1. Introduction
Thank you for choosing the Grennix Cordless Robotic Pool Cleaner. This device is designed to provide efficient and automatic cleaning for both above-ground and in-ground swimming pools. This manual contains important information regarding the safe operation, setup, maintenance, and troubleshooting of your new pool cleaner. Please read it thoroughly before first use and retain it for future reference.
2. Safety Information
To ensure safe operation and prevent damage to the unit or injury, please adhere to the following safety guidelines:
- Always keep the charging port and charger completely dry when charging the unit. Water contact with electrical components can cause electric shock or damage.
- Do not operate the cleaner if the pool water temperature is outside the recommended range (typically 50°F to 95°F / 10°C to 35°C).
- Ensure the cleaner is fully submerged before powering on to prevent motor damage.
- Keep children and pets away from the pool area when the cleaner is in operation.
- Do not attempt to disassemble or repair the unit yourself. Refer to qualified service personnel for any repairs.
- Only use the original power adapter provided with the cleaner.
Optimal Usage Conditions:
- Ideal for in-ground and above-ground pools with a flat bottom.
- Suitable for pools where the slope gradient is less than 10 degrees.
- Recommended for pools with a size less than 645 square feet (60 square meters).
Unsupported Pool Conditions:
- The cleaner cannot climb walls or steps.
- It is not designed to clean trash floating on the pool surface or very large leaves.
- Avoid using in pools with wrinkles exceeding 10 millimeters or a slope gradient greater than 10 degrees, as the machine may get stuck.
- Not suitable for large pools exceeding 645 square feet (60 square meters).
3. Package Contents
Verify that all items listed below are included in your package:

Figure 3.1: Essential Accessories Included
- 1 x Robotic Pool Cleaner
- 1 x Power Adapter
- 1 x User Manual (this document)
- 1 x Quick Guide
- 1 x Warranty Card
- 3 x Stickers
- 1 x Retrieval Hook
- 1 x Filter
4. Setup
Charging the Unit:
Before first use, fully charge the robotic pool cleaner. The unit requires approximately 2.5 hours for a full charge. Connect the power adapter to the cleaner's charging port and then plug it into a standard electrical outlet. Ensure the charging port and adapter are completely dry before connecting.

Figure 4.1: Battery Life and Charging Indicators
Retrieval Hook Assembly (Optional):
The retrieval hook is designed to assist in removing the cleaner from the pool. It requires a universal connector pick-up pole with a diameter of 1-1/4 inches, which is a standard size for pool accessories. Please note that an aluminum telescopic swimming pool pole is not included in the package and must be purchased separately.

Figure 4.2: Using the Retrieval Hook
5. Operating Instructions
Starting Operation:
The Grennix Cordless Robotic Pool Cleaner is designed for simple operation. Once fully charged, simply power it on and gently place it into the pool water. The cleaner will automatically begin its cleaning cycle.

Figure 5.1: Placing the Cleaner in Water
Cleaning Performance:
Equipped with a powerful brushless motor, this robotic pool cleaner delivers 6000Pa of suction power, ensuring effective removal of debris from your pool floor. It features a filtering accuracy of up to 80 microns, leaving your pool water sparkling clean.

Figure 5.2: Strong Suction Power
Automatic Parking and Battery Life:
The cleaner is intelligently programmed to automatically dock itself when the cleaning cycle is complete or when the battery level is low. A full charge provides up to 65 minutes of continuous operation, making it suitable for cleaning various pool sizes.

Figure 5.3: Automatic Parking Feature
Pool Compatibility:
The Grennix robotic pool cleaner is compatible with a wide range of pool types, including all pool shapes, flat-bottom pools with a slope of 10 degrees or less, in-ground pools, above-ground pools, and indoor swimming pools. It is designed for pools up to 645 square feet (60 square meters).

Figure 5.4: Compatible Pool Types
6. Maintenance
Cleaning the Filter:
Regularly clean the filter to maintain optimal cleaning performance. After each use, remove the filter from the unit and rinse it thoroughly with a hose to remove collected debris. Ensure the filter is completely dry before reinserting it into the cleaner.

Figure 6.1: Cleaning the Filter
General Cleaning and Storage:
After each use, rinse the exterior of the cleaner with fresh water to remove any pool chemicals or debris. Store the cleaner in a cool, dry place away from direct sunlight and extreme temperatures. Ensure the unit is fully charged before long-term storage to preserve battery health.

Figure 6.2: Removing Cleaner for Maintenance
7. Troubleshooting
If you encounter issues with your Grennix Robotic Pool Cleaner, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Cleaner not turning on or short run time. | Low battery; improper charging; battery degradation. | Ensure unit is fully charged (2.5 hours). Verify charger connection. If issues persist, contact support. |
| Cleaner gets stuck or moves erratically. | Pool slope too steep (>10°); pool liner wrinkles (>10mm); obstacles in pool. | Ensure pool conditions meet specifications (flat bottom, slope <10°). Remove large obstacles. |
| Poor cleaning performance (debris not picked up). | Clogged filter; large debris type; unit not suitable for pool size. | Clean the filter thoroughly after each use. Note that the cleaner is not designed for very large leaves or floating trash. Ensure pool size is within 645 sq ft. |
| Unit does not automatically park. | Battery completely depleted; sensor obstruction. | Ensure unit is charged. Check for debris obstructing sensors. Manually retrieve if necessary. |

Figure 7.1: Supported vs. Unsupported Pool Conditions
8. Specifications
Detailed technical specifications for the Grennix Cordless Robotic Pool Cleaner:
| Feature | Specification |
|---|---|
| Brand | Grennix |
| Model Name | ROKER |
| Item Model Number | RKVC-YC003 |
| Power Source | AC/DC |
| Special Feature | Cordless |
| Control Method | Touch |
| Assembly Required | No |
| Battery Type | Lithium-Ion (1 included) |
| Battery Capacity | 2600 Milliamp Hours (mAh) |
| Battery Weight | 145 Grams |
| Charging Time | 2.5 Hours |
| Running Time | Up to 65 minutes |
| Suction Power | 6000Pa |
| Filtering Accuracy | Up to 80 microns |
| Load Capacity | 4.4 Pounds |
| Material | Plastic |
| Color | WHITE1 |
| Product Dimensions (L x W x H) | 13.5 x 13.5 x 8.2 inches |
| Item Weight | 12.87 pounds |
| UPC | 742009874717 |
| ASIN | B0D4LFVW8Z |
9. Warranty and Support
The Grennix Cordless Robotic Pool Cleaner comes with a limited warranty. Please refer to the included warranty card in your package for specific terms, conditions, and duration of coverage. For technical support, service inquiries, or to report any issues not covered in the troubleshooting section, please contact Grennix customer service through the contact information provided on your warranty card or the official Grennix website.

