I have a 2011 Rockwood 5th wheel 8281SS. I was going through my pre camping checklist and when I checked the gas I found this problem. With both tanks open I get about 5 seconds of gas pressure then it drops to zero. I shut down both tanks, remove the hoses, reconnect both hoses, open tanks, same thing, couple seconds of gas pressure then nothing. The indicator on the diverter valve shows green then changes to red when pressure drops. This is our second trip with this camper. The gas worked properly the frist trip. It was in July. I did leave both valves open from then until now. Both tanks are still full as well. When I remove the hoses from the diverter/reg. valve and open a tank, nothing comes out of the hose. When I take a tank to my bar-b-q grill it operates the grill as intended. I am stumped. The urgent nature of this request is because we are leaving today and the nights will be dipping into to 40's this weekend. Any help is appreciated. Thank you!