OpenSprinkler Forums Hardware Questions OpenSprinkler Valves not actually being stopped by the controller Reply To: Valves not actually being stopped by the controller

#43077

Ray
Keymaster

Are you using a 24VAC transformer? If your transformer outputs DC voltage, that would result in the symptom you observed — basically, OpenSprinkler AC must be powered by a AC transformer (which means the output voltage is AC, not DC). If you power it with a DC transformer, it will turn on the valves but not turn them off. This is just due to the way triacs work.

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