Schumacher SE-1-12S Owner's Manual page 14

PROBLEM
POWER ON (green)
LED is not lit.
Charger will not turn
on when properly
connected.
The battery is
connected and the
charger is on, but is
not charging.
POSSiBLE CAUSE
AC outlet is dead.
Poor electrical
connection.
Charger is not
plugged in.
Ring terminals are
not making a good
connection to the
battery.
Connections are
reversed.
Battery is defective
(will not accept a
charge).
Severely discharged
battery, but otherwise
it is a good battery.
• 13 •
REASON/SOLUTiON
Check for open fuse
or circuit breaker
supplying AC outlet.
Check power cord
and extension cord
for loose fitting plug.
Plug the charger into
an AC outlet.
Check for poor
connection to battery
and frame. Make sure
connection points are
clean.
Unplug the charger
and reverse the
battery connections.
Have battery
checked.
The battery must
measure at least 1 volt
to start the charging
process. If it is under 1
volt, you must charge
it using a separate
charger to get the
voltage up to at least
1 volt before you can
use the charger.