[360]

Let me try again. That switch is ONLY activated when the HWH leveling system calls for air. Try this, put the coach in level mode and activate one of the raise switches. The compressor should come on.

Now, in normal operation, that switch does not come into play. In normal operation, the well pump switch controls the on/off of the compressor.

As far as checking AC power, if you put one lead on the HOT (black) wire and the other on either the NEUTRAL (white) OR the ground (green) you should read 120VAC. If you measure between the Neutral and the ground you will get zero.

Long day of traveling.  I'll check the power with a meter tomorrow.  One thing I did notice this morning when I fired it up.  All air had drained out of the system overnight and when I fired coach up this morning and went into travel mode compressor did not kick on at all.  I think in the past that compressor will kick on in that situation?

On your test in level mode.  I'm assuming I need all air to be out of the system, start coach, go to level mode, hit raise and see if compressor kicks on?