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HWH joystick control box
I have a 1993 Fleetwood Coronado, Chevy P32 chassis with the HWH 200 Series manual leveling system. This is the one with the joystick and levers on each end for release. They lift up the motorhome just fine, but the release levers don't do anything all of a sudden. I've removed the manual plugs on the jacks, and they eventually go up once all the fluid drains out, but the inside release valve does nothing. I've got the service manual, but don't see this particular problem addressed. On a few posts, I've seen something about a shuttle valve, but was wonding if anyone has had this problem and resolved or did troubleshooting on it successfully. I called HWH, waited 2 weeks for a call-back, and when they finally called back, they were less than helpful.
Also, if anyone is expert on this system, can you offer an explanation of how this joystick control box works? I see 8 screw in plugs at the bottom of it. Are those some kind of electrical switches, or some kind of hyrdraulic valves? The ones for raising the motorhome in the middle of the box seem to have much more travel available from the pins in the center of them than the ones for lowering the motorhome. There's also some kind of electrical circuit board attached to the center 4 plugs, which sparks a little when you start to engage the pump to raise the MH. What's that all about? I saw a video on YouTube about cleaning that all up in there, so I guess I'll try that, but it sure would be helpful to know how this system works before I go fiddling around in there. Can I take the outside plugs out and clean them, since they seem to be the ones that are not functioning? I haven't thoroughly read the service manual yet, but in looking through it, there are lots of troubleshooting procedures (except for this problem), but not much explanation of how everything works.
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1993 33' Pace Arrow
Fleetwood Coronado
454 FI P30 Chassis
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Linear Mode
