beko washing machine stops mid cycle?

can anyone help, my beko washine machine fills up with water, starts turning in one direction every 20 seconds or so,for around 5 minuites then empties out the water and stops,the dial seems to turn to the next part of the cycle and then doesnot do anything else, i cannot even open the door,, i have fitted a new controller timer and also a speed controlleras directed by my friendly high street washing machine parts seller (£125.00 later), can you help!! (she is nagging now lol)