I have a Dover T4 with a dover door operator 1999 vintage and a Janis edge.
The door will close and then open 6 times. The 6th time the doors stay closed and the car will take off to the next floor and do the same thing. The Janis pana40 safety edge power supply edge has been replaced. It did not help.
Does anyone have any ideas what is causing this and how to fix it?