Not finishing the drying cycle

[wang]

My siemens wash/dryer 3100 was working fine for 5 years. This morning I set it on normal wash and 60 min. drying time. But the drying stoped completely after 30 min. So the actual drying time is 30 min. instead of 60min. How can I fix it?

Ps, the timer switch is now loose between 0 and 30 min.

Thanks

 

[Sleepyhead]

Pull the knob off, it's probably broken inside.

 

[wang]

Thanks for your reply.

I pulled the knob out a little bit and it worked again when I set it 20min.
But when I set it more than 30 min. and had the knob pulled out a bit, sometimes it works and sometimes it does not.

Can I fix it or I have to find the professional? Please help as I need to sell the machine very soon.

Anna

 

[Sleepyhead]

Pull the knob off and see if the plastic inside it has broken. That's the most likely cause.

 

[wang]

Thank you. The knob has been replaced.

Anna