I'm trying to perform a hoistway scan. It's a 2 stop and all hoistway switches have been checked physically. The selectors led stays on while running up the hoistway and about 3" from floor level goes out with a 62 selector fault while the car passes the top floor and stops 1 5/8" above the floor on the limit. The Main and Aux sensors have been checked and deemed good? Any ideas? What does "pulse count in wrong direction" really mean?