Rachio compatibility with DC Solenoids

Last Update:Feb 24 2022 2:54pm • Est. Read Time:Est. Read Time: 2 MIN

Rachio is only compatible with AC Solenoids, but what if you have a system with DC Solenoids? How to make a DC Solenoid work with a Rachio controller? Is it possible to convert DC solenoids onto AC solenoids? This article can help you with that!


Disclaimer

Rachio is NOT affiliated or authorized by HUNTER, RAIN BIRD, or TORO; the valves and solenoids referenced before are manufactured by their respective company. This article is intended for instructional and compatibility purposes only.

Battery operated controllers

Do you have a battery-operated controller? If so, it is not compatible with Rachio controllers unless you convert to AC solenoids. A battery-operated controller sends a quick DC pulse to operate the solenoid, therefore the battery-operated controller requires a DC latching solenoid to operate correctly. Rachio controllers send an AC current to operate the solenoid, which requires an AC solenoid to operate correctly.


Caution

If you attempt to power a DC solenoid using AC power, it will usually open the valve, but cannot close it.

How to convert from DC to AC 

To convert your solenoids from DC to AC, you simply need to source replacement solenoids that fit your valve(s). Most late-model valve manufacturers offer AC & DC solenoids that are interchangeable with the same valve.

Examples of AC & DC solenoids

 HUNTER DC Valve & Solenoid 

 RAIN BIRD DC Valve & Solenoid 

 TORO DC Solenoid 

 HUNTER AC Valve & Solenoid 

 RAIN BIRD AC Valve & Solenoid 

 TORO AC Solenoid 

Colored wire indicators 

Notice the different colored wires coming out of the DC latching solenoid will have one black wire for the common wire and one red wire for the station wire. This can be a good way to identify a DC solenoid if the label on the solenoid has weathered or is missing.

If in doubt, please contact Rachio Support with a photo of your existing controller/wiring and any wiring in the valve boxes. 


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