This is an install schindler did 2 years ago. We took it over on maintenance and inspector wrote up door open/close buttons not fuctioning behind Fire Service panel. Found what appears to be missing wiring harness that connects fire service board in COP to main COP board. Having a hard time identifying what harness I need. Have tried going through Adams and they sent the wrong one and tech support never gets back with you. Any Suggestions? Thanks.

I am leaning toward the membrane pade possibly being defective. Will replace and see what happens.

you need to order th entire fire service panel.easy to change. i ill get you the part number