I have a victron multiplus 3000/120. The problem i have is when i connect to the 16amp shore power. No matter what i set the amps to if if the victron set to on position the rcd on the shoreline bollard trips. If i switch to charger only it accepts the shoreline and then cycles through bulk,absorption then float. We liveaboard so most of the time we are on shorepower. The problem arises if there is a power cut (which happened today) we then have to manually switch to inverter. The bollard has been checked and is ok. Any ideas what is causing shoreline to trip?.