Sprinkler Head Works Manually but Not Electrically – Bad Solenoid

One station operates manually at valve but not from controller. Wiring checks out.

Cause

Solenoid likely failed. It's the cylindrical part on valve where wires connect.

Replacement

1. Identify valve make/model.
2. Buy exact replacement solenoid.
3. Shut off main water.
4. Unscrew old solenoid; watch for plunger/spring.
5. Install new; use waterproof wire nuts.

Send photo if unsure of valve type.