A valve manually opened, debris or a damaged diaphragm in the valve, or a controller/program problem can keep water flowing. If water continues with the controller off, a mechanical valve problem is more likely.

Stop the water, then find the cause
Turn the controller to off and observe the water. If the zone keeps spraying, close the irrigation shutoff if you know its location and can do so safely. A valve held open by debris or a manual bleed setting is different from an extra scheduled start time.
Inspection and repair steps
- Confirm whether the controller is still calling for the station.
- Inspect the valve manual controls, solenoid and diaphragm.
- Clean or replace the failed valve component, reopen water and confirm shutoff.
Read about sprinkler valve and solenoid repair or browse sprinkler and drip irrigation services.
Watering and maintenance resources
UC ANR advises checking that automatic valves function and repairing leaks at valves and connections. Rancho Water likewise includes leak repair in its outdoor efficiency tips.
Cost and next step
The repair cost depends on the fault, replacement parts, access and any digging or restoration needed. Ask for the proposed scope and estimate before work begins. Our sprinkler repair cost guide explains the main factors.
Related homeowner questions
Sources: UC ANR landscape water conservation Q&A · Rancho Water efficiency tips · Hunter valve troubleshooting · Hunter controller troubleshooting.
Schedule sprinkler service
Tell us the symptom, when it occurs and which zone is affected. We can discuss the inspection and repair options for your Temecula or Murrieta area property.
Call (951) 252-4822