Litter-Robot 5 motion in drawer: how to clear it
- Remove and reseat the drawer — check for a foreign object or a peeling seal strip first.
- Press Cancel — to clear the notification once the drawer is back in place.
- Test the sensor bars — on each side of the dump port for a soft click if the alert keeps returning.
- Zero the SmartScale — and run a test cycle to confirm it's cleared.
- "Motion in Drawer" notification — the Whisker app shows the alert and the unit won't start its next cycle.
- Recently touched the drawer — this usually shows up right after cleaning, emptying, or reseating the Waste Drawer.
- Globe stays put — the Globe waits at the home position instead of running automatically.
Your cat may have no usable box right now. Cats that can’t get in will hold it or find another spot in the house — put a spare tray down before you start, so nothing depends on how fast this goes.
Why the motion in drawer alert triggers
This sensor exists to keep the Waste Port clear for your cat's exit path, not to catch a real problem — most triggers are simply the drawer being handled, not a fault.
The drawer was just handled
Cleaning, emptying, or quickly sliding the Waste Drawer in and out multiple times registers as motion to the sensor — the unit is doing exactly what it's designed to do, not malfunctioning.
Something is in the drawer space
A foreign object, debris, or a peeling seal strip in the drawer area can keep the sensor triggered even after you've stopped touching it, which is why an empty-and-reseat check comes first.
Most cases clear in under 15 minutes with the checklist below.
How to fix it — step-by-step
Notification keeps coming back?
Check the motion sensor bars directly.
If the issue persists: replacement options
If both sensor bars click normally and the drawer is clean, but the notification keeps returning after a full test cycle, that points to the cat presence sensor or base itself — a case for Whisker support.
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A well-seated liner keeps loose material away from the sensor bars, which helps prevent the alert from recurring after you've cleared it once.
Advanced troubleshooting & diagnostics
Why does the Litter-Robot 5 even monitor the drawer for motion?
The Litter-Robot 5 is equipped with a cat presence motion sensor that monitors the Waste Drawer specifically so it can rotate the Globe to a position where the waste port provides an exit route if it detects movement there while the Globe is home. It's a safety and convenience feature, not a fault detector — which is exactly why routine drawer handling triggers it so often.
Frequently asked questions
Why does my Litter-Robot 5 say Motion in Drawer after I clean it?
Cleaning, emptying, or reinserting the Waste Drawer registers as motion to the built-in cat presence sensor — this is expected, not a fault. Reseat the drawer and press Cancel to clear it.
How do I clear the Motion in Drawer notification on my Litter-Robot 5?
Remove and reinsert the Waste Drawer, checking for any foreign object first, then short-press Cancel. If it returns, inspect the two sensor bars flanking the dump port for debris and confirm each clicks when pressed.
Is Motion in Drawer a serious error on the Litter-Robot 5?
Not usually — it's most often triggered by normal handling of the drawer. It only points to a real issue if it keeps returning after a clean drawer, working sensor bars, and a completed test cycle, in which case contact Whisker support.
Conclusion
Motion in Drawer almost always means the sensor did exactly what it's designed to do after normal drawer handling — reseat it, press Cancel, and you're usually done. If it keeps coming back after checking the sensor bars, let us know and we'll help you dig further.
Still not fixed? Here’s what to do next.
Some faults are genuinely hardware, and no amount of cleaning or resetting will clear them. If you’ve worked through everything above and it’s still doing it, stop here rather than taking the unit further apart.
- Go to Whisker (Litter-Robot) directly. If the unit is still under warranty, let them replace the part rather than paying for it yourself — contact Whisker (Litter-Robot) support.
- Tell us what didn’t work. We rewrite bulletins when readers show us a case they don’t cover — compliance@pet-infrastructure.com. Tell us the model, what the lights are doing, and which steps you already tried.
- Ask other owners. r/litterrobot is active and full of people who have had the exact same fault on the exact same model. Search the sub before posting — the answer is often already there.
When to stop and call the manufacturer: if the fix needs the base opened, the motor or control board touched, or any tool beyond a screwdriver — stop. On a unit in this price range, opening it yourself usually voids the warranty, and a warranty repair costs nothing.
Did this actually fix it? 🐾
The complete Litter-Robot 5 bulletin library
Every Litter-Robot 5 bulletin published on the site, in one place:
| Bulletin | Covers |
|---|---|
| TB-LR5-001 | Litter-Robot 5 showing the wrong waste drawer percentage or a false Drawer Full alert?… |
| TB-LR5-002 | Litter-Robot 5 WasteID mixing up urine and feces, cycling too fast, or confusing which… |
| TB-LR5-003 | Whisker says a Litter-Robot 5 Pro firmware update can take 30 minutes and look frozen.… |
| TB-LR5-004 | Litter-Robot 5 won't cycle automatically? Here's every real cause — full drawer, sleep… |
| TB-LR5-005 | Litter-Robot 5 stuck on Obstruction Detected? Clear the dual pinch bars, fix a puffy… |
| TB-LR5-006 | Litter-Robot 5 globe stuck with a blinking red light? Fix the Overloaded Globe error —… |
| TB-LR5-007 | Litter-Robot 5 stuck on Globe Position Fault? Here's every documented cause —… |
| TB-LR5-008 | Litter-Robot 5 or Pro flashing red with Safety Bar Disconnect? Clear the pinch bars,… |
| TB-LR5-009 | Litter-Robot 5 stuck on Bonnet Removed even though it's on? Reinstall the bonnet… |
| TB-LR5-010 | Litter-Robot 5 or Pro stuck during WiFi setup? Fix credential errors, Bluetooth… |
| TB-LR5-012 | Litter-Robot 5 stuck on Extended Scale Activity for 30+ minutes? Check placement, zero… |
| TB-LR5-013 | Litter-Robot 5 or Pro suddenly offline after working fine? Reconnect automatically,… |
Written by Alberto Guardia
I’m a physician working in medical informatics, and I run Pet Infrastructure on my own — no team, no manufacturer sponsorship, no paid placements. I share my home with Wolfgang, a 13-year-old Chartreux with firm opinions about litter and none whatsoever about firmware.
How this page was put together. Every light code, button sequence and timing here is traced back to Whisker (Litter-Robot)’s own documentation, to official support articles, or to several owner reports that agree with each other — and the guide tells you which. Where something genuinely isn’t documented anywhere, I say so instead of filling the gap.
How I check every guide → · Last updated August 2026