FireClass FC501 fault records

Shorted 24A Output

Shorted 24R Output

The control panel's batteries charger is not working correctly

The fire panel resets to default data

Smoke detector only; the dirty threshold has been exceeded

Communication fault on display controller

Leakage to earth

Both the CSG paths are down

The fire signal is not acknowledged from the central station. This fault is latched, per the source.

Checksum fault

The CSG is installed but it is not communicating with the panel

Communication lost with IP controller

Communication lost with IP receiver

LOG fault

Communication loop fault controller

Left side loop short

Local short on loop controller

Loop negative signal open

Right side loop short

Loop positive signal open

The devices on the loop x (= 1, 2 or 3) do not communicate properly with the panel; check the quality of wiring. This is a parameterised message covering any of the three loops, as printed in the source.

The control panel batteries are empty

The control panel is not powered from the mains

The source names this fault message and gives only the applicable module/input numbering (x from 1 to 4); it states no cause, meaning, or remedy beyond that numbering. No cause is asserted here beyond what the source states.

The source names this fault message and gives only the applicable module/input numbering (x from 1 to 4; y from 1 to 5); it states no cause, meaning, or remedy beyond that numbering. No cause is asserted here beyond what the source states.

The source names this fault message and gives only the applicable module/input numbering (x from 1 to 4); it states no cause, meaning, or remedy beyond that numbering. No cause is asserted here beyond what the source states.

Loop device does not answer

Loop device without address

Open circuit on input module

Main fault

The CSG primary path is down

The source names this fault message and gives only the applicable module/input numbering (x from 1 to 4); it states no cause, meaning, or remedy beyond that numbering. No cause is asserted here beyond what the source states.

The source names this fault message and gives only the applicable module/input numbering (x from 1 to 4); it states no cause, meaning, or remedy beyond that numbering. No cause is asserted here beyond what the source states.

Data programming checksum fault

Aux Controller data programming checksum fault

A PSTN action not acknowledged

The communication with PSTN controller is lost

A repeater on the RS485 does not respond

Several loop devices have the same address

SC x (= 1 or 2) open terminal. This is a parameterised message covering either SC1 or SC2, as printed in the source.

SC x (= 1 or 2) short circuit. This is a parameterised message covering either SC1 or SC2, as printed in the source.

The CSG secondary path is down

Short circuit on input module

An output module relay is not switched

Telephone line fault

Detector head is not fitted correctly or missing from the base

Different loop device from that programmed in the panel

A loop device has an incorrect value