The charger does not switch from into maintenance charging
Explanation 1: Larger loads are connected to the battery at the same time.
Test: Disconnect the loads from the battery and try to charge again.
Explanation 2: Defective battery.
Test: If possible, measure the voltage on the battery when the charging should be completed. If the voltage is under 14,1V the battery is most likely faulty.
Test: Try the charger on another fresh battery.
The error LED is lit
Explanation: Reverse polarity.
Test: Make sure that the + cable/clamp is connected to the + terminal and the – cable/clamp is connected to the – terminal.
and is lit (flashing rapidly) simultaneously
Explanation 1: Bad connection.
Test: Move the clamps and make sure there is no loose connection in the quick connector, CONNECT.
Explanation 2: The charger is working in the desulphation phase.
Test: Leave the charger to charge for 24h (with some supervision). If the charger does not start charging (one of the LED’s are lit) within 24h the battery is in a very poor condition.
switches to after the charge has been stopped
Explanation: When the charger restarts the battery voltage is monitored. If the battery voltage is above 12,9V, the charging will not commence. When the battery is between 12,9V and 14,4V it is considered as fully charged. The charging will automatically start again when the battery voltage drops below 12,9V.