Our Kwikee steps are original to the 15 yr old motorhome.
Only problems we had were lubing the parts at the motor and step joints with a grease. It gathered a lot of dirt and froze things up. Since then nothing but silicone spry. They still get stuck from road dirt when it rains hard sometimes. I think there is a shield missing to keep road spray from hitting as you go down the road. I had to squirt the step swing points or joints the other day with silicone. We have kept them extended and it rained and snowed.
On the way out here at a RV park in Ark I opened the door to exit and get us in close and putting jacks dwwn position for utilities and the step hit a railroad tie around their plantings and broke the pot metal arm that operates the steps from the motor.
RV Park Mgr came to the rescue with a part.
There is another manufacture that produces a set of steps that look almost just, like the Kwikee but has sealed bearings and joints I don't remember the brand but it is something like Seakins.
Then there are the new extend only type steps, which are a step up in design, that are made t fit the same openings but about1400.00 but can be had for much less.
If you can mange to get under the step area, use some diaelectric compound on the plug or electrical splices.The plastic like kind is much better than the older petroleum based diaeltric grease.
One electric is secure wash the steps off with lots of water pressure before lubing with silicone. Heat shrinks on wire joints if need be should keep all moisture out. Wires to the switches may need looking at. And...did someone turn off the step in the closed position by accident. Our control panel is right in the entry way.You can turn them off with steps extended and that is okay as the safety interlock when you put in in gear will retract the steps but better still have the switch in the on position.