Electrician on board today and changed wiring for secondary charger. Should not effect MultiPlus or digital multi control. Ran the boat back to anchor and when arrived 4 lights in left column of digital multi control and inverter on light flashing. Turned switch to off, no change. Turned Multi Plus off and then on, then turned Multi Plus back to on. Inverter working. But no lights on Multi Plus. Not sure if charger working.