No house power after returning from trip.
2003 Itaska Spirit. No DC power to the house. Batteries at 13.7v. I checked the AUX BATT switch, and it is passing DC when actuated, but no relay click as usual. I just returned from a camping trip and went to check the test panel to make sure the tanks were empty, but there wasn't any DC power to the house. If I turn the ignition switch to ON, everything works fine including the familiar click of the AUX relay. As soon as I turn the ignition off, the house goes dead. I know electronics, but without a schematic I'm lost. All the fuses and resetable breakers appear okay.
Any ideas would be appreciated!