leveler stopped

[ste1148watt]

2005 Itasca Horizon with HWH leveling system. RR leveling jack stopped extending. Will not extend automatically or manually. Worked fine at last stop.
Any suggestions on where to start looking for problem is appreciated, all other levers work fine.

 

[Gary RV_Wizard]

Each leveler position has a hydraulic line and a control valve, so the best bet if that valve stopped working. Locate the reservoir/pump and the control valves will be adjacent.

 

[Ray-IN]

Which model leveling system? This will help you identify your model. Being a 2005 I suspect you have a 610 central-ground system, the control box size and configuration helps with ID. Gary is right, each jack has its own solenoid and valve, and the newer models operate in pairs, to prevent twisting the frame. When the rest of the jacks are extended, does the light come on for the RR jack too?

 

[John Canfield]

Your tank and solenoid manifold is under the front steps. If you haven't accessed that before, there is a screw(s) that hold down the middle step. Once the screw(s) is removed, the step is hinged and will raise giving access. Check the wiring on the solenoids, make sure they are all in place.

 

[ste1148watt]

Which model leveling system? This will help you identify your model. Being a 2005 I suspect you have a 610 central-ground system, the control box size and configuration helps with ID. Gary is right, each jack has its own solenoid and valve, and the newer models operate in pairs, to prevent twisting the frame. When the rest of the jacks are extended, does the light come on for the RR jack too?

 

[ste1148watt]

its a 625 system. they extend in pairs . The down light does not come on. Control panel is AP 30126

Which model leveling system? This will help you identify your model. Being a 2005 I suspect you have a 610 central-ground system, the control box size and configuration helps with ID. Gary is right, each jack has its own solenoid and valve, and the newer models operate in pairs, to prevent twisting the frame. When the rest of the jacks are extended, does the light come on for the RR jack too?

 

[ste1148watt]

After the other levelers extend the system (pump) continues to run until I stop it manually,

 

[John Canfield]

Doesn't HWH have a troubleshooting guide to download? I haven't looked there in a long time.

 

[ste1148watt]

After 300 miles, leveler working . Go figure.

 

[Ray-IN]

HWH leveling systems depend on clean tight ground connections. I can provide links to your system service manual if you identify the model number.
Or if you prefer you can look it up here: RV Tech Library - HWH Leveling Jack Systems

 

[ste1148watt]

Thanks