At the first use I connect to AC power, rule the timer to 60 minutes and the spindle starts turning in a pretty blue light. But that does not heat. Argh. I look a little closer and I discovered a small push button that serve to race from start safety switch of the protective window. If I pressed, the heating resistors are on. I gather that the protective glass is supposed to press the push button when closed.
For 99 euros, I expected better quality.