A sprinkler solenoid is the small electrical part on a valve that tells the valve when to open and close. When it works correctly, your controller sends a signal, the solenoid activates the valve, and water flows to that zone.
Common reasons a solenoid fails
- Burned-out coil from age or electrical stress
- Corrosion from moisture, dirt, or underground exposure
- Loose or damaged wiring at the valve or controller
- Debris inside the valve that prevents proper movement
- Wear and tear from repeated cycling over time
When a solenoid starts to go bad, you may notice one zone not responding, a valve that stays open, or irregular watering. Because the problem can look similar to wiring or valve issues, it helps to have it checked by a professional.
Dallas Landscape & Irrigation can inspect the solenoid, valve, and wiring to find the exact cause and restore normal operation. If you suspect a problem, request an estimate to get started.