•
11
•
PROBLEM
POSSIBLE CAUSE
SOLUTION
The
Bad Battery
LED is lit.
The battery voltage is still below
10V after 2 hours of charging.
(or)
In maintain mode, the output
current is more than 1.5A for 12
hours.
Desulfation was unsuccessful.
The battery voltage drops to
below 12.2V 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
battery 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.
Short or no start cycle
when cranking engine.
Drawing more than the Engine
Start Rate.
Failure to wait 3 minutes (180
seconds) between cranks.
Clamps are not making a good
connection.
AC cord and/or extension cord
is loose.
No power at receptacle.
The charger may be
overheated.
Battery may be severely
discharged.
Crank time varies with the amount
of current drawn. If cranking draws
more than the Engine Start Rate,
crank time may be less than 3
seconds.
Wait 3 minutes of rest time before
the next crank, to allow the battery
and charger to cool down.
Check for poor connection at
battery and frame.
Check power cord and extension
cord for loose fitting plug.
Check for open fuse or circuit
breaker supplying AC outlet.
The thermal protector may have
tripped and needs a little longer to
close. Make sure the charger vents
are not blocked. Wait and try again.
On a severely discharged battery,
use the
20A Boost setting
for few minutes, to help assist in
cranking.
14. BEFORE RETURNING FOR REPAIRS
If these solutions do not eliminate the problem,
or for more information about troubleshooting,
contact customer service for assistance:
www.batterychargers.com
or call 1-800-621-5485
Monday-Friday 7:00
am
to 5:00
pm
CST
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.
