i will try to help on some of this, i also am new to owning a Toy since May of this year. Moosepucky can really give more and better/ professional info. You were running off of 12 volts i assume. Plug up your shore power cord and check it first. Mine has an isolator and coach battery and converter. You also should have a seperate eng' battery. I know it has a breaker box, you may can go under some of the files and data down load what applies. Others may have manuals to help you. My 79 came with none, i ask?'s and use trail and error method.