Troubleshooting Sprinkler Control Valves

July 31, 2020 by Billy Manning


Over the past week, some of our customers have had a problem troubleshooting a sprinkler control valve. This problem occurs for several reasons. Let's take a look at them below.



Look At The Nonsense.

How do I know if my sprinkler solenoid is bad?

If your magnet is defective, the water pressure in the sprinkler chamber will not change and the valve will not open.
  1. Disconnect the water supply.
  2. Open the magnet housing and check the piston.
  3. Place the magnetic plunger back into the housing.
  4. Turn on the water and check the spray arm.

If the valve doesn't open or opens completely, start with the obvious just to be sure. I know every idiot knows this better, but even we professionals regularly forget something really simple and obvious.

Tip. On some of these common valve models, you will find photographs of the various valve controls (such as flow control, on / off lever, and bleed screw) that are referenced in this article on this page. : Anti-siphon valves with Share label.

Manual Performance Test

Try opening the valve manually using the on / off lever located on the top of the valve body. Some valves use an air vent screw to manually open them. Therefore, if you do not see a lever labeled On / Off or Open / Close, look for a screw. Usually the screw has a button handle so you can turn it by hand. Do not completely remove the drain screw! Just turn it 1 - 2 by 1 full turn, water will pour out from under the screw and the valve should open. Some the valves have both a bleed screw and an on / off lever. I usually use the bleed screw on these valves because I have found it works best when the valve is stubborn. If the valve opens correctly and completely with the manual opener or drain screw, the problem may be in the electrical system. If the valve does not open fully when using the manual open function, skip the next section on electrical problems.

Basic Electrical Tests

If you do not have a valve actuator tester, start by making your own valve actuator using three nine-volt batteries. On my website you will find detailed instructions on how to make a magnetic valve actuator for irrigation (it's simple and only takes about 2 minutes!)

Valve Cleaning And Repair

If you checked the controller and cables and they are ok, the problem is with the valve itself. You have two options: remove and replace the valve, or disassemble the valve to check for problems. What nIt depends on which path is easier for you. I usually try to clean the valve instead of replacing it here.

Should sprinkler valves be open or closed?

If your magnet is defective, the water pressure in the sprinkler chamber will not change and the valve will not open.
  1. Disconnect the water supply.
  2. Open the magnet housing and check the piston.
  3. Place the magnetic plunger back into the housing.
  4. Turn on the water and check the spray arm.

Valve Replacement: Removing and replacing a valve can be challenging when the valve is fully installed. In essence, this is an exchange. Take a picture of the old valve before removing it, pull it out and replace the new one. You will most likely need to cut the pipe from the outlet side of the valve so you can rotate the valve body to unscrew and remove it from the inlet pipe. Some valves are installed so close together that you have to cut the pipe at the inlet and outlet. This applies in particular to anti-siphon valves. If the old valve is defective, install a new one in the same place. After all, you need to fix the pipe if you cut it. If the pipe is PVC, they make special pipe repair fittings that make the job easier. Remember to make all wired connections completely waterproof!

Note: Many anti-siphon valves are installed incorrectly. Even sprinkler installers do not care what they need to provide If installed correctly, incorrect installation may cause problems with the valve. Read the article on how to properly install the anti-siphon valve so you can use it correctly this time!

sprinkler control valves troubleshooting

Valve Cleaning and Repair: Most people try to fix a valve instead of replacing it. I do think repairs are often easier at this point. If you continue to disassemble the valve, pay attention to how all the parts fit together so that you can reassemble it after assembly. Tip: Take a picture of the valve and how the parts are connected during disassembly!







Related posts:

  1. Control Panel File Name

    Windows 10 still contains Control Panel. Some settings appear only in Control Panel, some in the Settings app, and some in both. Here's how to find the Control Panel, which is a little more hidden than in Windows 7. In Windows 7, you can click the Start button and then Control Panel. In Windows 8 and 8.1, you can right-click the Start button or press Windows + X and select Control Panel. None of these methods work on the latest version of Windows. However, launching Control Panel in Windows 10 is very simple: Click the Start button or ...
  2. The User Accounts Control Panel

    Introduction In Windows 7, anyone using your computer can have their own account. This way, everyone can set their own preferences and set up parental controls to restrict the types of games and programs your kids can use. In this lesson, you will learn how to create new user accounts, change account settings, and set up parental controls for your children's accounts. Set up multiple user accounts Optionally, you can have one account on your computer that anyone can use. However, having multiple accounts has some advantages. When each user has their own account, ...
  3. Access Task Manager Via Control Panel

    Task Manager is a useful application created by Microsoft to help users of the operating system. It contains and tracks information about the processes, applications and services running on your computer, as well as information about I / O devices, registered users, etc. Microsoft understands the importance of Task Manager, so Windows 10 users can open this app in several ways. You may be familiar with the keyboard shortcuts used to open it, but sometimes it can be helpful to learn another method or two. When your keyboard stops working, you won't be able to use keyboard shortcuts, ...
  4. How To Change User Account Control In Windows Xp

    User Account Control was first introduced by Microsoft in Windows XP, and the setup wizard created accounts as local administrators. Since then, many updates have been added to make it a newer version like Vista and Windows 7. User Account Control is a security infrastructure technology introduced by Microsoft Windows Vista and Windows Server 2009. In Windows 7, however, there are also better versions Windows Server 2009 R2. The goal is to improve the security of Windows by adding application software restrictions to the standard user rights. This has limits as long as the agency does not increase its ...
  5. Tools And Troubleshooting

    Network troubleshooting tools are required for every network administrator. When launching into a network space, it is important to have a set of tools that you can use to troubleshoot in various network conditions. The use of certain tools may be subjective and left to the discretion of the engineer. However, the choice of tools in this article was made based on their generality and general use. This article describes ten of the best tools that you can use to troubleshoot most network problems. 10. Ping The most commonly used network tool is the ping utility. ...
  6. Troubleshooting Web Connections

    Help! I cannot access my site! A common cause of frustration (and often panic) for website owners is the loss of Internet connectivity from their websites. We all know the pride and joy of visiting when we encounter the “Error: Page not displaying” message or an equally frightening message. Aside from the obvious problem of visitors being unable to see your website, connectivity issues can mean you won't be updating the website, receiving and sending emails, processing non-customer orders, etc. . If you find that you are having trouble accessing your site, don't panic. It's important ...
  7. Guide To Troubleshooting

    measures. B. a specific website that is not connected to the network. The best way to find out? Ask these pertinent questions and then look for additional information from various sources, for example: For example: Step 3: Reproduce Problem, Develop Root Cause Hypothesis Now that you have some basic background information, it's time to tackle the problem. If you reproduce the issue, you just need to make sure you can fix the same error that the user reported. You can do this at the physical location of the problem, or via a remote desktop / remote control app. ...
  8. Soy Candlemaking Troubleshooting

    Super Creamy Soy Wax is our top selling wax because it is very easy to use and works exceptionally well when used correctly. I am also an avid candle maker and have made hundreds of soy candles using Super Creamy Wax. We believe this wax has been rigorously tested. However, we strongly recommend that you test the products on a small scale first to ensure you get the correct results. Since our products are natural, there may be differences in the use of different waxes and different scents. You may behave differently than in the past, so ...
  9. Troubleshooting Apple

    “It works” is the ideal. The reality is, "It only works until it stops working — usually when you need it most." Like any complex and complex machine, the iPhone can give you a lot of problems. However, in most cases, troubleshooting is straightforward. Before calling Apple Support or visiting your local Genius bar, you can try to get your devices and services back online. How to restart, restart and restore your iPhone? It's a cliché for some reason, but sometimes just restarting your iPhone can fix issues ranging from low battery power to poor Wi-Fi and ...
  10. Troubleshooting Old Furnace Problems

    A good gas stove troubleshooting guide will help you determine what is wrong with it by its symptoms. We do it here with clear and simple information and video links where useful. Once the problem has been diagnosed, our Gas Oven Repair Cost Guide will provide an estimate, help in deciding whether to repair or replace the oven under the circumstances, and advise on how to find an agent. repair and qualified service. Professional installation Troubleshooting common gas oven problems Every year, thousands of homeowners ask, "What's wrong with my gas stove?" If you find yourself ...