[Richard and Rhonda]

I am going to repeat what Tom and Michael told you, but use completely different words.

The pressure of the air in the bags raise or lowers the coach, you already know that. When you are in level mode, all of the six solenoids are closed. When you activate one of the toggle switches, it opens the appropriate solenoid. For example, to raise the right front corner, you toggle up on right front and that solenoid opens to pressurize the right front air bag. Likewise, to let air out of that bag, toggle down, and the down solenoid will open.

When we talk about the travel mode, it gets a little more complicated. In travel mode, both the up and down solenoids open, but those air lines do not go directly to the air bags. They go to the leveling valve. The leveling valve is mechanically attached to the frame and has an arm that is connected in some way to the axle. So, depending on the height of the axle relative to the frame, the leveling valve will automatically let air into or let air out of the air bags to bring it back to the correct height. Threre are three leveling valves. The one in the front controls both the right and left front air bags. There are separate leveling valves for each side of the rear. The reason for this is that by using three leveling points, it's harder to twist the frame. If you have four leveling valves and one gets out of adjustment you can twist the frame, and the first symptom is your windshield pops out.

Ok, so the first thing to do is to determine which valves are which, The fastest way to do this is to have a helper toggle each valve from the cabin. If you take a small screw driver to the valve assemblies, you will find the one that is being opened will become magnetic. Draw yourself a little diagram of which valve is which. I would also take a voltmeter with me to determine that the solenoids were getting a good 12v.

I like Michaels idea of raising the coach up using the leveling mode and then putting it in travel. If you raise it all the way up, higher than normal, then you should hear air hiss as the leveling valves let air out of the system to lower it to the correct height.

I am going to send you my cell in a PM. Call me if you get stuck with your diagnosis.

Do not try to drive the coach until you get the traveling height straightened out. You do not want the coach to sit down on the tires while you are at speed.