Tac20 1086 faults

Two stop tac20 leaving bottom floor won't get into high speed going up I have ntst tsl1,tsl2 I did notice coming down to bottom floor tsl,tsl2 did not go low stays high all the time bottom floor

Be sure there are no gaps AT ALL between the slowdown magnets at the bottom. Check too that those magnets (once confirmed they’re in place) are glued on one edge to the steel tape.