LG Dehumidifier LD450EAL Owners Manual

The LG Dehumidifier LD450EAL is a high-efficiency 45-pint dehumidifier with electronic controls, auto-restart function, 24-hour timer, continuous drainage option, washable filter, low-temperature operation capability, and energy-saving features. Designed for residential use in basements, bathrooms, and other damp areas up to 3000 sq ft. Below are key sections for safety, features, installation, operation, maintenance, and troubleshooting.

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

Features at a Glance

Key components: Electronic control panel, removable water bucket, continuous drainage port, washable air filter, casters for mobility, and auto-defrost function.

FeatureDescription
Capacity45 pints per day (at 80°F/60% RH)
Control PanelElectronic touch controls with LED display
Water BucketRemovable 1.8-gallon capacity with full indicator
Continuous DrainageGarden hose connection for continuous operation
Air FilterWashable mesh filter for improved air quality
Auto RestartResumes previous settings after power interruption
24-Hour TimerProgrammable on/off timer
Low Temp OperationOperates down to 41°F (5°C)
Auto DefrostPrevents coil freezing in low temperatures
Humidity ControlAdjustable from 35% to 80% relative humidity

Installation

Unpack and inspect contents. Place on level surface with proper clearance.

  1. Remove packaging materials and protective tape.
  2. Position unit: Ensure at least 12 inches clearance from walls and furniture.
  3. Install casters: Attach wheels to bottom of unit if not pre-installed.
  4. Check filter: Ensure air filter is properly seated.
  5. Plug into grounded 120V AC outlet.

WARNING! Do not operate in temperatures below 41°F (5°C). Ensure proper ventilation around unit.

First-Time Setup

Power on dehumidifier; configure initial settings.

  1. Set humidity level: Press HUMIDITY button to select desired level (45-50% recommended).
  2. Configure timer: Press TIMER to set automatic on/off schedule if desired.
  3. Select fan speed: Choose LOW or HIGH fan setting.
  4. Check drainage: Set up bucket or connect continuous drain hose.
  5. Monitor operation: Allow 24 hours for unit to reach optimal performance.

CAUTION! Do not block air intake or exhaust. Keep children and pets away from unit.

Specifications

Controls and Settings

Control Panel: POWER, HUMIDITY SET, FAN SPEED, TIMER, FILTER RESET.

Display Indicators: Current humidity, set humidity, filter alert, bucket full, timer status.

Humidity Control: Adjust between 35-80% RH in 5% increments. Fan Speed: LOW for quiet operation, HIGH for maximum moisture removal. Timer: 24-hour programmable on/off schedule. Auto Restart: Automatically resumes operation after power outage. Filter Reset: Resets filter maintenance reminder after cleaning.

Operation Modes

Normal Mode: Standard dehumidification at set humidity level. Continuous Mode: Runs continuously regardless of humidity level. Laundry Mode: Maximum moisture removal for drying areas. Smart Mode: Automatically adjusts fan speed based on room conditions.

  1. Press POWER to turn unit on.
  2. Select mode using MODE button.
  3. Adjust humidity setting as needed.
  4. Set fan speed for desired airflow.
  5. Monitor water bucket or ensure continuous drain is functioning.

Tip: Close windows and doors for optimal performance.

Maintenance

Regular maintenance ensures optimal performance and longevity.

  1. Clean filter: Remove and wash every 2 weeks or as needed.
  2. Empty bucket: When full indicator lights or bucket is full.
  3. Clean exterior: Wipe with damp cloth when unit is unplugged.
  4. Check coils: Keep evaporator and condenser coils clean.
  5. Inspect drainage: Ensure drain hose is clear and properly connected.
  6. Off-season storage: Clean thoroughly and store in dry location.

WARNING! Always unplug unit before performing maintenance.

Drainage Options

Bucket Drainage: Manual emptying when full indicator lights. Continuous Drainage: Connect garden hose to drain port for automatic water removal.

  1. For bucket use: Ensure bucket is properly seated and locked.
  2. For continuous drain: Attach standard garden hose to drain port.
  3. Position hose: Route to floor drain or suitable drainage area.
  4. Check flow: Ensure downward slope for proper water flow.

CAUTION! Do not lift or move unit while bucket contains water.

Care & Cleaning

Unplug before cleaning. Use mild detergent and soft cloth. Do not use abrasive cleaners.

Filter Cleaning: Remove filter, rinse with warm water, air dry completely before reinstalling.

Bucket Cleaning: Empty and clean with mild detergent monthly to prevent mold.

Exterior Cleaning: Wipe with damp cloth; avoid getting water in control panel.

CAUTION! Do not use harsh chemicals or immerse unit in water.

Regulatory Information

UL Listed: Complies with UL standard 474. Energy Star: Meets ENERGY STAR requirements for energy efficiency. EPA: Refrigerant compliant with EPA regulations. Copyright © 2023 LG Electronics; all rights reserved. For support, visit www.lg.com or contact 1-800-243-0000.

Troubleshooting

SymptomPossible CauseCorrective Action
Unit not startingPower/bucketCheck power connection; ensure bucket is properly seated.
Poor dehumidificationFilter/temperatureClean air filter; check room temperature above 41°F.
Water leakageBucket/drain hoseEnsure bucket is properly positioned; check drain hose connection.
Loud operationSurface/fanPlace on level surface; check for obstructions in fan.
Filter light onDirty filterClean air filter; press FILTER RESET button.
Ice on coilsLow temperatureAuto-defrost should activate; move to warmer area if persistent.

Reset: Unplug for 5 minutes, then restart.

Service: 1-800-243-0000; www.lg.com

LG Dehumidifier LD450EAL Owners Manual © - All Rights Reserved 2025