After a very short time, the plates were suddenly no longer warm, good can happen even once,
therefore returned, Tefal has sent a new immediately.
Unfortunately, even after a short time the same. The green pilot lamp from the beginning and the plates no longer heat up. So again sent to Tefal, shortly afterwards again get a new one.
Lo and behold, after a few uses (we are talking about max. 10 times) you can plug it in again, the green light comes on immediately and that's it.