Is it a Schwintek, BAL cable, or Lippert hydraulic slide? If ST or BAL, lots of info on this forum; do a search. Also, there are videos on YouTube about ST and BAL. WRT to it not retracting, it may have jammed as it deployed. Sometimes all it takes is to have someone operate the retract switch while you push on it from the outside. Lippert has instructions on thier website for their products, too.
--2005 F350 Superduty Crewcab, 6.0, 4wd, short bed, 3.73 gears;
--2016 Montana 3711FL, 40'
--2014 Wildcat 327CK, 38' SOLD