Litter-Robot 3: Troubleshooting Issues - How To Fix (2025)

If you've been troubleshooting issueswith your Litter-Robot 3 to no avail, try this Litter-Robot 3 troubleshooting method, the Fresh Restart. This will help eliminate confounding conditions and identify the problem if there is one. This process will help you communicate the issue to our Customer Service team, so you can get your Litter-Robot working again.

Don't forget to check our Litter-Robot 3 light troubleshooting guide too.

Litter-Robot 3 Troubleshooting: Fresh Restart

It is important that you carry out this entire process through Step 10, no matter if anearlier step has apparently resolved the issue.

Step 1: Power Down

Press the Power button to turn the unit off, then unplug the power supply from the back of the Base.

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Litter-Robot 3: Troubleshooting Issues - How To Fix (2)

Step 2: Disassemble the Bonnet and Globe

Remove the Bonnet by depressing the side tabs, tilting it backward, then lifting up, and set it aside.

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Litter-Robot 3: Troubleshooting Issues - How To Fix (4)

Thenremove the Globe and set it aside (you do not have to empty it of litter). We've assumed that your Globe was at the Home position with the litter resting on the black liner, but if your Globe wasn't at the Home position, be careful not to spill litter out of the waste port.

Step 3: Situate the Base

Ensure the Base is properly situated on firm, level flooring, that it is not pushed against anything (like the wall), and nothing is resting on it.If you have your Litter-Robot on carpeting or flooring with cracks, grout lines in the case of tile, or any other deformity that could result in uneven contact, either relocate the unit, or place a board underneath it. Forthe Cat Sensor to workaccurately and reliably, the Litter-Robot must always be free-standing, meaning it's not leaning on anything and nothing is leaning on it.

Empty the Waste Drawer (even if it's not very full).

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Step 4: Reassemble the Globe

Put the Globe back on the unit in the Home position, ensuring that it is on the track.

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If you feel that one side of the Globe is heavier than the other, peer through the screen intothe litter pocket (the area where clean litter is held during a cycle). Any weight concealed here could throw off the unit during cycling. Check for stuck litter, especially if you recently cleaned your unit (leftover moisture may have interacted with the litter). If you see debris or suspect there is litter caked behind the screen, you will need to cleanthe Globe (the screen should not be bent outward to clean behind).

Once aligned on the track, check that the litter level inside the Globe is at or below thethe raised Fill Line on the black rubber liner when spread flat.

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Step 5: Reassemble the Bonnet and Position the Internal Shield & Key

Replace the Bonnet by first aligning the rear tabs in the Base, then tilting the Bonnet forward, and snapping the side tabs into place. Make sure all four tabs are secured.

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At the back of the Globe, rotatethe black Key intopocket in the Base.

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Step 6: Double Check

Ensure no part of the unit is pushed against a wall or has anything resting onit.

Step 7: Power Up

Plug the power supply back into the Base, and press Power to turn the unit on.

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Litter-Robot 3: Troubleshooting Issues - How To Fix (12)

Step 8: Automatic Reset

The unit should perform an initial Clean cycle: the Globe will rotate counterclockwise to the Dump position, then rotate clockwise past the Home position to level the litter before returning to the Home position with a solid blue light. The Cat Sensor is automatically reset at the end of eachcycle.

Step 9: Test Cycle

Press Cycle again to test that your unit can complete a Clean cycle and return to the Home position with a solid blue light. Continue to Step 10.
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Step 10: Manual Cat Sensor Activation

Press on the Globe just above the entrance in a forward and downward direction—just press and release. The blue light should turn offand the red light should come on. You'veactivated the Cat Sensor to simulate your cat entering the Globe, then exiting. Allowthe Wait Time (3, 7, or 15 minutes—whatever you have your unit set to) to elapse and the Clean cycle to finish. The Globe will return to the Home position with a solid blue light on the Control Panel; if you get this result,there is no issue with yourLitter-Robot.

If, during Steps 9 or 10, the unit does not return Home with a solid blue light, please note the light pattern and position of the Globe. This information will help Customer Experience advise you on further troubleshooting, so you can get your Litter-Robot working again!

For more information about the Litter-Robot 3, review the Instruction Manual,visit our Support Portal, or check out our YouTube channel.

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Litter-Robot 3: Troubleshooting Issues - How To Fix (2025)

FAQs

How do you reset the weight sensor on a Litter-Robot 3? ›

Always remember to push the Reset button after making changes to the unit. This will recalibrate the weight sensor and circuit board to reflect the changed weight. From the Home position, press the Power button to turn the unit off. Press the Power button to turn the unit back on.

How to do a hard reset on Litter-Robot 3 reddit? ›

Perform a hard reset after emptying the waste drawer: Unplug Litter-Robot for 10 seconds and replug. Thoroughly clean the Drawer Full Indicator (DFI) with a dry cloth or cotton swab. Check for signs of corrosion.

How do you fix a Litter-Robot cat sensor fault? ›

Check for obstructions that might prevent the cat sensor from functioning.
  1. Make sure Litter-Robot is on a firm, level surface.
  2. The cat sensor function can be affected if the unit is on carpeting or a litter mat.
  3. Check that there are no power cords running underneath the base of the robot that might obstruct movement.

Why is my Litter-Robot not sensing my cat's weight? ›

The Litter-Robot is equipped with weight sensors located in the base of the unit that are used to further detect and weigh the cat within the globe while in the Home position. If your Litter-Robot 4 is not accurately detecting your cat's weight, this is typically an issue with the placement of your robot.

When should I reset my Litter-Robot? ›

IMPORTANT: Any time you do anything that affects the weight or placement of the unit, including adding or removing litter, emptying the waste drawer, or moving or cleaning the unit, press the Reset button once you are done.

Can you reset a Litter-Robot remotely? ›

Remote Control

The remote also allows you to reset the gauge when you empty the unit, helping the app learn your emptying behaviors to better tailor our gauge to match your needs.

How do you fix Litter-Robot 3 over torque? ›

Remove the globe and remove any debris that might be stuck on the outside of the globe. Check and clear any obstructions in the waste port. Waste clumps or toys could obstruct the globe rotation and cause an over torque fault. Remove and empty the waste drawer if desired.

What to do if Litter-Robot is stuck? ›

If your unit is stuck during a cycle, short press the Reset button to continue and complete the cycle. If your unit is still stuck and it is in an error state, long press the Reset button for 3 seconds to zero the weight scale. Turn Litter-Robot off and unplug the unit.

How do I get my Litter-Robot 3 back online? ›

Re-connecting Litter-Robot 3
  1. Perform a hard reset on your Litter-Robot. Unplug the unit from the back of the base. ...
  2. Ensure you are using the latest version of the Whisker app. ...
  3. Update your network in the Whisker app. ...
  4. Reboot your router. ...
  5. Press both the Cycle and Empty buttons together for approximately 3 seconds.

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