I have a 2021 Bluebird Vision with the Cummins . The air dryer is not working . The wet tank has water in it . The air dryer doesn't exhaust at all .I have never had a dryer that didn't work at all . I am thinking Governor ? Or the lines going to the governor ? i am going to bring the bus in tomorrow to see what I can find out . so an idea's
Got it fixed . Governor was missing a plug and it was loose . One of the mounting bolts was completely backed out and the other bolt was loose .I think it's is isolated