I thought that this would be a no brainier problem, but surprise, surprise. This is an older Dover hydro, 2 stop. No serial link, relays only, they are on a swing panel off the main controller. I forgot to look at the exact model before I left today. The problem lies with the photo eyes, replaced the Duo-path eyes with new tektronics eyes. They work ok, wired correctly and all that. If you reverse the door 3 or 4 times, the unit shuts down. The controller is a long way from the elevator, so I can't watch what's happening. But, when I go to the controller, the SE relay is picked and stays picked. There is a timer board labelled OOT. Is this an out of service timer? Don't have any prints for this job. I put a piece of paper between the latching mechanism and coil thinking it might be residual magnetism...no luck. Any help will be greatly appreciated. Thanks!
Last edited by Elevatorfella; 09/17/13 12:23 AM.
