1. Introduction
Thank you for choosing the MORFY Dehumidifier Model BW402. This compact and efficient appliance is designed to reduce excess moisture in small spaces, improving air quality and comfort. Please read this manual thoroughly before operation to ensure proper use, maintenance, and safety.
This manual provides essential information on setting up, operating, maintaining, and troubleshooting your dehumidifier. Keep it for future reference.
2. Safety Instructions
- Always place the dehumidifier on a stable, level surface.
- Ensure the power cord is not damaged or pinched.
- Do not block the air inlet or outlet vents. Maintain at least 4 inches (10 cm) of clearance around the unit.
- Do not immerse the unit, power cord, or plug in water or other liquids.
- Unplug the dehumidifier before cleaning or performing any maintenance.
- This appliance is for indoor use only. Do not use outdoors.
- Keep out of reach of children and pets.
- Do not operate the unit if it has been dropped or damaged. Contact customer support.
- Only use the power adapter provided with the unit.
3. Product Overview
The MORFY BW402 dehumidifier is a compact unit designed for small spaces. It features a transparent water tank, intuitive controls, and an automatic defrost function.

Image 3.1: Front view of the MORFY BW402 Dehumidifier. The unit is gray-blue with a visible water level indicator on the front panel.
Components:
- Air Inlet/Outlet Vents
- Control Panel (Power, Sleep Mode, Light Button)
- Water Tank (1800 ml / 60 oz capacity)
- Power Adapter Port

Image 3.2: Diagram showing the internal dual semiconductor components and airflow path within the dehumidifier, illustrating moisture absorption into the water tank.
4. Setup
4.1 Unpacking
- Carefully remove the dehumidifier and all packaging materials from the box.
- Inspect the unit for any signs of damage. If damaged, do not operate and contact customer support.
- Retain packaging for future storage or transport.
4.2 Placement
Optimal placement is crucial for the dehumidifier's performance.
- Place the unit in a small, enclosed space such as a bedroom, bathroom, kitchen, RV, closet, or laundry room.
- Ensure there is at least 4 inches (10 cm) of space around all sides of the dehumidifier to allow for proper airflow.
- Avoid placing the unit near heat sources, in direct sunlight, or in areas with excessive dust.
- Do not place the unit on soft surfaces that may block the air vents.

Image 4.1: The compact MORFY BW402 Dehumidifier positioned on a small table in a living room, demonstrating its suitable size for various indoor environments. Dimensions are indicated as 6.3 inches wide, 5.3 inches deep, and 11.4 inches high.
4.3 Power Connection
- Ensure the dehumidifier is placed correctly.
- Connect the power adapter to the power port on the back of the unit.
- Plug the power adapter into a suitable electrical outlet.
5. Operating Instructions
5.1 Power On/Off
- To turn on the dehumidifier, press the Power button on the control panel. The indicator light will illuminate.
- To turn off the dehumidifier, press the Power button again.
5.2 Sleep Mode
The Sleep Mode reduces operational noise for undisturbed rest.
- Press the dedicated Sleep Button on the control panel to activate Sleep Mode.
- In Sleep Mode, the dehumidifier operates at approximately 35 dB, and only the working indicator light remains on.
- Press the Sleep Button again to exit Sleep Mode.

Image 5.1: The MORFY BW402 Dehumidifier operating in a bedroom at night, demonstrating its low-noise sleep mode (35dB) and colored night light feature, which can be adjusted for a peaceful environment.
5.3 Customizable Light
The dehumidifier features a customizable light button to select ambient colors or turn the light off.
- Press the Light button to cycle through 7 different ambient colors.
- Continue pressing until the desired color is displayed.
- To turn off the light, cycle through all colors until the light is off.
5.4 Automatic Shut-Off
For safety and convenience, the dehumidifier will automatically turn off when the water tank is full.
- When the water tank is full, the unit will stop operating, and a red indicator light will flash.
- Empty the water tank as described in the Maintenance section to resume operation.
5.5 Automatic Defrost Function
The unit is equipped with an automatic defrost function to prevent frost buildup on the semiconductor components, ensuring consistent performance.
- The dehumidifier will automatically detect and remove frost when necessary.
- During defrosting, the dehumidification process may temporarily pause.

Image 5.2: The MORFY BW402 Dehumidifier shown in a cold environment, highlighting its automatic defrost function which prevents ice buildup on internal components.
6. Maintenance
6.1 Emptying the Water Tank
The transparent 1800 ml (60 oz) water tank allows for easy monitoring of the water level. An ergonomic groove design facilitates removal.
- When the water tank is full, the unit will stop operating, and the red indicator light will flash.
- Gently pull out the water tank from the front of the dehumidifier using the ergonomic groove.
- Carefully pour out the collected water.
- Slide the empty water tank back into the unit until it clicks into place. The dehumidifier will resume operation automatically.
6.2 Cleaning the Unit
Regular cleaning helps maintain optimal performance.
- Always unplug the dehumidifier before cleaning.
- Wipe the exterior of the unit with a soft, damp cloth. Do not use abrasive cleaners or solvents.
- Clean the air inlet and outlet vents with a soft brush or vacuum cleaner attachment to remove dust and debris.
- Rinse the water tank with clean water periodically to prevent mold or mildew growth. Allow it to air dry completely before reinserting.
7. Troubleshooting
If you encounter issues with your MORFY dehumidifier, refer to the following table for common problems and solutions.
| Problem | Possible Cause | Solution |
|---|---|---|
| Dehumidifier does not turn on. | No power supply. | Ensure the power adapter is securely plugged into the unit and a working electrical outlet. |
| Dehumidifier is running but not collecting water. | Low humidity in the room. | The unit will only collect water if the humidity level is above 45% RH. Check room humidity. |
| Room temperature is too low. | The unit operates best in temperatures above 41°F (5°C). Below this, frost may form, and the unit will defrost. | |
| Air vents are blocked. | Ensure air inlet and outlet vents are clear of obstructions. | |
| Red indicator light is flashing. | Water tank is full. | Empty the water tank and reinsert it correctly. |
| Unit is noisy. | Operating in normal mode. | Activate Sleep Mode for quieter operation. |
| Unit not on a level surface. | Place the dehumidifier on a stable, level surface. |
If the problem persists after attempting these solutions, please contact MORFY customer support.
8. Specifications
Detailed technical specifications for the MORFY BW402 Dehumidifier.

Image 8.1: The MORFY BW402 Dehumidifier displaying its precise dimensions: 6.39 inches wide, 5.31 inches deep, and 11.42 inches high.
| Feature | Specification |
|---|---|
| Brand | MORFY |
| Model Name | BW402 Dehumidifier |
| Product Dimensions | 5.3"D x 6.4"W x 11.51"H |
| Item Weight | 3.2 Pounds |
| Water Tank Capacity | 1800 ml (60 Fluid Ounces) |
| Dehumidification Capacity | Up to 25 oz (750 ml) per day (at 86°F, 80% RH) |
| Coverage Area | Up to 500 Square Feet |
| Wattage | 48 watts |
| Noise Level (Sleep Mode) | Approximately 35 dB |
| Special Features | Automatic Defrost, Automatic Shutoff, Portable, Removable Tank, Customizable Light |
| Material | Acrylonitrile Butadiene Styrene (ABS) |
9. Warranty and Support
MORFY is committed to providing high-quality products. For warranty information, product support, or any questions not covered in this manual, please contact MORFY customer service.
Please have your model number (BW402) and purchase information ready when contacting support.
For the most up-to-date support information, visit the official MORFY website or refer to your purchase documentation.