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Irritrol RD600 Time Blinks, Switches to OFF: Test by Disconnecting Zone 1 Wire

Manual Start Blinks Time Then Goes OFF

Disconnect wire from terminal #1. Try manual start Zone 1.

  • Still blinks/OFF → controller fault.
  • Runs normally → fault in Zone 1 wiring or solenoid.

Controller Repair

Remove panel (pull ribbon, snap hinges). In Arizona: Sprinkler World of Arizona (602-954-9022) repairs panels.

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