Important Safety Information
Please read all instructions carefully before operating the dehumidifier. Keep this manual for future reference.
- CAUTION: Ensure the water pipe switch is tightened when using the tank to avoid leakage.
- DANGER - Risk Of Fire Or Explosion: Flammable Refrigerant Used. To Be Repaired Only By Trained Service Personnel. Do Not Puncture Refrigerant Tubing.
- Dispose Of Property In Accordance With Federal Or Local Regulations.
- Always unplug the unit before cleaning or performing any maintenance.
- Do not operate the unit with a damaged cord or plug.
Product Overview
The HBN FDD25-5259 Dehumidifier is engineered to efficiently remove up to 80 pints of moisture per day (AHAM: 86℉, 90%RH), ensuring a dry, comfortable environment in spaces up to 5000 Sq. Ft. It effectively adjusts humidity levels between 30% and 80%, providing optimal air quality for your home or workplace.

Key Features
- High Dehumidification Capacity: Removes up to 80 pints of moisture per day (Standard 53 pints/day AHAM) for areas up to 5000 sq. ft.
- Energy-Efficient Performance: Features a smart chip, proprietary algorithm, high-efficiency rotary compressor, "3+2" evaporator-condenser structure, 7mm copper pipes, and blue hydrophilic aluminum foil for maximum heat exchange efficiency. Includes auto-defrost and self-drying functions.
- Intuitive Smart Control Panel: User-friendly touch control panel with a digital display for real-time humidity monitoring and a built-in 24-hour timer.
- Customizable Modes: Offers 3 adjustable fan speeds (high, medium, low) and four operational modes: Normal, Continuous, Strong, and Dry Clothes.
- Ultra-Quiet Operation: Designed for minimal noise, making it suitable for bedrooms, nurseries, and other quiet spaces.
- Portable Convenience: Equipped with smooth-rolling casters and a handy carrying handle for easy relocation.
- Child Lock Feature: Ensures secure operation in homes with young children.
- Flexible Drainage Options: Includes a 6ft drain hose for continuous drainage or a 6.5-liter (1.71-gallon) water tank for manual emptying.
- Easy Maintenance: Features a removable and washable filter for fresh, healthy air.
Components and Controls

The dehumidifier features an intuitive touch control panel located on the top of the unit. This panel allows you to easily adjust settings and monitor the unit's status.
- Digital Display: Shows real-time humidity levels and other settings.
- Child Lock Button: Locks the control panel to prevent accidental changes.
- Timer Button: Sets the 24-hour on/off timer.
- Fan Button: Activates fan-only mode.
- Humidity Setting Button: Adjusts the desired humidity level.
- Fan Speed Button: Cycles through high, medium, and low fan speeds.
- Sleep Button: Activates ultra-quiet sleep mode.
- Dehumidify Mode Button: Selects between Normal, Continuous, Strong, and Dry Clothes modes.
- Stand-by Button: Powers the unit on or off.

Setup
Unpacking
Carefully remove the dehumidifier from its packaging. Ensure all components, including the drain hose and user manual, are present.
Placement
Place the dehumidifier on a level surface in the area where moisture removal is desired. Ensure there is at least 8 inches (20 cm) of space around the unit for proper airflow.
Power Connection
Plug the power cord into a grounded electrical outlet. The unit is now ready for operation.
Operating Instructions
Powering On/Off
Press the Stand-by button on the control panel to turn the unit on or off.
Setting Humidity Level
Press the Humidity Setting button to adjust your desired humidity level (between 30% and 80%). The unit will automatically operate to maintain this level.

Selecting Operating Mode
Press the Dehumidify Mode button to cycle through the available modes:
- Normal: Standard dehumidification for everyday use.
- Continuous: Runs continuously regardless of humidity level.
- Strong: Provides maximum dehumidification power.
- Dry Clothes: Helps to dry laundry faster by removing moisture from the air.

Fan Speed Adjustment
Press the Fan Speed button to select your preferred fan speed: high, medium, or low.
Timer Function
Use the Timer button to set an automatic on or off time for the unit, up to 24 hours.
Sleep Mode
Activate Sleep Mode for ultra-quiet operation, ideal for nighttime use. The display lights will dim for minimal disturbance.

Child Lock
Press and hold the Child Lock button for a few seconds to activate or deactivate the child lock feature, preventing unintended changes to settings.
Maintenance
Emptying the Water Tank
When the 1.71-gallon water tank is full, the unit will automatically shut off and an indicator light will illuminate. Carefully pull out the water tank from the back of the unit using its handle and empty the collected water. Reinsert the tank securely.

Continuous Drainage Setup
For continuous drainage, connect the provided 6ft drain hose to the drainage port located on the back of the unit. Ensure the hose is properly secured and directed to a suitable drain or floor drain to allow water to flow out continuously.
Cleaning the Air Filter
The removable filter should be cleaned regularly (approximately every two weeks, depending on usage) to ensure optimal performance and air quality. To clean:
- Turn off and unplug the dehumidifier.
- Gently pull out the filter from the back of the unit.
- Rinse the filter under running water to remove dust and debris.
- Allow the filter to air dry completely before reinserting it into the unit.

Troubleshooting
If you encounter any issues with your HBN dehumidifier, please refer to the following common problems and solutions:
- Unit does not turn on: Check if the power cord is securely plugged into a working outlet. Ensure the water tank is not full and properly seated.
- No dehumidification: Verify that the desired humidity level is set lower than the current room humidity. Clean the air filter if it is dirty.
- Unusual noise: Ensure the unit is placed on a stable, level surface. Check for any obstructions in the air inlet or outlet.
- Water leakage: Confirm that the water tank is correctly inserted and the continuous drainage hose (if used) is securely connected and not kinked.
For further assistance, please contact HBN official technical support.
Specifications
| Feature | Specification |
|---|---|
| Brand | HBN |
| Model Name | FDD25-5259 |
| Floor Area Coverage | Up to 5000 Square Feet |
| Dehumidification Capacity | 80 Pints/Day (Standard 53 Pints/Day) |
| Water Tank Volume | 1.71 Gallons (6.5 Liters) |
| Product Dimensions | 9.45"D x 13.39"W x 22.44"H |
| Item Weight | 30.9 Pounds |
| Wattage | 400 watts |
| Number of Speeds | 3 |
| Included Components | Drain Hose, User Manual |
| Special Features | Timer, Child Lock, Sleep Mode, Wind speed/mode adjustment |
| Operation Mode | Touch control panel |
Warranty and Support
For warranty information, technical support, or any product-related inquiries, please refer to the contact details provided in the included user manual or visit the official HBN website.
Always ensure you have your product model number (FDD25-5259) and purchase date available when contacting support.





