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11
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PROBLEM
POSSIBLE CAUSE
REASON/SOLUTION
Charger makes a loud buzz
or hum.
Transformer laminations
vibrate (buzz).
Shorted Diode Assembly or
Output Rectifier Assembly
(hum).
No problem, this is a normal
condition.
Have charger checked by a
qualified technician.
Charger will not turn on
when properly connected.
AC outlet is dead.
Poor electrical connection.
Check for open fuse or
circuit breaker supplying AC
outlet.
Check power cord and
extension cord for loose
fitting plug.
The battery is connected
and the charger is on, but is
not charging.
Clips are not making a good
connection.
Check for poor connection
at battery and frame. Make
sure connecting points are
clean. Rock clips back and
forth for a better connection.
BEFORE RETURNING FOR REPAIRS
17.
When a charging problem arises, make certain that the battery is capable
17.1
of accepting a normal charge. Double check all connections, the AC outlet
for a full 120-volts, the charger clips for correct polarity and the quality of
the connections from the cables to the clips and from the clips to the battery
system. The clips must be clean.
When a battery is very cold, partially charged or sulfated, it will not draw
17.2
the full rated amperes from the charger. It is both dangerous and damaging
to a battery to force higher amperage into it than it can effectively use in
recharging.
When an UNKNOWN OPERATING PROBLEM arises, please read the
17.3
complete manual and call the customer service number for information that will
usually eliminate the need for return.
If the above solutions do not eliminate the problem or for information about troubleshooting,
call toll-free from anywhere in the U.S.A.
1-800-621-5485
7:00 am to 5:00 pm Central Time Monday through Friday
LIMITED WARRANTY
18.
WARRANTY NOT VALID IN MEXICO.
SCHUMACHER ELECTRIC CORPORATION, 801 BUSINESS CENTER
DRIVE, MOUNT PROSPECT, IL 60056-2179, MAKES THIS LIMITED
WARRANTY TO THE ORIGINAL RETAIL PURCHASER OF THIS PRODUCT.
THIS LIMITED WARRANTY IS NOT TRANSFERABLE OR ASSIGNABLE.
Schumacher Electric Corporation (the “Manufacturer”) warrants this battery
charger for 2 years from the date of purchase at retail against defective
material or workmanship that may occur under normal use and care. If your
unit is not free from defective material or workmanship, Manufacturer’s
obligation under this warranty is solely to repair or replace your product with a
new or reconditioned unit at the option of the Manufacturer. It is the obligation
of the purchaser to forward the unit, along with mailing charges prepaid
to the Manufacturer or its authorized representatives in order for repair or
replacement to occur.
