[Richard]

Chester, Look in the blower bay. You will see two boxes bolted to the floor. One of them has an air line going into it. That is NOT the over ride. If you take the top of of the other one, you should be able to differentiate between the 110 V power wires and the wires going into the coil. The the 110 wires will be terminated at the contacts.

I read your leveling strategy carefully. Here is the fly in the ointment. On my coach, and yours is similar. It really takes about 80 psi just to float the coach on the airbags. If you disconnect the override, I am not sure the aux compressor limited to 90 psi would level the coach.

Since the thomas pump is capable of system pressures higher than the 120 psi that the coach normally sees, I will probably install a regulator downstream of the pump when I get home.