Check the Elevation Limit Switch on your Cybex NextGen T-series treadmill using your multimeter's continuity feature. A damaged limit switch -- or "home switch" -- will not allow the treadmill to work properly. Keep a supply on hand. Quantity discounts available. Customers may receive a limit switch with three prongs; use the prongs labeled NC and NO. OEM #0017-00032-0195 can be used on Cybex R-series and Cybex V-series, and most LifeFitness treadmill models.