www.aeg-automotive.com
24
tROUBLEShOOtING
Error/Problem
Possible cause
Correction
Display shows (1) "---".
No battery connected.
Battery voltage below 0.5 V.
Connect battery (see “Connecting the
Device"). Unable to charge battery.
Display (1) shows "Er1".
Connected battery incompatible.
Only connected compatible batteries (see
“Intended Use").
Display shows (1) "Er2".
Connected battery defective.
Dispose of battery in an environmentally-
friendly manner.
Display (1) shows "Er3".
the battery was not fully charged within
24 hours.
• Verify the charging rate is set correctly.
• Battery defective. Dispose of battery in
an environmentally-friendly manner.
“Error” LED (9) lit
Battery incorrectly/not connected
Unplug charger and check the connections.
Incorrect battery voltage (12/24 V) selected
Unplug charger and wait for the LEDs to
go out. Reconnect the charger and select
the correct battery voltage.
Battery cannot be charged
No power supply, charger not plugged in.
Verify the charger is connected to a 230 V
mains socket. Battery may be defective.
Long charging time
Only a very low charging current is used
in very low temperatures (below 0°C).
This will extend the charging time. As the
battery warms up, the charging current is
adjusted accordingly.
Charge battery in normal conditions.
Explosion hazard!
Never charge frozen batteries.
Battery capacity too high for the charger
being used.
Use a suitable charger.
Battery voltage too low
Battery wasn’t charged long enough.
Ensure the battery is charged long enough.
