I have a 2012 Forest River Georgetown 280 A-class motor home. The water heater is a quick recovery lp gas only 6 gallon. I can only get warm water. It lights fine and seems to run the complete cycle but I still just get warm water. I had it winterized and now since I have it ready to go for the season it will not put out hot water. Any ideas? There is no air in the tank. I made sure I got all the air out before lighting the first time. :'(