If the gate doesn't work as it should (strange behaviour, open/close when it shouldn't) the coulisse cable and coulisse pcb needs to be checked.
The drive unit must be removed from the chassis. The coulisse board is located in the middle of the drive unit, see below picture. The coulisse cable is located at the back of the drive unit, going between the PCB:s.

Recommended spare part
- If the Coulisse board/cable or the Drive unit itself is faulty, below spare part can be ordered.