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Topic: '94 HWH leveler question (Read 638 times) previous topic - next topic

'94 HWH leveler question

We have a 94 U240 Grand Villa.  The Right Rear leveler jack stopped functioning, but all the rest work as they should.  I have looked at all the wiring and connectors at the manifold and the leveling jack. but all look fine. I am thinking the issue may very well be one  the electro mechanical solenoid on the main pump manifold or possibly the sensor on the RR leveling jack.  I looked under the dash for the control box but its not there as far as  can tell.
I called HWH and their help line is booked solid for weeks.  Called Foretravel help (James is on vacation) and pretty much was told to take it to a shop. 
My question to those in the know, 1. is there a test I can perform to troubleshoot.  2. can the solenoid at the manifold be replaced by itself, or does the whole unit need to be replaced ? 3. Where is the HWH control box located?  I do have the wiring/hydraulic diagrams that came with the RV...

Thanks

Steve

Re: '94 HWH leveler question

Reply #1 –
Steve,

Welcome to our group!  We spend a lot of time around here "chatting" about various HWH leveling systems, so your questions are not a surprise.  You must understand, however, that there are not as many members with leveling jacks as there are with air bag systems, so you might need to be patient waiting for the right people to show up with helpful answers.

That said, let me suggest a few "first steps" that you can take.

1.  Identify your HWH system series number.  You may have some documentation with this info, or you could post a photo of your HWH control panel, and we can figure it out.  OR, check out the first link below.

2.  Once we know what system you have, we can locate the pertinent Owners Manual or Service Manual for that system.  These are almost always available online.  HWH manuals contain very nice trouble shooting flow charts that can help pinpoint and correct common problems.

I will add a few links below to get you started:

https://www.hwhcorp.com/ml17785_01_nom_pr_lesy.pdf  (scroll down the page for control panel diagrams)

RV Tech Library - HWH Leveling Jack Systems
1993 U280 SE 40' WTBI, Build: 4359
C8.3 300hp, 6-Speed, Exhaust Brake
960 watts on the roof (6 x 160)
Sorento (or BOLT) on a Kar Kaddy SS
"Nature abhors a vacuum"

Re: '94 HWH leveler question

Reply #2 –
Chuck Thanks
It is the 610 system and I do have all the manuals and diagrams to go with the system.  Unfortunately there are no trouble shooting guides in what I have to work with.  One issue is I can not find the control box itself. Foretravel tech said it is probably the ceiling of garage D2 or D2 but its not there. I know there are fuses for each Solenoid on this control box and it would really help if I could find and check those fuses.  I suspect if it is just a blown fuse that is easy fix. If I replace a blown fuse and it blows again I would suspect a bad electro/hydraulic solenoid to be the issue.  I did find HWH replacement parts and can purchase a single solenoid..... however having been an aircraft mechanic I hate to buy parts to just throw at a problem then find it was not the issue.....
I am patient and fortunately am not stuck someplace on a trip....... it is safely home in the driveway.

Re: '94 HWH leveler question

Reply #3 –
Quote from: Steve Wandt –
We have a 94 U240 Grand Villa.    I looked under the dash for the control box but its not there as far as  can tell.
I called HWH and their help line is booked solid for weeks.  Called Foretravel help (James is on vacation) and pretty much was told to take it to a shop. 


Thanks

Steve

We have a 1992 U225 Grand Villa, SBID, and the boxes for the HWH are under the sofa.
1992 Foretravel Grand Villa
U225 SBID Build No. 4134
1986 Rockwood Driftwood
1968 S.I.A.T.A. Spring
1962 Studebaker Lark
1986 Honda VF700C
1983 Honda VF750C
Charlie, the Dog was broken out of jail 24 Oct 2023
N1RPN
AA1OH (H)e who must be obeyed.

Re: '94 HWH leveler question

Reply #4 –
I have a '94 and the control box is located on the wall right next to the insulation that covers the generator air intake box in the compartment right behind the generator itself. Mine is a 280, though.
1994 U280, Build 4490
Deming, NM.

Re: '94 HWH leveler question

Reply #5 –
Steve, firstcheck if the ground wire is still attached to the cylinder of faulty jack, and, make sure it is a good connection. Is there anything that may be restricting all movement of cylinder, can you pull it down by hand to the vertical position?
Check at the hydraulic pump to see if that solenoid is working and the tee handle can be opened and shut.
Identify the correct hose by che king the number one hose at pump and cylinder.
JohnH
Coachless, now use aircraft. 2003 Ford Travelair TC280 class C. Super shape. Just for 1 yr .
1994 Ford E350 ClassC,total renovation inside and out. Now sold.
2000 U295  36' Cummins 350 c/w Banks Stinger, Resonator upgrade,Solar, LED lites.Residential fridge with slide out pantry. Build 5674. Sold
ex 92 GV 022C ored Cummins. Sold
ex 95 GV240 cat 3116. Sold
2017 Mini cooper s & 2016 land Rover LR2 HSE  LUX.
jhaygarth@aol.com    SKP #130098
treat everyone as you would like to be.

Re: '94 HWH leveler question

Reply #6 –
Quote from: Twig –
I have a '94 and the control box is located on the wall right next to the insulation that covers the generator air intake box in the compartment right behind the generator itself. Mine is a 280, though.
I Will look behind the generator, thanks

Re: '94 HWH leveler question

Reply #7 –
Quote from: John Haygarth –
Steve, firstcheck if the ground wire is still attached to the cylinder of faulty jack, and, make sure it is a good connection. Is there anything that may be restricting all movement of cylinder, can you pull it down by hand to the vertical position?
Check at the hydraulic pump to see if that solenoid is working and the tee handle can be opened and shut.
Identify the correct hose by che king the number one hose at pump and cylinder.
JohnH
Wiring seems to all be good (at cylinders and solenoid) and there is no restriction in movement of the cylinders. 

Re: '94 HWH leveler question

Reply #8 –
Yeah, I found the control box, its under the couch and of course, the fuses are facing toward the outside of the bus and not readily worked on.....

Re: '94 HWH leveler question

Reply #9 –
HWH has a Face Book forum; they have been very quick to answer when I had kick-down questions. ^.^d
1993 U-240 "La Villa Grande"..CAT 3116 w/ Pacbrake PRXB...Allison 3060 6-speed..
Previous: 1983 Airstream 310 turbo diesel, 1979 Airstream 280 turbo diesel
                                      Build # 4297
                                      PNW natives
                      Home base:  'Cactus Hug' (Ajo, Arizona)
                        DW Judy & Chet the wonder dog
                        Full-Timers 'Sailing the asphalt sea'

Re: '94 HWH leveler question

Reply #10 –
Quote from: Steve Wandt –
We have a 94 U240 Grand Villa.  The Right Rear leveler jack stopped functioning, but all the rest work as they should.  I have looked at all the wiring and connectors at the manifold and the leveling jack. but all look fine. I am thinking the issue may very well be one  the electro mechanical solenoid on the main pump manifold
I'd think it's the solenoid, one of ours was replaced a while ago. FYI: put some info down below in the 'sig' section, including your build #, it sure helps when questions/comments come up. Welcome!  ^.^d
1993 U-240 "La Villa Grande"..CAT 3116 w/ Pacbrake PRXB...Allison 3060 6-speed..
Previous: 1983 Airstream 310 turbo diesel, 1979 Airstream 280 turbo diesel
                                      Build # 4297
                                      PNW natives
                      Home base:  'Cactus Hug' (Ajo, Arizona)
                        DW Judy & Chet the wonder dog
                        Full-Timers 'Sailing the asphalt sea'

Re: '94 HWH leveler question

Reply #11 –
Thank you everyone. I ordered a solenoid, changed it out and problem is solved.  FYI I ordered the solenoid through Foretravel, (they had it in stock) because HWH is a bit difficult.