Schumacher Automatic Battery Charger SC-300A - Manual (Page 11)

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14. TROUBLESHOOTING
PROBLEM POSSIBLE CAUSE REASON/
SOLUTION
Power light will not
turn on.
AC outlet is dead.
Poor electrical
connection.
Check for an open
fuse or circuit breaker
supplying the AC
outlet.
Check the power cord
and extension cord
for a loose fitting plug.
Charger makes a
loud buzz.
Transformer
laminations vibrate.
No problem; this is a
normal condition.
15. BEFORE RETURNING FOR REPAIRS
15.1 When a charging problem arises, make certain that the battery
is capable of accepting a normal charge. Double check all
connections, the AC outlet for a full 120-volts and the quality of
the connections from the connector to the battery system. The
connector must be clean.
15.2 When an UNKNOWN OPERATING PROBLEM arises, please
read the complete manual and call the customer service number
for information. This 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
16. SPECIFICATIONS
Input Voltage .........................................................................120 VAC
Output Current Rating ........................................................12V – 3.0A
Maximum Charge Voltage ............................................... 12V – 15.4V
Maintain Voltage .............................................................. 12V – 13.6V
Size ..................................................................... 2⅝" H x 6" W x 3" D
Weight .......................................................................................2.5 lbs