16 jun. You have a worn out valve. Either the diaphragm, solenoid, or both. Buy an identical valve and swap the whole top half. Your controller is fine. If a zone keeps running after it's set to turn off, a component of the system is clearly not working properly. It could be as simple as a scheduling mistake. From an Irrigation Professional-Where to start if your sprinklers or drip system won't shut off, This is what we do first to stop the water.
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