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16. TROUBLESHOOTING AND ERROR CODES
Error Codes
CODE
DESCRIPTION
REASON/SOLUTION
F01
The battery voltage is still under
10V (for a 12V battery) or 5V
(for a 6V battery) after 2 hours
of charging.
The battery could be bad. Have it checked or
replaced.
F02
The charger cannot desulfate
the battery.
The battery could not be desulfated; have it
checked or replaced.
F03
The battery was unable to reach
the “full charge” voltage.
Have the battery checked or replaced.
F04
The connections to the battery
are reversed or are made
incorrectly.
The battery is connected backwards. Or for multiple
batteries being charged, the connections are not
proper. Unplug the charger and reverse or correct
the connections to the battery(s).
F05
The charger was unable to
keep the battery fully charged in
maintain mode.
The battery won’t hold a charge. May be caused
by a drain on the battery or the battery could be
bad. Make sure there are no loads on the battery. If
there are remove them. If there are none, have the
battery checked or replaced.
F06
The charger detected that the
battery may be getting too hot
(thermal runaway).
The charger automatically shuts the current off
if it detects the battery may be getting too hot.
Have the battery checked or replaced.
F07
The charger shut off because
its internal temperature exceeds
limit.
Make sure the charger does not have the side
ventilation holes blocked. Move the charger out of
the sun and into the shade.
F08
The battery voltage dropped too
low during the maintain mode.
May be caused by a drain on the battery or the
battery could be bad. Make sure there are no loads
on the battery. If there are remove them. If there are
none, have the battery checked or replaced.
F09
The Lithium Ion (LiFePO
4
) battery
continues to read 0 V and is
therefore unable to be charged.
The Lithium Ion (LiFePO
4
) battery could be bad.
Have it checked or replaced.
F10
The voltage on the Lithium Ion
(LiFePO
4
) battery exceeds the
safe limit.
The charger automatically shuts off if it senses that
the Lithium Ion (LiFePO
4
) battery voltage exceeds
the safe limit. The battery could be bad. Have it
checked or replaced.
If you get an error code, check the connections and settings and/or replace the battery.
Troubleshooting
PROBLEM
POSSIBLE CAUSE
SOLUTION
The battery is connected and
the charger is on, but is not
charging.
The charger is not in charger
mode.
Press START/STOP button
for the battery that is
connected to the charger.
The indicator lights are lit
in an erratic manner, not
explained in the
Operating
Instructions
section.
A button may have been
pressed when the charger
was plugged in.
Make sure nothing is
touching the control panel,
then unplug the unit and plug
it in again.
The display shows,“BAD
BAT” and an error code.
The charger was unable to
complete the charging of the
battery and is in abort mode.
See
Error Codes
for more
information.
Press the corresponding
START/STOP button, to turn
off and reset the charger.
Summary of Contents for DSR PROSERIES DSR125
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