Litter-Robot III Open Air - Red Blinking Light

If your robot has problems with the red blinking light, please check your unit for the following:

  • The litter is above the fill line or in excess of 10lbs.
  • CATS has not been reset after adding weight
  • The waste drawer has too much weight
  • The unit is sitting on an uneven surface ‐ grout lines on tile floor or in a bathtub.
  • The unit is pushed into a corner, against a wall, or furniture
  • Objects are resting or pressing on the unit

The red blinking light indicates CATS (the cat sensor) is detecting excess weight for more than 2 minutes. To test your changes, power the unit off and then on. Allow the unit to complete the start‐up cycle and return Home with a solid blue light. Your unit is operating normal. If it continues to flash, let us know so we can troubleshoot further.

Always press Reset after emptying the waste drawer, adding litter, or moving the unit. You can also turn the unit OFF then ON to ensure the baseline is set properly. When pressing Reset, watch for the blue light to quickly flash one time. This indicates CATS has been successfully reset.

If none of the above solves the issue:

  1. Remove the bonnet.
  2. Remove the globe
  3. Replace the bonnet
  4. Press Cycle (without the globe on the unit)
  5. Allow the motor to run for 5 seconds, at any point, does it stop and flash red? If no, then excess weight needs to be removed from the globe. If yes, (it blinks red), your unit will need to be repaired (the cat sensor is likely defective).