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Amended: Jan 2014
“Earth Fault”
An earth fault may be associated with other faults or random fires.
This should be cleared before trying to sort out these other faults as it may be the root cause.
Power down the panel, disconnect all loops, sounders and relay connections. Ensure the panel is
correctly earthed.
Check the +ve & -ve cables to screen/earth, ensure greater than 1 Mohm. Check that the screen is
not tied to building earth.
Repower the panel if the fault remains with the cables disconnected, examine the Pcb’s for
contaminants or shorts.
“Sounder 1 or 2 Fault”
This is a fault on one of the two conventional sounder channels. Common causes would be:-
One of the fuses has blown.
End of line resistor not fitted.
Sounder wired incorrectly. See wiring diagram.
Sounder circuit is shorted.
“FRE, FPE, Fault relay Fault”
These are the other panel outputs, faults on these could be:-
End of line resistor not fitted.
Output line is shorted.
The panel fails to auto-learn past a device
This may be seen with short or open circuit on the loop, the problem will probably be located at the
last device detected or the next one along. See the above on open circuit positive/negative.
If there is no associated open circuit the device may be faulty, link out the device after the last one
auto-learned and try again. If this fails link out the last device detected and auto learn again. If either
device is causing the problem replace it.
Once the faults have been removed from the panel and it shows system healthy after a reset go to the
system details screen and check the numbers of devices on each loop is the same as what has been
installed on each loop (spur isolators do not show on system details). If this number is less than
expected the following may be the cause:-
If spur isolators are fitted the spurs may not be correctly installed. To check this do test device on
what should be the last device on each spur (see locating a fault below), if the incorrect device LED is
on work back along the spur with test device until a device is correctly identified. The problem may be
that device or the next one along the spur, see open circuit negative/positive above.
If no spur isolators are present or the spurs are all working ensure the site devices have all been
connected to the loop.
