OpenSprinkler Forums Hardware Questions Expander zone stuck on “open” Reply To: Expander zone stuck on “open”



If you have an AC-powered OpenSprinkler but you are using a DC power adapter (i.e. adapter outputs DC voltage instead of AC voltage) that can result in this symptom.

If that’s not the case, and if this is just happening on one zone but not all zones, then it’s likely that zone is defective. You should file a support ticket and arrange for a replacement.