I never fuel up with our refrigerator operating at all - I only travel with the refrigerator operating on propane.
Our refrigerator needs 12 volts to operate it's ignitor in propane mode. The main coach battery bank's connect/disconnect switch is right by the entrance door (where is should be, IMHO). At a gas station before refueling I just open the coach door and switch OFF this switch so that the refrigerator cannot ignite it's gas flame ... an easy way to ensure refueling safety when one has been traveling with the refrigerator running on propane.
