Air horns stopped working

[David T. Richelderfer]

The air horns stopped working this past Winter, but I am just now getting around to fixing them.  After reading the several threads here on the Forum regarding our Beaver air horns and digging into the coach, what I have determined is the air valve solenoid is fried.  Its plastic housing is melted and it smells of a hot electrical fire/smoke.  The wall where the solenoid is mounted in the electrical bay is stained.

As near as I can figure the item is a "Hadley Horns H00550B 12v Tank Mounted Solenoid" which I found on Amazon with this aforementioned description.  The question I have is there are three models of this solenoid - H00550A, H00550B and H00550C.  I am pretty sure the one I need is the H00550B.

Can someone confirm this?

[Michael Peters]

hello David, the 550B is the one I used.

[David T. Richelderfer]

Thank you, Mr. Peters.  I ordered one H00550B from Amazon - about $48 including Prime free shipping.

[David T. Richelderfer]

It's all fixed.  We put in the H00550B air horn air valve solenoid, then had to get some connector parts because there was a small air leak.  After another $10.34 for parts at NAPA it works... for now.  Okay, now on to the next thing.