Richdel 476PR No Display: Power Cycle Without Battery, Then Replace

No LED, power OK. No fuses. Remove battery, power off 1 min, power on without battery. If no display → replace controller.

Irrigation: Richdel 446PR One Zone Dribbles – Check Valve Obstruction or Leak; Hunter EC Controller – Accessing Wiring Compartment; Rain Bird ESP-TM Clock Display Shows Only Hours, Resets to Zero; Richdel 446PR Hybrid Controller – No Valves Open; Richdel 476PRI Display Fading: Replace with Rain Bird ESP Modular; Extending Irritrol RD-900 Transformer Power Cord—Wire Gauge Guide; Richdel 446PR "FUSE 7 16" Error—Controller Replacement Time; Richdel 446PR Manual and Zone 6 Troubleshooting; Rain Bird ESP-6TM Dead After Wrong Fuse Installation: Controller or Transformer?; Richdel Timer Switches Malfunctioning: Replace Controller

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