trouble with my Hotpoint Ultima Model TDC60 Tumble Drier?

i have the above & have changed thermostats over the years with no probs but now it is heating & running for around 10 minutes even doing the reverse then it just stops. you can here it clicking, dry light is lighting & active light is also on but it just wont restart even if i switch off & try it again. i have cleaned out all filters & stripped it down & hovered it all out even the fans of all the fluff.
can anyone give me some idea plz.
bill.