PROBLEM

POSSIBLE CAUSE

SOLUTION

The CHARGED

The battery may be

If the battery is in a vehicle,

(green) light turns on

fully charged or recently

turn the headlights on for a

a few minutes or less

charged, leaving the bat-

few minutes to reduce the

after connecting the

tery voltage high enough

battery voltage and try charg-

battery.

to appear to be fully

ing again. Also try a lower

 

charged.

CHARGE RATE selection.

 

The battery may be faulty

A sulfated battery will eventu-

 

(sulfated).

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

The charger reached the

No problem; this is a normal

is much lower than

maximum voltage and is

condition.

what was selected.

reducing the current.

 

The charger is mak-

Circuit breaker is cycling.

The settings may be wrong.

ing an audible clicking

 

Check the charger settings.

sound.

Battery is defective.

Have the battery checked.

 

 

Shorted battery cables or

Circuit breaker cycles when

 

clamps.

current draw is too high.

 

 

Check for shorted cables or

 

 

clamps and replace if neces-

 

 

sary.

 

Severely discharged

The battery may not want to

 

battery, but otherwise in

accept a charge due to a run-

 

good condition.

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.

 

Reverse connections at

Shut the charger off and cor-

 

battery.

rect the lead connections.

Charger will not turn

AC outlet is dead.

Check for open fuse or circuit

on when properly

 

breaker supplying AC outlet.

connected.

Poor electrical connec-

Check power cord and exten-

 

 

tion.

sion cord for loose fitting plug.

The battery is

Clamps are not making a

Check for poor connection at

connected and the

good connection.

battery and frame. Make sure

charger is on, but is

 

connecting points are clean.

not charging.

 

Rock clamps back and forth

 

 

for a better connection.

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Schumacher MODELS SC-600A, SC-1000A owner manual Problem Possible Cause Solution