Orbit 4-valve controller not running valve #1
I have an Orbit 4-valve controller, Model # 57894, that I bought a few months back. Today I was tuning some sprinkler heads and tried to run valve 1 manually, and it would not work. The other three valves came on just fine on both manual and auto. I switched the wire for valve 1 to the slot in the controller for valve 2 and ran that valve manually, and it came on just fine. This controller is kept inside and has worked fine until today. Is there a known fix for this, or do I need to replace the controller completely?