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Rain Bird ESP-4TM Dead After Winter: Check Valve Bleed & Main Valves

System dead after winter. At valve, open bleed screw ½ turn — water should flow. If not, frozen line or main valve closed. If water flows, test controller voltage.

Irrigation: Rain Bird Drip Zone Runs Constantly: Diaphragm Replacement Needed; Hunter X-Core: System Won't Activate, Water Pressure Present But No Flow; Purging Irrigation System: Manual Valve Operation Guide; Hunter XC Controller Zone 6 Stuck On: Diagnosis and Repair; Sprinklers Won't Shut Off? Valve Stuck Open — Not Controller; Spring Restart: Sprinkler System Won't Pressurize After Drain; Irrigation Pump Runs But No Water at Valves—Master Valve or Pump Relay; System Won't Start: Controller, Wiring, or Valve Diagnosis; Sprinkler Head Won't Shut Off – Valve Repair Guide; Automatic Valve Won't Turn On: Zone 1 of 6 Dead

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