my miele tumble drier novotronic t490 will not start?

I went to use my miele novotronic T490 drier and it did not start. The last time it was used it worked correctly to the finish of its programme. There is power to it, the anti crease finish light is on but it doesnt do any thing else. The start selection indicator lights do not light up We have checked the door switch as we thought there may be a bad contact but other than that we are not sure where to go next.