Litter-Robot 3 Pinch Contact & DFI Kit (2024)

FAQs

What is the DFI sensor on Litter-Robot 3? ›

Litter-Robot 3 is equipped with infrared emitters and sensors, called DFI sensors, located above the waste drawer that check if the drawer is full each time the globe returns to the Home position. Once a full waste drawer is detected, the unit will indicate it is full with a blue flashing light.

The pinch sensor is located in the base. Look at the top of the base, and locate the plastic pinch bar on the left side of the waste port opening. Press the bar inward several times to dislodge any built-up litter or debris.

Litter-Robot is equipped with anti-pinch sensors on both sides of the waste drawer chute to ensure your cat's safety while in use. These sensors monitor for potential pinch conditions at all times. If your unit displays a green and white alternating light bar, this indicates an anti-pinch fault during power up.

Cleaning the DFI sensors

Debris, such as dust or cat fur, can interfere with the DFI sensor. This can cause the unit to inaccurately trigger a drawer-full indication.

However, you'll still want to clean the Litter-Robot's globe every 1-3 months. We also recommend deep cleaning your Litter-Robot 4 or Litter-Robot 3 approximately three times per year, depending on your personal preference and your cat's behavior.

Clean the globe with Litter-Robot Cleaner Spray or Cleaner Wipes, or with water and a mild soap. There are no electronic components in the globe that can be damaged by soap and water. If the globe has become extremely dirty, it can be soaked and cleaned with a water hose.

Keep it clean!

Once every month or so (depending on how frequently the unit is used), give your Litter-Robot a wipe down. A couple times per year, give it a more thorough cleaning. For a simple Litter-Robot cleaning, empty all of the litter from the globe by pressing the Empty button.

A pinch sensor is designed to measure the force on a rolling window. These sensors are "trained" to not interfere with operation up to a certain point of force, but will immediately activate if the standard amount of force is exceeded.

Install New Pinch Detect Terminals

Using needlenose pliers, position the new pinch contacts. A flathead screwdriver can help to gently push them into place. Make sure the contacts are fully seated in the slot. Both metal pinch contacts should be touching each other.

The Litter-Robot 3 is equipped with a cat sensor that detects when a cat enters and exits the globe. If a cycle is interrupted or the bonnet is removed, the unit will stop, and the yellow light will flash slowly, about 1x per second. This will also occur if the cat sensor is activated by a cat entering the globe.

Why does my Litter-Robot keep saying it's full? ›

Check for obstructions blocking the drawer full indicator (DFI) sensors. There are two sensors inside the base, above where the waste drawer would sit. Debris, such as dust or cat fur, can interfere with the DFI sensor. This can cause the unit to inaccurately trigger a drawer-full indication.