Hi Check this on the door operator
Description:
Fermator door cam relaxing issue
Fault is the door cam relaxes and re-closes after the door has been closed and the lift parked for
a while.
Action Required:
On the Fermator door operator emergency power supply unit , set the slide switch on the side for the
door locking to “Yes”
Change the following parameters with the hand controller on the Fermator Door Controller
In the Options Menu, Set the parking mode parameter to “Disable”
In the Setting Menu , set the Protection parameter to “Partial”
If the cam still relaxes you also may have to up the door hold close torque, this is usually set at 45,
change it to 47-50.

Hope this helps