A sprinkler zone that will not shut off may have a mechanical valve failure or an electrical signal that never ends.
Common mechanical causes
- Stuck diaphragm
- Broken bleeder
- Broken or incorrectly positioned solenoid
- Dirt or debris inside the valve
Electrical causes
If a timer continues sending power when it is supposed to be off, or if more than one zone wire becomes energized, the controller or crossed wiring may be responsible.
Immediate response
Shut off the irrigation water supply if the zone will not stop and the valve cannot be controlled safely.
Frequently Asked Questions
Why does my sprinkler zone keep running?
Can a controller keep a valve open?
Should I shut the water off?
Professional Irrigation Service
Need help diagnosing your sprinkler system?
Hunter HydroTech provides residential and commercial irrigation repair, pump-system service, valve diagnosis, controller troubleshooting, backflow service, revamps and seasonal maintenance throughout Southeast Michigan.
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