I had trouble with my jacks. I found out that the company that made my jacks was now owned by Power Gear. Here is a link to their web page: http://www.powergearus.com/
. I e-mailed Power Gear and they were quite helpful. Here is a link to their contact page: http://www.powergearus.com/contact
My problem was a broken wire in the control push pad. Power Gear informed me that they were re-engineering the control pad and that new control pads would be available in about a month.
Three weeks later Winnebago Parts shipped me a new control panel that works great.