Schumacher Automobile Battery Charger SE-4022 User Manual

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• 16 •
PROBLEM POSSIBLE CAUSE REASON/SOLUTION
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.
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sufciently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.
Charger makes a loud
buzz or hum.
Transformer laminations
vibrate (buzz).
Shorted Diode Assembly or
OutputRectierAssembly
(hum).
No problem, this is a normal
condition.
Have charger checked by a
qualiedtechnician.

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