Important Safety Instructions
Please read all instructions carefully before using the Konwin Mini Air Cooler AC-803. Retain this manual for future reference.
- Electrical Safety: Ensure the power source matches the DC5V 1.5-2.1A input requirement. Use only the provided USB cable. Do not operate with a damaged cord or plug.
- Water Handling: Do not overfill the water tank. Always unplug the unit before filling, emptying, or cleaning the water tank. Avoid spilling water on electrical components.
- Placement: Place the unit on a stable, flat, and level surface to prevent water leakage. Do not block air inlets or outlets. Keep away from direct sunlight and heat sources.
- General Use: This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety.
- Cleaning: Unplug the unit before cleaning. Use a soft, damp cloth. Do not immerse the unit in water or other liquids.
Product Overview
The Konwin Mini Air Cooler AC-803 is a compact, multifunctional device designed for personal air cooling and humidification in small spaces. It features a 400ML water tank, three fan speeds, and seven color LED lights.

Image: Front view of the Konwin Mini Air Cooler AC-803, showcasing its compact design and illuminated fan grille.
Key Features:
- USB plug-in for convenient power.
- Three adjustable fan speed settings.
- Seven selectable backlight colors for ambient lighting.
- Functions as both an air cooler and a humidifier.
- Compact and lightweight design, suitable for small rooms.
- Integrated 400ML water tank.
Package Contents
Verify that all items are present in the package:
- Konwin Mini Air Cooler Unit
- Integrated 400ML Water Tank
- 1-meter USB Line
- Instruction Manual (this document)
Setup
- Unpack the Unit: Carefully remove the air cooler from its packaging.
- Placement: Place the unit on a firm, level surface in the desired location. Ensure there is adequate space around the unit for proper airflow.
- Fill Water Tank:
- Locate the water tank opening, typically at the top or side of the unit.
- Slowly pour clean, cool water into the tank, being careful not to exceed the maximum fill line (400ML capacity).
- Ensure the water tank cap or cover is securely closed after filling.
- Connect Power: Insert the small end of the 1-meter USB line into the USB port on the air cooler. Plug the other end of the USB line into a compatible DC5V 1.5-2.1A USB power adapter (not included) or a powered USB port.
Operation
Once the unit is set up and powered, you can begin operation using the control buttons.
- Power On/Off: Press the power button (usually indicated by a power symbol) to turn the unit on. Press it again to turn the unit off.
- Adjust Fan Speed: Press the fan speed button (often indicated by fan blades or "SPEED") to cycle through the three available fan speeds: Low, Medium, and High.
- Change LED Light Color: Press the light button (often indicated by a light bulb symbol or "LED") to cycle through the seven available backlight colors. Pressing it repeatedly will change the color or turn the light off.
- Humidification: The humidification function typically activates automatically when water is present in the tank and the unit is running. Ensure the water tank is filled for humidification.
Maintenance
Regular maintenance ensures optimal performance and longevity of your air cooler.
- Cleaning the Exterior: Unplug the unit before cleaning. Use a soft, slightly damp cloth to wipe down the exterior surfaces. Do not use abrasive cleaners or solvents.
- Water Tank Cleaning:
- Empty any remaining water from the tank regularly, especially if the unit will not be used for an extended period.
- Rinse the water tank with clean water. For thorough cleaning, a mild detergent can be used, followed by a complete rinse to remove all soap residue.
- Allow the tank to air dry completely before refilling or storing the unit.
- Air Filter (if applicable): While this model does not specify a removable air filter, ensure the air intake and outlet grilles are free from dust and debris. Use a soft brush or vacuum cleaner attachment if necessary.
- Storage: If storing the unit for a long period, ensure the water tank is empty and dry. Store in a cool, dry place away from direct sunlight.
Troubleshooting
Refer to the following table for common issues and their solutions.
| Problem | Possible Cause | Solution |
|---|---|---|
| Unit does not turn on. | No power supply or loose connection. | Ensure the USB cable is securely connected to both the unit and a powered USB port/adapter. Verify the power source is active. |
| No mist or humidification. | Water tank is empty or low. | Refill the water tank with clean water. |
| Fan is weak or not blowing. | Air inlets/outlets blocked; fan speed set too low. | Check for obstructions around the unit. Increase the fan speed setting. |
| LED light not working. | Light function is off or unit is off. | Ensure the unit is powered on. Press the LED light button to activate or cycle through colors. |
Specifications
| Feature | Detail |
|---|---|
| Brand | Konwin |
| Model Name | AC-803 |
| Dimensions (L x W x H) | 16.5 cm x 16.5 cm x 16.5 cm (6.5 in. x 6.5 in. x 6.5 in.) |
| Material | Acrylonitrile Butadiene Styrene (ABS) |
| Input Power | DC5V 1.5-2.1A (USB plug-in) |
| Water Tank Capacity | 400ML |
| Fan Speeds | 3 (Low, Medium, High) |
| LED Lights | 7 color options |
| Controls Type | Button |
| Wattage | 5 watts |
| Noise Level | 50 Decibels |
| Recommended Use | Personal air cooling and humidification in small spaces |
| Included Components | Air cooler unit, 400ML water tank, 7 color LED light, 1M USB line |
Warranty and Support
Information regarding product warranty and customer support was not provided in the available product data. Please refer to the product packaging or contact the retailer where the Konwin Mini Air Cooler AC-803 was purchased for details on warranty coverage and support options.





