Quick Learner, Need advice (Old school '86 Dolphin)

I cant help on issue #1, but issue #2 sounds like you need to check your breaker or fuse from the generator. It sounds like you blew something inline, if not the actual breaker for the A/C.

Issue #3- yes you should have an converter to change the 120V AC to DC for both coach battery charging as well as running your lights inside. From what I have seen, the coverter will be right next to your AC breakers as that is where you get the power for them. The engine battery should be a separate system.

J