Schumacher Speed Charge SC-200A Owner's Manual page 16

PROBLEM
The charger
is making
an audible
clicking sound.
(continued)
Charger makes
a loud buzz or
hum.
CHECK
BATTERY (red)
LED is on.
CHECK
BATTERY (red)
LED is blinking.
POSSiBLE CAUSE
Reverse connections at
battery.
Transformer
laminations vibrate
(buzz).
Clips are not making a
good connection to the
battery.
Connections are
reversed.
Battery is defective (will
not accept a charge).
Indicates the charger is
in abort mode.
• 16 •
REASON/SOLUTiON
Shut the charger off
and correct the lead
connections.
No problem; this is a
normal condition.
Check for poor
connection to battery
and frame. Make sure
connection points are
clean. Rock clips back
and forth for a better
connection.
Unplug the charger and
reverse the clips.
Have battery checked.
See "Aborted Charge"
in the OPERATING
INSTRUCTIONS
Section.