LG AC Window Unit Manual

The LG AC Window Unit is a high-efficiency air conditioning system designed for residential and light commercial use. This unit features digital temperature control, multiple fan speeds, energy-saving mode, sleep timer, remote control operation, washable air filter, auto-restart function, and low noise operation. Designed for 115V AC power with EER rating up to 12.0. Below are key sections for safety, features, installation, setup, operation, maintenance, and troubleshooting.

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

Features at a Glance

Key components: Digital control panel, Remote Control, Washable air filter, Exhaust vent, Temperature sensor, Drain outlet.

Feature	Description
Cooling Capacity	8,000 - 12,000 BTU/h range
Energy Efficiency	EER up to 12.0
Fan Speeds	3-speed settings (Low, Medium, High)
Operating Modes	Cool, Fan Only, Dry, Auto
Timer Function	24-hour programmable timer
Sleep Mode	Automatic temperature adjustment
Air Filter	Washable mesh filter
Remote Control	Full function remote with LCD display
Auto Restart	Resumes previous settings after power outage
Noise Level	As low as 52 dB on low setting

Installation Requirements

Unpack and inspect contents. Ensure proper window dimensions and electrical requirements.

Window Requirements: Minimum 23" x 14" opening, maximum 36" x 16" opening
Electrical Requirements: 115V AC, 60Hz, 15A dedicated circuit
Installation Kit: Includes mounting brackets, side panels, and seal strips
Clearance: Minimum 20" clearance on all sides for proper airflow

WARNING! Unit weighs 45-65 lbs; use two people for installation. Ensure proper support to prevent falling.

First-Time Setup

After installation, perform initial setup for optimal performance.

Power on unit: Plug into dedicated 115V outlet
Initial settings: Set temperature to 72°F, fan to AUTO mode
Remote pairing: Point remote at unit, press POWER button to sync
Test functions: Verify cooling, fan speeds, and timer operation
Filter check: Ensure air filter is properly seated

CAUTION! Allow unit to sit upright for 2 hours after moving before first use.

Specifications

Cooling Capacity: 8,000 - 12,000 BTU/h
Power Source: 115V AC, 60Hz
Amperage: 7.5 - 10.5 Amps
EER Rating: 10.8 - 12.0
Noise Level: 52 - 62 dB
Refrigerant: R-410A
Air Flow: 350 - 450 CFM
Dimensions: 19.5" H x 23.5" W x 19" D
Weight: 45 - 65 lbs
Warranty: 1 year parts, 5 years compressor

Controls and Settings

Access controls via front panel or remote control. Front Panel: POWER, MODE, FAN SPEED, TEMP UP/DOWN, TIMER.

Remote: POWER, MODE (Cool/Fan/Dry/Auto), TEMPERATURE, FAN SPEED, TIMER, SLEEP, SWING, FILTER RESET.

Temperature Range: 62°F - 86°F. Fan Speeds: Low, Medium, High, Auto. Modes: Cool - standard cooling; Fan - circulation only; Dry - dehumidification; Auto - automatic mode selection. Timer: 24-hour programmable on/off. Sleep Mode: Gradually adjusts temperature overnight.

Operation Modes

Multiple operating modes for different comfort needs.

Cool Mode: Standard air conditioning with temperature control
Fan Mode: Air circulation without cooling
Dry Mode: Dehumidification with minimal cooling
Auto Mode: Automatically selects mode based on room conditions
Energy Saver: Compressor cycles off when temperature is reached
Sleep Mode: Temperature adjusts +2°F after 1 hour, +2°F after second hour

Tip: Use Auto mode for optimal energy efficiency in moderate conditions.

Maintenance Procedures

Regular maintenance ensures optimal performance and longevity.

Filter Cleaning: Clean every 2 weeks during heavy use
Exterior Cleaning: Wipe cabinet with damp cloth monthly
Condenser Coils: Vacuum annually before cooling season
Drainage: Check drain outlet for blockages monthly
Winter Storage: Remove unit or cover during off-season

WARNING! Always unplug unit before performing any maintenance.

Energy Saving Tips

Maximize efficiency and reduce energy costs.

Set temperature to 78°F when home, 85°F when away
Use timer to pre-cool room before arrival
Close curtains during hottest part of day
Ensure proper installation seals to prevent air leaks
Clean filters regularly for optimal airflow
Use fan mode when cooling isn't necessary

Care & Cleaning

Unplug unit before cleaning. Use mild detergent and soft cloth for exterior.

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

CAUTION! Do not use harsh chemicals, abrasives, or high-pressure water. Never operate without air filter.

Regulatory Information

UL Listed: Meets UL 484 standards for room air conditioners. Energy Star: Complies with EPA energy efficiency guidelines. Refrigerant: Uses R-410A, EPA approved. Copyright © 2024 LG Electronics; trademarks of LG Corp. For support, visit www.lg.com or contact 1-800-243-0000.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Unit not cooling	Dirty filter/thermostat setting	Clean filter; check temperature setting; ensure proper installation
Water leaking inside	Improper tilt/blocked drain	Ensure unit tilts slightly outward; clear drain passage
Loud noise/vibration	Loose parts/improper installation	Check mounting stability; tighten loose components
Remote not working	Batteries/obstructions	Replace batteries; ensure clear line of sight to unit
Unit cycles on/off frequently	Dirty coils/thermostat issue	Clean condenser coils; check room temperature sensor
Error codes displayed	System faults	Note error code; consult service manual; contact support

Reset: Unplug unit for 5 minutes, then restart.

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