I have also had continued air horn problems since delivery. The information posted here is all correct. Mine was "fixed" at the dealer, then again "fixed" at the factory, but each fix lasted only a short time. The factory fix failed again the same day. My new local dealer did the last fix. I asked him what was the problem. He said the preasure was high at the solinoid which would sometimes cause it to stick. Sometimes dumping all air or working the brakes to reduce preasure would help. He advised dumping all air from valve, (hook your air hose to the fitting for tire inflation) & opening the valve. When gauge is 0 psi press down on the connector sleeve at to of valve (small air line) then pull the line out. Put a couple of drops of "air tool oil" in the valve then work it by honking the horn. Re attach the line & you are good to go. I have had to do this a number of times, a real PITA. The last time I had a problem I took the valve clear out to test, jumped 12v from batt to opperate. I also tested the HORN by using the onboard air system to shoot air up that small air line, works good. While the valve was out, I recordes the p/n's , it is made by HADLEY same as the horns. unfortunatly I lost that info. Good luck.
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Winnebago Coach Forum Member. 2004 Vectra 40 AD Cummins 350 W/Banks power package, 2004 PT Cruiser, GT, Turbo, 5spd, Good Sam, TT, FMCA
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