4020 OPERATORS MANUAL Page 45
Document No: 4020-M010 1st February, 1997 Issue 2.0
10.3 Fault Conditions
The table below lists the various fault messages displayed by 4020 FIP
FAULT MESSAGE
CAUSE OF FAULT
FAULT RECTIFICATION
Fire Alarm Zone
FAULT
Open Circuit on Fire
Alarm Zone
- Missing End-of-Line
resistor.
- Break in zone cabling
- Detector removed from
base
Check Detectors in zone.
If all detectors installed
Call service company for
repair.
Bat :FLT
Battery Fault
Batteries disconnected
from Charger circuit.
Reconnect batteries to
the panel.
Bat: LO
Battery Voltage is Low
- Battery charger not
working,
- Batteries being charged
after panel has been
operating for extended
period on battery supply
Check battery voltage.
Check if booster LED is
"ON" . If LO condition is
indicated for more than 8
Hours call service
company.
Bat: HI
Battery charger voltage is
set too high.
Remove batteries and
check charger voltage,
should be 27.6 VDC.
Refer section 9.3 for
battery adjustment.
Check battery charger
fuse F2.
Control Circuit Open
Open circuit detected on
supervised control circuit
output.
Missing End-of-line
resistor.
- break in cabling
- output Fuse blown.
Check and replace.
Control Circuit Short
Short circuit detected on
supervised control circuit
Blocking diode missing/or
wired incorrectly for
supervised load.
Short on zone cabling
Ground Fault
Short to Earth on external
field wiring
Check external field
wiring for short to earth
connection.
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