How to Troubleshoot a Faulty Irrigation System Before Calling for Service.
Maximize your irrigation system's efficiency with our troubleshooting guide. Find out how to resolve common issues on your own before contacting a service provider.

Maintaining a lush, green lawn requires more than just regular mowing or occasional fertilizing. One of the most critical components of lawn care is an efficient irrigation system. When that system fails, it can disrupt the health of your landscape, causing dry patches or overwatering in certain areas. Before you call for professional irrigation system service, there are several troubleshooting steps you can take to identify and possibly resolve the issue yourself.
Whether you're a homeowner using lawn mowing services regularly or managing your own lawn care Vancouver, understanding how your irrigation system works and how to check it for common problems can save you both time and money.
1. Check the Controller Settings
Begin with the brain of your irrigation system—the controller. Ensure it's properly plugged in and powered. Review the programming to confirm watering times, dates, and zones are set correctly. A power outage or accidental button press could reset these settings. If the screen is blank or showing errors, try replacing the battery (if applicable) or resetting the controller.
2. Inspect the Valves and Solenoids
Valves control the flow of water to different parts of your lawn. A faulty valve or solenoid (the part that opens and closes the valve electronically) might cause one or more zones to stop working. Check for any visible damage, loose wiring, or debris clogging the valve. You can also manually open the valve to see if water flows; if it does, the issue may be electrical.
3. Look for Visible Leaks or Broken Sprinkler Heads
Walk around your yard and inspect all sprinkler heads while the system is running. Look for geysers, poor water pressure, or water pooling in certain areas. These are signs of broken or clogged heads, which can easily be replaced or cleaned. Leaks in underground pipes may show up as soggy patches or unusually high water bills.
4. Clean or Replace Clogged Nozzles
Debris like dirt, grass clippings (especially after lawn mowing services), or insects can clog sprinkler nozzles, reducing water flow or causing uneven spray patterns. Remove the nozzle and rinse it under water. If it's damaged or too dirty to clean, replace it with a matching type.
5. Evaluate Water Pressure
If your entire system is underperforming, check your home’s water pressure. Low pressure can be caused by municipal supply issues, a partially closed main valve, or a leak. Use a pressure gauge to check the pressure at the spigot. For optimal performance, irrigation systems generally require 30–50 PSI.
6. Check for Electrical Issues
If none of the zones are activating, there could be a problem with the wiring or transformer. Look for broken or corroded wires, especially around the controller or valves. Turn off the power before handling any wires. If you’re unsure or uncomfortable, this may be the point to call a professional.
7. Inspect for Pest Damage
Sometimes the culprit behind irrigation problems is not mechanical but biological. Rodents, insects, or even pets can chew through wires or tubing. This is especially common in areas where pest control services aren’t regularly used. Look for gnaw marks or exposed lines.
When to Call for Professional Help
If you’ve checked all the above and still face issues, it’s time to contact a reliable irrigation system service provider. They have the tools and expertise to locate underground leaks, test electrical components, and restore your system efficiently.
Pairing professional lawn care in Vancouver with routine system maintenance ensures your yard stays healthy, hydrated, and beautiful throughout the year. Regular inspections, timely repairs, and integrated services like pest control and lawn mowing create a comprehensive care plan for your outdoor space.