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Beoordeeld door Tom ReillySenior Editorial Reviewer — Roofing, Carpentry & General Contracting
Who to call · Hilversum

One irrigation zone won't turn on even though others work fineHilversum, Noord-Holland

When every other sprinkler zone fires on schedule but one stays dead, the problem is isolated to that zone's valve, wiring, or solenoid — not the controller or water supply. A stuck diaphragm, severed low-voltage wire, burnt solenoid coil, or a debris-clogged valve are the usual culprits. A landscaper or irrigation technician traces the circuit from the controller to the valve box, tests solenoid resistance with a multimeter, inspects the diaphragm for tears or mineral buildup, and either repairs or replaces the faulty component to restore full coverage.

Who to call

For this problem in Hilversum, call a: Hovenier

Vind een Hovenier in Hilversum

Symptoms to look for

  • One zone shows no sprinkler activity while all other zones run normally
  • Controller display indicates the zone is active but no water flows
  • A faint click or hum from the valve box but heads don't pop up
  • Dry brown patch on the lawn matching the outline of the dead zone
  • Manually turning the solenoid bleed screw produces weak or no flow

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