Whisker Litter-Robot 4
Litter-Robot 4 Supply & Accessory Bundle User Manual
Brand: Whisker | Model: Litter-Robot 4
1. Introduction to Your Litter-Robot 4 Bundle
Congratulations on your purchase of the Litter-Robot 4 Supply & Accessory Bundle by Whisker. This comprehensive bundle provides everything you need for a cleaner, odor-free home and a happier cat. The Litter-Robot 4 is an advanced automatic, self-cleaning litter box designed to simplify pet care by automatically sifting waste and reducing odors.
This bundle includes:
- Litter-Robot 4 Automatic Litter Box
- Litter-Robot 4 Ramp
- LitterTrap Mat
- 3 OdorTrap Packs
- 10 Waste Drawer Liners
- 30 Cleaner Wipes
- 2 Carbon Filters

Figure 1.1: The complete Litter-Robot 4 Supply & Accessory Bundle, featuring the Litter-Robot 4 unit, ramp, mat, and various supplies. A cat is shown inside the globe.

Figure 1.2: An overhead view displaying all components included in the Litter-Robot 4 bundle: the Litter-Robot 4 unit, waste drawer liners, OdorTrap packs, carbon filters, cleaner wipes, LitterTrap mat, and ramp.
2. Setup and Initial Installation
Follow these steps to set up your Litter-Robot 4 for the first time:
- Unpack and Place: Carefully remove all components from the packaging. Place the Litter-Robot 4 on a firm, level surface. Avoid carpeting or uneven surfaces, as this can affect the accuracy of the weight scale technology. Ensure there is enough space around the unit for proper operation and access.
- Install Waste Drawer Liner: Open the waste drawer located at the bottom front of the unit. Insert one of the provided waste drawer liners, ensuring it fits snugly. Close the drawer.
- Add Litter: Fill the globe with clumping cat litter until it reaches the fill line indicated inside the globe. The Litter-Robot 4 is compatible with any clumping litter. Do not overfill.
- Install OdorTrap Pack and Carbon Filters: Locate the OdorTrap compartment, typically near the waste drawer or at the top of the unit. Insert an OdorTrap pack. Also, ensure the two carbon filters are properly seated in their designated slots, usually at the top of the waste drawer or near the odor control system.
- Attach Ramp and Mat: Position the Litter-Robot 4 Ramp in front of the unit, aligning it with the entrance. Place the LitterTrap Mat directly in front of the ramp or unit entrance to help reduce litter tracking.
- Connect Power: Plug the power adapter into the back of the Litter-Robot 4, then plug the other end into a wall outlet. The unit will perform an initial cycle.
- Download the Whisker App: For enhanced control and monitoring, download the Whisker app from your smartphone's app store. Follow the in-app instructions to connect your Litter-Robot 4.

Figure 2.1: The Litter-Robot 4 with its accompanying ramp and LitterTrap mat, designed for easy access and reduced litter tracking.
3. Operating Your Litter-Robot 4
The Litter-Robot 4 is designed for automatic operation, but understanding its features will optimize your experience.
Automatic Cleaning Cycle
After your cat uses the Litter-Robot, the unit will automatically detect their presence and wait for a preset delay (typically 3, 7, or 15 minutes, adjustable via the app or control panel) before initiating a cleaning cycle. The globe will rotate, sifting the clean litter from the waste, which is then deposited into the waste drawer below. The globe then returns to its home position, leaving a fresh bed of litter for the next use.

Figure 3.1: A cat comfortably using the Litter-Robot 4, demonstrating its ease of access and use. The unit automatically sifts waste after each use.
Whisker App Control and Monitoring
The Whisker app provides real-time insights and control over your Litter-Robot 4:
- Monitor Waste and Litter Levels: Receive notifications when the waste drawer is full or when litter levels are low.
- Track Activity: View your cat's litter box usage history, including cycle counts.
- Weight Tracking: The integrated weight scale technology can track your cat's weight after each use, providing valuable health insights.
- Remote Control: Manually initiate a cycle, pause the unit, or adjust settings from anywhere.
- Customizable Settings: Adjust cycle delay times, night light settings, and more.

Figure 3.2: A smartphone displaying the Whisker app interface, showing historical data for cleaning cycles and other monitoring features for the Litter-Robot 4.
Multi-Cat Households
One Litter-Robot 4 is suitable for up to four cats, eliminating the need for multiple litter boxes. Each cat must weigh at least 3 lbs (1.4 kg) to safely use the Litter-Robot in Automatic Mode.

Figure 3.3: Two cats, one inside the Litter-Robot 4 and another nearby, illustrating its suitability for multi-cat households.
4. Maintenance and Cleaning
Regular maintenance ensures optimal performance and odor control for your Litter-Robot 4.
Emptying the Waste Drawer
When the Whisker app notifies you, or you observe the waste drawer is full, simply pull out the drawer, tie off the liner, and dispose of the waste. Replace with a fresh waste drawer liner. Frequency depends on the number of cats and their usage.
Replacing OdorTrap Packs and Carbon Filters
OdorTrap Packs and carbon filters are crucial for odor reduction. Replace OdorTrap packs monthly or as needed. Carbon filters should be replaced every 3-4 months, or when you notice increased odors.

Figure 4.1: A hand inserting an OdorTrap pack into the Litter-Robot 4, demonstrating the ease of replacing odor control components.
Cleaning the Unit
Periodically, the Litter-Robot 4 globe and base may require cleaning. Use the provided cleaner wipes or a damp cloth with a mild, pet-safe cleaner. Always unplug the unit before cleaning. Do not submerge the unit in water. For a deeper clean, the globe can be removed and rinsed, but ensure it is completely dry before reassembling.
LitterTrap Mat Cleaning
The LitterTrap Mat can be easily cleaned by shaking out trapped litter or rinsing with water. Allow it to dry completely before placing it back.
5. Troubleshooting Common Issues
Here are solutions to common issues you might encounter:
| Problem | Possible Cause | Solution |
|---|---|---|
| Unit not cycling automatically |
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| Excessive odor |
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| Litter tracking outside unit |
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| App connectivity issues |
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6. Product Specifications
| Feature | Detail |
|---|---|
| Brand | Whisker |
| Model | Litter-Robot 4 (Style: LR4) |
| Color | Black |
| Material | Plastic |
| Product Dimensions (L x W x H) | 27"L x 24.25"W x 29.5"H |
| Item Weight | 24 Pounds |
| Litter Box Type | Automated Self-Cleaning Litter Box |
| Minimum Cat Weight | 3 lbs (1.4 kg) for Automatic Mode |
| UPC | 810157861399 |

Figure 6.1: The Litter-Robot 4 integrated into a home environment, highlighting its design and the brand's commitment to innovation.
7. Warranty and Support
Warranty Information
The Litter-Robot 4 comes with a comprehensive WhiskerCare 1-Year Warranty. An extended plan may be available for purchase. This warranty covers defects in materials and workmanship under normal use.
Whisker products may be returned with no cost, but shipping fees may apply. Please refer to the official Whisker website or your purchase documentation for full warranty terms and conditions.
Customer Support
For further assistance, technical support, or to purchase replacement parts and accessories, please visit the official Whisker website or contact their customer service team.
Whisker Official Store: Visit the Whisker Store on Amazon
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