and is lit (flashing rapidly) simultaneously and there is a ticking sound
Explanation 1: Bad connection.
When I start charging, the green diode lights steadily and the orange diode flashes quickly. What does this mean?
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 very poor condition.
This can be due to several reasons:
1) Poor contact. Twist the connectors a little. Check that CONNECT (or the white plastic contact on the charge cable) is fully home. Also check that contact with the battery is good and that the poles are clean.
2) Sulphated battery is a likely explanation. CTEK chargers have a unique feature for dealing with this. An insulating layer of lead sulphate has formed internally in sulphated batteries. The layer is not fully continuous, as it is still possible to measure a voltage across the battery. The charger, in this situation, pulses out a little energy until the battery starts to receive charging. Batteries which 'do not receive charging' can often be woken in this way. Let the charger charge for an hour. If the charger still flashes, then the battery is probably dead and must be replaced. If the yellow or green lamps light, then you have managed to wake the battery and will probably function. But it is at the end of its life. Chargers which charge using 5A or more trigger alarms (the error lamp lights) if desulphating has continued for more than four hours. This is also to remind you that the remaining battery life is very short. The sulphate crystals are large and no charger in the world can break them down.
3) Fault in battery cell. If a battery starts charging normally as indicated by the orange lamp being lit but which then begins to flash, then this is due to an interruption somewhere. The easiest cause of this is where the connection has fallen off. But it can also be due to an interruption inside the battery. Set the charger in OFF/STANDBY mode and then back to charging. If it is an interruption, then charging does not start.
switches to after the charge has been stopped
Explanation: When the charger restarts the battery voltage is monitored. If the battery voltage is above 6,5V, the charging will not commence. When the battery is between 6,5V and 7,2V it is considered as fully charged. The charging will automatically start again when the battery voltage drops below 6,5V.
The error LED is lit
Explanation: Reverse polarity.
No LED is lit when the charger is connected only to the power outlet
Test: Make sure that the + cable/clamp is connected to the + terminal and the – cable/clamp is connected to the – terminal.
Explanation: The charger has to be connected to battery for the LED’s to light up.
No LED is lit when the charger is connected to both the power outlet and the battery
Explanation: The battery voltage could be under 4V.
The charger does not switch from into maintenance charging
Test: Test against another battery that is fresh.
Explanation 1: Larger loads are connected to the battery at the same time.
No LED is lit when the charger is connected only to the battery
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 is completed. If the voltage is under 7V the battery is probably faulty.
Test: Try the charger on another fresh battery.
Explanation: The plug has to be connected for the LED to be lit.