Hi Brian M,
I can help with the not retracting. With the not going down problem, consider contacting HWH. They are very good at helping customers.
Check the jack springs. If the last five twists of the coil are straight to the hook the springs need to be replaced. If the last 5 coils are tapered into the hook, the springs should be okay.
If a jack will not retract, while the system is retract mode (not timed out) open the valve ("T" handle) for that jack. If the jack retracts, the valve is guilty. If the jack does not retract the jack is guilty. If the jack is guilty, the problem will not go away, it will only get worse. There is a very large seal inside the jack. Over time, the seal constricts onto the cylinder. This means the springs will not be powerful enough to retract the jack.
2005 Newmar KSDP 3910 + GMC ENVOY XUV 37K lbs Moving Down The Road
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