Controller
Model, app/controller online status, affected zone, and any error text.
Irrigation controller zone will not run
Use this flow when a controller is powered or online but one sprinkler zone does not water. It separates schedule and sensor checks from zone-specific physical faults.
Safety first: do not open energized enclosures, handle exposed wiring, bypass rain/freeze/leak/pump safety controls, or continue if there is flooding, unsafe pressure, or electrical damage.
What this flow is for
The controller appears powered or online, but one zone will not run. The first split is whether the failure is schedule/sensor related, affects every zone, or is isolated to one zone.
First safe checks
- Confirm the controller display or power indication and app status.
- Check that the water source is on and there is no visible leak or flooding.
- Verify date, time, program days, start time, runtime, and seasonal adjustment.
- Check sensor status without bypassing it.
- If safe, run the affected zone manually and observe flow.
Best evidence
Capture this before changing settings
Manual run
Whether other zones run and whether the affected zone opens, flows weakly, or stays dry.
Recent changes
Schedule, sensor, water supply, landscaping, firmware, wiring, or weather changes.
Likely causes
Most likely problem buckets
Schedule or sensor
The clock, program, seasonal adjustment, or a rain/freeze sensor prevented the run.
Zone-specific fault
A valve, solenoid, field wire, or valve box issue affects one zone.
Water or pressure
The water source, pump, pressure, or plumbing serving the zone is unavailable.
Controller status
The controller or app is offline or showing stale state.
Next safe steps
Take one step at a time
ACT-IRR-001
Record the model, affected zone, errors, and whether other zones run.
ACT-IRR-002
Verify clock, program, seasonal adjustment, and sensor state. Do not bypass safety controls.
ACT-IRR-003
If safe, run the zone manually and watch the valve box, water flow, leaks, and pressure.
ACT-IRR-004
Stop and prepare a technician handoff for wiring, electrical, pump, valve, plumbing, leak, or pressure work.
Best follow-up ask
Does manual activation fail for only one zone, or do all zones fail?
When to stop and hand off
Escalate when safe checks do not restore the zone or the evidence points to model-specific wiring, electrical, pump, valve, plumbing, leak, or unsafe-pressure work.
Source provenance
Reviewed against official vendor guidance
This vendor-neutral flow was checked against Rain Bird and Hunter controller troubleshooting material. Product-specific instructions still take precedence for the installed model.
Map the equipment
Use private discovery to record the controller, zone, evidence, and handoff without placing account secrets in public chat.
Open private discoveryContinue in support chat
The support assistant can ask the next question and create a technician-ready handoff when the issue crosses into physical work.
Open support chat