Can you give us more details on the controller?
Is there a card rack or is it all relays? Can you post a picture? And Dover was pretty good with labeling inside the controller. There is usually a label with the job number as well as the drawing sheet numbers. Is there a chance it is still there?
Just so you know if you don't already TKE has prints for Dover elevators. TKE will only sell the prints to the customer.
World Electronics sells and repairs these boards.
So looking a the card rack it appears the card rack has the follow boards;
Power
Door
Car
Top & Bottom
And an Intermediate board for each floor other than the top & bottom floor.
There are test points but without the proper prints its hard to diagnose. Can you ask your supervisor to speak with the building owner.
Any chance you can ride on the car top and check the hatch door locks are not breaking?
The boards are all logic base. (Gates, "And, Nand, Nor, OR)
no processor. Dover's answer to Otis B Base. If you get the complete set of prints for this, it will have a logic print as well as the straight line. You troubleshoot the logic print with a logic probe, although most people now-a-days just change out the boards. Reading those Boolean logic diagrams and probing those pins with a logic probe is not a fun thing, plus it takes a hell of a lot of understanding.
You might just want to send the boards to Access and have them repair them. 301-645-1733
not seeing a the call cancellation/ stopping circuit
But, there have been people who have tried to solicit information that are not elevator professionals. I generally look at the previous post to form my opinion that you are indeed a elevator professional. Unfortunately, this is your first post. I am willing to help if you will send me a PM
"What type of key do yo use to open the car gate"?