Cut Wires, Failed Solenoids, Controller Problems, and Valve Failures

When one sprinkler zone will not turn on, the problem may be electrical or mechanical.

Common causes

• Cut zone wire
• Failed solenoid
• Bad controller station output
• Crossed wiring
• Incorrect resistance or amperage
• Valve stuck closed because of debris or internal damage

Manual compared with timer testing

Hunter HydroTech first tests whether the valve can be activated manually through the solenoid, then checks operation from the timer.

Electrical testing

Voltage, amperage, ohms, and resistance can help identify a short, open circuit, bad solenoid, or controller problem.