Troubleshooting - Schumacher 10 Amp Instruction Manual

M.
The battery charger is designed to work automatically. However, if a problem does occur, check the following:
PROBLEM
No meter reading.
Charger will not turn on
(when properly connected
to power) in automatic mode only.
Charger will not turn OFF.
Meter needle fluctuates back and
forth from the middle to the left.
Meter needle pulses
(fluctuates) every few
seconds AFTER THREE
HOURS without slowing
down.
Meter needle moves to extreme
right, remains a short time, then
returns to zero, accompanied
by a clicking sound.

TROUBLESHOOTING

POSSIBLE CAUSE
Connections are reversed.
Poor electrical connection.
AC outlet is dead.
Battery is defective (will not
accept charge).
Battery recently charged as result
of driving and is fully charged.
Battery has problem and will
not take full charge, or it is a manual
charger.
Battery has reached Full Charge and
and is not able to maintain above 13.V
Two or more batteries
connected in parallel.
Battery of 200 ampere hours
or larger.
Battery is connected to
a device that draws a small
current (such as an
interior light).
Battery is severely discharged (but
otherwise good).
Battery is defective (will not accept
charge).
Charger is cycling after circuit breaker
overload.
6
SOLUTION
With charger unplugged, reverse clamps and
reconnect. (Rock back and forth to bite in.)
Clean clamps and battery posts and reconnect.
(Rock clamps back and forth to bite in.)
Plug in a lamp or other appliance to check for
voltage.
Have battery checked.
Battery does not need charging.
(Turning on headlights will lower battery
voltage in a few seconds and charger
should then turn on.)
Have battery checked.
Have battery checked.
Do not parallel charge.
Requires more time to charge: continue
charging.
Allow charging to continue until battery has
recovered sufficiently to take a charge.
(Circuit breaker will continue to cycle and
needle will swing side to side until battery has
recovered.)
Have battery checked.
Wait until charger automatically resets itself
(DO NOT RETURN FOR SERVICE).