ENGLISH • 37
TROUBLESHOOTING
FAULT CODES
Code Condition Possible Cause Solution
F01
The battery voltage is less than
10V after 10 minutes of charging.
Maybe there is short circuit in
the battery.
Go to a professional Lab to test the
battery.
A load may be connected to
the battery.
Disconnect the load and attempt to
charge again.
The battery voltage is still
less than 13V after multiple
reconditioning attempts.
The battery is sulphated
beyond reconditioning.
Replace the battery.
F02 Charge voltage is too high. Battery is 24V, not 12V. Confirm that battery is 12V.
F03 Charge current is too high.
A load may be connected to
the battery.
Disconnect the load and attempt to
charge again.
F04
The temperature of the charger
is too high.
High ambient temperature.
Ensure adequate ventilation. The
charger will resume charging after
cooling.
F05
Maintenance mode change to
Floating charging Mode
The charge current is too low,
can’t fully charge the battery
Select a higher charge rate.
Maybe there is short circuit in
the battery.
Go to the specialist to check the
battery.
The battery is used during
charging
Disconnect the load.
The self-discharging current is
larger than the floating current.
Please select higher charging rate
charger.
F06 Reverse polarity.
The battery clamps are
incorrectly connected.
Disconnect clamps and ensure
proper connection.
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