How does an Irritrol sprinkler valve work
Andrew Mccoy
Updated on April 04, 2026
Open the Manual Bleed Screw You will notice that the manual bleed screw is located towards the back of the valve near the flow control. To open the valve manually, twist the manual bleed screw counter-clockwise until the valve opens. It usually doesn’t need to be more than one-half turn.
How do you manually turn on Irritrol valves?
Open the Manual Bleed Screw You will notice that the manual bleed screw is located towards the back of the valve near the flow control. To open the valve manually, twist the manual bleed screw counter-clockwise until the valve opens. It usually doesn’t need to be more than one-half turn.
How do you reset Irritrol sprinklers?
Open the battery compartment and disconnect the battery. Press and hold the Manual button in and KEEP HOLDING IT IN while performing the next step. Reconnect the ribbon cable, then release the Manual button. Note: The display should now show 12:00 AM indicating the controller has reset.
How does a sprinkler shut off valve work?
A ball valve is open when the handle aligns with the water pipe under it where it is installed. If the handle is adjacent to the pipe underneath, a small hole in an interior ball is turned one-quarter turn to shut off the water flow in the system. … This process allows the sprinkler system to come on immediately.How do you test a sprinkler solenoid?
- Turn off the water supply to the irrigation system using an isolation valve.
- Disconnect the solenoid wires from the controller.
- Using and multimeter test the number of ohms through the solenoid. 20-60 ohms – Good. …
- If solenoid tests Good, then the solenoid is OK.
Why do sprinkler valves stuck open?
Air Trapped in the Valve: The valves may have air trapped in them. A small bubble of air becomes trapped in the tiny water ports of the valve, this stops the water from flowing through the port. Since the water flowing through the port is what holds the valve diaphragm closed, the valve stays open.
How do I turn off Irritrol valve?
- Grasp the body of the solenoid firmly and turn it counterclockwise at least a quarter turn. …
- Turn the solenoid back the other way to shut off the water supply.
How do I know if my sprinkler solenoid is bad?
- Never-ending water: The valve solenoid may get stuck open, allowing all or a trickle of water through at all times. …
- Water leaks: High pressure from a broken solenoid can put a lot of stress on your sprinkler system and burst small or large leaks throughout it.
How does a solenoid valve fail?
Solenoid coil failure can be caused by a number of factors. Applying an incorrect voltage to the coil will cause it to fail and may cause the coil to burn out. Electrical surges or spikes may also damage the coil. … Sediment or other particles entering the valve may cause coil failure.
How do you reset a sprinkler system?- Turn the control dial to the “off” position.
- Press the “next” button to access the clear-memory feature. …
- Press and hold the “off” button until the display stops blinking.
- Turn the control dial to the “run” position.
- Press and hold down the “minus” arrow and “prog” buttons simultaneously.
How many ohms should a solenoid have?
For irrigation applications, a solenoid is considered to be good if its resistance is between 20 – 60 ohms. It is best to compare resistance measurements to that of a new solenoid. Example, if a solenoid measures 44 ohms, it would be considered good because it is between 20 – 60 ohms.
How do you test a sprinkler solenoid with a multimeter?
Rotate the multimeter dial to “Ohms” and place one lead to each of the two wires on the solenoid. The solenoid is a black, round object on top of the valve that opens and closes the water flow. The reading should be the same as it was at the irrigation controller; if not, the solenoid is defective and needs replacing.
How do you open Irritrol rain dial?
If you have an Irritrol RD-nnnn key and it won’t open: There’s usually a plastic key you turn on the side of the case to open it. While you turn it and keep it turned, pull on the door; they sometimes stick closed a bit.
Should sprinkler valves leak?
Sprinkler valve leaks are important to address because even the smallest leak will waste more water – and more money – every day that the leak goes unattended. When there doesn’t seem to be any visible damage to the sprinkler head, then damage to the valve seal is likely the culprit.
What is a Raindial?
The Rain Dial family of hybrid controllers offers outstanding scheduling flexibility. The unique modular design makes programming, installation and servicing fast and easy. All these features make the Rain Dial controller ideal for small agricultural drip irrigation, as well as commercial and industrial applications.
How do I clear my sprinkler system for winter?
- Step 1: Shut Off the Water. It will come as no surprise that the first step is turning off the water to the system with a main valve that’s usually found near your water meter. …
- Step 2: Turn Off the Timer. …
- Step 3: Drain the Water. …
- Step 4: Insulate Above-Ground Components.