Surge Protection for Irrigation Controllers: No Guarantee

Even with surge protectors, lightning can damage controllers. No product guarantees 100% protection.

Practical Steps

Unplug before storms if home.
Hunter Pro-C holds program 24+ hrs without power.
Ensure controller on GFCI outlet.
Old mechanical timers more lightning-resistant but banned in some areas (fire risk).

Surge protectors help but fail on direct/near strikes. Budget for occasional replacement in high-lightning areas.

Irrigation: Irritrol RD-600 Only Outputs 15VAC: Controller or Wiring Fault?; Hardie Irrigation System Runs Continuously: Valve vs Controller Diagnosis; Hardie Controller Manual Station Error: Replace Panel or Upgrade to Rain Dial; Hardie 446PR Display Garbled: Reset or Replace; Hardie Total Control TC-15B "Error - 1" After Freeze; Resetting a Hardie Rain Dial Controller to Factory Defaults for Manual Run Limits; Adding Stations to a James Hardie (Irritrol) Controller: Understanding Station Limits; Hardie/Total Controller Transformer Replacement; Hardie HHA 11272 Controller Won't Enter Programming Mode; Hardie HHA 11272 Controller Replacement Sources

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