Dual battery setup in caravan working fine until about a week ago. We left the car connected to the caravan and the fridge on battery while we went to the shops which may have had something to do with the problem.
The app now shows solar and battery current at 0.0A, 0wh yield. See below.
Caravan repair place advised we needed two new batteries which we replaced but issue is still occuring and don't know what to do from here.