I have a victron multiplus 48/5000/70-100 running on Pylon US5000 batteires x 2. We have updated firmware and installed the batteries as per the Victron manual making sure to use the ocrrect bus cables etc.
Our issue is the batteries where charging but now the system has gone into fault mode and displaying GX error #48 DVCC fault.
we have a cerbo GX on site and all was running well then with the extra sun the other day its sent the system into melt down mode.
We also have an external generator and second inverter connected to the system.
Any help is greatly appreciated.