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Hardie HR-6100 Cycles Through All Programs in Seconds—Controller Failure

HR-6100 runs all 6 run times sequentially in seconds (both Program A and C). Manual works fine.

Reset Attempt

Remove battery
Disconnect power 1 minute
Power on WITHOUT battery
Test

If Persists

Controller microprocessor failed. Hardie = Irritrol now. Replacement: Irritrol Rain Dial 6-station (~$100-120). Available at any irrigation supply store.

Don't repair—obsolete technology.

Irrigation: Hardie HR‑6100 Controller Dead – Can Orbit 27956 Replace It?; Irritrol RD-600 Only Outputs 15VAC: Controller or Wiring Fault?; Hunter EC Controller Stations 1&2 Not Working: Power Surge Damage; Rain Bird Timer Flashes FU5: Blown Fuse or Solenoid Short; Hardie Rain Dial 1993: Zones 6 & 7 Run Together—Crossed Wire or Controller; Testing a Rain Bird ESP-6TM Controller After Lightning Damage; Hunter Controller Zone Running Too Long: Programming Error or Hardware Failure?; Hardie HR-6100 Zone No Water – Diaphragm Likely Faulty; All Stations Dead After Head Replacement: Check for Cut Wire; Toro Vision II Plus: Station Run Time Dial Spins Without Effect

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