[Richard]

I couldn't leave the HWH ghost control of the compressor alone. I found two contactors in my generator blower bay. One is the "well pump" switch which turns the aux compressor on and off with pressure. The second has a trigger wire coming from somewhere. I am guessing the HWH system. The contactors are wired in parallel, which allows the HWH to over ride the pressure switch. If I were truly OCD, I would enable the level system and confirm the contactor closes.

So this explains a mystery to me. If you recall I blew a tag air bag in September right after parking. The slope of the pad had the coach head down tail up. As discussed earlier, as long as the HWH system is in active level the aux compressor will run. The mystery was why the brake air gauges were pegged at 150. A Ha! I think the compressor which is capable of in excess of 150 psig contiunued to run and inflate the rear bags trying to raise the coach. On my coach there is no regulation of the air pressure coming out of the aux compressor. The air bag exploded. Examination of the bag did not show any age cracks or other obvious causes.

I make a point of this to warn others that there may be the potential of over inflating an air bag if the coach is parked on a slope AND you allow the HWH system to run for an extended period.