LG Electronics LD451EGL 45-Pint Dehumidifier Manual

The LG Electronics LD451EGL is a 45-pint capacity dehumidifier designed for medium to large rooms up to 2,000 square feet. Features include electronic controls, 24-hour timer, auto-restart function, continuous drainage option, washable filter, auto-defrost system, and energy-efficient operation. 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 and Cleaning 8. Water Drainage Options 9. Care & Storage 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Electronic control panel, water tank with full indicator, continuous drainage port, washable air filter, casters for mobility, and auto-defrost system.

Feature	Description
Dehumidification Capacity	45 pints per day at 65°F, 60% RH
Coverage Area	Up to 2,000 square feet
Water Tank Capacity	1.8 gallons with full indicator
Continuous Drainage	Garden hose connection option
Air Filter	Washable mesh filter
Auto Defrost	Prevents coil freezing in low temperatures
Timer Function	24-hour programmable timer
Auto Restart	Resumes previous settings after power outage
Humidity Control	35% to 80% RH settings
Energy Efficiency	Energy Star certified

Installation

Unpack and inspect contents. Place on level surface away from walls and furniture.

Remove packaging materials and protective tape from unit.
Position unit on level floor with at least 12 inches clearance on all sides.
Install casters if not pre-installed for mobility.
For continuous drainage: Connect standard garden hose to drain port.
Plug into grounded 120V AC outlet.

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

First-Time Setup

Power on dehumidifier; configure initial settings.

Check that water tank is properly seated and empty.
Plug unit into grounded electrical outlet.
Press POWER button to turn on unit.
Set desired humidity level using HUMIDITY control (35%-80% RH).
Select fan speed: HIGH for maximum dehumidification, LOW for quiet operation.
Set timer if needed using 24-hour timer function.

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

Specifications

Model: LD451EGL
Dehumidification Capacity: 45 pints per day (at 65°F, 60% RH)
Coverage Area: Up to 2,000 square feet
Water Tank Capacity: 1.8 gallons
Power Requirements: 120V, 60Hz, 4.5A
Energy Consumption: 480 watts
Noise Level: 52 dB on high setting
Refrigerant: R410A
Dimensions: 15.4" W x 11.4" D x 24.3" H
Weight: 41.9 lbs
Operating Temperature: 41°F to 95°F

Controls and Settings

Electronic control panel with LED display and touch buttons.

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

Humidity Control: Adjustable from 35% to 80% RH in 5% increments. Fan Speed: HIGH for maximum performance, LOW for quiet operation. Timer: 24-hour programmable on/off timer. Filter Indicator: Lights when filter needs cleaning. Auto Restart: Automatically resumes operation after power interruption. Auto Defrost: Activates when coil temperature drops below freezing.

Operation Modes

Multiple operating modes for different needs.

Continuous Mode: Runs continuously until manually turned off or tank is full.
Auto Mode: Maintains set humidity level automatically.
Turbo Mode: Maximum dehumidification with high fan speed.
Quiet Mode: Reduced noise operation with lower fan speed.
Laundry Mode: Optimized for drying laundry in enclosed spaces.

Tip: Use Auto Mode for energy-efficient operation and optimal comfort.

Maintenance and Cleaning

Regular maintenance ensures optimal performance and longevity.

Water Tank: Empty and clean weekly with mild detergent.
Air Filter: Clean every 2-4 weeks; wash with warm water and mild soap.
Exterior: Wipe with soft, damp cloth; do not use harsh chemicals.
Coils: Vacuum condenser coils every 3 months.
Drain Hose: Check for clogs monthly if using continuous drainage.

WARNING! Always unplug unit before cleaning. Do not immerse in water.

Water Drainage Options

Two methods for water removal: manual tank emptying or continuous drainage.

Manual Tank: Unit automatically shuts off when tank is full; red indicator light illuminates.
Continuous Drainage: Connect standard garden hose to drain port for unattended operation.
Gravity Drainage: Ensure drain hose runs downward without kinks or loops.
Drain Location: Position hose to drain into floor drain, sink, or outdoors.

CAUTION! Ensure proper drainage slope; do not elevate drain hose above unit.

Care & Storage

Proper storage procedures for seasonal use.

Unplug unit and empty water tank completely.
Clean air filter and water tank thoroughly.
Wrap power cord neatly and secure with twist tie.
Store in upright position in dry, protected area.
Cover unit to prevent dust accumulation.

CAUTION! Store in temperature-controlled environment above 32°F.

Regulatory Information

UL Listed and Energy Star certified. Complies with FCC Part 15 regulations. Manufactured by LG Electronics. For technical support, contact LG Customer Service at 1-800-243-0000 or visit www.lg.com. This product contains R410A refrigerant. Do not vent refrigerant to atmosphere.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Unit not running	Power issue/tank full	Check power connection; empty water tank; reset circuit breaker.
Red light flashing	Water tank full/filter dirty	Empty water tank; clean or replace air filter.
Poor dehumidification	Room temperature/filter	Ensure room temp above 41°F; clean air filter; check room size.
Unit freezing up	Low temperature	Auto-defrost should activate; move to warmer area if persistent.
Water leakage	Tank/drain issues	Ensure tank properly seated; check drain hose for kinks/leaks.
Unusual noise	Fan/component issue	Check for obstructions; ensure unit on level surface; contact service.

Reset: Unplug for 10 minutes, then restart if unit malfunctions.

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