Schumacher Automatic PSW-70300A - Manual (Page 12)

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TROUBLESHOOTING 16.
PROBLEM POSSIBLE CAUSE REASON/SOLUTION
No reading on the
ammeter.
Charger is not plugged in.
No power at the receptacle.
Clips are not making a good
connection to the battery.
Connections are reversed.
Battery is defective (will not
accept a charge).
4 amp charge rate is being used.
Plug the charger into an AC outlet.
Check for open fuse or circuit
breaker supplying AC outlet.
Check for poor connection to
battery and frame. Make sure
connection points are clean.
Rock clips back and forth for a
better connection.
Unplug the charger and reverse
the clips.
Have battery checked.
Ammeter may show no activity at
the 4A charge rate.
Ammeter reading
stays high.
Battery is severely discharged.
Wrong battery voltage.
Continue charging battery for two
more hours. If problem continues
have the battery checked.
Verify the voltage settings on the
charger are correct.
Ammeter reads less than
selected charge rate when
charging a discharged
battery
Extension cord is too long or wire
gauge is too small.
Weak cell or sulfated plate in
battery.
Battery is only partially
discharged.
Use a shorter or heavier gauge
extension cord.
A sulfated battery will eventually
take a normal charge if left
connected. If the battery will not
take a charge, have it checked.
Continue to charge the battery.
Battery clips do not spark
when touched together.
The charger is equipped with
a safe start feature. In the
automatic modes, it will not
supply current to the battery
clips until a battery is properly
connected. Unlike traditional
chargers, the clips will no spark if
touched together.
No problem; this is a normal
condition.
The charger is making an
audible clicking sound.
Circuit breaker is cycling.
Battery is defective.
Shorted battery cables or clips.
Severely discharged battery, but
otherwise it is a good battery.
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 clips and
replace if necessary.
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 sufficiently to
take a charge. If more than 20
minutes, stop charging and have
the battery checked.
Shut the charger off and correct
the lead connections.