"seldom used" Regardless of amount of usage, they should be cleaned and lubed monthly per the Kwikee manuals.
Kwikee steps are always "hot', the controller powers the motor by switching the ground.
If the 2 grounds are not clean and tight to the frame, the controller does not work.
Kwikee Products Service Training Manual
2000 Winnebago Ultimate Freedom USQ40JD,
ISC 8.3 Cummins 350, Spartan MM Chassis. USA IN 1SG 11B5MX,Infantry retired;Good Sam Life member,FMCA." My fellow Americans, ask not what your country can do for you, ask what you can do for your country. John F. Kennedy