Just to emphasize a point and clarify something for the new owners. Each converter has his own way of dealing with aux. air and leveling. On our Liberty if the compressor runs a lot I have a leak. This may or may not be the case (it was on my first coach), unlike Tom's if my aux air drops below a certain value my air bags may dump air and the coach will no longer be level.
The point is you need to learn and understand your coach. Look for articles on this site and the prevost-stuff site. Ask questions, but be specific as to the year and converter.