Schumacher SC-1000A - Manual (Page 19)

• 16 •
PROBLEM POSSIBLE CAUSE SOLUTION
The CHARGED
(green) light turns on
a few minutes or less
after connecting the
battery.
The battery may be
fully charged or recently
charged, leaving the bat-
tery voltage high enough
to appear to be fully
charged.
The battery may be faulty
(sulfated).
If the battery is in a vehicle,
turn the headlights on for a
few minutes to reduce the
battery voltage and try charg-
ing again. Also try a lower
CHARGE RATE selection.
A sulfated battery will eventu-
ally accept a charge. Continue
charging for a few hours. The
CHARGING (yellow) LED will
blink. If not, have the battery
checked or call customer
service.
The measured current
is much lower than
what was selected.
The charger reached the
maximum voltage and is
reducing the current.
No problem; this is a normal
condition.
The charger is mak-
ing an audible clicking
sound.
Circuit breaker is cycling.
Battery is defective.
Shorted battery cables or
clamps.
Severely discharged
battery, but otherwise in
good condition.
Reverse connections at
battery.
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 neces-
sary.
The battery may not want to
accept a charge due to a run-
down state. Allow charging to
continue until battery has a
chance to recover and take a
charge. If more than 20 min-
utes, stop charging and have
the battery checked.
Shut the charger off and cor-
rect the lead connections.
Charger will not turn
on when properly
connected.
AC outlet is dead.
Poor electrical connec-
tion.
Check for open fuse or circuit
breaker supplying AC outlet.
Check power cord and exten-
sion cord for loose fitting plug.
The battery is
connected and the
charger is on, but is
not charging.
Clamps are not making a
good connection.
Check for poor connection at
battery and frame. Make sure
connecting points are clean.
Rock clamps back and forth
for a better connection.