Schumacher SE-4022 - Manual (Page 21)

• 17 •
PROBLEM POSSIBLE CAUSE REASON/SOLUTION
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.
BEFORE RETURNING FOR REPAIRS 16.
When a charging problem arises, make certain that the battery is capable 16.1
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.
When a battery is very cold, partially charged or sulfated, it will not draw
16.2
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.