Multiplus II 120V 3K inservice about 5 months. 120 V . neutral wire going into inverter failed. Fail point was at a terminal block outside of the inverter terminals.Don’t know if it broke, burned or what. Result is loss of comms. Seems to function otherwise. My question is is there a communications card internal to the inverter or do I have a $1k paperweight?
I would like to think there is some modularity to the system but I have been told there is likely none.
Ask your supplier if it can be repaired.