I have a Victron Multiplus 12 / 500 / 20 in my campervan that suddenly acts weird.
When I connect the external cable to the CEE port it will charge my batteries but it will not pass through 220V to two sockets I have.
When the battery is full and I unplug the cable and I switch on 220V (to be inverted from the battery) there is no power from the sockets. The USB and 12V ports do have power.
The switch is set to ON. What might be wrong.