SMS SenTRI - Typical Fault Messages and Actions; Fault Message Reference Table

Typical fault messages
The table below shows some of the more typical fault messages and indications that may appear at the panel if
there are faults in the system. It also gives the meaning and possible rectification action for each fault.
Message Indication Meaning Action
Mains failed The mains supply to the
control panel has failed.
Restore the mains supply
to the control panel.
Battery
discharged n
The battery supply to the
Control Panel has been
fully discharged.
Check the battery and
replace if necessary.
Battery
disconnected
The battery supply to the
Control Panel has been
disconnected.
Reconnect the battery.
Monitored
line input OC
or SC
The monitored line input
has an open or short circuit
fault.
Check the wiring and
ensure the end of line
device is connected in the
circuit.
Master
Alarm(s) OC
or SC n
There is an open or short
circuit fault on the master
alarm wiring.
Check the wiring. Ensure
the end-of-line device is
connected in the circuit.
Lost Device The Device is not
communicating with the
Control Panel via the Loop.
Additional indication given
if it is a Sounder device.
Check the connections to
the device.
Sensor out of
specification
The device indicated is not
functioning correctly.
Device needs replacing.
Wiring
changed SC at
card n
There is a short circuit on
the loop n wiring.
Identify the device where a
cable fault has occurred
and remove the fault.
Interface
input OC /SC
There is an open or short
circuit on the input line of
an interface.
Locate and remove the
wiring fault. Ensure the
end of line device is
connected in the circuit.
Device Mains
failed
There is a mains supply
failure at an interface unit,
repeat panel or mimic
panel
Check the fuse and mains
supply to the equipment.
Device
Battery fault
The battery supply at an
interface unit, repeat panel
or mimic panel has failed
the load test.
Check the battery and
replace if necessary.
15
fire system
On
Flashing
Fault
Power fault
Fault
Power fault
Fault
Power fault
Fault
Fault
Sounder
Fault
Sounder
Fault
Fault
Fault
Fault
Fault