I had a 2005 2280. The powerwinch on that model is out of production and no parts available. I believe there is a new model about $400 but there are complaints of how loud that motor is. When my motor went out, since I could not find a replacement I decided to go to a manual crank. It is more work than a switch but still not bad to crank up.
As another poster indicated goshen stamping is the manufacturer of the lift system. They are great to work with. I believe a new manual crank and replacement cable was about $130. It is a somewhat dirty job to replace but you do not have to be a rocket scientist. The link below is the parts list to the system I suspect you have
http://goshenstamping.com/media/uploads/0/543_2660-SERIES-DIAGRAM-PARTS-LIST.pdfGood luck