The Tecalemit engineer came out today and said I needed a new right hand sensor which he fitted then dropped his van into the rollers and found still had the same fault ( rollers only run when the hand set button is kept pressed in ) He then put the old sensor back on and had a look in the back of the tower and said this model is meant to only run with the button kept pressed but I told him it never used to be like this, but he insisted this is the way this model is meant to be. Now I dont know what to believe.