Have a 2002 Itasca Sunrise 32V with the HWH jacks, noticed on our last long trip the front drivers jack wouldn't come up at all. Manually pushed it up with some effort, deployed it again, sprayed all the cylinders with wd40 and wiped clean. The jacks have not had a problem since. It sounds like (from the responses on this forum) I have a faulty inner seal that will need to be replaced at some point in time, anyone out there "nursed" their jacks along for awhile? We use our MH frequently and after the one issue with the drivers side jack, we haven't had any other issues since.