Got a 7 stop ESI traction machine. Keeps going above the top floor once every week. Sometimes it last 2 weeks before happing again. The report is it happens trying to leave the top floor and instead of going down it goes up until final limit . ESI has me chsnge the den relay. I also changed selector shoes . It’s very strange only happens on the weekend. Anybody ever have this ? It’s a magnatec drive . 2008 ESI controller.