Couldn't agree with you more on the prints. Unfortunately, I am not having much success in finding some prints but am hopeful that some prints will be sourced . My elevator service company tried to find some prints but were also unable to find any. They came up with a generic set which were of no use to them in finding the issue. So that leaves me in a position to do what I can to get the issue resolved. I am a fairly good tinkerer and have managed to clean up all the contacts on the relays and also repaired a couple of switches on the door mechanism. I have also tested the three timers and they are working correctly.