Find the cause first
Diagnose irrigation problems with confidence
Start with the symptom, run a few focused checks, and identify the most likely failure before replacing parts.
Start with what you can observe
- Which zone or component is affected?
- Is water flow weak, uneven, leaking, or completely absent?
- Did the issue appear suddenly or worsen over time?
- Does the controller show an error or behave normally?
Core diagnostic paths
No water
Check scheduling, wiring, solenoids, valves, and supply pressure.
Low pressure
Look for leaks, clogged heads, valve restrictions, or excessive demand.
Wrong timing
Review programs, start times, rain delays, sensors, and controller settings.