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PAK200609_01F Jan 2021 ©2019 ELMDENE INTERNATIONAL LTD
Fault Diagnostic table
–
Internal - Engineer
Orange LED
Diagnostic
Green LED
Mains
Condition
Possible Cause
Action
O
FF
O
N
Normal
operation
Mains present
Battery fully charged
None
O
FF
Standby
Operation
Mains Lost. No faults present
Battery driving load
Investigate loss of mains
F
LASH
C
ONTINUOUS
O
N
or O
FF
No output
Output fuse blown
Output overload
Output short circuit
Check and replace output
fuse
Disconnect output load and
test load
1
P
ULSE
O
N
Battery
Charging
No faults active
Battery charging normally but
< 90% of full charge
None
2
P
ULSES
O
N
No Battery
Battery disconnected
Battery fuse blown
Battery heavily discharged
Check battery connections
Check battery fuse
Check battery condition
Replace battery if aged
O
FF
Low Battery
Volts
Standby Mode
Battery almost discharged
Restore mains
3
P
ULSES
O
N
or O
FF
Battery Fault
High impedance in battery
connection
Battery internal fault
Check battery connections
for corrosion. Replace
battery if aged
4
P
ULSES
O
N
or O
FF
Charger Fault
Internal failure of battery charger
Return to manufacturer
5
P
ULSES
O
N
or O
FF
Battery
Temperature
Probe Fault
Battery temperature monitor
disconnected or damaged
PSU running in Safe Mode
Check temperature sensor
connections and condition
of sensor.
Replace if suspect
