Overlapping programs, a controller feature, crossed station wiring or a valve stuck open can make zones overlap. Some controllers intentionally allow simultaneous operation.

Check the controller program first
Write down the station numbers shown on the timer. Multiple program start times, an intentional simultaneous-zone feature, crossed station wiring or a valve stuck open can all create overlap.
Inspection and repair steps
- Run one station manually and observe which zones start.
- Check program start times and controller features, then inspect wiring and valves.
- Correct the overlap or faulty valve and verify each zone runs and shuts off separately.
Read about sprinkler valve and solenoid repair or browse sprinkler and drip irrigation services.
Watering and maintenance resources
UC ANR recommends testing automatic valves and fixing leaks. For a Temecula landscape, avoid lengthening or duplicating programs just to correct dry patches; verify coverage first.
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
- Should I Repair or Replace My Sprinkler Controller?
- How Do You Repair a Broken Underground Sprinkler Pipe?
Sources: UC ANR landscape water conservation Q&A · Rancho Water efficiency tips · Hunter simultaneous-zone support · 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