How does the inverter know it's in an RV.
Standard restart procedure (Generic)
Remove all power, Unplug from 120vac and disconnect batteries (Disconnect battery negative leades first).
Have a cup of coffee (Brewed before doing this)
Restore power (Reverse order, SHORT than 12 volt)
Who knows. might work. IF that is it's the inverter that's the problem, Which I doubt.
Home is where I park it!