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Control board alarm
Problem
Cause
Action
The battery voltage
reached during the
charging cycle or during
the equalization cycle is
too high (over 2.65 V/cell)
The battery is sulphated
Repair the battery
The nominal voltage of
the battery is not correct
Check compatibility
between battery voltage
and charger voltage
One or more cells are
shorted
Repair battery
AC Input fails or missing
Wrong AC input settings
Adjust AC input settings
to lower voltage
Output fuse blown
Replace output fuse and
adjust AC input setting
The battery voltage hasn’t
reached the gassing point
within 12 hours of charge
Wrong AC input settings
Adjust AC input settings
to lower voltage
The nominal voltage of
the battery is not correct
Check compatibility
between battery voltage
and charger voltage
Output fuse blown
Replace output fuse and
adjust AC input setting
One or more cells are
shorted
Repair battery
Battery temperature too
high (charger will restart
after 30 minutes)
AC input mains is too high
or it is too low
Check AC mains and the
charger AC input setting
Check the charger
installation and location,
in order to allow
ventilation
Charger ventilation
slots obstructed or bad
location
Remove objects which
may obstruct slots
Battery high temperature Check battery installation
and battery location, in
order to allow ventilation.
Please evaluate to reduce
the charger current
Battery type mismatch
Battery not connected
properly
Check battery
connectors/harness
Charger has been
connected to forklift
motor connector
Disconnect forklift motor
and connect battery
Output cables reversed
Check charger,
connectors and battery
polarities. Output fuse is
probably blown.
Battery nominal voltage
not correct
Check compatibility
between battery voltage
and charger voltage
