Fault codes by panel

Flashes yellow when there is a fault on any part of the fire alarm system. It is always lit together with at least one other Fault light that shows the precise type of fault detected.

Indicates one or more of: the mains supply is too low or has failed completely; the mains fuse (F1) has ruptured; the battery fuse (F2) has ruptured; the battery supply voltage is too low; or the panel's power supply…

Flashes yellow when there is a fault on the output's auxiliary 24V supply — typically because the 24V auxiliary output (used to supply relays switched by the remote output) is overloaded and its protection fuse has…

Flashes yellow when the master panel cannot communicate with one or more repeater panels (if fitted). Access level three fault diagnosis shows which repeater(s), by zone light, are in fault.

All sounder circuits are monitored periodically for open- and short-circuit faults (unless disabled or in an alarm condition). If a fault is detected, this light pulses yellow. An unpolarised sounder will also show a…

If the green Supply Present light is not lit, either both the mains supply and standby batteries have failed, or the Power Supply PCB, the Main Control PCB, or the cable connecting them is faulty.

Occurs as a result of a momentary disturbance in the panel's microprocessor. In access level three fault diagnosis this shows as Zone 3's Fault light lit.

Occurs when site-specific data held in the panel's microprocessor is found to be corrupt. In access level three fault diagnosis this shows as Zone 2's Fault light lit.

Occurs when the panel's microprocessor has failed to operate correctly; the watchdog circuit attempts to restart it. If it cannot, the General Fault and System Fault lights cycle continuously and the internal sounder…

All zone circuits are monitored for open- and short-circuit faults and detector head removal (unless the zone is in alarm, test or disabled). The relevant Zone Fault light pulses yellow. Access level three fault…

Flashes yellow when there is a fault on any part of the fire alarm system. It is always lit together with at least one other Fault light that shows the precise type of fault detected. The panel's fault output also…

Indicates one or more of: the mains supply is too low or has failed completely; the mains fuse (F1) has ruptured; the battery fuse (F2) has ruptured; the battery supply voltage is too low or the batteries are in poor…

Flashes yellow when there is a fault on the output's auxiliary 24V supply — typically because the 24V auxiliary output (used to supply relays switched by the remote output) is overloaded and its protection fuse has…

Flashes yellow when the master panel cannot communicate with one or more repeater panels (if fitted). Access level three fault diagnosis shows which repeater(s) are in fault, by zone light.

The Sounder Status light pulses yellow when either a conventional sounder circuit has a fault, or an AlarmSense sounder on a zone circuit has a fault (in which case the relevant Zone Fault light also pulses). All…

If the green Supply Present light is not lit, either both the mains supply and standby batteries have failed, or the Power Supply PCB, the Main Control PCB, or the cable connecting them is faulty.

Occurs as a result of a momentary disturbance in the panel's microprocessor. In access level three fault diagnosis this shows as Zone 3's Fault light lit.

Occurs when site-specific data held in the panel's microprocessor is found to be corrupt. In access level three fault diagnosis this shows as Zone 2's Fault light lit.

Occurs when the panel's microprocessor has failed to operate correctly; the watchdog circuit attempts to restart it. If it cannot, the General Fault and System Fault lights cycle continuously and the internal sounder…

All zone circuits (up to eight) are monitored for open circuit and short circuit faults and detector head removal, unless the zone is in an alarm condition or is in test or disabled. The relevant Zone Fault light pulses…