The problem is likely the door switch coupled with the override switch either beign OFF or the fuse blown.
But.. to manually retract KWIKEE steps (may apply to other brands)
Pull the motor plug to insure they do not bite you
From underneath look at the assembley there is a box the motor attaches to (Transmiossion) with an arm. the arm connects (Eventually) to another thing that pushes the steps out or pulls 'em in using a common clevis type pin with a cotter key.. Put somthing under the steps so they don't come back and bite you (Some leveling blovcks or even a kitchen pan)
Pull cotter key, drive pin out.
Steps should now "Swing" Free (Why you bloked 'em)
Push 'em into the retracted posiotion and bungee in place for the drive to fix it shop. Use a step box of some kind to get in and out (Attach a light weight rope to step box so you can pull it up and in once inside the RV.
Home was where I park it. but alas the.
2005 Damon Intruder 377 Alas declared a total loss
after a semi "nicked" it. Still have the radios
Kenwood TS-2000, ICOM ID-5100, ID-51A+2, ID-880 REF030C most times