Re: HWH Panel slide issues
Reply #7 –
That will be the 9700 wire from the control box to the Auxiliary compressor. That is separate from the pressure switch on the compressor which maintains the tank to keep the bladder inflated. As Dennis mentioned, when you press a raise button of the control pad, or turn the key to deflate the bladder prior to moving the slide in, it sends a signal to the aux compressor and calls for air.
We had an issue a few weeks ago where the 9700 wire was not connected to the compressor. It took a while to figure it out as that was not only preventing the slide bladder from deflating, it was also shutting down the HWH system the next time the auto-level called for air. It masked itself nicely when leveling upon arrival as it only required a dump, but would go shut down with excess slope and require starting the engine, letting off the parking brake, and resetting the system. At that point we could deflate the bladder and bring the slide in. Once I found the 9700 wire not hooked up the the compressor and got that sorted, leveling, slide and travel light sorted itself out. (Note: on our coach, if the slide is out it will not go into travel mode. Not sure if that's the case for everyone.)
I stumbled across this following the HWH manual where troubleshooting guide said the test for 12V on the 9700 wire. Once I went to do that and saw it disconnected, it was a ah-ha moment. 