Rainbird SST controller- display goes blank for one zone only
I have a Rainbird SST controller that is new. I had wires coming in from the wall with no controller and took a chance and wired it up.
One wire - no matter what zone on the controller that I hook it to will not power on a zone of sprinklers. When operating manually or automatically with the controller. When that zone is selected- the proper info shows in the display and then the display will go blank. After a couple of seconds the info will display again, and then the display will go blank again.
Any ideas?
Thank you!