Re: teka HT590 1
The model is not listed on Connect but the HT610 is, looking at the picture of it, it has a thin shaft, that I take goes into the knob, the opposite end is a hell of a lot larger that attaches to the stat/switch, and in the middle is a circular cam disc which is shaped out on one side, made out of a yellow green nylon plastic material. Listed under PART number TEK03030145. Type in on googlepictures, same picture of it on BUYSPARES 8)