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12. MAINTENANCE AND CARE
A minimal amount of care can keep your
battery charger working properly for years.
• Clean the clamps each time you are
nished charging. Wipe off any battery
uid that may have come in contact with
the clamps to prevent corrosion.
• Occasionally cleaning the case of the
charger with a soft cloth will keep the
nish shiny and help prevent corrosion.
• Coil the input and output cords neatly
when storing the charger. This will help
prevent accidental damage to the cords
and charger.
• Store the charger unplugged from the AC
power outlet in an upright position.
• Store inside, in a cool, dry place. Do not
store the clamps on the handle, clipped
together, on or around metal, or clipped
to the cables.
13. TROUBLESHOOTING AND ERROR CODES
Error Codes
CODE DESCRIPTION REASON/SOLUTION
F 01
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.
SUL
The charger has detected a
sulfated battery.
The charger will go into desulfation mode. If the
desulfation is not successful after 10 hours, the
charger will go into abort mode.
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.
May be caused by trying to charge a large battery
or bank of batteries on too low of a current setting.
Try again with a higher current setting or have the
battery checked or replaced.
F04
The connections to the battery
are reversed.
The battery is connected backwards. Unplug the
charger and reverse the connections to the battery.
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.
If you get an error code, check the connections and settings and/or replace the battery.
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