Lights only work on gen or shore power?
I have a 1981 Winnebago that I bought a few years ago. I have it to the point that everything works on it (bit of a challenge there), we have taken it on 3 trips from Northern BC to south BC in the last couple of years,
Now a new problem showed it's face.
I went to winterize it last week, and when I went out all the batteries were dead. Boosted it and it started right up - but now the interior lights and pump only work with the gen-set and shore power. They will not function on battery.
I replaced all the fuses under the dash (2 blown), and checked the breakers under the sink. Did not fix the problem.
On top of that, there is now a drain on the batteries - they will drain within a day.
I'm having a hard time diagnosing this problem, been trying for the last week - relays??
Any help that anyone can give me would be appreciated.
Thank you in advance
1981 Winnebago Brave
(New to me)