Light Codes (Rachio 3)

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What are light codes?

The Rachio 3 Smart Sprinkler Controller displays over 20 LED light codes that show the status of your controller. These light codes offer visual clues on what's happening with your controller at any given time.

Tip

Controller not working as expected? Light codes are a great first place to look, and can save you time in figuring out any issues! 

How are light codes used?

The light codes in Rachio 3 are very useful in a variety of situations and can help you know or recognize: 

  • When a particular zone is running, paused, or delayed
  • Where your controller is at within the Wi-Fi setup process (booting up, connecting to Wi-Fi, connecting to Rachio servers, or activating controller)
  • Whether any errors are occurring or troubleshooting steps are needed
  • And more!

Rachio 3 light code quadrants

What do light codes look like, and what do they mean?

Use the tables below to identify the light code you are seeing, as well as any followup or troubleshooting steps needed. 


Wi-Fi and Wi-Fi Troubleshooting light codes

Light Code Display

What It Means

What To Do

First quadrant blinking white

Booting Up - When the controller is booting up after restarting or power cycling, the first quadrant will blink white.

Status indicator (no action required)

First quadrant solid light, with second quadrant blinking

Awaiting Wi-Fi - When the controller is ready to connect to Wi-Fi, the first quadrant will be solid with the second quadrant blinking yellow.

Status indicator (no action required)

First quadrant solid light, with second quadrant blinking

Reconnecting to Wi-Fi - If you're reconnecting to Wi-Fi, when the controller has restarted and is reconnecting with the pre-entered Wi-Fi credentials, first quadrant will be solid and second quadrant will be blinking yellow.

Status indicator (no action required)

First quadrant blinking white, with one light red

Boot Error One - If the first quadrant is blinking white with one red, this indicates a boot failure.

Unplug the controller, press down on the white button (the directional pad with Rachio symbol) to clear any residual charge within the controller

First quadrant is solid red light

Boot Error Two - If the first quadrant is a solid red bar, contact Rachio Support. 

Contact Rachio Support 

Second quadrant blinking white, with one red

Awaiting Wi-Fi Error - The second quadrant will blink white and then one red to indicate an error connecting to the Wi-Fi network

Troubleshoot Wi-Fi connection

First and second quadrants solid light, with third quadrant blinking

Connecting to Server - The first and second quadrants will be solid and the third quadrant will be blinking.

Status indicator (no action required)

Third quadrant blinks white, with one red light   

Connecting to Server Error - The third quadrant will blink white with one red to indicate an error connecting to server

Troubleshoot Wi-Fi connection

Light bar solid for first 3 quadrants, with fourth quadrant blinking

Controller Registering - The first, second, and third quadrants will be solid and the fourth quadrant will be blinking until a full connection has been established.

Status indicator (no action required)

 


Controller status light codes

Light Code Display

What It Means

What To Do

Light bar flashing blue

Success - Any time the Rachio 3 accepts a command successfully, the entire light bar will flash blue.

Status indicator (no action required)

Light bar alternating between a soft blue light to light blue light ("breathing")

Idle - Controller is in idle state

Status indicator (no action required)

Light bar shrinks from full bar of white light to middle bar of white light

Shutting Down - When the controller is shutting down, the light bar will start out fully illuminated with a white light. The light will then shrink down to the middle of the bar. It will continue to provide this code until the controller reboots.

Status indicator (no action required)

Light bar fills from left to right with white light, then flashes blue

Wi-Fi Update - When holding down the Wi-Fi button, the entire bar will fill up from left to right with a white light. It will then flash blue to indicate that the controller is now moving to Wi-Fi update mode, then run the shutdown sequence light code

Status indicator (no action required)

Light bar fills up from left to right with yellow light, then flashes blue

Factory Reset - When holding down the stop button, the light bar will fill up from left to right with a yellow light. It will then flash blue, then run the shutdown sequence light code.

Status indicator (no action required)

Light bar displays one blue light in middle, then splits

Direct Access - When the controller has been placed in direct access mode, the light bar will have one blue light in the middle that then splits into two lights that move away from each other toward the ends of the light bar.

Status indicator (no action required)

Light pulses reddish orange

Standby Enabled - When standby is enabled from the app, the light bar will pulse a reddish orange color until standby is deactivated.

Status indicator (no action required)

Light bar slowly filling up with light, with end of light bar blinking

Uploading Firmware - When the device is receiving a firmware upload, the light bar will slowly fill up with a white light with the end blinking. This is so the light bar works like a progress indicator for the download.

Status indicator (no action required)

Green light with with blinking tip  

Installing Firmware - When the controller is installing firmware, there will be a green progress light with a white blinking tip.

Status indicator (no action required)

  


Zone and watering status light codes

Light Code Display

What It Means

What To Do 

Small blue light moving across light bar

Zone Selection - When selecting a zone to water from the controller, pressing the forward/back buttons will cause a small blue light to move across the light bar over the zone terminals to indicate which zone is selected.

Status indicator (no action required)

Bright blue light pulsing over a particular zone

Zone Running - When a zone is running (commanded from the app or controller), there will be a bright blue light pulsing over the zone that is running.

Status indicator (no action required)

Blue light bounces from left to right

Watering Paused - When a run is paused, there will be a blue light that bounces from left to right to left during the entire duration of the pause.

Status indicator (no action required)

"Splashing" pattern of light moving away from center of light bar

Watering Delay Active - When a watering delay has been set, the light bar will replicate a raindrop by lighting a random area of the light bar, and then "splashing" the light away from the center.

Status indicator (no action required)

Pulsing red light over a particular zone section

Zone Fault - When the controller detects a zone fault, it will pulse a red light over the faulting zone number.

Inspect zone fault and repair if possible

 

Note

Looking for Generation 2 light codes? Click here!

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