Schumacher Electric SC1321, Owner'S Manual

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PROBLEM POSSIBLE CAUSE SOLUTION
The LED is lit.
The battery voltage is still below
10V (for a 12V battery) or 5V
(for a 6V battery) after 2 hours
of charging.
(or)
In maintain mode, the output
current is more than 1.5A for 12
hours.
Desulfation was unsuccessful.
Lack of progress is detected and
battery voltage is below 14.2V
(for a 12V battery) or 7.1V (for
a 6V battery).
The battery’s initial voltage is
below 12.2V (for a 12V battery)
or 6.1V (for a 6V battery) and the
total input is less than 1.5 Ah.
The battery voltage drops to
below 12.2V (for a 12V battery)
or 6.1V (for a 6V battery) in
Maintain Mode.
The battery may be defective. Make
sure there are no loads on the battery.
If there are, remove them. If there are
none, have the battery checked or
replaced.
The battery may be defective. Have
it checked or replaced.
The battery may be overheated.
If so, allow the battery to cool. The
battery may be too large or have a
short circuit. Have battery checked
or replaced.
The battery capacity is too low, or the
battery is too old. Have it checked or
replaced.
The battery won’t hold a charge.
May be caused by a drain on the
battery or the battery could be bad.
Make sure there are no loads on the
battery. If there are remove them.
If there are none, have the battery
checked or replaced.
14. BEFORE RETURNING FOR REPAIRS
If these solutions do not eliminate the problem,
or for more information about troubleshooting,
contact customer service for assistance:
services@schumacherelectric.com
www.batterychargers.com
or call 1-800-621-5485
For REPAIR OR RETURN , contact Customer Service at 1-800-621-5485. DO NOT SHIP
UNIT until you receive a RETURN MERCHANDISE AUTHORIZATION (RMA) number
from Customer Service at Schumacher Electric Corporation.
15. SPECIFICATIONS
Input Voltage ..................................................................................120V AC @ 60Hz, 1.5A
Output Voltage .......................................................6V or 12V, with Auto Voltage Detection
Output Current Rating ................................................2A DC @ 6V DC; 6A DC @ 12V DC