Modern irrigation controllers can detect some electrical problems and display a fault or station error. The message is useful, but it does not by itself identify which component has failed.
Common causes of a station fault
- Shorted or failing valve solenoid
- Damaged field wire
- Wet or corroded wire splice
- Incorrect wiring at the controller
- Controller station-output problem
Why replacing the controller may not help
If the fault is in the buried wiring or valve solenoid, installing a new timer leaves the underlying problem in place. Electrical testing can isolate the circuit before parts are replaced.
Intermittent faults can be harder to find
A connection may work when dry and fail after rain or irrigation. Wire tracing, resistance testing, and inspection of valve-box connections can help narrow down intermittent problems.
Bloomfield Hills Irrigation troubleshoots controller faults, solenoids, valves, and low-voltage irrigation wiring. Call or text (248) 970-0700.
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