Electric Step Fix again
3 Months ago fixed steps that wouldn't stop chattering on open or close by replacing rollers. Plastic roller in old motor crumbled, new one deformed, did the replacement with new rollers and they crushed again. New fix is to replace the rollers with nuts.
BUT the disclaimer to the fix is know what you are doing, the steps are the most dangerous item on the motorhome, they are computer controlled. Sensor turn it on if door is open. They use an electric window motor that if the computer senses obstruction it stops by substituting nuts for rollers you defeat motors safety of stopping before crushing bone or gears.
Disconnect all electric, power cord, battery, solar. Shut off switch at entrance.
Before working on motor gearbox disconnect the electric plug.