Check if the Childsafe sensor works as it should. 
Is the LED diode for Childsafe on the whole time? Or doesn't the LED diode turn red when activating the sensor? If the detection area needs to be changed, see below.

Make sure that the detection area is free from any obstacles.

Additional video


Recommended spare parts

- If the Childsafe sensor or bracket itself is faulty, below spare parts can be ordered.