Table of Contents
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OWNER'S MANUAL
AIR
CONDITIONER
Please read this manual carefully before operating
your set and retain it for future reference.
TYPE : WALL MOUNTED INVERTER
MODELS
Indoor Unit
D12NAK
/ A12NRK
NSB
A12NWK
/ D09NAK
NSB
A09NRK
/ A09NWK
NSB
P/NO : MFL67657206
Outdoor Unit
D12NAK
NSB
NSB
NSB
/ D09NAK
UL2
UL2
0197
0197
www.lg.com
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Table of Contents
Related Manuals for LG D09NAK UL2
Summarization of Contents
Energy Saving Tips
Customer Record Keeping
Section for stapling receipts and recording purchase/serial details for warranty purposes.
Important Safety Instructions
General Warnings and Cautions
Highlights potential hazards like injury, death, or damage from ignoring safety guidelines.
Installation Safety
Precautions for safe installation, including circuit breakers and qualified personnel.
Operation Safety
Guidelines for safe operation, covering power cords, wet hands, and flammable substances.
Additional Safety Precautions
Covers installation checks, handling, and specific operational risks like water exposure.
Before Use
Component Identification
Identifies and illustrates indoor and outdoor unit components for user familiarization.
Remote Control Operation
Details the wireless remote control buttons and their functions for operating the unit.
Remote Control Holder Installation
Instructions for inserting batteries into the remote and installing the holder.
Basic Functions
Cooling Operation
Steps to operate the air conditioner for cooling and setting the desired temperature.
Heating Operation
Steps to operate the air conditioner for heating and setting the desired temperature.
Dehumidifying Operation
Explanation of the dehumidifying mode and its automatic adjustments for optimal humidity.
Air Circulation Operation
Description of the air circulation mode for moving indoor air without changing room temperature.
Adjusting Fan Speed
How to select different fan speeds for optimal airflow and comfort.
Adjusting Air Flow Direction
Instructions for setting horizontal and vertical air flow direction for better air distribution.
Setting the Timer
Guide to setting the timer for automatic start and stop operations.
Sleep Mode Operation
How to activate sleep mode for automatic temperature adjustment during rest.
Canceling Timer Settings
Procedure to cancel or disable set timer functions on the remote control.
Advanced Functions
Quick Temperature Change (Jet Mode)
Fast cooling or heating by blowing strong air at a specific temperature for 30 minutes.
Indoor Unit Auto Cleaning
Function to dry indoor unit moisture and prevent mold using fan and ionizer.
Air Purification (Ionizer)
Utilizes ionizer to sterilize aerial bacteria and harmful substances for cleaner air.
Energy Saving Mode
Minimizes power consumption by adjusting temperature for optimal comfort and efficiency.
Low Heating (LH) Mode
Maintains minimum indoor temperature to prevent freezing in unoccupied rooms during winter.
Temperature Unit (°C/°F) Conversion
How to switch between Celsius and Fahrenheit temperature units on the display.
Display Screen Brightness
Adjusts the brightness of the indoor unit's display screen for user preference.
On-Unit Operation
Instructions to operate the unit using the indoor unit's power button when the remote is unavailable.
Automatic Restart Feature
Restores previous settings automatically after a power failure.
Disabling Auto Restart
Steps to turn off the auto-restart function and notes on test operation.
WLAN Connectivity
Information on connecting the air conditioner to a WLAN network via a mobile app.
Maintenance
Preparation for Long-Term Storage
Procedure to dry the unit before extended periods of non-use to prevent internal damage.
Maintenance Cleaning Schedule
Table outlining recommended cleaning intervals for filters, coils, and other parts.
Ionizer Cleaning
Instructions for cleaning the ionizer using a dry cotton bud to remove dust.
Air Filter Cleaning
Detailed steps for cleaning the air filter, including washing and drying methods.
3M Filter Cleaning
Instructions for cleaning the 3M filter using a vacuum cleaner, advising against washing.
Troubleshooting
Self-Diagnosis Feature
How the unit indicates errors via blinking lights and when to contact service.
Troubleshooting Before Service
Checklist of common problems and their corrective actions before contacting support.
Abnormal Operation
Addresses issues like burning smells, strange sounds, and power cord heat.
Unit Fails to Operate
Solutions for when the unit fails to operate, checking power and circuit breakers.
Poor Cooling Performance
Troubleshooting steps for insufficient cooling, checking filters, surroundings, and settings.
Poor Heating Performance
Solutions for lack of warm air, including defrosting mode and temperature settings.
Operation Stops Unexpectedly
Reasons for sudden shutdown, like timer settings or auto-restart function.
Unit Operates Post-Shutdown
Explains the Auto-Clean mode operation even when the unit is turned off.
Mist Discharge from Outlet
Explains mist formation in cooling operations and its dissipation.
Outdoor Unit Water Leakage
Advice on water leaks from the outdoor unit and contacting the installer.
Normal Operating Noises
Describes normal operating noises and their causes.
Indoor Unit Odor Causes
Solutions for bad smells, including cleaning filters and heat exchangers.
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