F9 fault code Zug Adora TL dryer how to repair, how to Reset F 9

After spending a lot of time on Internet looking for info how to repair F9 fault code on this Swiss made Zug Adora, I found the way by my self. This is how to get it working. Press and hold 3 buttons (see video) this will Reset the pcb board. And the dryer will start working normally...