Nuki 4.0 acivated but not able to open door

Discussion
1

Hi all,

my Nuki 4.0 is oftentimes not able to open the door:
Although Nuki is reacting and I can hear the sound of the motor, it was not able to open the lock.
The protocol said it opened the door, with no motor block issues(If the door lock is too heavy it will show the motor is blocked)

I tried to recalibrate it, reset it, etc.
Nothing worked and it happened randomly. My door lock is not heavier or lighter than at any other time. I am not able to find any patterns, when it will work or not.
Is anybody else facing the same issue?

3

Yes, it’s just not reliable. Do you thing the motor is too weak for my lock ?
If this persists I have to change to Aqara or switchbot which seems more reliable.