulting in excessive heat or moisture.
Every burglar alarm has a battery, whether it’s the sole source of power or used as a back-up, in general batteries will have a lifespan of two to five years. Batteries are therefore a vital component of any burglar alarm system and the most common fault here is that the battery run out. A low battery can cause the system to fail completely, so it’s important not to ignore a beeping keypad or a flashing light or warning code on the display. It may be that the battery simply needs fully charging, but if the issue persists it will need replacing.
All burglar alarms function through sensors. These are designed to detect vibrations/movement measuring heat changes/door position using a magnetic door contact. Sensors can develop faults and either not detect when they are supposed to or if faulty they can also cause false alarms as they detect intrusions even when there are none. Correct installation and regular maintenance can prevent issues with your sensors.
The control panel is the system’s engine room, in that it controls and connects everything together. On modern systems, the control panel will carry out a number of functions such as managing zone types and capacity, arming and disarming the alarm, and logging events and activation records. If the control panel isn’t functioning properly it can show tamper and zone faults, which might make it difficult to set the alarm, or it might freeze and become unresponsive.
The loud ringing that an alarm makes when it detects an intrusion is known as the ‘bell’. If this is faulty, it may fall silent when activated and therefore fail to attract attention. This could be caused by a low battery, in which case we would repair or replace it during the service.


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