CM24F - Air Conditioning LG - Free user manual and instructions

USER MANUAL CM24F LG

www.lg.com Please read this manual carefully before operating your set and retain it for future reference. Installation work must be performed in accordance with the national wiring standards by authorized personnel only. This equipment shall be provided with a supply conductor complying with the national regulation. Original instruction (R410A/R32) Copyright © 2022 LG Electronics Inc. All Rights Reserved.

AIR CONDITIONER MFL71666509Rev.00_011322ENGLISHITALIANOESPAÑOLFRANÇAISDEUTSCHΕΛΛΗΝΙΚΆČEŠTINANEDERLANDSPOLSKILIMBA ROMÂNĂLG Electronics Inc. Single Point of Contact (EU/UK) & EU Importer:LG Electronics European Shared Service Center B.V.Krijgsman 1, 1186 DM Amstelveen, The Netherlands [Representative]

[Manufacturer] LG Electronics Tianjin Appliances Co.,Ltd.No.09, JinWei Road,Beichen District,Tianjin,300402.P.R.ChinaTable Of Contents 2 Indoor Unit 3 SAFETY INSTRUCTIONS

9 PRIOR TO OPERATION

9 Preparing for Operation 9 Usage 9 Cleaning and Maintenance 9 Service 10 OPERATING INSTRUCTIONS 10 How to insert the Batteries 10 Wireless Remote Controller Maintenance 10 Operating Method 11 Using Wireless Remote Control 12 Using the Mode Function 14 Using the Auto Operation Function 15 Using the Temperature Setting Function 16 Using the Fan Speed Function 16 Using the Air Flow Direction Function 18 Using the Optional Function 19 Using Special Functions 21 Timer Functions 22 Mode Lock setting 22 Selecting air outlet direction (for console) 25 Forced Operation 25 Auto Restart Function

26 MAINTENANCE AND SERVICE

26 Ceiling Cassette 1Way (Grille + Panel) 27 Ceiling Cassette 1 Way (With Air Purifier) 31 Ceiling Cassette 4Way 34 Ceiling Cassette Round 35 Ceiling Concealed Duct 36 Art Cool Gallery Series 38 Wall Mounted 39 Convertible 40 Console 41 When the air conditioner is not going to be used for a long time 41 Operation Tips 42 Before you call for service... TABLE OF CONTENTSOwner’s Manual 3 Safety InstructionsENGLISH Safety Instructions WARNING

• Do not use a defective or underrated circuit breaker. Use this appliance on a dedicated circuit. - There is risk of fire or electric shock.

• For electrical work, contact the dealer, seller, a qualified electrician, or an Authorized Service Center. The following safety guidelines are intended to prevent unforeseen risks or damage from unsafe or incorrect operation of the appliance. The guidelines are separated into ‘WARNING’ and ‘CAUTION’ as described below. WARNING This indicates that the failure to follow the instructions can cause serious injury or death. CAUTION This indicates that the failure to follow the instructions can cause the minor injury or damage to the product.

This symbol is displayed to indicate matters and operations that can cause risk. Read the part with this symbol carefully and follow the instructions in order to avoid risk.

Read the precautions in this manualcarefully before operating the unit.This appliance is filled withflammable refrigerant (for R32)This symbol indicates that theOperation Manual should be readcarefully.This symbol indicates that a servicepersonnel should be handling thisequipment with reference to theInstallation Manual. The following symbols are displayed on indoor and outdoor units.4 Indoor Unit Safety Instructions - Do not disassemble or repair the product. There is risk of fire or electric shock.

• Always ground the product. - There is risk of fire or electric shock.

• Install the panel and the cover of control box securely. - There is risk of fire or electric shock.

• Always install a dedicated circuit and breaker. - Improper wiring or installation may cause fire or electric shock

• Use the correctly rated breaker or fuse. - There is risk of fire or electric shock.

• Do not modify or extend the power cable. - There is risk of fire or electric shock.

• Do not install, remove, or re-install the unit by yourself (customer). - There is risk of fire, electric shock, explosion, or injury.

• Be cautious when unpacking and installing the product. - Sharp edges could cause injury. Be especially careful of the case edges and the fins on the condenser and evaporator.

• For installation, always contact the dealer or an Authorized Service Center. - There is risk of fire, electric shock, explosion, or injury.

• Do not install the product on a defective installation stand. - It may cause injury, accident, or damage to the product.

• Do not turn on the breaker or power under condition that front panel, cabinet, top cover, control box cover are removed or opened. - Otherwise, it may cause fire, electric shock, explosion or death.

• Be sure the installation area does not deteriorate with age. - If the base collapses, the air conditioner could fall with it, causing property damage, product failure, and personal injury.

• Use a vacuum pump or Inert (nitrogen) gas when doing leakage test or air purge. Do not compress air or Oxygen and Do not use Flammable gases. Otherwise, it may cause fire or explosion. - There is the risk of death, injury, fire or explosion.

• The appliance shall be stored in a well-ventilated area where the room size corresponds to the room area as specified for operation. (for R32)Owner’s Manual 5 Safety Instructions ENGLISH

• Ducts connected to an appliance shall not contain an ignition source. (for R32)

• The appliance shall be stored in a room without continuously operating ignition sources (for example: open flames, an operating gas appliance or an operating electric heater.)

• Keep any required ventilation openings clear of obstruction. Operation

• Take care to ensure that power cable could not be pulled out or damaged during operation. - There is risk of fire or electric shock.

• Do not place anything on the power cable. - There is risk of fire or electric shock.

• Do not touch(operate) the product with wet hands. - There is risk of fire or electrical shock.

• Do not place a heater or other appliances near the power cable. - There is risk of fire and electric shock.

• Do not allow water to run into electric parts. - It may cause There is risk of fire, failure of the product, or electric shock.

• Do not store or use flammable gas or combustibles near the product. - There is risk of fire or failure of product.

• Do not use the product in a tightly closed space for a long time. - Oxygen deficiency could occur.

• When flammable gas leaks, turn off the gas and open a window for ventilation before turn the product on. - Do not use the telephone or turn switches on or off. There is risk of explosion or fire.

• If strange sounds, smell or smoke comes from product. Turn the breaker off or disconnect the power supply cable. - There is risk of electric shock or fire.

• Stop operation and close the window in storm or hurricane. If possible, remove the product from the window before the hurricane arrives. - There is risk of property damage, failure of product, or electric shock.6 Indoor Unit Safety Instructions

• Do not open the inlet grill of the product during operation. (Do not touch the electrostatic filter, if the unit is so equipped.) - There is risk of physical injury, electric shock, or product failure.

• When the product is soaked (flooded or submerged), contact an Authorized Service Center. - There is risk of fire or electric shock.

• Be cautious that water could not enter the product. - There is risk of fire, electric shock, or product damage.

• Ventilate the product from time to time when operating it together with a stove, etc. - There is risk of fire or electric shock.

• Turn the main power off when cleaning or maintaining the product. - There is risk of electric shock.

• Take care to ensure that nobody could step on or fall onto the outdoor unit. - This could result in personal injury and product damage.

• Do not let the air conditioner run for a long time when the humidity is very high and a door or a window is left open. - Moisture may condense and wet or damage furniture.

• Do not turn on the breaker or power under condition that front panel, cabinet, top cover, control box cover are removed or opened. - Otherwise, it may cause fire, electric shock, explosion or death. Installation

• Always check for gas (refrigerant) leakage after installation or repair of product. - Low refrigerant levels may cause failure of product.

• Install the drain hose to ensure that water is drained away properly. - A bad connection may cause water leakage.

• Keep level even when installing the product. - To avoid vibration or water leakage.

• Use two or more people to lift and transport the product. - Avoid personal injury. CAUTION !Owner’s Manual 7 Safety Instructions ENGLISH

• Any person who is involved with working on or breaking into a refrigerant circuit should hold a current valid certificate from an industry accredited assessment authority, which authorises their competence to handle refrigerants safely in accordance with an industry recognised assessment specification. (for R32)

• The appliance shall be stored so as to prevent mechanical damage from occurring.

• Do not install the product where the noise or hot air from the outdoor unit could damage the neighborhoods. - It may cause a problem for your neighbors.

• If anyone other than a licensed Professional installs, repairs, or alters LG Electronics Air Conditioning Products, the warranty is voided. - All costs associated with repair are then the full responsibility of the owner.

• Do not install the unit in potentially explosive atmospheres. Operation

• Do not expose the skin directly to cool air for long periods of time. (Don't sit in the draft.) - This could harm to your health.

• Do not use the product for special purposes, such as preserving foods, works of art, etc. It is a consumer air conditioner, not a precision refrigeration system. - There is risk of damage or loss of property.

• Do not block the inlet or outlet of air flow. - It may cause product failure.

• Use a soft cloth to clean. Do not use harsh detergents, solvents, etc. - There is risk of fire, electric shock, or damage to the plastic parts of the product.

• Do not touch the metal parts of the product when removing the air filter. They are very sharp! - There is risk of personal injury.

• Do not step on or put anything on the product. (outdoor units) - There is risk of personal injury and failure of product.8 Indoor Unit Safety Instructions

• Always insert the filter securely. Clean the filter every two weeks or more often if necessary. - A dirty filter reduces the efficiency of the air conditioner and could cause product malfunction or damage.

• Do not insert hands or other objects through the air inlet or outlet while the product is operated. - There are sharp and moving parts that could cause personal injury.

• Do not drink the water drained from the product. - It is not sanitary and could cause serious health issues.

• Use a firm stool or ladder when cleaning or maintaining the product. - Be careful and avoid personal injury.

• Servicing shall only be performed as recommended by the equipment manufacturer. Maintenance and repair requiring the assistance of other skilled personnel shall be carried out under the supervision of the person competent in the use of flammable refrigerants. (for R32)

• This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety. - Children should be supervised to ensure that they do not play with the appliance.

• This appliance can be used by children aged from 8 years and above and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved. Children shall not play with the appliance. Cleaning and user maintenance shall not be made by children without supervision.

• If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly qualified persons in order to avoid a hazard.

• Do not touch refrigerant pipe and water pipe or any internal parts while the unit is operating or immediately after operation. - It can cause a burn or frostbite.Owner’s Manual 9 Prior to Operation ENGLISH For repair and maintenance, contact your authorized service dealer.

1. Do not touch the metal parts of the unit when removing the filter. Injuries can occur when handling

2. Do not use water to clean inside the air conditioner. Exposure to water can destroy the insulation,

leading to possible electric shock.

3. When cleaning the unit, first make sure that the power and breaker are turned off. The fan rotates

at a very high speed during operation. There is a possibility of injury if the unit’s power is accidentally triggered on while cleaning inner parts of the unit.

1. Being exposed to direct airflow for an extended period of time could be hazardous to your health.

Do not expose occupants, pets, or plants to direct airflow for extended periods of time.

2. Due to the possibility of oxygen deficiency, ventilate the room when used together with stoves or

other heating devices.

3. Do not use this air conditioner for non-specified special purposes (e.g. preserving precision

devices, food, pets, plants, and art objects). Such usage could damage the items.

1. Contact an installation specialist for installation.

2. Use a dedicated circuit.

Service Cleaning and Maintenance Usage Preparing for Operation Prior to Operation10 Indoor Unit Operating Instructions

1. Choose a suitable place where its safe & easy

2. Fix the holder to wall etc with the supplied

1. Remote controller should never be exposed to

2. Signal transmitter & receiver should always be

clean for proper communication. Use a soft cloth to clean them.

3. In case some other appliances also get

operated with remote control, change their position or consult your serviceman. NOTE

1. The signal receiver is inside the unit.

Aim the remote controller towards the unit to operate it. There should not be any blockage in between.

1. Remove the battery cover by pulling it according to the arrow

2. Insert new batteries making sure that the (+) and (-) of battery are

installed correctly.

3. Reattach the cover by sliding it back into position.

1. Always use/replace both batteries of same type.

2. If the system is not to be used for a long time, remove the

batteries to save their working life.

3. If the display screen of remote controller starts, fading replace

both of the batteries. NOTE Operating Method Wireless Remote Controller Maintenance How to insert the Batteries Operating InstructionsOwner’s Manual 11 Operating Instructions ENGLISH Button Display Screen Description - Used to turn on/off the unit. AIR PURIFY Used to start or stop the air purification function. PLASMA Used to start or stop the plasma-purification function. VANE ANGLE Used to set each vane angle. AIR FLOW Used to set airflow. Used to select the room temperature. MODE - Used to select the operation mode. JET MODE To change room temperature quickly. JET COOL FAN SPEED - To adjust the fan speed. FUNC. - Used to set or clear additional function. To adjust the air flow direction vertically or horizontally. ROOM TEMP Used to check the room temperature. SLEEP Used to set the time for the sleep function.

- Used to set the start time. OFF - Used to set the stop time.

Used to set the timer. Used to adjust the brightness. Used to check the room temperature. (If it is not time adjust mode) SET/CLEAR

Used to set/clear the timer. Used to set the current time. (hold button for 3 seconds) RESET - To initialize the remote control settings. Using Wireless Remote Control

• Depending on the product type, some functions may not be available and displayed.

• Some products don’t receive the wired signals.

• When using the simultaneous operation system, the system will operate approximately 1 - 2 minutes after pressing the remote controller button.

• The displayed temperature can be different from the actual room temperature if the remote controller is installed somewhere exposed to direct sunlight or is nearby a heat source.

• Depending on the product, wireless and wired remote control are optional or basic.

• Heating Mode is not available for Cooling only Models.

• Buttons may be changed according to the type of model. NOTE You can operate the air conditioner more conveniently with the remote control.12 Indoor Unit Operating Instructions Cooling Mode This cools the room with a comfortable and clean wind. Turn the appliance on. Press MODE button repeatedly to select theCooling Mode.• is displayed on the display screen. Press or button to set the desiredtemperature. Press FAN SPEED button repeatedly to adjust thefan speed. • Press the ROOM TEMP button to check theRoom temperature.• When setting the desired temperature higher thanthe current room temperature, the unit willproduce only ventilation wind. Power Cooling Mode This cools the room with a comfortable and clean wind. Turn the appliance on. Press MODE button repeatedly to select theCooling Mode.

Press JET MODE or JET COOL button.

• This rapidly lowers the room temperature.• Partial appliance has no Power Cooling function.• The unit will operate at a high fan speed incooling mode.• The feature may be changed according to thetype of model. Dehumidification Mode It removes humidity while slightly cooling the air. Turn the appliance on. Press MODE button repeatedly to select theDehumidification Mode.• is displayed on the display screen. Press FAN SPEED button repeatedly to adjust thefan speed. • The temperature setting can not be adjustedwhen this mode is operating.• During rainy seasons or in high-humidity climates,it is possible to simultaneously operate thedehumidifier and cooling mode to removehumidity effectively.• The menu item of wind powerfulness might not bepartially selected according to the product. NOTE NOTE NOTE Using the Mode FunctionOwner’s Manual 13 Operating Instructions ENGLISH Heating Mode This supplies warm wind to the inside of the building. Turn the appliance on. Press MODE button repeatedly to select theHeating Mode.• is displayed on the display screen. Press or button to set the desiredtemperature. Press FAN SPEED button repeatedly to adjust thefan speed. • Press the ROOM TEMP button to check theRoom temperature.• When setting the desired temperature lower thanthe room temperature, the unit will produce onlyventilation wind.• Heating Mode is not available for Cooling onlymodels.• To check the indoor temperature, press the roomtemperature button. Power Heating Mode

Turn the appliance on. Press MODE button repeatedly to select theHeating Mode. Press JET MODE button.• is displayed on the display screen.• Heating Mode is not available for Cooling onlymodels.• Some functions may not be supported, dependingon the model. Fan Mode

Turn the appliance on. Press MODE button repeatedly to select the FanMode.• is displayed on the display screen. Press FAN SPEED button repeatedly to adjust thefan speed. • Natural wind based on chaos logic- For a fresher feeling than other fan speeds,press the Indoor Fan Speed Selector and set tochaos mode. In this mode, the wind blows like anatural breeze by automatically changing fanspeed based on the chaos logic.• During Fan Mode- The outdoor compressor doesn’t work. Have afunction to circulate the indoor as it sends outthe air that doesn’t have much temperaturedifference with indoor. NOTE NOTE NOTE14 Indoor Unit Operating Instructions Auto Operation Mode This mode automatically sets the fan speed andtemperature depending on the room temperature. Cooling Only Model In this mode, you cannot adjust the fan speed, but youcan set the air deflector to rotate automatically. Turn the appliance on. Press MODE button repeatedly to select the AutoOperation Mode.• is displayed on the display screen. Press or button to set the desiredtemperature.• Please select the code depend on your feeling. Cooling & Heating Model This mode changes the mode automatically tomaintain the set temperature at ±2 °C. Turn the appliance on. Press MODE button repeatedly to select the AutoOperation Mode.• is displayed on the display screen. Press or button to set the desiredtemperature.• Setting temp range: 18 °C ~ 30 °C Press FAN SPEED button repeatedly to adjust thefan speed.Code Description2 Cold1 Slightly cool0 Neutral-1 Slightly warm-2 Warm Using the Auto Operation FunctionOwner’s Manual 15 Operating Instructions ENGLISH Auto Changeover Mode - Setting the Mode Change Temperature Cooling & Heating Model The Mode Change Temperature is the difference oftemperature when from cooling mode to heating modeor from heating mode to cooling mode. In Auto Operation Mode, Press the FUNC. buttonto select Setting the Mode Change Temperature. Press or button to set desired ModeChange Temperautre. • Default value is 2 °C• Setting temp range: 1 °C ~ 7 °CWhen setting temperature is 25 °C and roomtemperature is 20 °C, then operating mode isheating. If you set the mode change temperature to2 °C, when the room temperature up to 27 °C(25°C + 2 °C), the unit start cooling operation. NOTE Temperature setting Use this function to adjust the desired temperature.: Increase 1 ˚C or 1 ˚F each time pressed.: Decrease 1 ˚C or 1 ˚F each time pressed.• 5 °C is proper for the difference between room andoutside temperature.• Cooling operation - The cooling mode doesn’t work if the desiredtemperature is higher than room temperature.Please lower the desired temperature. - Setting temp range: 18 °C ~ 30 °C • Heating operation - The heating mode doesn’t work if the desiredtemperature is lower than room temperature. - Please increase the desired temperature. - Setting temp range: 16 °C ~ 30 °C- When pressing the FAN SPEED button of theremote controller for approx. 3 seconds, theroom temperaturewill be displayed for about 5seconds before returning to the previous displaypanel. • Some functions may not be supported, dependingon the model. Switching Between Celsius/Fahrenheit Press and hold the ROOM TEMP or FUNC. button long for 5 seconds to change from Celsius toFahrenheit or from Fahrenheit to Celsius.• Some functions may not be supported, dependingon the model. NOTE NOTE Using the Temperature Setting Function16 Indoor Unit Operating Instructions Up/Down Airflow Direction Control (Optional) The up/down airflow (Vertical Airflow) can be adjustedby using the remote controller. Turn the appliance on. Press button.• The louvers will swing up and down. Press button again to set the vertical louverat the desired airflow direction.• If you press button, the horizontal airflowdirection is changed automatically based on theAuto Swing algorithm to distribute the air in theroom evenly and at the same time to make thehuman body feel more comfortable, as if enjoyinga natural breeze.• Always use the remote controller to adjust the up/down airflow direction. Manually moving thevertical airflow direction louver by hand, coulddamage the air conditioner.• When the unit is shut off, the up/down airflowdirection louver will close the air outlet vent of thesystem.• Some functions may not be supported, dependingon the model. Left/Right Airflow Direction Control (Optional) The left/right (horizontal) airflow can be adjusted byusing the remote control. Turn the appliance on. Press button.• The louvers will swing left and right. Press button again to set the horizontallouver at the desired airflow direction.• Some functions may not be supported, dependingon the model. NOTE NOTE Using the Air Flow Direction Function Adjusting the Fan Speed

Turn the appliance on. Press FAN SPEED button repeatedly to adjust thefan speed.• The menu item might not be partially selectedaccording to product function.• The feature may be changed according to thetype of model. NOTE Using the Fan Speed FunctionOwner’s Manual 17 Operating Instructions ENGLISH Indirect Wind (Optional) It adjusts the wind direction to indirect wind. Turn the appliance on. Press AIR FLOW button repeatedly until icondisplayed. Press SET/CLEAR button to set or cancel thisfunction.Some functions may not be supported, dependingon the model. Direct Wind (Optional) It adjusts the wind direction to direct wind. Turn the appliance on. Press AIR FLOW button repeatedly until icondisplayed. Press SET/CLEAR button to set or cancel thisfunction.Some functions may not be supported, dependingon the model. Smart Mode (Optional) It is the function to set the Smart Mode operation of theproduct. Turn the appliance on. Press AIR FLOW button repeatedly until icondisplayed. Press SET/CLEAR button to set or cancel thisfunction.• Smart Mode function can only be selected in thecooling and heating modes.• Smart Mode / Energy Saving Cooling / RefreshMode functions cannot be set at the same time.• Some functions may not be supported, dependingon the model. Refresh Mode (Optional) It is the function to set the Refresh Mode operation ofthe product. Turn the appliance on. Press AIR FLOW button repeatedly until icondisplayed. Press SET/CLEAR button to set or cancel thisfunction. When set, it is displayed with the animated effectin the order of .• Refresh Mode function can only be selected in thecooling and heating modes.• Smart Mode / Energy Saving Cooling / RefreshMode functions cannot be set at the same time.• Some functions may not be supported, dependingon the model. NOTE

NOTE NOTE NOTE18 Indoor Unit Operating Instructions Individual vane angle control (Optional) This is the function that controls the vane anglesindividually in the ceiling cassette products. Press VANE ANGLE button.• The individual vane angle control symbol willblink. Set each vane angle by pressing VANE ANGLEbutton. Press SET/CLEAR button to set or cancel thisfunction.• There may be differences between theup/down/left/ right buttons on the wireless remotecontroller and the wind discharge port directions.• Set the desired angle while checking themovement and angle of the product’s vanes.• Some functions may not be supported, dependingon the model. Air Purification / Plasma Purification (Optional)

• Press AIR PURIFY or PLASMA button. - is displayed on the display screen.• If you wish to stop, press AIR PURIFY orPLASMA button again.• When AIR PURIFY button is pressed while theunit is stopped, Air Purification will startindependently.• Plasma filter is a technology developed by LG toget rid of microscopic contaminants in the intakeair by generating a plasma of highly chargedelectrons. This plasma kills and destroys thecontaminants completely to provide clean andhygienic air.• This function can be used in any operation modeand any fan speed can be used while the plasmafilter is functioning.• Some functions may not be supported, dependingon the model. Smart Indicator (Air Quality) Always On Setting (Optional)
• Press the AIR PURIFY button for 3 seconds, Airquality level will always be displayed on SmartIndicator of the product.• Some functions may not be supported, dependingon the model. LCD Luminosity Control (Optional) It is comfortable when you feel that the display of theunit too bright.• Press the button. NOTE NOTE NOTE Using the Optional FunctionOwner’s Manual 19 Operating Instructions ENGLISH Setting Special Functions

Press FUNC. button repeatedly to select thedesired function. Press SET/CLEAR button to finish.• Some functions may not be supported, dependingon the model.• Some functions may operate differently from theremote control display. Canceling Special Functions

Press FUNC. button repeatedly to select thedesired function. Press SET/CLEAR button to cancel the function. Auto Clean (Optional) In the Cooling and Dehumidification Mode, moisture isgenerated inside the indoor unit. This function removessuch moisture.• is displayed on the display screen.• If you turn off the unit, the fan continues to run for30 minutes and cleans the inside of the indoorunit.• Some functions cannot be used while the AutoClean function is in operation. Smart Clean (Optional) The Smart Clean function can be used by setting tomanual or automatic.• is displayed on the display screen. Auto Smart Clean Operation If the accumulated operation time of the productexceeds 30 hours, the Smart Clean automaticallystarts when the unit is turned off. Manual Smart Clean Operation When the unit stop, press the FUNC. button to selectSmart Clean.• The brush clean a dust from the filter by movingfrom left to right or from right to left on the filter.The sucked dust is collected into the dust box.• Some functions may not be supported, dependingon the model. NOTE NOTE NOTE Using Special Functions20 Indoor Unit Operating Instructions Energy Saving Cooling (Optional) Energy Saving Cooling is the function to adjust the desired temperature during cooling operation to enhance the comfort of the user and improve the energy saving performance.

• is displayed on the display screen.

• It can be selected only during the cooling operation.

• When pressing Energy Saving Cooling while cooling at 22 °C or lower, it is automatically set to 22 °C.

• During the Energy Saving Cooling operation, the temperature on the remote control may be displayed differently from the air conditioner display.

• Smart Mode / Energy Saving Cooling / Refresh Mode functions cannot be set at the same time.

• Some functions may not be supported, depending on the model. Electric Heater (Optional) It can only be set during heating operation.

• is displayed on the display screen.

• The indoor unit displays during the heating mode, the Auxiliary heater is automatically turned on, but it is not displayed on the wireless remote controller separately.

• It operates in Floor heating mode in Console products.

• Heating Mode is not available for Cooling only models.

• Some functions may not be supported, depending on the model. Comfort Cooling (Optional) This function is automatically control the cooling strength to maintain the pleasant feeling without turning off the product after the indoor temperature reached the desired temperature.

• is displayed on the display screen.

• It can be selected only during the cooling operation.

• Some functions may not be supported, depending on the model. NOTE NOTE NOTEOwner’s Manual 21 Operating Instructions ENGLISH Setting the Current Time

Press SET/CLEAR button for 3 seconds. Press or button until the desired timeis set.• If you press down and hold the button for a longtime, the time will change more quickly in 10minute increments.Check the indicator for A.M. and P.M. Sleep Timer Setting

Turn the appliance on. Press SLEEP button to turn the timer on or off. Press or button until the desired timeis set.• 7 hours is the maximum setting. Press SET/CLEAR button. Setting the On Timer

Press ON button to turn the timer on or off. Press or button until the desired timeis set. Press SET/CLEAR button. Setting the Off Timer

Press OFF button to turn the timer on or off. Press or button until the desired timeis set. Press SET/CLEAR button. Canceling the Timer Setting You can cancel all timer settings.• Press SET/CLEAR button.• If you wish to cancel a specific timer setting, pressthe each timer button to turn on or off the SleepTimer, On Timer, or Off Timer as you want. Thenpress the SET/CLEAR button while aiming theremote controller at the signal receptor.• The timer lamp on the air conditioner and thedisplay will go off. NOTE NOTE Timer Functions22 Indoor Unit Operating Instructions Some functions may not be supported, depending on the model. NOTE You can select the air outlet. Press ON/OFF button to start the unit. Press the AIR OUTLET button.

• If is selected, only upper air outlet will be opened and blow air.

• If is selected, only lower air outlet will be opened and blow air.

• If is selected, upper/lower air outlets will be opened and blow air. Selecting air outlet direction (for console)

• Use other controller but wireless one, you can change operation mode.

• Some functions may not be supported, depending on the model. NOTE You can select operation mode for “cooling only” or “heating only”.

o q for 5 seconds or more, operation mode changed to “cooling only”.

o q for 5 seconds or more, operation mode changed from “cooling only” to “heating only”.

o q for 5 seconds or more, “heating only” mode released. - In “cooling only” or “heating only” mode, mode change cannot be choose. Mode Lock settingOwner’s Manual 23 Operating Instructions ENGLISH Checking the air quality level during air purification operation (Optional) Press button for 3 seconds, Air quality level will always be displayed on Smart Indicator of the product. Global Display Color Air Quality Level Concentration of dust (μg/m

PM10 PM2.5/1.0 Green Good 54

PM10 PM2.5/1.0 Green Good 50↓ 35↓ Yellow Moderate 51150 3675 Orange Unhealthy 151250 76115 Red Poor 251350 116150 Pink Very poor 351420 151250 Violet Severe 421↑ 251↑ China/India - The dust concentration is displayed from 8 to 999 by the unit of 1. - The dust concentration referred to the data sheet of the sensor manufacturer. - The dust concentration criteria for the PM1.0 dust were set based on the same criteria as the PM2.5 dust. (Company standard) - The dust concentration and level displayed on the product may differ from other measuring instruments or other products. - The displayed dust concentration values can differ from each other depending on the differences in dust measuring methods and also from the actual dust density. - The dust concentration evaluation is carried out with our company's standard test dust. - If you use a product generating steam or fine particles (humidifier, cooking appliances, sprays, etc.), the dust concentration may change. - The dust concentration may vary depending on the installation environment and surrounding environment. - It is also affected by sofas, beds, carpets, vacuum cleaners, humidity, smoke, bugs, pets, etc. - It is affected by construction sites, roadsides and factories. - Dust concentrations can be measured to be higher in an environment where external air is introduced, such as near the entrance, windows and ventilation openings. - This is an additional function of the product and may not work in some products. - The feature may be changed according to the type of model. - Some functions may not be supported, depending on the model. NOTE24 Indoor Unit Operating Instructions How to set Air quality level color

3. Press the button toward the indoor unit 1 time.

Each countries have different standards for indicating Overall air quality. Please refer to table below.

4. Reset the remote controller to use the general

operation mode. Value Step Overall Air Quality. Type1 (1beep) 4step (For Korea) Good/Moderate/ Unhealthy/Poor Type2 (2beep) 4step (For Global) Good/Moderate/ Unhealthy/Poor Type3 (3beep) 6step (For China) Good/Moderate/ Unhealthy/Poor/ Very Poor/ Severe Function code Setting code TEMPOwner’s Manual 25 Operating Instructions ENGLISH ON/OFF buttonON/OFF buttonON/OFF buttonON/OFF button Auto Restart Function Operation procedures when the remote control can't be used. Press the tact switch (ON/OFF button) for 2 seconds. If you want to stop operation, press again the tact switch. In case the power comes on again after power failure on the forced operation mode, the operating conditions are automatically set as follows: During forced operation, the initial mode continues. In case the power comes on again after a power failure, auto restarting operation is the function to operate procedures automatically to the previous operating conditions.

• The feature may be changed according to the type of model. <Ceiling Cassette - 1Way> <Ceiling Cassette - 2Way> <Art Cool Gallery Series> <Console> Forced Operation26 Indoor Unit Maintenance and Service Plasma filter(Optional) Air filter Wired Remote Controller(Accessory)Air inletAir outlet

Turn the system off before cleaning. Clean the unit with a soft dry cloth. Do not use bleach or abrasives. Power supply must be disconnected before cleaning the indoor unit. NOTE

1. Remove air filters.

CAUTION When the air filter is to be removed, do not touch the metal parts of the indoor unit. It may cause an injury.

2. Remove Plasma filter (Optional).

n Unscrew 2 screws from Plasma filter (Optional).

3. Clean dirt from the air filter using a vacuum

cleaner or washing with water. n If dirt is conspicuous, wash with a neutral detergent in lukewarm water. n If hot water (40 °C or more) is used, it may be deformed.

4. After washing with water, dry well in the

Do not expose the air filter to direct sunlight or heat from a fire when drying it.

5. Install Plasma filter (Optional) and air filter.

Air Filter The air filters behind the front grille should be checked and cleaned once in every 2 weeks or more often if necessary. CAUTION Before performing any maintenance, turn off the main power to the system.

Never use any of the followings:

• Water hotter than 40 °C. Could cause deformation and/or discoloration.

• Volatile substances. Could damage the surfaces of the air conditioner. Ceiling Cassette - 1Way (Grille + Panel)Maintenance and ServiceOwner’s Manual 27 Maintenance and Service ENGLISH Cleaning the filter CAUTION Before performing any maintenance, turn off the mainpower to the system.1. Pull on the handles on both ends of the markedrear side of the front panel, then open the frontgrille and press down on the two hooks and removethe Pre-filter.2. Clean with a vacuum cleaner or a soft brush.• If the filter is very dirty, wash using water and aneutral detergent.3. Allow the filter to dry in the shade until completely dry. 4. Install the filter in the reverse order from which itwas removed, then close the front grille.• When installing the filter, insert the hook in thesquare hole.① Marker② Pre-filter③ Filter case④ Front intake grille⑤ Handle⑥ Hook⑦ Square hole WARNING For safety, turn off the main power switch. CAUTION
• Make sure that the filter is properly installed in thefilter case. (When you insert the filter into the caseand push the handle, you will hear a clicking soundwhen it is secured in place.)• Be careful not to drop the front grille when removingthe filter.• Do not use volatile liquids or water that is 40 °C orhotter.• Using the filter when it is not completely dry couldcause the product to malfunction.• Drying the filter near a fire or in direct sunlight maycause damage to the filter.• When cleaning the filter, be careful not to damagethe filter's mesh.• If dust gets in the filter, there could be a drop incooling capacity.• Clean around once every two weeks.• If you have the filter cleaned at an LG ElectronicsService Center, a separate fee may be charged.(paid service)• The number and type of filters provided may differdepending on the model.• Product shape and components may differdepending on the model.• The feature may be changed according to the type ofmodel.• Some functions may not be supported, depending onthe model.

Ceiling Cassette - 1 Way (With Air Purifier)28 Indoor Unit Maintenance and Service Cleaning the deodorization filter/PM1.0 filter (Optional)

1. Refer to 'How to Remove the Filter' when

removing the filter.

2. Grab the handle on the filter case holder and pull

in the direction of the arrow to remove the PM1.0 filter.

• Do not remove the filter case holder and the intake grille.

3. As shown in the figure, pull on the handle and

remove the deodorization filter.

4. Wash the filter after checking the washing

method in 'Filter Information'.

5. After washing, reinstall the deodorization filter

and the PM1.0 filter to their original positions, respectively.

• When installing the PM1.0 filter, insert the hook in the square hole.

deodorization filter

Square hole WARNING For safety, turn off the main power switch.

• The feature may be changed according to the type of model.

• Some functions may not be supported, depending on the model.

6Owner’s Manual 29 Maintenance and Service ENGLISH Filter Name Filter DescriptionDeodorizationfilter• Dry for 3 hours in sunlight orunder fluorescent light.• It is recommended to clean itevery six months. (assuming 8hours of daily use)• Washing the filter with watercould damage or deform it.PM1.0 filter• Clean the filter withoutdisassembling it.• Submerge the PM1.0 filter inwater, shaking it several timesto clean it.• If the filter is very dirty, soak itfor 30 minutes in lukewarmwater with mild detergent andrinse thoroughly with cleanwater. (Do not use acidicdetergents such as citric acid.)• It is recommended to clean itevery six months.• Dry it thoroughly in the shadefor about a day. (If there is anyremaining moisture, the buzzerwill sound 7 times.)Drying with a hot air heater,such as a hair dryer or a heater,could damage or deform thefilter.• The inside of the filter is sharp,so do not rub or touch it directly. CAUTION

• Be careful that the filter case is correctly assembledto the filter holder.• Be careful not to drop the front grille when removingthe filter.• Do not wash the dust filter with hot water over 40 °Cor volatile liquids.• Do not wash the photocatalytic Deodorization filter inwater.• After cleaning the PM1.0 filter, the buzzer sounds 7times if the water is not completely dry. Dry the filterthoroughly.• Drying the filter near a fire or in direct sunlight maycause damage to the filter.• Wear gloves during installation.• The quantity and type of filters provided by eachmodel may differ.• The feature may be changed according to the type ofmodel.• Some functions may not be supported, depending onthe model. Filter Information

NOTE30 Indoor Unit Maintenance and Service Cleaning the PM1.0 Sensor PM1.0 Sensor

1. As shown in the figure below, put your finger in

2. Open the front panel and lower the PM1.0

Sensor case as shown in the figure below.

3. Once the PM1.0 Sensor case is lowered all the

way, turn the PM1.0 Sensor case to secure it as shown in the figure below.

4. Open the PM1.0 sensor cover on the side of the

5. Use a slightly wet cotton swab to wipe dust off

the lens, and then use a dry swab to remove the moisture.

6. Close the PM1.0 Sensor case cover, then install

the PM1.0 Sensor case in its original position. WARNING

• For safety, turn off the main power switch.

• Be careful not to drop the product when removing the PM1.0 Sensor corner cover.

• Be careful of falling accidents when cleaning the PM1.0 Sensor.

• It is recommended to clean it every six months. (assuming 8 hours of daily use)

• PM1.0 Sensor is only included with Air purification panel.

• The feature may be changed according to the type of model.

• Some functions may not be supported, depending on the model. NOTE !Owner’s Manual 31 Maintenance and Service ENGLISH Ceiling Cassette - 4Way Air Filter Rack Air Filter Air IntakeWired Remote Controller(Accessory)Air OutletWired Remote Controller(Accessory)Air Filter Air IntakeAir Outlet Grille, Case, and Remote Control

Turn the system off before cleaning. To clean, wipe witha soft, dry cloth. Do not use bleach or abrasives.Supply power must be disconnected before cleaning theindoor unit. NOTE

1. Remove the Air filters.

Take hold of the tab and pull slightlyforward to remove the filter. CAUTION When the air filter is to be removed, do nottouch the metal parts of the indoor unit. It may cause an injury.2. Clean dirt from the air filter using avacuum cleaner or washing with water. If dirt is conspicuous, wash with a neutraldetergent in lukewarm water. If hot water (40 °C or more) is used, it may bedeformed.3. After washing with water, dry well inthe shade. Do not expose the air filter to directsunlight or heat from a fire when drying it.4. Install the air filter.

Air Filters The air filters behind the front grille should be checked andcleaned once every 2 weeks or more often if necessary. CAUTION Before performing any maintenance, turn off the main power to the system.

n Never use any of the followings:• Water hotter than 40 °C.Could cause deformation and/or discoloration.• Volatile substances.Could damage the surfaces of the air conditioner.

R32 Indoor Unit Maintenance and Service Cleaning the deodorization filter/PM1.0 filter (Optional)

1. Press the fixing hooks on both sides and open the

front grille. CAUTION

• Be careful that the filter case is correctly assembled to the filter holder.

• Be careful not to drop the front grille when removing the filter.

• Do not wash the dust filter with hot water over 40 °C or volatile liquids.

• Do not wash the photocatalytic Deodorization filter in water.

• After cleaning the PM1.0 filter, the buzzer sounds 7 times if the water is not completely dry. Dry the filter thoroughly.

• Drying the filter near a fire or in direct sunlight may cause damage to the filter.

• Wear gloves during installation.

• The quantity and type of filters provided by each model may differ.

• The feature may be changed according to the type of model.

• Some functions may not be supported, depending on the model.

NOTE WARNING For safety, turn off the main power switch.

2. Remove PM1.0 filter by pressing the fixing hook.

3. Remove the photocatalyst Deodorization filter by

4. After assembling in reverse order, close the front

grille. Filter Information Filter Name Filter Description Deodorization filter

• Dry for 3 hours in sunlight or under fluorescent light.

• It is recommended to clean it every six months. (assuming 8 hours of daily use)

• Washing the filter with water could damage or deform it. PM1.0 filter

• Clean the filter without disassembling it.

• Submerge the PM1.0 filter in water, shaking it several times to clean it.

• If the filter is very dirty, soak it for 30 minutes in lukewarm water with mild detergent and rinse thoroughly with clean water. (Do not use acidic detergents such as citric acid.)

• It is recommended to clean it every six months.

Dry it thoroughly in the shade for about a day. (If there is any remaining moisture, the buzzer will sound 7 times.) Drying with a hot air heater, such as a hair dryer or a heater, could damage or deform the filter.

• The inside of the filter is sharp, so do not rub or touch it directly.Owner’s Manual 33 Maintenance and Service ENGLISH Tighten the rubber cap, close the PM1.0 sensor case,and assemble the PM1.0 Sensor corner cover to itsoriginal position. Rubber cap PM 1.0 sensor case WARNING
• For safety, turn off the main power switch.• Be careful not to drop the product when removingthe PM1.0 Sensor corner cover.• Be careful of falling accidents when cleaning thePM1.0 sensor.• It is recommended to clean it every six months.(assuming 8 hours of daily use)• PM1.0 Sensor is only included with Airpurification panel.• The feature may be changed according to thetype of model.• Some functions may not be supported,depending on the model.

Cleaning the PM1.0 Sensor PM1.0 Sensor1. Remove the PM1.0 Sensor corner cover on thefront panel.

2. Open the PM1.0 sensor case on the side of the

PM1.0 Sensor case and remove the rubber cap.

3. Use a cotton swab to wipe the dirt off the lens, andthen use a dry swab to remove the moisture.34 Indoor Unit

Maintenance and Service Air Filter Air IntakeAir OutletWired Remote Controller(Accessory) Hook Hook Grille, Case, and Remote Control

Turn the system off before cleaning. To clean, wipe witha soft, dry cloth. Do not use bleach or abrasives.Supply power must be disconnected before cleaning theindoor unit. NOTE

1. Remove the Air filters.

Take hold of the tab and pull slightlyforward to remove the filter. CAUTION When the air filter is to be removed, do nottouch the metal parts of the indoor unit. It may cause an injury.2. Clean dirt from the air filter using avacuum cleaner or washing with water. If dirt is conspicuous, wash with a neutraldetergent in lukewarm water. If hot water (40 °C or more) is used, it may bedeformed.3. After washing with water, dry well inthe shade. Do not expose the air filter to directsunlight or heat from a fire when drying it.

4. Install the air filter.

Air Filters The air filters behind the front grille should be checked andcleaned once every 2 weeks or more often if necessary. CAUTION Before performing any maintenance, turn off the main power to the system.

n Never use any of the followings:• Water hotter than 40 °C.Could cause deformation and/ordiscoloration.• Volatile substances.Could damage the surfaces of the air conditioner. Ceiling Cassette - Round

ROwner’s Manual 35 Maintenance and Service ENGLISH Grille, Case, and Remote Control

Turn the system off before cleaning. To clean, wipe witha soft, dry cloth. Do not use bleach or abrasives.Supply power must be disconnected before cleaning theindoor unit. NOTE n Never use any of the followings:• Water hotter than 40 °CCould cause deformation and/ordiscoloration.• Volatile substancesCould damage the surfaces of the airconditioner. Air Filters The air filters behind Indoor unit (the suction side) should be checked and cleaned onceevery 2 weeks or more often if necessary. CAUTION Before performing any maintenance, turn off the main power to the system.

1. Remove the Air filters.

Take hold of the tab and pull slightlyforward to remove the filter. CAUTION When the air filter is to be removed, do nottouch the metal parts of the indoor unit. It may cause an injury.2. Clean dirt from the air filter using avacuum cleaner or washing with water. If dirt is conspicuous, wash with a neutraldetergent in lukewarm water. If hot water (40 °C or more) is used, it maybe deformed.3. After washing with water, dry well inthe shade. Do not expose the air filter to directsunlight or heat from a fire when drying it.4. Install the air filter.

Ceiling Concealed Duct

• The feature can be changed according to the type of model. Air-FilterAir filtersAir outlet ventsAir outlet ventAir filters

R36 Indoor Unit Maintenance and Service CAUTION Before performing any maintenance, turn off the main power to the system, disconnect the circuit breaker and unplug the power cord.

Clean the unit with a soft dry cloth. Do not use bleach or abrasives. CAUTION Never use any of these

• Water hotter than 40 °C. It may cause deformation and discoloration.

Volatile substances. They may damage the surface of the air conditioner. Air Filters The air filters behind the front panel / grill should be checked and cleaned once in every 2 weeks or more often if necessary. To remove the filters see the self explanatory diagrams for each model type. Clean the filters with a vacuum cleaner or warm soapy water. If dirt is not easily removed, wash with a solution of detergent in luke warm water. Dry well in shade after washing and reinstall the filters back in place. Plasma Filters The plasma filters behind the air filter should be checked and cleaned once in every 3 months or more often if necessary. To remove the filters see the self explanatory diagrams for each model type. Clean the filters with a vacuum cleaner. If it is dirty wash it with water and dry well in shade an install back in place. Deodorizer Filters Remove the deodorizer filters behind the air filter and expose them in direct sunlight for 2 hours. And then insert these filters into original position.

Removal of Filters Art Cool Type : Pull out the upper section of front panel and lift it up. Take out a filter with front panel held. With PUSH button pressed, pull out grip to take out a plasma filter. Dry it completely in the shade after cleaning. Then set a plasma filter and a filter orderly. Put the hook of front panel onto the hanger, in order to close the front panel. CAUTION Don't touch this plasma filter within 10 seconds after opening the inlet grille, it may cause an electric shock.

1. Turn off power and then open

the upper part of front panel.

2. Pull out the both links of lower

part of front panel, as described in the below picture.

3. Push and close the top part of

the front panel and then pull the bottom part of the panel forward until it is secured.

4. Take out picture. 5. Turn upside-down of the

picture and turn over mat, then take off a protective tape attached at the mat.

6. Place the picture/photograph

between the exited picture and mat. (Recommended size of a photo/picture: 450 mm x 450 mm)

7. Cover mat and press down

with hand(s) until contacting closely.

8. Slide the photo graph/drawing

requested under both hanger parts as following, and fix them. Press the front panel lightly to close.

9. Push both links of lower part of

panel inside and fix it. Then turn on. In case a mat is not used, recommended size of a photo/picture: 522 mm x 522 mm When powering on after replacing filter and picture, the front panel doesn't intervene. Mat 450 mm450 mm522 mm522 mm Mat Protective tape How to replace picture & photograph38 Indoor Unit Maintenance and Service CAUTION Before performing any maintenance, turn off the main power to the system. Never use any of the followings:• Water hotter than 40 °C. Could cause deformation and/or discoloration.• Volatile substances. Could damage the surfaces of the air conditioner. Air Filters The air filters behind the front panel / grill should be checked and cleaned once inevery 2 weeks or more often if necessary. To remove the filters see the selfexplanatory diagrams for each model type. Clean the filters with a vacuum cleaneror warm soapy water. If dirt is not easily removed, wash with a solution of detergentin luke warm water. Dry well in shade after washing and reinstall the filters back inplace.

Wall Mounted Operation lampSignal ReceiverAir Filter Horizontal vaneVertical louverAir outletFront grilleAir inletON/OFF buttonFront grille Air filter On/Off buttonSignal receiver Display

ir deflector (Vertical louver & Horizontal vane)Air outlet * The feature can be changed according to type of model.4. Clean the filter with a vacuum cleaner or with warm water.- If dirt is difficult to remove, wash the filter in lukewarm water with detergent.5. Dry the filter in the shade.* The feature can be changed according to type of model.3. 5~24 kBtu/h : Hold the knob of air filter, Lift it up slightly and remove it from the unit.30~36 kBtu/h : Pull the filter tab slightly forward to remove the air filter. Clean the air filter Clean the air filter once every 2 weeks or more if necessary.1. Turn off the power and unplug the power cord.2. 5~24 kBtu/h : Hold the knob of air filter, Lift it up slightly. 30~36 kBtu/h : Open the front panel as shown. The air filter can be broken when it is bended. NOTE 5~24 kBtu/h30~36 kBtu/h5~24 kBtu/h30~36 kBtu/h

ROwner’s Manual 39 Maintenance and Service ENGLISH Grille, Case, and Remote Control

Turn the system off before cleaning. To clean, wipe with a soft, dry cloth. Do not use bleach or abrasives.Supply power must be disconnected before cleaning the indoor unit. NOTE Air Filters The air filters behind the front grille should be checked and cleaned once in every 2 weeks or more often ifnecessary.1. Lift the front access panel and pull the filter tab slightly forward to remove the filter.2. Clean the filter with a vacuum cleaner or warm, soapy water.• If dirt is conspicuous, wash with a solution of detergent in lukewarm water.• If hot water (40 °C or more) is used, it may be deformed.3. After washing with water, dry well in the shade.4. Re-install the air filter.n Never use any of the followings:• Water hotter than 40 °C. Could cause deformation and/or discoloration.• Volatile substancesCould damage the surfaces of the air conditioner. Convertible CAUTION Before performing any maintenance, turn off the main power to the system.

R40 Indoor Unit Maintenance and Service Console Cleaning of Panel and filters Clean the unit with a soft dry cloth. Do not use bleach or abrasives. CAUTION Never use any of these • Water hotter than 40 °C. It may cause deformation and discoloration.• Volatile substances. They may damage the surface of the air conditioner.

Removal of Grille 1. Open the front grille by pulling forward2. Then pull out the link of grille from groove in front panel.3. Then pull out 2 hinges of grille from grooves in front panel. CAUTION Before performing any maintenance, turn off the main power to the system, disconnect the circuit breaker andunplug the power cord.

Air Filters The air filters behind the front panel / grill should be checked and cleaned once in every 2 weeks or more often if necessary. To remove the filters see the self explanatory diagrams below. Clean the filters with a vacuum cleaner or warm soapy water. If dirt is not easily removed, wash with a solution of detergent in luke warm water. Dry well in shade after washing and reinstall the filters back in place. Allergy Filter Remove the Allergy Filter behind the air filter and expose them in direct sunlight for 2 hours. And then insert these filters into original position. Removal of Filters 1. Pull down the filter tab slightly toremove the air filter.2. Hold the tabs of the frame, andremove the claws in 4 places.Owner’s Manual 41 Maintenance and Service ENGLISH Operation Tips Helpful information The air filters and your electric bill. If the air filtersbecome clogged with dust, the cooling capacitywill drop, and 6 % of the electricity used to operatethe air conditioner will be wasted.When it is not going to be used for a long time.When the air conditioner is to be used again.Operate the air conditioner at thefollowing settings for 2 to 3 hours.• Type of operation: Fan operation mode.• This will dry out the internal mechanisms.Turn off the breaker. Clean the air filter and install it in theindoor unit.Check that the air inlet and outlet of theindoor/outdoor unit are not blocked.Check that the ground wire isconnected correctly. It may be connectto the indoor unit side.Do not overcool the room.This is not good for the healthand wastes electricity.Keep blinds or curtainsclosed.Do not let direct sunshineenter the room when the airconditioner is in operation.Keep the room temperatureuniform.Adjust the vertical andhorizontal airflow direction toensure a uniform temperaturein the room.Make sure that the doors and windows are shut tight.Avoid opening doors andwindows as much as possibleto keep the cool air in theroom.Clean the air filter regularly.Blockages in the air filterreduce the airflow and lowercooling and dehumidifyingeffects. Clean at least onceevery two weeks.Ventilate the roomoccasionally.Since windows are keptclosed, it is a good idea toopen them and ventilate theroom now and then.Turn off the breaker when the air conditioneris not going to be used for a long time.Dirt may collect and may cause a fire. When the air conditioner is not going to be used for a long time CAUTION !42 Indoor Unit Maintenance and Service Before you call for service... Check the following points before requesting repairs or service.... If the malfunction persist, please contact your dealer. Troubleshooting Tips! Save time and money! NOTE

• Water resistant: The outdoor side of this appliance is WATER RESISTANT. The indoor side is not water resistant and should not be exposed to excess water.

• Some functions may not be supported, depending on the model. The air conditioner does not operate.

• Have you made a mistake in timer operation?

• Has the fuse blown or has the circuit breaker been tripped? The room has a peculiar odor.

• Check that this is not a damp smell exuded by the walls, carpet, furniture or cloth items in the room. It seems that condensation is leaking from the air conditioner.

• Condensation occurs when the airflow from the air conditioner cools the warm room air. Air conditioner does not operate for about 3 minutes when restart.

• This is the protector of the mechanism.

• Wait about three minutes and operation will begin. Does not cool or heat effectively.

• Is the air filter dirty? See air filter cleaning instructions.

• The room may have been very hot when the room air conditioner was first turned on. Allow time for it to cool down.

• Has the temperature been set incorrectly?

• Are the indoor unit's air inlet or outlet vents obstructed? The air conditioner operation is noisy.

• For a noise that sounds like water flowing. - This is the sound of freon flowing inside the air conditioner unit.

• For a noise that sounds like the compressed air releasing into atmosphere. - This is the sound of the dehumidifying water being processed inside the air conditioning unit. Crack sound is heard.

• This sound is generated by the expansion/ constriction of the front panel, etc. due to changes of temperature. Remote control display is faint, or no display at all.

• Are the batteries depleted?

• Are the batteries inserted in the opposite (+) and (-) directions?  The air conditioner changes generated airflow during operation.

• When the air conditioner reaches the desired temperature, the airflow rate reduces in order to avoid generating cool airflow during heating, or to minimize energy consumption and indoor humidity change during cooling. - This symptom is normal. The buzzer sounds. (7 times)

• Is the suction panel completely closed? Close the suction grille completely.

• Is the water completely dried after cleaning PM1.0 filter? If moisture remains, let it dry in the shade for about a day.

Deodoriserend filter

• The information for Eco design is available on the following free access website. https://www.lg.com/global/support/cedoc/cedoc