Levoit Humidifier LUH-A603-KCA Manual

The Levoit LUH-A603-KCA is a 6-liter ultrasonic cool mist humidifier with a top-fill design, 360° nozzle, essential oil diffuser tray, three mist levels, auto mode, sleep mode, 1-12 hour timer, touch control panel, remote control, and built-in humidity sensor. It features a night light, low water indicator, and BPA-free water tank. Below are key sections for safety, features, installation, setup, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: 6L BPA-free water tank, ultrasonic mist generator, 360° adjustable nozzle, touch control panel, remote control, essential oil tray, humidity sensor, night light.

Installation & Setup

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

1. Remove all packaging materials from inside and outside the humidifier.
2. Place the base unit on a flat, level surface at least 12 inches from walls.
3. Fill the water tank: Remove tank from base, open top lid, fill with cool tap water (do not exceed MAX line).
4. Reattach tank to base, ensuring it is securely seated.
5. Plug the power adapter into the base unit and then into a standard 120V AC outlet.

WARNING! Do not place on carpets or uneven surfaces. Keep away from children and pets. Use only with provided power adapter.

First-Time Use

Power on the humidifier; follow initial setup steps.

1. Press the POWER button on the control panel or remote to turn on the unit.
2. Select mist level: Press MIST button to cycle through Low, Medium, High.
3. Set desired humidity: In Auto Mode, use +/- buttons to set target humidity (40%-60% recommended).
4. Adjust nozzle direction: Rotate the 360° nozzle to direct mist as needed.
5. Set timer: Press TIMER button to set automatic shut-off (1-12 hours).
6. Activate Sleep Mode: Press SLEEP button to turn off display lights and reduce noise.

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

Specifications

• Model: LUH-A603-KCA
• Tank Capacity: 6 liters (1.6 gallons)
• Coverage Area: Up to 505 sq ft
• Mist Output: Up to 500 mL/hr
• Operation Time: Up to 60 hours on low setting
• Noise Level: ≤ 30 dB (Sleep Mode)
• Power Consumption: 25W
• Power Source: 120V AC, 60Hz
• Water Tank Material: BPA-free plastic
• Dimensions: 11.8" x 7.5" x 11.8"
• Weight: 5.5 lbs (empty)

Controls and Settings

Access all functions via the touch control panel or remote control.

Control Panel Buttons: POWER, MIST (Low/Med/High), AUTO, SLEEP, TIMER (1-12H), NIGHT LIGHT, HUMIDITY +/-.

Remote Control: POWER, MIST, AUTO, SLEEP, TIMER, LIGHT, HUMIDITY +/-, TIMER SET.

Display Icons: Power indicator, Mist level (L/M/H), Auto mode, Sleep mode, Timer countdown, Night light, Current humidity, Low water alert.

Settings: Mist level adjustment, Target humidity (40%-80%), Timer (1-12 hours), Night light (On/Off/Breathing), Sleep mode (display off).

Operation Modes

Three main operating modes for different needs.

1. Manual Mode: Select Low, Medium, or High mist output manually. Press MIST button to cycle.
2. Auto Mode: Unit automatically adjusts mist output to maintain your set humidity level (40%-80%). Press AUTO button to activate.
3. Sleep Mode: Reduces noise to ≤30dB and turns off all display lights while maintaining current settings. Press SLEEP button.

Tip: Use Auto Mode for consistent humidity. Use Sleep Mode in bedrooms for quiet operation.

Maintenance & Cleaning

Regular cleaning prevents mineral buildup and ensures optimal performance.

1. Daily: Empty and refill with fresh water if not used for more than 24 hours.
2. Weekly Cleaning:
   • Unplug the unit and remove water tank.
   • Clean tank with mild soap and warm water. Rinse thoroughly.
   • Wipe base with damp cloth; do not submerge base in water.
   • Clean ultrasonic disc with provided cleaning brush.
3. Monthly Deep Cleaning:
   • Mix 1 cup white vinegar with 1 gallon water.
   • Fill tank halfway with solution, let sit for 15-20 minutes.
   • Scrub interior with soft brush, rinse thoroughly 2-3 times.
4. Filter Replacement: This model is filter-free; no filter replacement needed.

WARNING! Always unplug before cleaning. Never use abrasive cleaners or submerge base unit.

Using Essential Oils

Use the separate essential oil tray for aromatherapy.

1. Ensure humidifier is unplugged and turned off.
2. Pull out the essential oil tray located on the side of the base unit.
3. Add 3-5 drops of pure essential oils to the tray (do not exceed 10 drops).
4. Slide the tray back into place securely.
5. Operate humidifier as normal; mist will carry the aroma.

CAUTION! Never add oils directly to the water tank. This can damage the ultrasonic mechanism and void warranty. Use only pure essential oils.

Care & Storage

Proper care extends product life.

• Always empty water tank completely before storage.
• Clean thoroughly as per monthly cleaning instructions before storing.
• Allow all parts to air dry completely before reassembling.
• Store in original packaging or in a clean, dry place.
• Do not store with water in tank to prevent mold/mildew.

CAUTION! Never store with water in tank. Always unplug before any maintenance.

Regulatory Information

FCC Part 15: Class B digital device; complies with interference limits for residential use. Copyright © 2023 Levoit. All rights reserved. For support, visit support.levoit.com or contact 1-888-726-8520. This product is covered by a 2-year limited warranty. Register your product at levoit.com/warranty.

Troubleshooting

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

Service: 1-888-726-8520; support.levoit.com