if the lights on the front flashes as if the program has been set and will not start when you press the start button then I would suspect the diffuser button press has broken behind the fascia.common problem.part around £10.you can remove the fascia and control pcb and directly press the button on the pcb to prove this is the fault.the part that breaks looks like a spiral plastic airfix bit and it breaks away from the edge
ck
August 2009