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Technical Support: +44(0)23 9269 6638 (option 3)
PAK200790_02A Oct 2019 ©2019 ELMDENE INTERNATIONAL LTD
Fault
LED #3
Condition
Possible Cause
Action
OFF
Normal Conditions
No faults
No action
YELLOW
Flash
x1
PSU Fault
See LED #4 Flash sequence table
Note LED #4 Flash sequence and refer to
table
Diagnostic
LED #4
Condition
Possible Cause
Action
RED
Flash
x1
No Output
Output fuse fail
Output overload or
short circuit.
Check and replace output fuse.
Disconnect and test output load.
RED
Flash
x2
No Battery
Low Battery Volts.
Battery disconnected
Battery heavily discharged.
Low Battery Volts.
Check battery connections
Check battery fuse.
Check battery condition / replace battery.
RED
Flash
x3
Battery Fault.
High impedance in battery
connection.
Ri max 750m
Ω
Battery internal fault (detected
during load test).
Check battery connections for corrosion.
Replace battery if aged.
RED
Flash
x4
Charger Fault.
Internal failure of battery charger.
Return to manufacturer.
RED
Flash
x5
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
RED
Flash
x6
Dual Path Fault.
Fault in output connections to the
load
(DUAL-PATH mode active only).
Check all cables between PSU and load.
OP1 & OP2
LEDs #5 or #6
Condition
Possible Cause
Action
GREEN
Normal operation
No faults.
No action
YELLOW
No Output
Output fuse fail
Output overload or
short circuit.
Check and replace output fuse.
Disconnect and test output load.
NOTE: after applying mains power
–
if red LED is ON (not flashing), this indicates a failed calibration check, although a calibration fault
is not indicated via the GEN fault relay. This fault should never be seen, but in the extremely rare event that it does, the PSU will
operate using default values, but some functions may be compromised, and you are strongly advised to contact Elmdene Technical
Support to return the product. Indication of a calibration fault will be suppressed (but not cleared) when the battery is connected.
