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Reviewed by Tom ReillySenior Editorial Reviewer — Roofing, Carpentry & General Contracting
Who to call · Long Beach

Irrigation controller not turning onLong Beach, California

When your irrigation controller's display is blank or unresponsive, your entire sprinkler system is dead — zones won't run on schedule and your lawn dries out fast in summer. Common causes are a tripped GFCI outlet, a blown fuse in the controller, a failed transformer, or water damage to the control board. A landscaper or irrigation specialist can test the transformer output, inspect the wiring, and replace the controller or board if needed.

Who to call

For this problem in Long Beach, call a: Landscaper

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Symptoms to look for

  • Controller screen is completely blank — no backlight, no display
  • Controller powers on but buttons don't respond or zones won't activate manually
  • Sprinklers haven't run on their programmed schedule for several days
  • Lawn shows dry brown patches in zones that should be watered automatically
  • Controller displays an error code or flashes a warning light

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