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OWNER'S MANUAL
AIR
CONDITIONER
Read this owner's manual thoroughly before operating the appliance
and keep it handy for reference at all times.
TYPE : WALL MOUNTED
www.lg.com
MFL69491601
Rev.04_051117

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Summarization of Contents

Safety Instructions
Important Safety Instructions
Basic precautions to reduce risk of explosion, fire, death, electric shock, or injury.
Operation Safety
Safety guidelines and precautions related to operating the air conditioner.
Maintenance Safety
Safety guidelines for cleaning and maintaining the air conditioner.
Technical Safety
Safety information for installation, repairs, and electrical grounding.
Cautionary Safety Instructions
Precautions to reduce the risk of minor injury, malfunction, or damage to the product.
Operation
Notes for Operation
Important notes and suggestions for operating the air conditioner, including energy saving tips.
Parts and Functions
Identification and description of indoor and outdoor unit components and their functions.
Wireless Remote Control Basics
Instructions for inserting batteries and installing the remote control holder.
Operating Without Remote Control
How to operate the air conditioner using the ON/OFF button on the indoor unit.
Temperature Unit Conversion
How to switch between Celsius and Fahrenheit temperature units.
Remote Control Operations
Detailed explanation of buttons and their functions on the wireless remote control.
Remote Control Functions
Explanation of various functions accessible via the remote control buttons.
Advanced Remote Functions
Details on special functions and their operation via the remote control.
Auto Restart Function
How to disable or re-enable the auto restart feature after a power failure.
Mode Selection
Instructions for selecting Cooling, Heating, Fan, and Dehumidification modes.
Mode Function Details
Detailed operations for Heating, Fan, Dehumidification, and Auto Changeover modes.
Auto Operation Mode
How the unit automatically sets fan speed and temperature based on room conditions.
Jet Mode Function
How to quickly cool or warm the indoor air using the Jet Mode.
Fan Speed Adjustment
How to adjust the fan speed to different levels.
Air Flow Direction Adjustment
How to adjust the vertical and horizontal air flow direction.
Setting On/Off Timer
Instructions for setting the air conditioner to turn on or off automatically at a desired time.
Sleep Function
How the air conditioner automatically turns off when you go to sleep.
Simple Timer Function
How the air conditioner automatically turns off after a set period.
Energy Display Function
How to display current and cumulative energy usage on the indoor unit.
Light Off Function
How to set the brightness of the indoor unit display screen.
Comfort Air Function
How to deflect air away from occupants for comfortable air flow.
Energy Saving Function
How to minimize power consumption and optimize temperature for comfort.
Energy Control Function
How to adjust power input in steps for energy saving.
Special Functions Overview
Explanation of various special functions available on the remote control.
Canceling Special Functions
How to cancel selected special functions.
Air Purification Function
How the air conditioner supplies clean and fresh air using ion particles and filters.
Ion Care Function
How the unit moisturizes skin by generating ion clusters.
Jet Dry Function
How to maximize the performance of dehumidification.
Low Heating Function
How to maintain minimum room temperature and prevent freezing in vacant rooms.
Mosquito Away Function
How the unit fends off mosquitos using high-frequency waves.
Auto Clean Function
How the unit removes moisture generated inside the indoor unit.
Comfort Sleep Function
How the air conditioner automatically creates a comfortable sleep environment.
Smart Functions
Smart ThinQ Application
Instructions for installing and registering the LG Smart ThinQ application.
Smart Diagnosis via Smartphone
How to use the Smart Diagnosis function with a smartphone for troubleshooting.
Maintenance
General Maintenance Precautions
Important warnings and procedures before cleaning or performing maintenance.
Cleaning Schedule and Methods
Details on cleaning frequency and methods for air filters and unit components.
Cleaning the Air Filter
Step-by-step guide for cleaning the air filters for Type 1 and Type 2 indoor units.
Cleaning 3M and Triple Filters
Instructions for cleaning optional 3M and Triple filters for Type 1 and Type 2 units.
Troubleshooting
Self-Diagnosis Function
How the product's self-diagnosis function indicates errors via blinking lamps.
Before Calling for Service
Checklist of common problems and corrective actions before contacting a service center.
Air Conditioner Not Working
Troubleshooting steps for when the air conditioner does not operate correctly.
No Cool Air Emission
Troubleshooting steps when the air conditioner does not emit cool air.
Fan Speed Adjustment Issues
Troubleshooting steps when the fan speed cannot be adjusted.
Temperature Adjustment Issues
Troubleshooting steps when the temperature cannot be adjusted.
Operation Stoppage Issues
Troubleshooting steps for when the air conditioner stops during operation or continues after power off.
Mist Discharge and Water Leaks
Troubleshooting steps for mist from the outlet and water leaks from the outdoor unit.
Noise and Vibration Issues
Information on normal operating sounds and vibration.
Odor Issues
Troubleshooting steps for odors emitted from the indoor unit.
No Warm Air Emission
Troubleshooting steps when the air conditioner does not emit warm air during heating mode.

Table of Contents