We had got back from a rainy camping trip and immediately cranked up the camper to dry out. A couple of days later it had dried and we were going to crank it down. About 1/2 way down it suddenly went in to a free fall to the bottom. When I tried to raise it back up, the crank handle just turned free. I removed the plate under the wiffle tree assembly and found, when I turned the crank, the cable carrier just sat there while the threaded shaft turned. Anyone know what may have happened?