Posts: 35
Threads: 15
Joined: Jan 2022
Good morning Gurus, I have coach 776-06, and my compressors run almost constantly to the point red light comes on that reads" excessive run" I've lost a good portion of air to the point air doors can barely open or shut. When the coach is running no problem at all. Any insight? Thank you, Mike
Posts: 237
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Joined: Mar 2022
It sounds to me your auxiliary/120v compressors are weak or having some issues maintaining proper air pressure. How old are your auxiliary compressors?
Maybe it's time to get that replaced.
When the coach is running, your main compressor (powered by the engine) kicks in, and it was able to maintain enough air pressure, albeit minor leaks somewhere, so you don't observe an issue.
Joe Zhao @ Greenville TX 75402
2004 Newell Coach 701, 45-8, 4 Slides, Front Entry
Detroit Diesel 60 w/DDEC, Allison 6-Speed AT, ZF Suspension w/Steerable Tag, ZF Auto Traction Control
(This post was last modified: 03-31-2022, 09:10 AM by
kaptain.)
Posts: 134
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I had a similar problem when I first purchased our coach, turned out the 120 compressor was not making any pressure and neither was the 12 volt compressor. Check and see if your compressors are making any pressure, I did this by simply disconnecting the air line exiting the compressor and placed my finger over it while running and it had no air pressure at all, same for the 12v. If you have pressure at the pumps, then you must have a large air leak somewhere. Good Luck
Dario and Andrea Perini
#581 2001 45'8"
Posts: 35
Threads: 15
Joined: Jan 2022
Sorry it took so long to get back to you. So I found 7 fittings leaking at swivel and water/air separator bowls in air compressor bay and passenger side slide water/separator had multiple cracks in them!! Thank you all for the help! Regards
