A sprinkler system with a zone that will not turn on or off has either a malfunctioning timer, zone valve or a short in the low-voltage wire. To help draw out air, locate the bleeder valves on all the radiators in the affected heating zone. Not sure where to start to get the two sprinkler heads working. In one zone I have six sprinkler heads. Two of the heads will not work. If you are unsure about which radiators belong to each zone… If there is a non-working zone, check for an … Broken sprinklers are usually easy to find. Like a broken pipe, a broken sprinkler head robs the rest of the sprinkler system of the necessary flow and pressure to function. My assumption is that there is a break in the main PVC line after the last working … This happens when an air bubble blocks the pipes. https://happyygarden.com/sprinkler-system-low-pressure-one-zone Broken spray heads: If you notice that your sprinkler heads don’t pop up … We swap Zone 3 and Zone 4, and afterwards Zone 3 is still not working. Example 2: Zone 3 is not working. I switched the wires from this zone to another and the back yard still doesn’t turn on but the front yard connected to the back yard zone … If you suspect that a broken sprinkler is causing your sprinkler system to malfunction, turn on the water supply and insect each sprinkler. If the zone stopped working, there might be an issue in the voltage. Sometimes, a heating zone will not work properly because water cannot move through the baseboard radiators. Know that the water system is divided into zones; each has its valve controlling a sprinkler head. https://www.familyhandyman.com/project/fixing-sprinkler-systems My sprinkler system has been working fine for a while, but one of the zones (back yard) stopped working. They are completely dry, even in the flex lines they are attached to. Zone 2 of my irrigation system has 6 pop-up sprinkler heads but the last two do not pop up, nor is there any water coming from them at all. Not sure if it is the sprinkler heads. One sprinkler zone not working Got a zone that is not turning on? By process of elimination we can determine that the issue lies in the Wiring to Zone 4 or the valve/solenoid on Zone 4. Example 1: Zone 3 is not working. All you need to do if figure out if it is the timer, wire, or valve at fault. An … We swap Zone 3 and Zone 4, and afterwards Zone 4 is not working. Fortunately, you can troubleshoot your lawn sprinkler problems easily. 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