Airstream 290 airbags
I have a 290 motorhome and the airbags are not inflating. At first, I thought the compressor had quit working, so I filled the tank manually and the motorhome lifted up to normal height. After about 3 months, I guess the air leaked out and the bags deflated. I filled the tank again to 100 lbs but this time they did not inflate. After looking at the schematic, the only thing between the air tank and the airbags are leveling valves, so I'm assuming they are they problem, however, its odd that they would both fail at the same time. Now I can't find the leveling valves, does anyone know where they are located? I would assume below the floor but I can't find them unless they are mounted inside the frame somewhere. Any help is greatly appreciated!!