Solenoid coil on desired station or zone may be faulty

• Check the solenoid coil on the station in question
  • A good solenoid coil should read roughly 33Ω on a multimeter

There may be a break in the field wiring

• Test both the field and common cables leading to the station in question for continuity

Check for fault indications on the display or smartphone app for your Irrigation Controller

• Depending on your Irrigation Controller, there may be a fault indication displaying on the on-board display of your controller, or within any associated smartphone apps you are using, such as iGardener™ or Holman Home