Help when I switch the machine on all 5 programme lights come on and then programme 5 goes out and 1 to 4 flash continuosly and the machine beeps constantly. If I close the door with the 4 lights flashing a motor can be heard to start and run for about 2 minutes and then shuts down, there is no sign of any water going into the machine. I have tried the drain out of any water incase it was the anti flood device but it still goes back to the original fault. Any ideas please. The machine is 20 months old