No gas to cook top

A few years ago I was on a trip up at an elevation of about 5,000'+ when my Dometic 3 way r efrigerator would not provide much, if any, cooling on propane and produced a low burner flame. Contacted a mobile rv repair guy who checked the problem out and said the propane gas regulator needed to be adjusted to a higher level. He reset the pressure regulator to I think 15psi. The refrigerator worked great after that. I was told to reset the regulator to 11.5 psi once I returned to a lower elevation where I lived at about sea level. Did that after I got home and everything worked fine. By the way, I did ask other rv hers if they had any issues and they said they didn't so I guess I was the only one with that issue. Also, my other propane fired appliances worked fine before and after the adjustment of the regulator.