Levoit Humidifier LUH-A602S-WUS Manual

The Levoit LUH-A602S-WUS is a 6-liter Ultrasonic Cool Mist Humidifier designed for medium to large rooms. It features a 360° nozzle, adjustable mist levels, a built-in essential oil diffuser, a night light with auto-off timer, a 1-12 hour timer, a humidity sensor, and a top-fill design for easy refilling and cleaning. Below are key sections for safety, features, installation, setup, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: 6L Water Tank, 360° Rotating Nozzle, Control Panel, Essential Oil Tray, Night Light, Air Inlet Filter, and Power Adapter.

Installation & Setup

Unpack and inspect all contents. Place on a stable, flat, level surface away from walls and electronics.

1. Remove the water tank from the base.
2. Fill the tank with clean, cool tap water or distilled water (recommended) up to the MAX line. Do not overfill.
3. Securely place the filled tank back onto the base. Ensure it is properly seated to prevent leaks.
4. Plug the power adapter into the DC input on the humidifier base, then plug the adapter into a standard 120V AC wall outlet.
5. Place the unit at least 12 inches away from walls, furniture, and curtains for optimal mist dispersion.

WARNING! Use only the provided power adapter. Do not place on carpets or uneven surfaces. Keep out of reach of children.

First-Time Use

Power on the humidifier; the display will illuminate.

1. Press the POWER button to turn on the unit. The default mist level is Medium.
2. Adjust the mist output by pressing the MIST button to cycle through Low, Medium, High, and Auto mode.
3. In Auto mode, the built-in sensor will monitor room humidity and adjust mist output to maintain a comfortable level (default 50% RH).
4. Set the timer by pressing the TIMER button to select 1, 2, 4, 8, or 12 hours. The humidifier will automatically shut off when the timer ends.
5. Press the NIGHT LIGHT button to turn the soft blue light on or off.
6. Rotate the 360° nozzle to direct mist away from walls, furniture, and electronics.

CAUTION! Use clean, cool water only. Never add hot water or use additives (except essential oils in the designated tray).

Specifications

• Model: LUH-A602S-WUS
• Tank Capacity: 6 Liters (1.58 Gallons)
• Room Coverage: Up to 505 sq ft (Medium to Large Room)
• Run Time: Up to 60 hours on Low setting
• Mist Output: Up to 500 mL/hr (High setting)
• Humidistat: Built-in sensor for Auto Mode (40%-60% RH range)
• Noise Level: ≤ 30 dB (Quiet)
• Power Input: 24V DC, 1.0A (Adapter: 100-240V AC, 50/60Hz)
• Product Dimensions: 11.8" x 7.9" x 11.8"
• Weight: 5.7 lbs (with empty tank)
• Water Type: Tap or Distilled (Distilled recommended to reduce white dust)

Controls and Settings

Access all functions via the touch control panel on the front of the unit.

Control Panel Buttons:

• POWER: Turns the humidifier on/off.
• MIST: Cycles through mist levels: Low → Medium → High → Auto. In Auto mode, the icon lights up.
• TIMER: Sets auto-off timer: 1H → 2H → 4H → 8H → 12H → OFF. Selected time displays on screen.
• NIGHT LIGHT: Toggles the soft blue night light on/off.
• HUMIDITY SET (Hold MIST for 3 sec in Auto Mode): Adjusts target humidity in Auto mode (40%, 45%, 50%, 55%, 60%).

Display Icons: Power, Mist Level (L/M/H/Auto), Timer, Night Light, Water Drop (Humidity %), and Essential Oil.

Using the Humidifier

For optimal performance and comfort.

1. Daily Operation: Ensure tank is filled. Press POWER. Select desired mist level or use Auto mode.
2. Auto Mode: The unit will automatically adjust mist output to maintain your set humidity level (default 50%). To change the target, hold the MIST button for 3 seconds in Auto mode, then press to cycle through options (40%-60%).
3. Using the Timer: Press TIMER to set a shut-off duration. Ideal for nighttime use or when leaving home.
4. Night Light: Press the NIGHT LIGHT button to enable a soft glow, or turn it off for complete darkness.
5. Refilling: When the water level is low, the display will show a low water icon. Unplug the unit, remove the tank, refill with clean water, and replace.
6. Moving the Unit: Always turn off and unplug before moving. Carry using both hands, one on the base and one on the tank.

Tip: For best results, use distilled water to minimize mineral deposits (white dust) on surfaces.

Using the Essential Oil Diffuser

The dedicated essential oil tray allows for aromatic diffusion.

1. Ensure the humidifier is off and unplugged.
2. Locate the small, removable essential oil tray on the side or top of the base unit.
3. Add 3-5 drops of your preferred 100% pure essential oil into the tray. DO NOT add oil directly into the water tank.
4. Replace the tray securely.
5. Plug in and turn on the humidifier. The mist will carry the aroma into the air.
6. To change scents or stop diffusion, turn off the unit, remove the tray, clean it with water, and refill or leave empty.

WARNING! Use only 100% pure essential oils. Do not use fragrance oils, chemicals, or additives in the water tank, as this can damage the unit and void the warranty.

Maintenance & Cleaning

Regular cleaning prevents mold, bacteria, and mineral buildup. Clean every 1-2 weeks with regular use.

1. Daily: Empty any remaining water from the tank if not in use for more than 24 hours.
2. Weekly Cleaning:
   • Unplug the unit. Remove the water tank and empty all water.
   • Clean the tank with a soft brush or cloth and a mixture of mild dish soap and warm water. Rinse thoroughly.
   • Wipe the base, especially the ultrasonic mist maker (metal disc at the bottom of the base), gently with a soft, damp cloth. Do not submerge the base.
   • Clean the essential oil tray with water and a cotton swab.
   • Allow all parts to air dry completely before reassembling.
3. Descaling (Monthly or as needed): If using tap water, mineral scale may form. Use a 1:1 solution of white vinegar and water. Fill the tank halfway, let sit for 15-20 minutes, then scrub gently. Rinse multiple times until vinegar smell is gone.
4. Storage: Before storing for an extended period, clean thoroughly, dry all parts completely, and store in the original box in a cool, dry place.

CAUTION! Never use abrasive cleaners, bleach, or harsh chemicals. Do not immerse the base unit in water.

Safety Information

• Use only the provided 24V DC power adapter.
• Always unplug the unit before cleaning, refilling, or moving.
• Place on a stable, level, water-resistant surface.
• Keep out of reach of children and pets.
• Do not block the air inlet (bottom) or mist outlet (nozzle).
• Do not operate without water in the tank.
• Do not add medication, chemicals, or any substance other than essential oils (in the designated tray only) to the water.
• If the power cord or adapter is damaged, discontinue use immediately and contact Levoit.
• This appliance is not intended for use by persons with reduced physical, sensory, or mental capabilities.

Regulatory Information

FCC Compliance: This device complies with Part 15 of the FCC Rules. Operation is subject to the condition that this device does not cause harmful interference. ICES-003 Compliance: This Class B digital apparatus complies with Canadian ICES-003. Copyright © Levoit. All rights reserved. Levoit is a registered trademark of VeSync. For support, visit www.levoit.com or contact customer service at 1-866-376-0314.

Troubleshooting

Reset: Unplug the unit for 2 minutes, then plug back in to reset the control system.

Service: For issues not resolved above, contact Levoit Customer Support: 1-866-376-0314 or support.levoit.com. Do not attempt to disassemble or repair the unit yourself.