The first two owners of my rig fought this battle with Winnebago and the extended warranty broker from the dealership. Eventually the Schwintek mechanisms were replaced by Powergear (which is owned by Lippert). I keep the rails lubricated with CRC with PFT as often as I can, but certainly whenever the rig has sit for a while.
Those of us with full wall slides know the heart-stop of the wall not moving when activated. So far, mine has worked as advertised to retract and retry.
Yankee Clipper
2014 Winnebago Sightseer 33C on Ford F53 6.8l V10
2014 Honda CRV 4 down toad/Roadmaster Falcon2 with EvenBrake
TireMinder TPMS,Tiger, the Little Big Man minidachshund,
Rosey the minidachshund resident Princess-in-Chief