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Topic: HWH Front end rising??? (Read 692 times) previous topic - next topic

HWH Front end rising???

Seems like when parked and the system has leveled the front end is rising a little every day.  The last week or two front is lowered completely and the rear is up 3"+/-.  HWH touch panel shows no yellow lights.  Have re leveled using the interior door test.

Thoughts?
Scott & Carol Seibert
2001 42' double slide U320 - Sold
Previous - 2002 36' U320

Re: HWH Front end rising???

Reply #1 –
Out of level and no lites, maybe the computer has lost contact with the level switch or a board problem.
You can check the cable connection on the level switch and where that cable connects to the computer?
JD


John Duld
1995 U320C SE 40'

Re: HWH Front end rising???

Reply #2 –
Scott, There is a pressure regulator under the front of the coach. Its purpose is to allow the rear to come up faster than the front since the rear is heavier.  Check to see if it is leaking or working properly.  25 Dollar fix if its dead.
Gary B

Re: HWH Front end rising???

Reply #3 –
Quote from: Carol & Scott –
Seems like when parked and the system has leveled the front end is rising a little every day.  The last week or two front is lowered completely and the rear is up 3"+/-.  HWH touch panel shows no yellow lights.  Have re leveled using the interior door test.

Thoughts?


Use the kitchen counter
"Riding and rejoicing"
Bob
1997 U320 40' Mid entry, build 5132,  wtbi ce27, 4th owner
2007 Solara convertible
2 prodeco tech outlaw ss electric bikes

1095 watts solar
08 Ls 460 and a sc430
2000 Ford F-250 superduty 4x4

Re: HWH Front end rising???

Reply #4 –
We actually use the kitchen counter and the bathroom door. 

After level we seem to drift up in the front a little each time the Aux. Comp. comes on.  Is not measureable at the time but over 2 to 4 weeks I can energize the HWH level control panel and push the front down button and it drops back to "good". 

I had been thinking that we were loosing a little bit of air through the rear manifold but it appears that the front is rising.  Interesting.....  ;D
Scott & Carol Seibert
2001 42' double slide U320 - Sold
Previous - 2002 36' U320

Re: HWH Front end rising???

Reply #5 –
Quote from: Carol & Scott –
I had been thinking that we were loosing a little bit of air through the rear manifold but it appears that the front is rising. 

You might consider recording the air bag height measurements over time - that can help you figure out if it's related to a ride height valve or one or more of the HWH solenoids.  We've done this on a couple of occasions where we were having leveling system issues and it really helped.  I just measured the distance between the metal plates and tracked them in an Excel spreadsheet.
Learn every day, but especially from the experiences of others. It's cheaper!  - John C. Bogle

2000 U320 36' non-slide / WildEBeest Rescue
2003 U320

Re: HWH Front end rising???

Reply #6 –
As usual Michelle you have a great suggestion..... ;D
Scott & Carol Seibert
2001 42' double slide U320 - Sold
Previous - 2002 36' U320

Re: HWH Front end rising???

Reply #7 –
Scott,
It looks like another case of more than one thing wrong.
There are only two ways for air to go onto an airbag, through a travel solenoid or through a raise solenoid.
A leaking travel solenoid will let air migrate from the air tank to a bag as long as the pressure in the tank is higher than pressure in the air bag. However, as the coach goes above travel height the ride height control valve goes into the let air out of the airbag position from let air tank air into the airbag position and the coach will stop rising. So, if your coach is rising above travel height,  I don't thing it's a travel solenoid.
That leaves the raise solenoid, but that would only add air to the bags on one side, unless both raise solenoids are leaking and that's unlikely.
So measuring the airbags to determine which one is rising will point to the leaking solenoid.
You also say when this out of level (front high ) condition happens that you don't have any out of level lights on. The level switch should sense this condition and tell the computer to turn on the out of level lights, something else to chase!
JD
John Duld
1995 U320C SE 40'

Re: HWH Front end rising???

Reply #8 –
My coach does the same thing only in reverse. After 2-3 weeks the drivers side is obviously low and the rear airbags are at max height
2002 U320 40Ft  MC # 15759
Coach # 5995
Previous coaches
2002 U320 coach  #5941
1996 U270 coach #4808

Re: HWH Front end rising???

Reply #9 –
I may have read that wrong. My left front (driver side ) is low, all the rear airbags appear to be fully extended.  Curbside front looks normal. I'm going the measure and get a better idea of what is actually happening.
2002 U320 40Ft  MC # 15759
Coach # 5995
Previous coaches
2002 U320 coach  #5941
1996 U270 coach #4808

Re: HWH Front end rising???

Reply #10 –
I also guess that the sensor under the cabinets has something to do with situation. 

Thanks guys and gal for your input.  :D
Scott & Carol Seibert
2001 42' double slide U320 - Sold
Previous - 2002 36' U320