This isn't the first time I have struggled with one of these controllers. Our company Kone tool does not support them so I'm mostly guessing, I just wanted to see if the solution jumps out at someone.
It's a 2 stop front and rear, bottom floor is the front and top floor is the rear. When it runs to the top floor, the doors open. Half the time they open wait for door time, close and it continues to run. But the other times they either close immediately after reaching full open or don't quite get full open, then close and the car is out of service. No car calls, no hall calls until inspect or power is cycled.
When I got there it was stopping 3" low and doing this, the level up switch was stuck, I replaced it but it does the same thing only at floor level.
Any thoughts appreciated.