[77newell]

Jimmy: I'm new to the HWH system, but let me share what I think I know. First, let me state that I assume you hear air letting out of the left but NOT (instead of now) the right. There are two major parts to the system; the control system and the "6-packs" air control solenoid valves.

First thing I would think of is to confirm that the "6-packs" are responding to input signals by doing a cycle of manual adjustments; I would manually raise and lower the front, left side, right side and rear of the coach. If all these operations happen as demanded you know the control panel, wiring in and out of the control box, and solenoid valves are operating as designed. If this is not the case then at least you know what parts of that part of the system is not doing their job. I'm guessing you will find this test goes off without a hitch.

The other part of system is the level sensing device and wiring. Given the pattern of automatic leveling (that is anything but) I'm guessing there is a problem with the level sensor sending a wrong signal. I believe the level sensor is a set of four mercury switches that are selectively turned on when the mercury gravitates to the low side and thereby signaling the control box to trigger the solenoid controlling the high side suspension to release air and bring the coach into level. Given that you always end up tilting left (not a political statement here just a physical observation) I suspect the mercury switch sensing right side low is stuck in the on position somehow, or at least the control box is getting a right side low signal somehow. One way to test this is to manually level the coach as best you can and then check for output voltage from the sensor, as I understand the system (remember I'm still early on in my learning) there should be no voltage signals from the sensor. I've been assuming in all this that this problem came on suddenly after an extended period of the system working correctly. If that is not the case then you may want to check the "levelocity" of the sensor.

I hope all this helps and I certainly invite others to chime in where I've gone off level so to speak.