Battery charging issue

You will need find a way to have rig plugged into shore power when parked undriven for over a week. Alternately, you will need to use a smart trickle charger ( "Battery Minder" ) connected to a 110volt supply and the house battery(s) Check all connections from converter to battery and any circuit breakers or fuses. Connections at the converter require an allen wrench tighten them. Check connections at the house battery for corrosion and clean if needed. Use a digital multi-meter to check if converter is charging the house batteries when plugged into shore power. House batteries are "dead" at 12 volts, fully charged at 13.6 volts. Battery life is seriously shortened if allowed to go dead an stay that way.