Any time you turn on propane in a new system or after changing tanks, the pressure in the lines in the RV will be zero. Turning on the tank quickly allows a rush of propane into the lines until the pressure builds. The free flow protector built into the tanks thinks this is a free flow situation and shuts off the propane. Using the procedure above will reset the free flow preventer.
2015 Freedom Express 248RBS
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2 100W solar panels