Troubleshooting - Schumacher ProSeries PSC-15A-OB Owner's Manual

13.

TROUBLESHOOTING

PROBLEM
The charger is making an
audible clicking sound.
This battery charger is
equipped with a self-resetting
circuit breaker. This device
protects the charger from tem-
porary overloads. In the event
of an overload, the breaker
will trip open and after a short
cooling off period will reset
automatically. This process
is known as cycling and can
be recognized by an audible
clicking sound.
Charger makes a loud buzz
or hum.
POWER ON (green) LED is
not lit. Charger will not turn on
when properly connected.
POSSIBLE CAUSE
Battery is defective.
Shorted battery cables or ring
terminals.
Severely discharged battery,
but otherwise it is a good
battery.
Reverse connections at
battery.
Transformer laminations
vibrate (buzz).
Shorted Diode Assembly or
Output Rectifier Assembly
(hum).
No power at the receptacle.
Charger is not plugged in.
Poor electrical connection.
9
SOLUTION
Have the battery checked.
Circuit breaker cycles when
current draw is too high. Check
for shorted cables or ring termi-
nals 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.
No problem, this is a normal
condition.
Have charger checked by a
qualified technician.
Check for open fuse or circuit
breaker supplying AC outlet.
Plug the charger into an AC
outlet.
Check power cord and exten-
sion cord for loose fitting plug.