I've got a Hotpoint TVFM70BGGUK tumble dryer. The timer isn't advancing so doesn't turn off at the end of the time selected. Now, As I have worked out ,it needs the timer unit replacing. All of the spares sites I have visited are quoting around £55 for a new unit. I can buy a new dryer for £209. The old one has had three drive belts and three filters on it. What would you lot do?