Introduction
This manual provides detailed instructions for the safe and efficient operation, maintenance, and troubleshooting of your LIECTROUX YW509 Robot Window Cleaner. Please read this manual thoroughly before using the device and keep it for future reference.

Figure 1: LIECTROUX YW509 Robot Window Cleaner overview.
Important Safety Instructions
Always adhere to the following safety guidelines to prevent injury or damage to the device.
- Ensure the safety rope is securely fastened before each use, especially when cleaning high-rise windows. The device is equipped with a 4m professional safety rope.
- The robot must be connected to a power source during operation. The built-in UPS battery provides approximately 25 minutes of backup power in case of power failure, preventing the robot from falling.
- Do not use the robot on cracked or damaged glass surfaces.
- Keep hands, hair, and loose clothing away from moving parts.
- Do not immerse the device in water or other liquids.
- Supervise children and pets when the robot is in operation.

Figure 2: Safety features including strong suction and safety rope attachment.
Setup and Preparation
Package Contents
Verify that all items are present in the package:
- LIECTROUX YW509 Robot Window Cleaner
- Remote Control
- Power Adapter and Cord (5.2m)
- Safety Rope (4m)
- Microfiber Cleaning Cloths (2 included)
- Water Bottle (for filling tank)
- User Manual
Initial Setup
- Charge the Battery: Although the robot operates while plugged in, ensure the internal UPS battery is charged for emergency power backup. Connect the power adapter to the robot and a power outlet.
- Attach Safety Rope: Securely attach the safety rope to the designated anchor point on the robot and to a sturdy object indoors.
- Install Cleaning Cloths: Attach the microfiber cleaning cloths to the cleaning pads on the bottom of the robot. Ensure they are properly aligned and secured.
- Fill Water Tank: Open the water tank cap and fill with clean water or a suitable window cleaning solution. The robot features built-in large capacity water tanks.
- Power On: Connect the power cord to the robot and a power outlet. Press the power button on the robot or remote control to turn it on.
Operating Instructions
Placing the Robot
Place the robot on the glass surface, ensuring it is flat against the surface. The strong suction power (3000PA) will hold it in place.
Cleaning Modes
The LIECTROUX YW509 offers three automatic cleaning modes and manual control via remote or app:
- N Path: Cleans in an N-shaped pattern, suitable for tall and narrow windows.
- Z Path: Cleans in a Z-shaped pattern, suitable for wide and short windows.
- N+Z Path: Combines both N and Z patterns for comprehensive cleaning, ideal for large windows.

Figure 3: Available cleaning modes for optimal coverage.
Water Spray Function
The robot features dual nozzles that spray water in two directions, ensuring effective cleaning. This function can be activated automatically or manually via the remote control or app.

Figure 4: Advanced window cleaning technologies including dual nozzle spray.

Figure 5: Detailed view of the robot's spraying and operational features.
Starting and Stopping Operation
- Start: Press the 'Start' button on the remote control or within the smartphone application. The robot will automatically detect window frames and obstacles, adjusting its path.
- Pause/Stop: Press the 'Pause' or 'Stop' button on the remote control or app to halt operation.
- Manual Control: Use the directional arrows on the remote control or app for manual navigation.
Surface Compatibility
The LIECTROUX YW509 is designed for various smooth surfaces, including:
- Glass (windows, glass doors, shower screens)
- Tiles
- Marble walls
- Wooden/tile surfaces (smooth)
- Linoleum, Vinyl, Concrete (smooth)

Figure 6: Versatile application across different smooth surfaces.
Maintenance
Cleaning the Robot
- Microfiber Cloths: After each use, remove and wash the microfiber cleaning cloths. They are reusable.
- Robot Body: Wipe the robot's exterior with a soft, dry cloth. Do not use abrasive cleaners or immerse the robot in water.
- Sensors: Periodically clean the sensors located on the edges of the robot to ensure accurate frame detection and obstacle avoidance.

Figure 7: High-density microfiber cleaning cloth for effective dirt removal.
Water Tank
Empty any remaining water from the tank after use. Refill with fresh water or cleaning solution before each new cleaning session.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Robot not sticking to glass. | Insufficient suction; dirty cleaning pads; uneven surface. | Ensure power cord is securely connected. Clean or replace cleaning pads. Ensure surface is smooth and clean. |
| Robot stops unexpectedly. | Power disconnected; low UPS battery; obstacle detected. | Check power connection. Allow UPS battery to charge. Clear any obstacles. |
| Poor cleaning performance. | Dirty cleaning cloths; empty water tank; incorrect cleaning mode. | Replace or wash cleaning cloths. Refill water tank. Select appropriate cleaning mode for the window size. |
| Robot is noisy. | Normal operation sound; loose parts. | Some noise is normal due to the suction motor. Check for any loose components. |
Specifications
| Feature | Detail |
|---|---|
| Brand | LIECTROUX |
| Model Name | YW509 |
| Color | White |
| Material | ABS |
| Product Dimensions | 21.5L x 21.5W x 6.5H cm |
| Item Weight | 4 Kilograms |
| Suction Power | 3000PA |
| Power Source | Corded Electric |
| Controller Type | App Control, Button Control, Remote Control |
| Special Feature | Fall Protection (UPS battery, safety rope) |
| Recommended Surface | Marble, Laminate, Linoleum, Glass, Tile, Wood, Vinyl, Concrete |
Warranty and Support
For warranty information and technical support, please refer to the documentation included with your product or contact the seller directly. The product is sold by LIECTROUX ROBOTICS SA.
Return Policy: The buybox winner indicates a return policy with a duration of 30 days for refund/replacement.
For further assistance, you may visit the official LIECTROUX website or contact their customer service.
Product Videos
No official product videos from the seller were provided in the available data for embedding in this manual.





