Troubleshooting Fault Codes - Mäktig 710135 Owner's Manual

10. TROUBLESHOOTING FAULT CODES

Code Condition
Battery voltage is
less than 10 V after
10 minutes of
charging
F01
Battery voltage is
still less than 13 V
after multiple
reconditioning
attempts
Charge voltage is
F02
too high
Charge current is
F03
too high
Temperature of the
F04
charger is too high
Battery does not go
into Maintenance
F05 mode after being
charged for 24
hours
F06 Reverse polarity
Possible Cause
Short circuit in the
battery.
A load may be
connected to the
battery.
The battery is
sulphated beyond
reconditioning.
Battery is 24 V, not 12
V.
A load may be
connected to the
battery.
High ambient
temperature.
Charge current is too
low, cannot fully
charge the battery
Short circuit in the
battery.
The battery is used
during charging
Self-discharging
current is larger than
the floating current
Battery clamps are
incorrectly connected.
17
Solution
Go to a professional Lab to
test the battery.
Disconnect the load and
attempt to charge again.
Replace the battery.
Confirm that battery is 12
V.
Disconnect the load and
attempt to charge again.
Ensure adequate
ventilation. The charger
will resume charging after
cooling.
Select a higher charge
rate.
Have the battery checked.
Disconnect the load.
Select a higher charging
rate.
Disconnect clamps and
ensure proper connection.