Electrical problem

[RM Bucky 2023]

I just bought a 2009 Heartland Sundance XLT 287RL. The batteries are being drained over time. I suspect I have a short (indicated by a small between the positive cable and its post), Or I have missed turning something off in the RV although I have turned off all the master switches. I would like to have an appropriate wiring diagram.

 

[cookie]

You mentioned "over time", how much time is that?
There is some parasitic battery usage going on all the time such as the lP detector.
The only sure way to prevent that is to disconnect the neutral battery cable during storage.
How old is your battery or batteries?

Peace
Dave