I recently installed the Multiplus, MPPT 100/30, Digital multi control panel, battery monitor and solar panels to boost my existing solar capacity.
It all works well until I connect to shore power. It then trips the shore power RCD if I turn on the charger. If I leave the boats 240v charger circuit breaker off I can run everything else while connected to shore power. As soon as I switch the charger circuit breaker on, 15 seconds later the shorepower RCD trips. Advice appreciated.
Further, If I disconnect the 230v AC output terminals from the multiplus, the shore power RCD does not trip and the batteries charge. Is this a MEN problem @Guy Stewart (Victron Energy Staff)? I've triple checked the wiring is as per the Victron manuals.