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Rain Bird ESP Dead After Winter: Power Cycle and Wire Check

ESP controller display works but no zones run after winter. Standard reset + wire check.

Reset

  1. Remove power (unplug/breaker) + battery for 3 minutes.
  2. Restore, test.

Wire Check

  • Controller terminal strip: all wires tight?
  • Valve boxes: common wire splices solid? (Winter corrosion common.)

Multimeter Test

Run station 1, measure 24VAC at controller terminal 1 vs C. No voltage = controller dead. Voltage OK = field wire/valve issue.

Reset first. Winter kills controllers via condensation on boards.

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