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Topic: HWH 510 one jack won’t stay down (Read 435 times) previous topic - next topic

HWH 510 one jack won’t stay down

1992 ORED with HWH 510 kick down levelers. Left rear jack retracts and stores when you release the lift button for it. Replaced the solenoid for that jack, nothing changed. Anyone have any ideas?
1992 Foretravel 36' Grand Villa ORED - VC22RD Chassis - 8.3 Cummins

Re: HWH 510 one jack won’t stay down

Reply #1 –
This may sound a bit daft but have you drained the air tanks ?
88 Grand Villa 36' ORED 3208 (throwaway)Cat.
 Build # 3150
Happiness is the maximum agreement of reality and desire.

Re: HWH 510 one jack won’t stay down

Reply #2 –
A great HWH tech in Arizona is always willing to help diagnose HWH issues.

Paul Maddox
602 549 3638 pacific time.
pfmaddox@att.net
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
Moderator Diesel RV Club 2002-
Moderator, FMCA Forum 2009-2020
Chairman FMCA Technical Advisory Committee 2011-2020

Re: HWH 510 one jack won’t stay down

Reply #3 –
Could be leaking past the valve on the jack or at pump tank location.
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: HWH 510 one jack won’t stay down

Reply #4 –
Quote from: John Haygarth –
Could be leaking past the valve on the jack or at pump tank location.
Johnh

Would I see an external leak?
1992 Foretravel 36' Grand Villa ORED - VC22RD Chassis - 8.3 Cummins

Re: HWH 510 one jack won’t stay down

Reply #5 –
No it would bleed back to the reservoir.
1999 40 ft. U-320 wtfe build 5563 Chuck & Lynda's "Rollin' Inn"  2030 watts solar
prev. mh's 71 GMC 5 yrs. 73 Pace Setter 1 yr. 78 Vogue 5 yrs 81 FTX 40ft all electric 18 yrs. 1996 Monaco Signature 3 yrs.
2014 Grand Cherokee Overland
Dream as if you will live forever. Live as if you will die today.  James Dean

Re: HWH 510 one jack won’t stay down

Reply #7 –
Quote from: wolfe10 –
A great HWH tech in Arizona is always willing to help diagnose HWH issues.

Paul Maddox
602 549 3638 pacific time.


Will do
1992 Foretravel 36' Grand Villa ORED - VC22RD Chassis - 8.3 Cummins

Re: HWH 510 one jack won’t stay down

Reply #8 –
Called Paul, he stated the only thing that would cause a jack to come back up would be the solenoid. I replaced the solenoid before I called him no change. He suggested new one was bad, so I swapped with another one on the manifold, no change.

Anyone have any other ideas? Thanks
1992 Foretravel 36' Grand Villa ORED - VC22RD Chassis - 8.3 Cummins

Re: HWH 510 one jack won’t stay down

Reply #9 –
So, I've discovered the controller is keeping power applied to that solenoid after the pump stops, allowing pressure to leak back. Not sure if I can even get a replacement control. May just build a manual switch control board.
1992 Foretravel 36' Grand Villa ORED - VC22RD Chassis - 8.3 Cummins