Litter-Robot 4: Light Codes

Created by Ken MacCormick, Modified on Sun, 31 Dec 2023 at 06:55 PM by Ken MacCormick

 The Litter-Robot 4 control panel features 5 buttons and an LED display for easy operation.


LitterRobo_4_panel


Blue flashing
If your unit’s light bar is flashing blue, this indicates that the waste drawer is full. Empty the waste drawer, press the Reset button, then press the Cycle button. Learn more.


Blue with flashing yellow WiFi
If your unit's light bar is blue with one flashing yellow light next to the Connect button, this indicates that the unit is in onboarding mode and waiting to be connected to the app. Learn more.
Blue with flashing blue WiFi
If your unit's light bar is blue with a blinking blue light adjacent to the Connect button, this indicates that the unit is connecting to the app or has disconnected and is trying to reconnect but has not successfully reconnected. Learn more.
Blue with solid white WiFi
If your unit's light bar is blue with a solid white light adjacent to the Connect button, this indicates that the WiFi is turned off. Short press the Connect button to re-connect to WiFi.
Blue and purple alternating
If your unit’s light bar is alternating blue and purple, this indicates your unit entered a mode for an accessory that is not detected. Learn more.



Red solid
If your unit’s light bar is solid red, this indicates that the cat sensor has been triggered (kitty entered globe). The unit will cycle once the Wait Time Countdown is up or if you press the Reset button. 

The below link takes you to the Whisker US support article.  
Learn more.

If you require support please contact Cat Evolution Customer Support.

Red flashing
If your unit’s light bar is flashing red, this indicates that a cat (or weight) has been detected for over 30 minutes. 

The below link takes you to the Whisker US support article. 
Learn more.

If you require support please contact Cat Evolution Customer Support.
Red momentary flash
If your unit’s light bar briefly flashes red when you press any button, this indicates that the unit is actively in Control Panel Lockout Mode. This mode disables the buttons to prevent accidental changes to the unit. Learn more.
Red with flashing white
If your unit’s light bar is red with a partial flashing white light, this indicates that the unit cannot detect the Globe position. Learn more.
Red with flashing yellow
If your unit's light bar is red with a partial flashing yellow light, this indicates the Globe is jammed or overloaded, and the motor will stop. The unit will retract and try to continue cycling. 

The below link takes you to the Whisker US support article. 
Learn more.

If you require support please contact Cat Evolution Customer Support.
Red and green alternating
If your unit’s light bar displays a red and green alternating light bar, this indicates that the unit has lost its factory scale calibration values, and needs to be repaired. Please contact Cat Evolution Customer Support for further assistance.
Red and blue alternating
If your unit's light bar is alternating red and blue, this indicates that the three laser sensors, called Curtain Sensors, need to be cleaned. 

The below link takes you to the Whisker US support article. 
Learn more.

If you require support please contact Cat Evolution Customer Support.
Red ping-pong
If your unit’s light bar has one red light lit going back and forth (also known as "ping-pong"), this indicates that motion was detected in the waste drawer. 

The below link takes you to the Whisker US support article. 
Learn more.

If you require support please contact Cat Evolution Customer Support.


Purple solid
If your unit’s light bar is solid purple, this indicates that Sleep Mode is active. Long press the Cycle button to disable or enable Sleep mode. Learn more.


White middle flashing
If your unit's light bar is temporarily flashing white in the middle of the light bar, this indicates that the unit is receiving an Over-The-Air firmware update. No action needs to be taken at this time.
White with flashing yellow
If your unit's light bar is white with a partial flashing yellow light, this indicates the power supply is incorrect. Learn more.


Yellow solid
If your unit’s light bar is solid yellow, this indicates that the unit has been paused. Pressing the Cycle or Reset button should resume the cycle. If it does not, press the Power button to turn the unit off and back on. Learn more.
Yellow flashing
If your unit’s light bar is flashing yellow, this indicates that the Bonnet has been removed. The unit will resume its previous function 5 seconds after the Bonnet is replaced. Learn more.
Yellow ping-pong
If your unit’s light bar has one yellow light going back and forth (also known as "ping-pong"), this indicates that the pinch detector has been activated. 

The below link takes you to the Whisker US support article. 
Learn more.

If you require support please contact Cat Evolution Customer Support.
Yellow round-robin
If your unit's light bar has a single yellow light that moves with the globe's rotation, your unit is performing a Clean cycle or an Empty cycle. No action needs to be taken at this time. 

The below link takes you to the Whisker US support article. 
Learn more.

If you require support please contact Cat Evolution Customer Support.


Green and white alternating
If your unit displays a green and white alternating light bar, this indicates an Anti-Pinch Fault during power-up. 

The below link takes you to the Whisker US support article. 
Learn more.

If you require support please contact Cat Evolution Customer Support.
Green ping-pong
If your unit’s light bar has one green light going back and forth (also known as "ping-pong"), this indicates the Curtain Sensors are attempting to auto-calibrate their cat detection levels. No action needs to be taken at this time. 

The below link takes you to the Whisker US support article. 
Learn more.

If you require support please contact Cat Evolution Customer Support.
Green with flashing red
If your unit's light bar is green with a partial flashing red light, this indicates the auto-calibration has failed, and the sensors need to be cleaned. 

The below link takes you to the Whisker US support article. 
Learn more.

If you require support please contact Cat Evolution Customer Support.


Light patternPossible causePossible solution
Green FlashingManual cycle completed successfully
Normal operation, no action required
Green
Round Robin
Normal operation, no action required
Normal operation, no action required
Purple Round RobinNormal operation, no action required
Normal operation, no action required
Red / Green
(3 Solid / 2 Flashing)
Low system voltage
Replace power supply
Blue / Green
(3 Solid / 2 Flashing)
Issue with USB device
Power OFF the robot, wait 5s, power ON the robot;
Unplug the USB device
Blue / Yellow (3 Solid / 2 Flashing)Robot or scale feet are unbalanced
Make sure robot is on level ground (not on carpet, a litter mat, power cord, or leaning against wall)
Yellow / Red
(3 Solid / 2 Flashing)
Dirty laser 2;
Laser board firmware does not support this feature
Reference 'Flashing Red Display Code' (link takes you to the US Whisker support site);
Use Whisker app to update the robot's firmware
Yellow / Green
(3 Solid / 2 Flashing)
User-initiated 4x4 cal mode
Normal operation, no action required
Yellow / Blue
(3 Solid / 2 Flashing)
User-initiated 4x4 cal mode
Normal operation, no action required
White / Blue
(3 Solid / 2 Flashing)
Power supply is defective
Replace power supply
Green / Purple Alternating
Hall effect board disconnected
Check motor connection
Contact customer support
Blue / Yellow
Alternating
User-initiated manual override mode

Normal operation;
Press and hold Cycle key to manually cycle the robot;
To exit this mode, power cycle the robot

Blue / White
Alternating
Motor disconnected
Check motor connection
Contact customer support
Yellow / Purple Alternating
Scale Calibrate or Audit Mode
Power OFF, wait 5s, power ON the robot

Red Power button

User initiated a hardware reset;
Main board is defective

Normal operation, no action required, allow 5s for robot to reboot;
Unplug power supply from the robot

Blue flashing Power button
Lost power;
Power supply is defective

Plug power supply into robot/wall;
Replace power supply

White Power button
OTA initiated from user or backend
Normal operation, no action required
White flashing Power button
OTA initiated from user or backend
Normal operation, no action required
White Cycle button
OTA initiated from user or backendNormal operation, no action required
White Cycle + Reset buttons
OTA initiated from user or backend
Normal operation, no action required
White Reset button
OTA initiated from user or backend
Normal operation, no action required
White flashing WiFi button User-enabled Wi-Fi mode
OTA ESP
Yellow WiFi buttonUser-enabled Wi-Fi mode
Normal operation, no action required
Red flashing WiFi button
Unable to connect to router

Verify router is powered up and operational;
Power cycle the robot


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