You don't want to enable the door sensor setting when the sensor is not in place.
By default, the door sensor is in open state. Removing the door sensor will tell the controller that the door is always opened so it will keep trying to close it.
You'd want to put the sensor back, test its state first i.e. close the door and it reads close, open the door and it reads open.
If you don't install the door sensor, disable the door sensor settings.
