[Archived]

I have parked my coach in the garage for months on end, and my pressure hasn’t dropped a single PSI.

Of course the starting pressure was 0 PSI.

Can you guys bring some of what you are spreading and put it on my garden?

[Archived]

Tom to bring this back to the real world, On you video on Aux Air, you show an on/off switch for the Marathon compressor. Did you add that switch ? I only have a CB.

thanks

[Eric]

That switch was factory Larry. I looked at Cole’s bus and I didn’t see a swich either, only a breaker. Maybe it’s because originally, mine had two aux compressors, one small 12v and the other the large 120v. Never quite understood the purpose of the small 12v, Marathon couldn’t give me much of an explaination either, but possibly that’s why the button was installed and did conrol both. I removed the 12v compressor.

[Archived]

We have found that all of our coaches are part of an evolutionary process. Just because two coaches on the same chassis produced by the same converter during the same year may be expected to be identical, they may not be.

Prevost makes running changes on the shells. Some are minor changes, but as an example in 1997 the XL chassis had a solid axle on some coaches, and then later during that chassis model year coaches were produced with the first independent front suspension. Converters do the same thing. Another owner and I had virtual twins with respect to our Liberty conversions. His was furnished with the older style Heart modified sine wave inverters and mine was equipped with pure sine wave Outback inverters, and how they were wired into the coach was completely different.

So it is difficult to keep this in mind, but we have to be sure any time we post questions or answers we recognize the information we provide has to be as specific as possible to help others understand there might be differences.

At our seminar in July we got to look into and at a lot of coaches, and it was interesting to see the way in which a lot of the conversions from a converter were identical, but also how many differences there were between the same conversions.

[Larry & Diane]

Thanks Tom, I am concidering adding a switch and was looking to pick your brain on the wire routing. I do have the hole, pluged, for the switch at the same location as yours so that will help.

[Kim]

I removed every one of these from both Prevosts I’ve owned. The valve is a rounded tip which you tighten into a

recessed curve. Great when new easy to open and close . Problem starts when water sits in this valve corroding seal and they continue to leak more and more.

[Peter]

Hi Larry-

Had the same problem with the aux compressor (house). Couldn’t shut it off if I had a leak – had to disconnect wires to the compressor. Finally had Marathon install a switch in the generator compartment so I could manually shut it off. The Marathon tech said I have a stuck relay (buried somewhere deep within the coach) that provides power to the compressor. The circuit breaker at the bedroom panel provides control power to the relay. That explained why I could not shut off my compressor by tripping the circuit breaker at the bedroom panel. You probably have a switch installed by now. Call me if you want pictures showing how they mounted mine.

[Dick]

I question the tech on that statemen about a relay buried in the bus. ?

Power is supplied to AUX compressor from a labled trip contact on a panel inside the bus.

Here is the $64, thousand dollar question…….if you shut off the the aux compressor ?

(1) do you still have AUX air to run air doors, bed lift, generator air bags ?

(2) does the air continue to leak down ….in a hour or so ?

If that is a yes …find this valve in your drivers bay. What position is yellow lever in ?

Too my knowledge …..there is NO relay buried deep in the coach . Marathon for the most part hides everything in plain sight.