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Why Your Sprinkler Zone Isn’t Working — Surprising Valve & Wiring Issues

When one sprinkler zone refuses to turn on, frustration usually follows. Brown patches appear, water coverage drops, and timers seem useless. 

Homeowners searching for sprinkler repair in West Palm Beach often discover the issue isn’t the entire system—it’s a hidden valve or wiring problem affecting just one zone. The good news is that these problems are common and relatively easy to fix. 

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Common Reasons a Sprinkler Zone Stops Working 

1. Faulty or Stuck Valves

Sprinkler valves control water flow to each zone. Over time, dirt, sand, or debris can cause a valve to stick shut. In some cases, internal parts wear out due to Florida’s heat and water conditions. A stuck valve stops water completely, even when the controller sends the signal. 

2. Damaged Wiring Underground

Each zone relies on electrical wiring to communicate with the controller. Shifting soil, root growth, or past repairs can damage these wires. When the signal doesn’t reach the valve, the zone stays silent. Wiring issues often go unnoticed without the use of proper testing equipment. 

3. Controller Connection Problems

Sometimes the controller itself works fine, but loose terminals or corroded connections interrupt the signal. This problem can mimic a valve failure, confusing homeowners who attempt to diagnose it independently. 

4. Water Pressure Imbalances

Low pressure caused by leaks or partial blockages may prevent a zone from activating fully. The system tries to run, but water never reaches the heads. 

When to Call a Professional 

  • Accurate Diagnosis Matters: Valve and wiring problems can appear similar on the surface. A professional can test electrical signals, inspect valves, and pinpoint the real cause without unnecessary digging.
  • Long-Term Reliability: Quick fixes may provide temporary relief, but expert repairs restore proper operation and prevent recurring failures.

Reliable Sprinkler Repair in West Palm Beach 

A non-working sprinkler zone doesn’t have to mean a failing system. With the right diagnosis,  can quickly return to full coverage. For dependable service and expert care, contact O’Hara Landscape.

Call O’Hara Landscape today to schedule your sprinkler inspection and get your system running smoothly again.

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O'Hara Landscape & Maintenance Inc.

Since 1973, O'Hara Landscape and Maintenance Inc. has been providing reliable landscape beautification to thousands of residents in community associations and commercial properties in West Palm Beach and Palm Beach County Florida.

O'Hara Testimonials

  • Rick Walker

    The landscape guys came, walked me through what was exactly wrong and explained to me what needed to be done. They were informative and patient with me. I will continue to use this company and look forward to building my dream landscape with them!

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