Start with what the system is doing—not the part you plan to replace.
Choose the closest observable symptom. Each guide narrows the fault from system-wide to zone, valve, wiring, pipe, or head level.
One Sprinkler Zone Not Working While the Others Are Fine
Use this symptom-first test to separate a controller, wire, solenoid, valve, or water-flow problem without digging first.
- Typical time
- 15–35 min
- Tools
- Screwdriver; optional multimeter
Low Water Pressure in One Sprinkler Zone
Find out whether weak spray comes from clogged nozzles, a partially open valve, an overloaded zone, or a hidden lateral-line leak.
- Typical time
- 20–45 min
- Tools
- Small brush; pressure gauge optional
Sprinkler Head Leaking When the System Is Off
Tell normal low-head drainage from a valve that is seeping continuously, then choose the correct fix.
- Typical time
- 10–30 min
- Tools
- Timer; dry marker flag
Sprinkler Zone Won't Shut Off
Stop the water safely and determine whether the controller or a mechanically stuck zone valve is responsible.
- Typical time
- 10–25 min
- Tools
- Screwdriver; valve-specific parts if servicing
Sprinkler Controller Says Running but No Water Comes Out
Use the number of failed zones and the sound at the valve to narrow down power, sensor, common-wire, master-valve, and supply faults.
- Typical time
- 15–40 min
- Tools
- Screwdriver; optional multimeter
Sprinkler Head Won't Pop Up All the Way
Separate dirt around one riser from a zone-wide pressure or flow problem before replacing parts.
- Typical time
- 10–25 min
- Tools
- Soft brush; small hand trowel