Community Forums

JimmyO23 · 04-17-2025, 10:41 PM

Quote:

Originally Posted by Skip426

PPV; is to save pressure for the front brakes in the event of an air suspension bag rupture .

The valve stops delivery of air to the suspension if the supply tank pressure drops below 70 psi.
It's also the reason why the suspension won't rise until tank pressure builds to 70 psi on start up when the air tanks are drained and the suspension is down .

I will have a look tomorrow. Most of my air lines and components run above everything and are kinda hidden.

Ray,IN · 04-20-2025, 07:34 PM

Quote:

Originally Posted by Skip426

From 15 years of being over/under/around and through my coach systems ; I'm sure that it was never equipped with the Norgren valve .

Now my older chassis is equipped with a HWH 310 series leveler set up , and my control panel has a dump button ; so it's not automatic .

Again , it's my understanding that Newmar installed the dump valves and their wiring during the leveling jack installation ; not Freightliner.

I don't believe a new Norgren valve wouldn't fix your issue , considering the system dumped air from the suspension , before the HWH board repair .

Now a question .
Is your air suspension system supply the same as mine , and include a PPV ( Pressure Protection Valve ) between the front tank and the suspension ?
You should be tracking the air line from the front tank to look for a valve added ; OR ; try to find where the two lines , apparently removed from the Norgren valve are now connected .

Now ; Paul Maddox ; iRV2 user name AZPete , works for HWH and helps iRV2 members with issues when he can so I'll give you his e mail address and you can message him for his input on your situation .

pfmaddox@att.net

Paul is very active here in the forums ; but he probably missed your thread because I'm sure he looks for threads with HWH in the heading.

You are correct. HWH does not supply the dump valves or wiring. Winnebago "marries" the dump valve wiring and HWH wiring during coach construction.
FWIW, my front air springs do not begin to inflate until the pressure gauge reads 100PSI.

Skip426 · 04-21-2025, 09:09 AM

Jimmy; here's a link to Winnebago wiring and parts info.

http://www.winnebago.com/owners/owne...s-and-diagrams

EDIT : Link not working ; I'll be back

RE-EDIT : Fixed; third time's a charm. LOL

SamSter0077 · 05-09-2025, 08:18 PM

Quote:

Originally Posted by JimmyO23

Hi everyone,

When I try and follow those wires, they appear to run to a Norgren solenoid valve. (See pic)The issue is there are NO air lines on it! It is like someone used something else but never removed it ��

Can anyone help me with what or where I should be looking?

Btw, I have tried the fast idle button dump and level….it didn’t work. ��

Attachment 438340
Attachment 438341

Mine would not air up recently, and I had to learn the automatic override button.. there is one to air up and one to release.. little bitty button. I am looking at yours, and it looks like it's connected correctly.. mine has one air line going into it and one tube going straight down (to try to prevent foreign debris from getting in i suppose)

hope it helps

Click image for larger version

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edit- sorry, having a hard time sharing the photo??? not sure how to upload to this site... think I got it.

Here, I circled the manual overide buttons in Red.

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your manual overide buttons might be on each side looking at your photo.

JimmyO23 · 05-10-2025, 12:57 PM

Quote:

Originally Posted by SamSter0077

Mine would not air up recently, and I had to learn the automatic override button.. there is one to air up and one to release.. little bitty button. I am looking at yours, and it looks like it's connected correctly.. mine has one air line going into it and one tube going straight down (to try to prevent foreign debris from getting in i suppose)

hope it helps
Attachment 439865
edit- sorry, having a hard time sharing the photo??? not sure how to upload to this site... think I got it.

Here, I circled the manual overide buttons in Red.
Attachment 439866

your manual overide buttons might be on each side looking at your photo.

Thanks for taking time to send pics Sam. Unfortunately mine only has the line that dumps air connected to it. There are no other lines connected. Those are the lines that control the height.