indesit w143,dial keeps turning?

hi i have an indesit w143 but its stoped working. when i put the dial to a program (eg 3) it goes to fill the water but cuts off straight away then the pump go on to emty it even tho theres no water init. as this happens the dial start turning and the red light starts flashing. i have cheked all the pipes and tubes but no blockages. any ideas apresiated thanx