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Idiomas disponibles
Idiomas disponibles
PROBLEM
Charger makes a
loud buzz or hum.
Short or no start
cycle when cranking
engine.
The measured
current is much
lower than what was
selected.
15. BEFORE RETURNING FOR REPAIRS
If these solutions do not eliminate the problem, or for more information
about troubleshooting, contact customer service for assistance:
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.
All manuals and user guides at all-guides.com
POSSIBLE CAUSE
Transformer laminations vibrate
(buzz).
Shorted diode assembly or output
rectifier assembly (hum).
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.
The charger reached the
maximum voltage and is
reducing the current.
services@schumacherelectric.com
www.batterychargers.com
or call 1-800-621-5485
Monday-Friday 7:00
No problem; this is a normal
condition.
Have charger checked by a qualified
technician.
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.
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
reset. Make sure the charger vents
are not blocked. Wait and try again.
On a severely discharged battery,
charge for 10 to 15 minutes at
the lowest rate, to help assist in
cranking.
No problem; this is a normal
condition.
to 5:00
CST
am
pm
• 11 •
REASON/SOLUTION
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