HWH Leveling System is over filling my Air Bags with the engine on

[CountryB]

Oilburner may be correct, but I've never seen an HWH 2000 manifold with "T handles" (shut offs) in any manual or photos. I have seen the T Handles on the HWH "hydraulic" valve body for the room slides. Of course I have not seen everything and still learning. Let us know what you find. Good luck

[DaT]

Did the test and bags filled without the air lines connect the Ride Height Valve. I took the pistons out of the manifold and cleaned them. At the top of the pistons sits what looks like a rubber seal. Only one of my pistons had this seal. The others had bits and pieces of rubber. I’m thinking this has to be the problem. Does anyone know if I can purchase a seal/o-ring set for my manifold? If so, where? Thanks so much for everyone’s input. It’s really appreciate.

[kenwyatt]

You can buy kits that have the O-Rings and check valves. Can get them from HWH and I believe North West RV supply, not really expensive and you can buy the O- Rings off the internet

[CountryB]

Originally Posted by kenwyatt

You can buy kits that have the O-Rings and check valves. Can get them from HWH and I believe North West RV supply, not really expensive and you can buy the O- Rings off the internet

You can get all the o-rings except one from HWH. For some reason HWH does not sell one of the the internal o-rings (see the link below). I bought all the o-rings from Grainger. If you need the "seat" for the piston or the electric solenoid, you're out of luck and will need to buy the complete assembly.

This link has info on the o-ring part numbers and some photos of the parts and instructions. Foretravel Motorhome HWH: Solenoid Valve Disassemble | All Things Foretravel

[dicksop]

Hi All,
I am a new member of this forum, and a newby to the "coach community" and am seriously considering purchasing a 1999 40 foot Monaco Dynasty with apprx 65000 miles on it.
I there anything in particular (or actually any hints and suggestions) that I should be wary of and:
-should I be concerned about the air bags (it has a HWH air levelng system)
-do these coaches have heated bays?
-the coach has a 8.3 350 HP Cummins. Any concerns or suggestions?
- 7.5 k Onan QD generator
-Tires are new.
-there is no spyder cracking in the paint and the roof "looks" good.

Any help or comments from those who own or know about these units would be appreciated!!!