Levoit Humidifier LUH-A602S-WCA Manual

The Levoit LUH-A602S-WCA is a 6-liter top-fill ultrasonic cool mist humidifier with a 360° nozzle, essential oil tray, night light, auto mode, sleep mode, and touch control panel. It features a 1-12 hour timer, humidity settings (40%-80% RH), and a filter-free design. Below are key sections for safety, features, installation, setup, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: 6L transparent water tank, 360° adjustable mist nozzle, essential oil tray, touch control panel, night light, and built-in humidity sensor.

Installation & Setup

Unpack and inspect all components. Place on a flat, stable, and waterproof surface away from direct sunlight and electronics.

1. Remove all packaging materials from the humidifier and water tank.
2. Place the humidifier base on a level surface at least 12 inches away from walls and furniture.
3. Fill the water tank: Carry tank to sink, remove cap, fill with cool tap water up to MAX line, replace cap securely.
4. Place tank onto base: Align tank with base and set down gently until it clicks into place.
5. Plug power adapter into humidifier DC port, then plug into 120V AC wall outlet.

WARNING! Use only the provided power adapter. Do not place on carpets or uneven surfaces. Ensure the unit is upright before operation.

First-Time Use

Power on the humidifier; the display will illuminate.

1. Press the POWER button to turn on the unit. Default mist level is Medium.
2. Adjust mist output: Press MIST button to cycle through Low, Medium, High, and Auto settings.
3. Set desired humidity: Press HUMIDITY button, then use +/- to set target humidity (40%-80% RH).
4. Set timer: Press TIMER button, then use +/- to set 1-12 hours. The unit will auto shut-off when timer ends.
5. Activate Sleep Mode: Press and hold SLEEP button for 2 seconds to turn off display lights and reduce noise.
6. Adjust nozzle: Rotate the 360° nozzle to direct mist away from walls and furniture.

CAUTION! Use only clean, cool tap water. Do not use hot water or add oils directly into the water tank.

Specifications

• Model: LUH-A602S-WCA
• Tank Capacity: 6 Liters (1.6 Gallons)
• Room Coverage: Up to 505 sq ft
• Run Time: Up to 60 hours on low setting
• Mist Output: Adjustable up to 500 mL/hr
• Noise Level: ≤ 30 dB in Sleep Mode
• Power Input: 24V DC, 1.0A
• Power Consumption: 25W
• Dimensions: 11.8" x 7.9" x 11.8"
• Weight: 5.7 lbs (empty)
• Water Type: Cool tap water (filtered or distilled recommended for hard water areas)

Controls and Settings

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

Control Panel Buttons: POWER, MIST (Low/Med/High/Auto), HUMIDITY, TIMER, SLEEP, NIGHT LIGHT, +/- (Adjust).

Display Icons: Power, Mist Level, Target Humidity, Current Humidity, Timer, Sleep Mode, Night Light, Low Water.

Settings Overview: Mist Level (adjust output), Humidity Setpoint (40%-80%), Timer (1-12h), Sleep Mode (display off, quiet), Night Light (on/off), Auto Mode (maintains set humidity).

Operating Modes

Manual Mode: Select Low, Medium, or High mist output. Use for constant humidification.

Auto Mode: Unit uses built-in sensor to adjust mist output automatically to maintain your set humidity level. Recommended for consistent comfort.

Sleep Mode: Press and hold SLEEP button. Display lights turn off, mist runs at lowest setting, and all sounds are minimized. Ideal for nighttime use.

Timer Mode: Set 1-12 hours. The humidifier will shut off automatically when time elapses.

Tip: Use Auto Mode for energy efficiency and consistent humidity levels.

Maintenance & Cleaning

Regular cleaning prevents mold and mineral buildup. Unplug before cleaning.

1. Daily: Empty and refill tank with fresh water if not used for 24 hours.
2. Weekly Cleaning:
   • Unplug and remove water tank.
   • Mix 1 cup white vinegar with 1 gallon water.
   • Pour solution into tank, swish, and let sit for 15-20 minutes.
   • Use soft brush to clean inner surfaces and ultrasonic disc.
   • Rinse thoroughly 2-3 times with clean water.
   • Wipe exterior with damp cloth; dry completely.
3. Descaling (Monthly or as needed): For hard water areas, use citric acid or manufacturer's descaling solution following package instructions.
4. Storage: Empty all water, clean thoroughly, dry completely, and store in original box in a cool, dry place.

WARNING! Never submerge base in water. Do not use abrasive cleaners or chemicals.

Using Essential Oils

This model includes a separate essential oil tray. Do not add oils directly to water tank.

1. Ensure humidifier is off and unplugged.
2. Pull out the essential oil tray located on the side of the unit.
3. Add 3-5 drops of pure essential oil onto the cotton pad inside the tray (or directly into tray if no pad).
4. Slide tray back into place securely.
5. Operate humidifier as normal. Mist will carry aroma.
6. Clean tray weekly with soapy water to prevent oil residue buildup.

CAUTION! Use only 100% pure essential oils. Synthetic oils may damage the tray. Limit to 5 drops per use.

Safety Information

• Use only the provided 24V DC power adapter.
• Place on a flat, stable, waterproof surface.
• Keep out of reach of children and pets.
• Do not operate without water in the tank.
• Unplug before cleaning, filling, or moving.
• Do not block mist nozzle or air vents.
• Use only cool tap, filtered, or distilled water.
• Do not add medications or chemicals to water.
• If cord is damaged, discontinue use immediately.
• Not for commercial or industrial use.

WARNING! Risk of electric shock. Do not disassemble or attempt repairs.

Regulatory Information

FCC Part 15 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. Copyright © 2023 Levoit. All trademarks are property of VeSync Corp. For support, visit www.levoit.com or contact customer service at 1-866-647-0755.

Troubleshooting

Reset: Unplug for 2 minutes, then restart. For persistent issues, contact customer service.

Service: 1-866-647-0755; www.levoit.com/support