Hello all. New Member. Have had a used 1993 330 mariner for a year now. Been dealing with an issue with power on the outlet side of my system. I have 2 30 amp inlets, one for ac and one for the receptacles and appliances. I apparently have some sort of automatic transfer switch/solenoid that takes it from shore to generator automatically. I've done some troubleshooting and process of elimination, but I'm not an electrician, I'm trying to knock out the obvious stuff. The power inlets feed into a carver junction box behind the wall that appears to meet up with the generator power input as well as the interior boat wiring to the AC and the other circuit for receptacles, appliances etc. I have power all day on both systems when on generator, however when on shore power I only have power on the air conditioning side. So far I've replaced the shore power inlet, bypassed (temporarily) the 30 amp inlet breaker for that leg, and still have no power at all when on shore power. So I'm leaning towards something either in that junction box, or behind the electrical panel where all my ac and dc switches are. Any tips? Thanks all!