MrWizard wrote:
battery disconnect, turns off the house side from batteries
it does NOT separate house and chassis batteries
that is done by the charge 'Isolater' , which is either a diode base device (big finned heat sink with heavy wires on it) or a relay controlled by the ignition switch
Thanks, I know about the diode/ relay isolator as I replaced the one under the hood of my former "B".
Now that disconnect explains why my batteries ran down as I had the switch off thinking it separated the coach from house batteries.