OpenSprinkler › Forums › Hardware Questions › OpenSprinkler › Expansion Board Activates All Zones at Once › Reply To: Expansion Board Activates All Zones at Once
June 8, 2016 at 4:58 am
#42897
pb
Participant
Double check you have the expansion cable around the right way at both ends. I think I vaguely remember someone having the same issue caused by incorrect orientation of one end.