I had a situation with my XT 276 regarding the bed not raising or lowering in the garage area.
I checked the switch first, all checked OK.
Checked for power to the motors, all OK.
Couldn't understand why the "chain lift" wouldn't move with power available to motors and no 'electrical burn' smell from the motors.
Upon close inspection of the chain lift mechanism, it was discovered a metal hook from a bungee cord used to secure goods was blocking the chain from movement.
Maybe check the metal track the chain runs in to be assured the chain is free to move.
Just a suggestion.
2012 Fun Finder XT 276 Toy Hauler & Harley Davidson Ultra Classic with Condor wheel chock
2014 Dodge Ram 2500 AT 4X4 Crew Cab 6.4 L Hemi, 373 gears, tow package, Rambox option, Revolver X2 tonneau cover, Equal-I-zer anti-sway hitch.