Troubleshooting
Performance problems often result from littlethings that you can fix yourself. Please read through this table for a
possible solution if a problem occurs.
PROBLEM POSSIBLE CAUSE SOLUTION/REASONS
No ammeter reading.
Circuit breaker in
charger cycles on
and off with a clicking
sound,
Ammeter reads less
than selected charge
rate when charging.
Charger makes a loud
buzz or hum.
Short start cycle when
when cranking engine.
Clamps not making good
connection.
2-amp charge rate.
No AC power reaching
charger.
Shorted battery clamps.
Shorted battery.
Charger leads reversed
on battery.
Extension cord too long
or gauge too small.
Battery has weak cell
or sulfated plate.
Battery is partially
charged.
Transformer laminations
vibrate (buzz).
Shorted diode (hum).
Drawing more than 50
amps for a period equal to
or less than 10 seconds.
Failure to wait for 4
minutes (240 seconds)
between cranks.
Check for poor connection at battery. Make sure clamps
and posts are clean.
Ammeter needle will indicate little activity at the 2-amp
charge rate.
Check AC outlet and extension cords for loose fitting plug.
Check for open fuse or circuit breaker supplying AC outlet.
Separate the clamps.
Circuit breaker cycles when current draw is too high.
Check for worn cables and replace if needed.
Have a Sears Service Center test the battery.
Correct connections.
Use shorter or heavier extension cord.
Sulfated battery will eventually take a normal charge if left
connected. If the battery will not take a charge, have it
tested by a Sears Service Center.
Continue charging battery.
Continue charging. Buzz is not abnormal.
Have charger tested by a Sears Service Center.
Crank time varies with the amount of current drawn from
the charger. If cranking draws more than 50 amps, crank
time may be less than 10 seconds.
Wait 4 minutes before next crank.
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For information about troubleshooting, call toll-free from anywhere in the
U.S.A. 7 am to 4:30 pm CT Monday through Friday.
1-800-SEARS-64 (1-800-732-7764).
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