Are you on shore power? The white switch is actually the switch that allows you to extend and retract your slides from outside. Did you hear the hydraulic pump try to run when you pushed it? What is your battery level?
2016 Siverback 33IK, Towed 40K+ miles
2018 Ford F-350 Lariat 6.7L V8 Diesel 4WD Crew Cab
Andersen Ultimate Hitch
RadMini Stepthru eBikes
"If you don't know where you are going, any road will get you there."