I have a zone that is reflecting that it is open and it should be closed. I have perform a continuity test on each door and window sensor and they all check out OK.

I suspect it may be a wiring problem. What is my next step?

Help

Thread moved from forum help to electronics

If there is more than one line going to box from each device, disconnect one at a time from box, till it resets, the one that has to be disconnected from box will be the one with the short.
Run new wire for that one, or follow it, if possible to find the error spot and fix at that point