Hardie HR-6100 Controller: System Won't Shut Off

A Hardie HR-6100 controller cannot stop the sprinklers; water runs until the main is shut off.

Quick Fixes

Flow Control Knob: On each valve, ensure the flow control is no more than halfway open.
Valve Disassembly: If flow control doesn't help, turn off water, remove valve bonnet, clean all parts, inspect diaphragm for tears, and reassemble. Debris often prevents full closure.

Most valves can be rebuilt by replacing the solenoid and diaphragm.

Irrigation: Troubleshooting a Sprinkler Zone That Shows Active but Delivers No Water; Sprinkler Station Won’t Shut Off – How to Turn Off Water Supply; Rain Bird ESP-LX "Fault 4" Code: Zone Skipped; Fixing a Sprinkler Valve That Won't Shut Off: Diaphragm Replacement; Sprinkler Solenoid Testing After Controller Voltage Confirmed—Ohmmeter Method; Why a Sprinkler Head Leaks When the System Is Off: Diaphragm Wear; Hardie Sprinkler Zone Won't Shut Off: Replace Solenoid or Diaphragm; Choosing a Sprinkler Valve for Low-Pressure Tank Drainage; Sprinkler Zone Won't Shut Off? Troubleshoot a Stuck Valve; Weeping Valve: Cleaned Diaphragm, Still Leaks—Replace Valve

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