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7
LED warning indicators
LED
Status
Descriptions
Flash
Battery weak or sulphated
Flash
Charging timer timed out
ON
Reverse polarity connection, output short
circuit or battery cell shorted
Fast flash
Charger overheating
Troubleshooting
Types of
problems
Indication
Possible
causes
Suggested
solution
Charger does
not work.
No indicator
lights on.
No mains power.
Check mains
connections and
make sure power is
switched ON.
Charger has
no DC output.
LED fault
indicator is ON.
Output is short
circuited.
Reverse polarity
connection to
battery.
Check DC
connection between
charger and battery
and make sure
they are not short
circuiting.
Check that the
crocodile clips have
not fallen off the
battery.
Check that the
crocodile clips
/ eyelets are
connected to the
correct polarity.