We had that happen on our 2006 a number of years ago. Kwikee steps worked until they didn’t. Picked up a folding chair at Walmart and used that for the rest of the trip as a ‘step’.
The key to getting the steps working was unbolting the motor and verifying the motor would turn both ways when opening/closing door, which it did. Putting the motor back in and the steps started working again. Must have been jammed. The controller limits the max current the motor can draw so if steps are jammed nothing will move. Sprayed a lot of Kwikee Kwiklube on all the joints.