Protect electronics and use the right cleaner
- Confirm the generation before disassembly; LR3, LR4, and LR5 do not share every cleaning limit.
- Never submerge or spray the LR3 base or bonnet, or the LR4/LR5 base or control panel.
- Where a damp-cloth method is allowed, apply cleaner to the cloth away from electronics—not toward the machine.
- Use mild soap, water, or the manufacturer cleaner only where permitted. Never mix cleaners.
Check the sensor method for LR3, LR4, and LR5
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Cleaner limits by generation
- LR3: no bleach; it can degrade the plastic.
- LR4: no bleach or bleach-containing product inside the globe.
- LR5: no bleach or ammonia-based cleaners.
- A “pet-safe” label does not make a spray safe for electronics, contacts, or sensor openings.
Dry, clear, and reassemble every part
- Rotate washable parts and check seams and pockets; hidden moisture can make litter clump and clog ports.
- Remove loose clumps from the waste port, hair beneath seals, and litter around the base or scale feet.
- Fit the drawer liner flat so it cannot puff into the sensor view. LR4 favors white bags; LR5 specifies a tightly fitted white 10–13 gallon bag.
- Seat the globe, key, gears, bonnet, filter cover, and accessories without forcing them.
- Keep tools away from pinch points and the motor while the machine is powered.
Show model-specific reassembly checks
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Refill, zero, and test
Dry
Confirm every washed component and hidden pocket is completely dry.
Seat
Verify globe, key, gear, bonnet, drawer, filter, and accessories for the exact model.
Level and fill
Use a firm, level surface with nothing touching the base. Add compatible litter only to the MAX line.
Zero
Use Reset on LR3/LR4 or a short press of Cancel on LR5. Do not lean on the unit while zeroing.
Test
Supervise one complete cycle and record any exact light or app message that returns.
A reset is not a repair
A reset can clear a notification after its cause is corrected; it cannot repair liquid damage, wiring, a sensor board, motor, or cracked part. If the machine reports a fault, use our post-clean troubleshooting guide. If the issue is odor rather than operation, work through the seven hidden odor zones.
Sources and model notes8 references
- Whisker: Litter-Robot 3 deep-cleaning guide (opens in a new tab) — bleach, washable parts, base, DFI, drying, and reassembly
- Whisker: Litter-Robot 3 buttons and lights (opens in a new tab) — LR3 Reset and Cycle controls
- Whisker: Litter-Robot 4 deep-cleaning guide (opens in a new tab) — base, bleach, liner, drying, and reassembly
- Whisker: Litter-Robot 4 laser-sensor cleaning (opens in a new tab) — LR4 sensor method
- Whisker: Litter-Robot 4 ongoing maintenance (opens in a new tab) — liner, placement, fill, and Reset guidance
- Whisker: Litter-Robot 5 deep-cleaning guide (opens in a new tab) — cleaner limits, washable parts, base, LR5 sensors, and reassembly
- Whisker: Litter-Robot 5 use and care (opens in a new tab) — LR5 dry-only sensor method and forced-air restriction
- CDC: cleaning and disinfecting pet supplies (opens in a new tab) — product-label, drying, pet-separation, and no-mixing precautions
LitterReserve is an independent cleaning service and is not affiliated with or endorsed by Whisker. Litter-Robot is a trademark of Whisker.