Is there anybody out there willing to share how to programm an Acorn 180 curved stairlift? The lift as been taken out of a neighbour’s house and length of the rail shortened slightly to fit new installation. Out of ignorance, it was not removed in ‘programme’ mode and now with the new installation the chair does not recognise the new start, finish and corner locations. I would like to somehow programme in that detail. Grateful for any instructions as to how this programming can be set to allow the lift to operate correctly.