Flashing Red & Blue Lights: OmniSense Laser Sensor Fault | Litter-Robot 4

Litter-Robot 4 is equipped with OmniSense™ detection that utilizes laser and weight sensor technology to provide real-time litter and waste drawer levels. OmniSense™ also supports the SafeCat system, which continuously analyzes four safety zones to ensure your cat is always safe.

There are three laser sensors located in the top of the Bezel, as well as a cat sensor weight scale located in the Base of the unit. These sensors detect when a cat has entered or exited the unit.

If the unit detects an issue with all three laser sensors, called Curtain Sensors, it will indicate a fault with the entire system and the light bar on the Litter-Robot will display red and blue alternating lights. You will also receive a notification on your phone if you use the Whisker App.

Debris, such as dust or cat fur, can interfere with the operation of these sensors. This can cause the unit to inaccurately measure the Waste Drawer level and litter level, as well as cause false cat detects.

This video will show you what to do when you experience this light pattern or app notification. For additional information or support, please visit whiskersupport.com.