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13. TROUBLESHOOTING
PROBLEM
POSSIBLE CAUSE
SOLUTION
Charger will not turn on
when properly connected.
AC outlet is dead.
Poor electrical connection.
Check for open fuse or circuit breaker
supplying AC outlet.
Check power cord and extension cord for
loose fitting plug.
Engine start does
not work.
Drawing more than the Engine
Start rate.
Failure to wait 3 minutes (180
seconds) between cranks.
The charger may be overheated.
Battery may be severely
discharged.
Crank time varies with the amount of current
drawn. If cranking draws more than the
Engine Start rate, crank time may be less
than 5 seconds.
When the Engine Start LED blinks, wait 3
minutes of rest time before the next crank.
The thermal protector may have tripped and
needs a little longer to reset. Make sure the
charger vents are not blocked. Wait and try
again.
On a severely discharged battery, use the
Boost rate for 10 to 15 minutes, to help
assist in cranking.
The red Clamps
Reversed/Bad Battery
LED is lit.
The battery voltage is still under
10V (for a 12V battery) or 5V
(for a 6V battery) after 2 hours of
charging.
The charger cannot desulfate
the battery.
The battery was unable to reach
the “full charge” voltage.
The charger was unable to
keep the battery fully charged in
maintain mode.
The charger detected that the
battery may be getting too hot
(thermal runaway).
The battery voltage dropped too
low during the maintain mode.
The battery could be bad.
Have it checked or replaced.
The battery could not be desulfated;
have it checked or replaced.
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.
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.
The charger automatically shuts the current
off if it detects the battery may be getting too
hot. Have the battery checked or replaced.
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.