Loss of Supervision / Missing Device / RF Supervision

Loss of Supervision / Missing Device / RF Supervision

This is a critical status! Wireless devices (pullcords, pendants, repeaters, and some fire signaling devices) are supervised by your system. If your system sends in a Loss of Supervision/Missing, this means that a wireless device cannot be found by your alarm system. First, you should change the battery to the wireless device, then retest with our support agent by calling 1-866-442-5050 Opt 2. If after changing the battery and the device does not work, then you should contact your system vendor for repairs.

The Loss of RF Supervision signal indicates that one of your wireless devices is not correctly communicating to the main alarm panel. All wireless devices regularly communicate to the alarm panel to check that the signal is being correctly received. This ensures the devices are not being interfered with. Should a Loss of RF Supervision signal be received, the device in question may no longer be able to reliably send alarm activations in the case of a genuine break and enter event.

Possible causes:

  • As the batteries in a device get weaker, the signals range is reduced to the point where the device is no longer within the range of the main panel.

  • Some large or dense metal object has been introduced between the device and the main panel.

  • The device has become faulty.

Possible solutions:

  • Change the batteries in the device

  • Remove the metal object or have a technician reposition the device.

  • Have a technician replace the faulty device.

Warning Note: Please ensure you place your system on test before you inspect or change the batteries to prevent triggering a false tamper alarm. You can do this by phoning ADVCOMM at 1-866-442-5050

    • Related Articles

    • Loss of Supervision (Restores as Loss of Central Plg Res)

      If your system is equipped with a cellular communicator (such as a Telguard) and link supervision is enabled, the cellular network checks in with your cellular communicator every so many seconds. If you receive a ‘LOSS OF SUPERVISION’, this means the ...

    • RF Low Battery

      An RF Low Battery signal occurs when an wireless/radio frequency (RF) device on your alarm system has a battery that is running low or is completely flat. ‘RF’ stands for Radio Frequency, which means that the device is wireless and runs on batteries ...

    • Power Failure

      A Power Fail signal is received when your security system registers a loss of mains power to the alarm system. During a power fail a standby battery takes over supplying power to the security system and should enable the alarm system to operate. The ...

    • Ground Fault

      Ground faults on systems (more common on fire systems) are caused by wiring and/or device issues. Please contact the service vendor to have a technician sent to trouble shoot.

    • Repeating Pullcord Alarms (30-Minute Reset Cycle)

      We are receiving alarm signals from this location approximately every 30 minutes. In most cases, repeated alarms occurring on a 30-minute cycle indicate that the pullcord has been removed from its wall mount or is not properly secured. On this ...