At the point when a solenoid valve neglects to close it is quite often in light of the fact that something is stuck inside it. This may be a grain of sand, a little twig, a creepy-crawly, or even a minor snail. To fix the valve you have to dismantle and clean it. At the point when a valve neglects to open it is generally because of an awful solenoid or terrible wiring, despite the fact that in uncommon cases a grain of sand stuck inside the valve or a tore stomach inside the valve. The accompanying guidance advises how to dismantle, clean, and examine the programmed valve.
To clean the valve:
As you dismantle the valve make certain to take note of how all the parts fit together so you can get it back together accurately! I unequivocally recommend you make a sketch and take notes. Each brand and model of the valve is marginally extraordinary. The valve appeared in the photographs here is an enemy of siphon type valve, which is a sort normally utilized on home sprinkler frameworks. The top structure on the correct side of this valve is the counter siphon gadget.
Expel the solenoid from the valve. Most solenoids unscrew counter-clockwise to expel. While evacuating the solenoid watch that the spring stacked unclogger inside it doesn't jump out and fall into a mud puddle. On most more up to date valves, the unclogger is held "hostage" so it won't drop out when the solenoid is evacuated, however here and there even those ones come free. When the solenoid is expelled, push in on the finish of the spring-stacked unclogger in the solenoid. It should spring tenderly pull out when discharged, and it should slide in and out easily when squeezed a few times in succession. In the event that the unclogger doesn't move effectively and easily, supplant the solenoid; it is harmed and can't be fixed. Try not to apply any oil or ointment to the solenoid unclogger, on the off chance that it is staying it isn't repairable, supplant it.
Expel the valve cover, most are held set up by a few metal screws. A few models of valve have tops that screw off like the highest point of a container, turn counter-clockwise (lefty loosey) to expel this sort of cover. You may need to utilize a lash wrench to evacuate the container top style covers. All valves have a spring under the top, don't let it drop out into the mud! Evacuate the spring and put it in a safe spot.
The above information is provided by the irrigation valve manufacturer.