My levelers wouldn't retract on my 2014 THOR Challenger, went through service manual , still nothing. A tech from my local dealership was coming by the campground I was at and offered to help. He had them repaired in 5 min, there is a breaker in the engine compartment above the battery. He reset that and they came back to life . Just a note NONE of the manual ways in the service manual or a call to LCI would fix them. The manual doesn't mention this breaker at all nor the tech from LCI. The Dealer tech told me you would never know about this breaker unless you worked on them all the time.