Troubleshooting - Schumacher Electric SE-175 Owner's Manual

14. TROUBLESHOOTING

PROBLEM
Charger will not turn
on when properly
connected.
No reading on the
ammeter.
Ammeter reading
stays high.
Ammeter reads less
than selected charge
rate when charging a
discharged battery.
The charger is
making an audible
clicking sound.
POSSIBLE CAUSE
AC outlet is dead.
Poor electrical connection.
Charger is not plugged in.
No power at the receptacle.
Clamps are not making a good
connection to the battery.
Connections are reversed.
Battery is defective
(will not accept a charge).
2 amp charge rate is being
used.
Battery is severely discharged.
Wrong battery voltage.
Extension cord is too long or
wire gauge is too small.
Weak cell or sulfated plate in
battery.
Battery is only partially
discharged.
Circuit breaker is cycling.
Battery is defective.
Shorted battery cables
or clamps.
Severely discharged battery, but
otherwise it is a good battery.
Reversed connections at battery.
Check for open fuse or circuit
breaker supplying AC outlet.
Check power cord and extension
cord for loose fitting plug.
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 clamps back
and forth for a better connection.
Unplug the charger and reverse
the clamps.
Have the battery checked.
Ammeter may show no activity at
the 2A charge rate.
Continue charging battery for two
more hours. If problem continues,
have the battery checked.
Verify you are trying to charge a
12 Volt battery.
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.
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
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.
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REASON/SOLUTION