Question

The 240v system is working but it is not charging the battery. I have charged the battery in my garage so that is fine. Can you help please?

Answer

You will need to check that your charger in the caravan is working. Disconnect the terminals from the battery and connect the 240 volts to the caravan. You may have a 'charger' switch which must be turned on. Check the voltage across the terminals. This should be in excess of 13 volts, normally 13.8 volts. If this is not the case then, unless you have a broken wire or connector, you have a faulty charger and will need to be replaced or repaired. Normally cheaper to replace.