This unit is fitted with LED indicators and an alarm buzzer to display and diagnose any
problems in operation. In the event of a malfunction, the unit will sound the buzzer to alert
you prior to shutting itself down. You should immediately check which LEDs are glowing to
determine the cause of the alarm.
LED Indicator
Meaning
BATTERY OVERTEMP
T
he battery temperature is too high for safe charging.
Fix:
The battery may be defective or there may not be adequate ventilation to
cool the battery.
Check that the battery is not defective. If it is working correctly, reposition
the battery for better air circulation.
OVERTEMP
The unit’s internal temperature is too high for normal operation.
Fix:
The internal cooling fan may have failed or there may not be adequate venti-
lation to cool the charger. Check that the cooling fan is still working; if it is
not then the unit must be returned to an authorized service center for repair.
If it is working correctly, remount the battery charger for better air circulation.
LOW INPUT
The battery charger’s input voltage is too low for normal operation
Fix:
Check that the power source is properly rated for the battery charger. Check
that the input cables and connection are free of damage and corrosion.
If all of the above are in proper working order, the cause is likely an internal
component failure and the unit must be returned to an authorized service
center for repair.
LOW OUTPUT
The battery charger’s output voltage is too low for normal operation
.
Fix:
The charging current might be exceeding the unit’s maximum rating causing
the output voltage to drop to maintain the current at that level. Check
that the charging current is not over its limit, by using a multimeter at the
output terminals. If it is, reduce the load connected to the charger.
Check that the output cables and connections are free of damage and
corrosion.
If all of the above are in proper working order, the cause is likely an internal
component failure and the unit must be returned to an authorized service
center for repair.
Troubleshooting
