Schwintek systems are hated by any RV tech, ask one. Jayco uses them on most every model due to they use nothing but electrical leveling systems on towables. The question is always when will they have issues not when but what. Lippert has updates out there for the older 300:1 systems. keep in mind that other OEM RV manufacturers use hydraulic systems which are more forgiving than Schwintek.
Did you ever wonder why Jayco use hydraulic systems on the Class A and C models and not electronic Ground Control?
2015 F-450 XLT 440 HP Power Stroke 26.5K Custom Resse F/W, Manual Regen, 19.5 Rubber
2014 Oreion Sand Reeper 4x4 Toy steel everywhere, street legal and licensed, 5 speed manual, 3 cylinder DOHC "Chery" engine and 2 door fun.
2015 Jayco Sesimic 4212 Extreme Weather Package, Dual Pane Windows, Side and rear Patios, 480 watt Zamp Solar Pkg 6 AGM batteries, Residential Fridge, custom Dishwasher, 5500 watt Onan and lot of problems.