LG Air Purifying AS401WWA1 Manual

The LG Air Purifying AS401WWA1 is a high-performance air purifier with 4-stage filtration system, smart sensors, Wi-Fi connectivity, voice control compatibility, energy-efficient operation, and mobile app control. Features include HEPA filter, deodorization filter, pre-filter, plasma ionizer, air quality indicator, auto mode, sleep mode, timer function, child lock, and filter replacement indicator. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Connecting to Smart Devices 7. Operation Modes 8. Maintenance & Filter Replacement 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: 4-stage filtration system, Smart Control, Air Quality Sensor, Wi-Fi Module, Control Panel, Filter Indicator, Power Cord.

FeatureDescription
4-Stage FiltrationPre-filter, Deodorization filter, HEPA filter, Plasma ionizer
Smart ControlWi-Fi connectivity and mobile app control
Air Quality SensorReal-time air quality monitoring
Control PanelTouch controls for power, fan speed, mode selection
Filter IndicatorLED notification for filter replacement
Power CordFor power connection
Auto ModeAutomatically adjusts fan speed based on air quality
Sleep ModeQuiet operation with dimmed lights
Timer FunctionProgrammable operation schedule
Child LockPrevents accidental setting changes

Installation

Unpack and inspect contents. Place on stable, level surface.

  1. Remove all packaging materials from the air purifier.
  2. Place unit on flat, stable surface away from walls and furniture.
  3. Ensure minimum 20cm clearance on all sides for proper airflow.
  4. Remove protective film from filters before first use.
  5. Plug into standard AC power outlet.

WARNING! Do not place near heat sources or in humid environments. Ensure proper ventilation around unit.

First-Time Setup

Power on air purifier; follow initial setup procedure.

  1. Install filters: Remove rear cover, insert filters in correct order.
  2. Power on: Press POWER button on control panel.
  3. Connect to Wi-Fi: Download LG ThinQ app and follow pairing instructions.
  4. Set preferences: Configure auto mode, timer, and notification settings.
  5. Test operation: Run unit on different fan speeds to ensure proper function.

CAUTION! Handle filters carefully to avoid damage. Ensure filters are properly seated.

Specifications

Controls and Settings

Access controls via touch panel, remote control, or mobile app. Front Panel: POWER, FAN SPEED, MODE, TIMER, CHILD LOCK.

Remote: POWER, FAN SPEED (Low/Medium/High/Turbo), MODE (Auto/Sleep), TIMER, CHILD LOCK, FILTER RESET.

Operation Modes: AUTO (automatic fan adjustment), SLEEP (quiet operation), MANUAL (user-selected speed). Settings: Timer (1-12 hours), Child Lock (prevents accidental changes), Filter Reset (after replacement). Smart Features: Air quality monitoring, Usage reports, Remote control via app.

Connecting to Smart Devices

Wi-Fi: 2.4GHz network required. Mobile: LG ThinQ app. Voice: Compatible with Google Assistant and Amazon Alexa.

  1. Download LG ThinQ app from App Store or Google Play.
  2. Create LG account or sign in to existing account.
  3. Press and hold Wi-Fi button on unit for 3 seconds until indicator blinks.
  4. Follow app instructions to connect to your Wi-Fi network.
  5. For voice control, link LG ThinQ account with your voice assistant app.

Tip: Ensure unit is within range of your Wi-Fi router during setup.

Operation Modes

Supports multiple operation modes for different needs.

  1. Auto Mode: Unit automatically adjusts fan speed based on air quality readings.
  2. Manual Mode: User selects from 4 fan speeds (Low, Medium, High, Turbo).
  3. Sleep Mode: Ultra-quiet operation with dimmed indicator lights.
  4. Turbo Mode: Maximum cleaning power for rapid air purification.
  5. Timer Mode: Set operation duration from 1 to 12 hours.
  6. Child Lock: Prevents accidental setting changes when activated.

WARNING! Do not block air inlet or outlet. Keep unit away from water sources.

Maintenance & Filter Replacement

Filter Replacement Indicator: LED lights when filters need replacement. Filter Life: HEPA filter 12 months, Deodorization filter 6 months (depending on usage).

  1. Turn off and unplug unit before maintenance.
  2. Remove rear cover by pressing release buttons.
  3. Remove old filters and dispose properly.
  4. Install new filters in correct order: Pre-filter → Deodorization filter → HEPA filter.
  5. Replace cover and press FILTER RESET button.

Care & Cleaning

Unplug before cleaning. Clean exterior with soft, dry cloth. Pre-filter can be vacuumed monthly.

CAUTION! Do not use water, chemicals, or abrasive cleaners on unit. Do not immerse in water.

Regulatory Information

CE certified: Complies with European Union safety standards. RoHS compliant: Free of hazardous substances. Energy Class: A rated for energy efficiency. Copyright © 2024 LG Electronics; all rights reserved. For support, visit www.lg.com or contact LG Customer Service at 0800-054-0062 (UK) or 01-237-4777 (Ireland).

Troubleshooting

SymptomPossible CauseCorrective Action
Unit not powering onPower connectionCheck power cord connection; ensure outlet is working.
Poor air purificationDirty filtersClean or replace filters; ensure proper installation.
Loud operation noiseObstructionsCheck for objects blocking air flow; clean filters.
Wi-Fi connection issuesNetwork/setupReset Wi-Fi connection; check router settings; ensure 2.4GHz network.
Filter indicator stays onFilter life/ResetReplace filters if due; press and hold FILTER RESET for 3 seconds.
Unusual odorsNew filters/environmentRun unit on high speed for 2 hours; ensure clean environment.

Reset: Unplug for 1 minute then restart. For network reset: Press Wi-Fi button for 10 seconds.

Service: 0800-054-0062 (UK); 01-237-4777 (Ireland); www.lg.com

LG Air Purifying AS401WWA1 Manual © - All Rights Reserved 2025