Schumacher Manual Cargador de Batera Manual SE-2254 - Manual (Page 13)

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PROBLEM POSSIBLE CAUSE REASON/SOLUTION
Charger makes a loud
buzz or hum.
Transformer laminations vibrate
(buzz).
Shorted Diode Assembly or
Output Rectifier Assembly (hum).
No problem; this is a normal
condition.
Have charger checked by a
qualified technician.
Short or no start
cycle when cranking
engine.
Drawing more than the engine
start rate.
Failure to wait 3 minutes
(180 seconds) between cranks.
Clips 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.
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 A.C. 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 in the
manual charge rate to help assist
in cranking.
Charger will not turn
on when properly
connected.
A.C. outlet is dead.
Poor electrical connection.
Check for open fuse or circuit
breaker supplying A.C. outlet.
Check power cord and extension
cord for loose fitting plug.
The battery is
connected and the
charger is on, but is
not charging.
Clips are not making a good
connection.
Check for poor connection at
battery and frame. Make sure
connecting points are clean.
Rock clips back and forth for a
better connection.
The measured current
is much lower than
what was selected.
The charger reached the
maximum voltage and is reducing
the current.
No problem; this is a normal
condition.
16. BEFORE RETURNING FOR REPAIRS
16.1 When a charging problem arises, make certain that the battery is capable of accepting a
normal charge. Use a good battery to double check all connections, the A.C. outlet for a
full 120-volts, the charger clips for correct polarity and the quality of the connections from
the cables to the clips and from the clips to the battery system. The clips must be clean.
16.2 When a battery is very cold, partially charged or sulfated, it will not draw the full rated
amperes from the charger. It is both dangerous and damaging to a battery to force
higher amperage into it than it can effectively use in recharging.
16.3 When an UNKNOWN OPERATING PROBLEM arises, please read the complete manual
and call the customer service number for information. This will usually eliminate the
need for return.