Hotpoint Ariston Programme Wheel Fail

[kennta]

Hi

I have a 4 year old Hotpoint Ariston ARFX 145.

Now I can't seem to change the program with the programme wheel. The machine works as good as new except for the wheel. Just one (default) programme works. I can change speed and temperature with the buttons.

Is there something I han try to get it fixed or is it doomed? (Calling a repair man is too expensive, costs more than the machine is worth)

Thanks in advance