My response is not exactly on target, but on my magnetic door frame switch can be manipulated by another magnet to make the steps work.
I have to do so about every 6 months or so to restore proper operation of the exterior steps.
Perhaps you are beyond that point.
1995 38' CC Magna #5280
C8.3L 300hp Cummins, 31,000lbs
Gillig Bus Chassis