1. Introduction
Thank you for purchasing the Rosewill RHHD-14002 Ultrasonic Humidifier. This device is designed to add moisture to the air, helping to alleviate dry air conditions. Please read this manual thoroughly before operation to ensure safe and efficient use of your humidifier. Keep this manual for future reference.
Important Safety Instructions
- Always place the humidifier on a firm, flat, water-resistant surface away from walls and heat sources.
- Do not operate the humidifier without water in the tank.
- Do not add essential oils or medication directly into the water tank or base.
- Unplug the unit before filling, cleaning, or moving.
- Keep out of reach of children and pets.
- Do not block the mist outlet.
- Use only clean, cool tap water. Distilled or demineralized water is recommended to prevent mineral buildup.
2. Package Contents
Carefully unpack your humidifier and check that all items are present and in good condition. If any items are missing or damaged, please contact customer support.
- Rosewill RHHD-14002 Ultrasonic Humidifier Unit (Base and Water Tank)
- Dual Mist Nozzle
- User Manual
Figure 2.1: Humidifier, user manual, and packaging box.
3. Product Components
Familiarize yourself with the different parts of your humidifier before use.
Figure 3.1: Side view of the humidifier.
- Mist Nozzle: Adjustable dual outlets for mist direction.
- Water Tank: Transparent blue tank for water storage.
- Base Unit: Contains the ultrasonic transducer, fan, and control knob.
- Control Knob: Adjusts mist output and powers the unit on/off.
- Power Indicator Light: Illuminates when the unit is operating.
- Water Inlet Cap: Located at the bottom of the water tank for refilling.
4. Setup
- Placement: Place the humidifier on a flat, stable, water-resistant surface at least 12 inches (30 cm) away from walls, furniture, and electronics. Ensure it is not placed on carpet or near heat sources.
- Fill Water Tank:
- Remove the water tank from the base unit.
- Invert the water tank and unscrew the water inlet cap.
- Fill the tank with clean, cool tap water. Distilled or demineralized water is recommended to minimize mineral dust. Do not fill with hot water.
- Securely screw the water inlet cap back onto the tank.
- Place the filled water tank back onto the base unit, ensuring it is seated correctly.
- Attach Mist Nozzle: Place the dual mist nozzle onto the top of the water tank. You can rotate the nozzles to direct the mist as desired.
- Connect Power: Plug the power cord into a standard electrical outlet.
Figure 4.1: Humidifier with power cord.
5. Operating Instructions
- Power On/Off: Turn the control knob clockwise to the "ON" position. The power indicator light will illuminate, and mist will begin to emit. To turn off, rotate the control knob counter-clockwise until it clicks to the "OFF" position.
- Adjust Mist Output: Continue rotating the control knob clockwise to increase the mist output. Rotate counter-clockwise to decrease the mist output.
- Adjust Mist Direction: The dual mist nozzles can be rotated independently 360 degrees to direct the mist in desired directions.
- Low Water Shut-off: The humidifier will automatically shut off when the water level in the tank is too low. The power indicator light may change or turn off. Refill the water tank to resume operation.
Figure 5.1: Humidifier in operation, showing mist output.
Figure 5.2: Top view showing the control knob and mist outlets.
6. Maintenance
Regular cleaning is essential for optimal performance and to prevent mineral buildup and bacterial growth.
Daily Maintenance
- Unplug the humidifier.
- Empty any remaining water from the tank and base.
- Rinse the water tank and base with fresh water.
- Allow all parts to air dry before reassembly or storage.
Weekly Cleaning (or every 3-5 days with hard water)
- Unplug the humidifier.
- Remove the water tank and mist nozzle.
- Cleaning the Water Tank: Fill the tank with a mixture of 2 tablespoons of white vinegar and 1 gallon of water. Let it stand for 20 minutes, then rinse thoroughly with clean water.
- Cleaning the Base Unit: Gently wipe the inside of the base with a soft cloth dampened with white vinegar. Pay special attention to the ultrasonic transducer (the small disc in the center of the base). Do not scrub or use abrasive cleaners. Rinse the base thoroughly with clean water, being careful not to immerse the base in water or get water into the air outlet.
- Descaling: For stubborn mineral deposits, fill the base with undiluted white vinegar and let it soak for 20 minutes. Gently wipe away deposits with a soft brush or cloth. Rinse thoroughly.
- Allow all parts to air dry completely before reassembling.
Storage
When storing the humidifier for an extended period, ensure all parts are clean and completely dry. Store in a cool, dry place, preferably in its original packaging.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No mist or very little mist. |
|
|
| Unusual odor. |
|
|
| Water leakage. |
|
|
| White dust around the humidifier. | Hard water mineral content. | Use distilled or demineralized water. Clean the unit regularly. |
8. Specifications
| Feature | Detail |
|---|---|
| Brand | Rosewill |
| Model Number | RHHD-14002 |
| Operation Mode | Ultrasonic |
| Special Feature | Quiet |
| Capacity | 1.3 Gallons |
| Floor Area Coverage | 250 Square Feet |
| Control Method | Dial Knob |
| Item Weight | 1.89 kg (1 kg 890 g) |
| Item Dimensions (LxWxH) | 34.2 x 24.8 x 24.8 Centimeters |
9. Warranty and Support
Rosewill products are manufactured to high-quality standards. For information regarding warranty coverage, technical support, or service inquiries, please refer to the warranty card included with your purchase or visit the official Rosewill website. Please have your model number (RHHD-14002) and purchase date available when contacting support.
Rosewill Official Website: www.rosewill.com
