I posted this link to the Fifth Wheel forum.
What part of the danger do you not understand?
http://www.rvhelpdesk.com/rv-refrigerator/Safety: An RV refrigerator has a small flame outside the RV when in the L.P. mode.
You need to be absolutely certain the refrigerator and any other L.P. operating item is switched off
to extinguish the flame before entering a gasoline or L.P. filling station.
I recommend turning the refrigerator off electrically.
This means switched off at the control panel not at the L.P. tank shut off valve or leak detector.
The leak detector should always remain on, even when filling the L.P. tank.
Anyone filling the L.P. tank will turn the tank shut off valve to the off position
so be sure the refrigerator is switched to off at the control before entering the fill area.
Chris