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Old 07-25-2022, 09:49 PM   #1
Junior Member
 
Brand: Thor Motor Coach
State: Ohio
Posts: 1
THOR #27474
hwh 225 series leveling system

Hi All,
My son has a 2012 ACE with the hwh 225 leveling system.
The rear jacks do not retract automatically with the control.
So he leaves the control in the retract position and then uses a floor jack
to retract the jacks.
I would think he has a fluid return problem because the jacks have so much
tension on them he almost lifts the coach with the floor jack.
Any help or ideas would be appreciated.
Thanks.

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Old 07-28-2022, 04:09 PM   #2
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Brand: Thor Motor Coach
Model: 2013 ACE 30.1
State: Alberta
Posts: 1,382
THOR #2631
Interesting that your 2012 ACE has an HWH jack system.....curious if this was original equipment or an add on replacement?

I don't have knowledge of HWH systems, but since no one has replied so far maybe we can start the ball rolling with some guessing. I think your assumption that the jack fluid return line or function may have an issue would be my first thought also. If it was a return valve physical open/close issue, I assume controlled by the rear jacks console lever set in the retract/store position, I would think that forcing the rear jacks with a separate jack would not work at all if the return valve(s) were closed (not allowing retraction.....since fluid has to go somewhere now being pushed by a secondary jack). So the first easy thing to do would be to trace the retract hydraulic hose(s) from the rear jacks and make sure it/they are not pinched somewhere back to the fluid reservoir. If that is not the issue then I would check out the console lever for the rear jacks and determine how it is supposed to open return valves to allow the return of hydraulic fluid. I assume the hydraulic motor is running when you try to raise the rear jacks? I also assume you have the manual for your unit (link attached). Failing that, a call to HWH might be the best solution......could be some simple component in the console unit needing replacement.


https://www.hwhcorp.com/ml54800_generic.html
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Old 08-06-2022, 01:15 AM   #3
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Brand: Thor Motor Coach
Model: 2016 Hurricane 27K
State: Florida
Posts: 2,644
THOR #1589
Sorry I am lare here. He should try the HWH website for a manual. If the troubleshooting section is no help. Call HWH in Iowa direct and ask them. I found them helpful in the past.
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