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FAILURE
CODE
DESCRIPTION CAUSE
F05
The charger was unable
to keep the battery fully
charged in maintain mode.
The battery won’t hold a charge. Could
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 or the battery may have
a shorted cell. Have the battery checked
or replaced.
If you get a failure code, you have to 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 isn’t
charging.
The charger is in tester mode,
not charger mode.
Clamps are not making a
good connection.
Press the BATTERY SIZE
button to activate charging
and select a charge rate.
Check for poor connection at
battery and frame. Make sure
connecting points are clean.
Rock clamps back and forth
for a better connection.
Indicator lights are lit in an
erratic manner, not explained
in this manual.
You might have accidentally
activated a special diagnostic
mode.
Make sure nothing is touching
the control panel, then unplug
the charger and plug it in again.
The DIGITAL DISPLAY
always ashes before
the battery is completely
charged.
The incorrect battery type
may have been selected. This
will happen if the battery did
not reach full charge within
24 hours. May be due to a
very large battery or a bank
of batteries requiring more
power than the charger can
deliver within 24 hours. The
battery may also be faulty.
Reset the charger by
briey unplugging it. Select
the desired charge rate
and battery type again, if
necessary.
The green Charged LED
lights a few minutes after
connecting to the battery.
The battery may be fully
charged or recently charged,
leaving the battery voltage
high enough to appear to be
fully charged.
The incorrect battery type
may have been selected.
If the battery is in a vehicle,
turn the headlights on for
a few minutes to reduce
the battery voltage and try
charging again.
Reset the charger by
briey unplugging it. Select
the desired charge rate
and battery type again, if
necessary.
The charger is making an
audible clicking sound.
Circuit breaker is cycling.
Battery is defective.
Shorted battery cables or
clamps.
The settings may be wrong.
Check the charger settings.
Have the battery checked.
Circuit breaker cycles when
current draw is too high. Check
for shorted cables or clamps
and replace if necessary.