1. Introduction
The CoasTeering Nebula Robot Pool Cleaner is designed to provide efficient and autonomous cleaning for your swimming pool. This manual provides essential information for the safe and effective use, maintenance, and troubleshooting of your device. Please read it thoroughly before operating the cleaner.

Image 1.1: The CoasTeering Nebula Robot Pool Cleaner ensures a clean pool with minimal effort.
The Nebula cleaner features advanced navigation, multiple cleaning modes, and a powerful suction system to handle various debris types, ensuring a spotless pool surface and walls.
2. Safety Guidelines
Always adhere to the following safety precautions to prevent injury or damage to the device:
- Do not operate the cleaner if the power cable or charger is damaged.
- Ensure the cleaner is fully submerged in water before activation.
- Keep children and pets away from the pool area while the cleaner is in operation.
- Only use the original charger provided with the device.
- Remove the cleaner from the pool before adding chemicals or performing maintenance.
- Store the cleaner in a cool, dry place away from direct sunlight when not in use.
3. Package Contents
Verify that all components are present in the package:
- CoasTeering Nebula Robot Pool Cleaner
- Charging Adapter
- User Manual
- Filter Basket (pre-installed)

Image 3.1: Components included in the CoasTeering Nebula package.
4. Assembly and Initial Setup
The CoasTeering Nebula cleaner comes pre-assembled. Follow these steps for initial preparation:
- Charge the Robot: Before first use, fully charge the robot. Connect the charging adapter to the robot's charging port and plug it into a power outlet. The LED indicator will show charging status.
- Place in Pool: Gently lower the robot into the pool until it is fully submerged. Ensure there are no air bubbles trapped inside.
- Activate: Press the power button to start the cleaning cycle.

Image 4.1: The Nebula features fast charging, reducing wait time.

Image 4.2: Key features like quick water release and LED indicator for ease of use.
5. Operating Instructions
The CoasTeering Nebula offers various cleaning modes to suit your pool's needs.
5.1 Starting a Cleaning Cycle
- Ensure the robot is fully charged and submerged in the pool.
- Press the power button on the robot to activate it. The robot will automatically begin its cleaning cycle based on the selected mode.
- The robot will automatically park itself near the pool edge when the cleaning cycle is complete or the battery is low.

Image 5.1: The Nebula features one-click activation and auto-parking for user convenience.
5.2 Cleaning Modes
The Nebula robot offers 4 distinct cleaning modes:

Image 5.2: Select from four cleaning modes for customized pool cleaning.
- Intelligent Mode: The robot prioritizes wall and waterline cleaning when the battery is above 50%, then switches to floor cleaning when below 50%. This ensures comprehensive coverage.
- Floor Only Mode: The robot focuses solely on cleaning the pool floor.
- Wall Only Mode: The robot concentrates on cleaning the pool walls and waterline.
- Classic Mode: Provides a standard cleaning pattern for both floor and walls.

Image 5.3: Intelligent Mode adapts cleaning based on battery level.

Image 5.4: Floor Only Mode for focused bottom cleaning.

Image 5.5: Wall Only Mode for targeted wall and waterline cleaning.

Image 5.6: Classic Mode for general pool cleaning.

Image 5.7: The Nebula cleans all areas of your pool, from top to bottom.

Image 5.8: The Nebula can clean up to 180 m² on a single 180-minute charge.

Image 5.9: Enjoy a hassle-free, cordless cleaning experience.
6. Maintenance
Regular maintenance ensures optimal performance and extends the lifespan of your CoasTeering Nebula cleaner.
6.1 Cleaning the Filter Basket
- After each cleaning cycle, remove the robot from the pool.
- Open the robot's cover to access the filter basket.
- Remove the filter basket and empty any collected debris.
- Rinse the filter basket thoroughly with a hose to remove fine particles.
- Reinsert the clean filter basket and close the cover securely.

Image 6.1: The filter basket is easily accessible and simple to clean.
6.2 General Care and Storage
- Wipe the exterior of the robot with a soft cloth after use.
- Ensure the robot is completely dry before storing.
- Store the robot and charger in a cool, dry, and shaded area.
7. Troubleshooting
If you encounter issues with your CoasTeering Nebula, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Robot does not turn on. | Low battery or power button not pressed correctly. | Charge the robot fully. Ensure the power button is pressed firmly. |
| Poor cleaning performance. | Clogged filter basket or debris in brushes. | Clean the filter basket. Inspect and clear any debris from the brushes or suction inlet. |
| Robot gets stuck. | Obstacles in the pool or uneven surfaces. | Remove large obstacles from the pool. The robot is designed to handle most pool types, but extreme unevenness may cause issues. |
| Robot does not climb walls. | Low battery, dirty brushes, or excessive algae. | Ensure the robot is fully charged. Clean the brushes. Address any significant algae growth in the pool. |
8. Technical Specifications
| Feature | Detail |
|---|---|
| Model Number | Nebula |
| Brand | CoasTeering |
| Product Dimensions | 45l x 31w x 45h cm (17.7 x 12.2 x 17.7 inches) |
| Weight | 11 kg (24.25 lbs) |
| Power Source | Battery |
| Special Feature | Wireless |
| Control Method | Application (App) |
| Material | Plastic |
| Battery Life | Up to 180 minutes |
| Charging Time | Approx. 2.5 hours (fast charge) |
| Max Cleaning Area | 180 m² |
| Cleaning Modes | Intelligent, Floor Only, Wall Only, Classic |

Image 8.1: The Nebula's internal components are designed for exceptional lifespan and reliable performance.

Image 8.2: Powerful cleaning performance on all types of pool materials.

Image 8.3: Compatible with all types of pools and surfaces.
9. Warranty and Customer Support
CoasTeering products come with a standard manufacturer's warranty. For specific warranty details, please refer to the warranty card included with your product or visit the official CoasTeering website.
If you require technical assistance, have questions about your product, or need to report an issue, please contact CoasTeering customer support through the following channels:
- Website: Visit the CoasTeering official website for FAQs and support contact information.
- Email: Refer to your product packaging or warranty card for customer service email.