LG Air Conditioner Owner's Manual

Safety Instructions

READ ALL INSTRUCTIONS BEFORE USE

Your safety and the safety of others are very important. We have provided many important safety messages in this manual and on your appliance. Always read and follow all safety messages.

⚠️ This is the safety alert symbol. This symbol alerts you to potential hazards that can kill or injure you and others. All safety messages will follow the safety alert symbol and either the word WARNING or CAUTION.

These words mean:

WARNING You may be killed or seriously injured if you do not follow instructions.

CAUTION You may be injured or cause damage to the product if you do not follow instructions. All safety messages will tell you what the potential hazard is, tell you how to reduce the chance of injury, and tell you what may happen if the instructions are not followed.

The following symbols are displayed on units:

• A2L ? This symbol indicates that this appliance uses a flammable refrigerant. If the refrigerant is leaked and exposure to an external ignition source, there is a risk of fire.
• ? This symbol indicates that the Operation Manual should be read carefully.
• ?️ This symbol indicates that a service personnel should be handling this equipment with reference to the Installation Manual.
• ℹ️ This symbol indicates that information is available such as the Operating Manual or Installation Manual.

Important Safety Instructions

WARNING To reduce the risk of explosion, fire, death, electric shock, scalding or injury to persons when using this product, follow basic precautions, including the following:

INSTALLATION

• Before use, the appliance must be properly installed as described in this manual.
• Contact the authorized service technician for repair or maintenance of this unit.
• Contact the installer for installation of this unit.
• When the power cord is to be replaced, replacement work shall be performed by authorized personnel only using only genuine replacement parts.
• Installation work must be performed in accordance with the National Electric Code by qualified and authorized personnel only.
• Connect to a properly rated, protected, and sized power circuit to avoid electrical overload.
• Always plug into a grounded outlet.
• Do not under any circumstances, cut or remove the third (ground) prong from the power cord.
• When installing or moving the appliance, be careful not to pinch, crush, or damage the power cord.
• Plug in the power plug properly.
• Do not modify or extend the power cord.
• 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.
• Use a dedicated circuit.
• Do not disassemble or modify the product.
• Adhere to all industry recommended safety procedures including the use of long-sleeved gloves and safety glasses.
• Disconnect the power cord or circuit breaker before installing or servicing the appliance.
• Keep packaging materials out of the reach of children. These materials can pose a suffocation risk to children.
• Store and install the product where it will not be exposed to temperatures below freezing or exposed to outdoor weather conditions.
• Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.
• Do not install the unit in potentially explosive atmospheres.
• Piping material, pipe routing, and installation shall include protection from physical damage in operation and service, and be in compliance with national and local codes and standards, such as ASHRAE 15, IAPMO Uniform Mechanical Code, ICC International Mechanical Code, or CSA B52. All field joints shall be accessible for inspection prior to being covered or enclosed.
• In order to avoid a hazard due to inadvertent resetting of the thermal cut-out, this appliance must not be supplied through an external switching device, such as a timer, or connected to a circuit that is regularly switched on and off by the utility.

Operation

Use this appliance only for its intended purpose.

Never attempt to operate this appliance if it is damaged, malfunctioning, partially disassembled, or has missing or broken parts, including a damaged cord or plug.

Repair or immediately replace all power cords that have become frayed or otherwise damaged. Do not use a cord that shows cracks or abrasion damage along its length or at either end.

Do not run cord under carpets or mats where it could be stepped on and damaged.

Keep the cord out from under heavy objects like tables or chairs.

Do not place the power cord near a heat source.

Do not use an adaptor or plug the product into a shared outlet.

Do not tamper with controls.

If you detect a strange sound, a chemical or burning smell, or smoke coming from the appliance, unplug it immediately, and contact the LG Electronics Customer Information Center.

Never unplug the appliance by pulling on the power cord. Always grip the plug firmly and pull straight out from the outlet.

Do not grasp the power cord or touch the appliance controls with wet hands.

If water enters the product, turn off the power at the main circuit, then unplug the product and call for service.

If the product has been submerged, contact the LG Electronics Customer Information Center for instructions before resuming use.

Unplug the product when unused for long periods.

Unplug the product before cleaning.

In the event of a gas leak (propane gas, etc.) do not operate this or any other appliance. Open a window or door to ventilate the area immediately.

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 the use of the appliance by a person responsible for their safety.

The interior of the product must only be cleaned by an authorized service center or a dealer.

Do not use solvent-based detergent on the product. Doing so can cause corrosion or damage, product failure, electrical shock, or fire.

Children should be supervised to ensure that they do not play with the air conditioner.

Do not start/stop operation by plugging/unplugging the power cord.

Grounding Instructions

The power cord of this appliance is equipped with a three-prong (grounding) plug. Use this with a standard three-slot (grounding) wall power outlet to minimize the hazard of electric shock. The customer should have the wall receptacle and circuit checked by a qualified electrician to make sure the receptacle is properly grounded. DO NOT CUT OR REMOVE THE THIRD (GROUND) PRONG FROM THE POWER PLUG.

Situations when the appliance will be disconnected occasionally: Because of potential safety hazards, we strongly discourage the use of an adapter plug. However, if you wish to use an adapter, a TEMPORARY CONNECTION may be made. Use UL-listed adapter, available from most local hardware stores. The large slot in the adapter must be aligned with the large slot in the receptacle to assure a proper polarity connection.

Attaching the adapter ground terminal to the wall receptacle cover screw does not ground the appliance unless the cover screw is metal, and not insulated, and the wall receptacle is grounded through the house wiring. The customer should have the circuit checked by a qualified electrician to make sure the receptacle is properly grounded.

Disconnect the power cord from the adapter, using one hand on each. Otherwise, the adapter ground terminal might break. Do not use the appliance with a broken adapter plug.

Situations when the appliance will be disconnected often: Do not use an adapter plug in these situations. Unplugging the power cord frequently can lead to an eventual breakage of the ground terminal. The wall power outlet should be replaced by a three-slot (grounding) outlet instead.

Caution

To reduce the risk of minor or moderate injury to persons, malfunction, or damage to the product or property when using this product, follow basic precautions, including the following:

INSTALLATION

• Take care when installing the product that exhaust or condensation does not damage nearby property.
• Follow installation instructions exactly to avoid excessive vibration or water leakage.
• Wear gloves and use caution when unpacking and installing the appliance. Screws or sharp edges can cause injuries.
• When installing or moving the appliance, be careful not to pinch, crush, or damage the power cord.
• The supply and return air openings in the conditioned space may have the body of the appliance may be installed in open areas such as false ceilings not being used as return air plenums, as long as the conditioned air does not directly communicate with the air of the false ceiling.

OPERATION

• This appliance is not intended for use as a precision refrigeration system. Do not use it for special purposes such as maintaining pets, food, precision machinery, or art objects.
• Make sure the air inlet and outlet are free from obstructions.
• Do not step on or place heavy objects on top of the appliance.
• Do not operate the appliance without the filter securely installed.
• Do not drink water drained from the appliance.
• Be sure to ventilate sufficiently when the air conditioner and a heating appliance such as a heater are used simultaneously.
• Do not expose people, animals, or plants to the cold or hot wind from the air conditioner for extended periods of time.
• Remove the batteries if the remote control is not to be used for an extended period of time.
• Never mix different types of batteries, or old and new batteries for the remote control.
• Stop using the remote control if there is a fluid leak in the battery. If your clothes or skin are exposed to the leaking battery fluid, wash off with clean water.
• If the leaking battery fluid has been swallowed, rinse the inside of the mouth thoroughly and consult a doctor.
• Do not recharge or disassemble the batteries.

MAINTENANCE

• Clean the filter every two weeks.
• Never touch the metal parts of the air conditioner when removing the air filter.
• Never use strong cleaning agents or solvents when cleaning the air conditioner or spray water. Use a smooth cloth.
• Use a soft cloth to clean the appliance. Do not use waxes, thinners, or harsh detergents.

Refrigerant (for R32 Only)

A2L WARNING

• Do not use means to accelerate the defrosting process or to clean, other than those recommended by the manufacturer.
• The appliance shall be stored in a room without continuously operating open flames (for example an operating gas appliance) and ignition sources (for example an operating electric heater).
• Do not pierce or burn.
• Be aware that flammable refrigerants may not contain an odour.
• The installation of pipe-work shall be kept to a minimum.
• National gas regulations shall be observed.
• Mechanical connections shall be accessible for maintenance purpose.
• The appliance shall be stored in a well-ventilated area where the room size corresponds to the room area as specified for operation.

CAUTION

• This unit contains flammable refrigerant and has special safety precautions not normally associated with older units. Please follow all precautions and advisories.
• Use caution while handling and prevent damage to unit. Do not put any holes into product for any reason. This can cause damage to product and prevent unit from cooling.
• Maintenance and cleaning of unit should be performed by trained personnel. Failure to properly clean unit can result in damage to the refrigeration system and or the electrical system.
• Keep any required ventilation openings clear of obstruction.
• Service should only be performed by technicians properly trained and certified in the use of flammable refrigerants. Any service performed by unauthorized servicers/individuals will void all warranties.
• When storing the appliance, do not put in a room with any open flame appliance, such as gas water heaters or furnaces. Also keep away from electric heaters. Damaged units should be repaired before storage.
• 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 authorizes their competence to handle refrigerants safely in accordance with an industry recognized assessment specification.
• 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.
• The appliance shall be stored so as to prevent mechanical damage from occurring.
• The refrigerant and insulation blowing gas used in the appliance require special disposal procedures. Consult a service agent or a similarly qualified person before disposing of them.

SAVE THESE INSTRUCTIONS

Installation

Product Overview

Diagram Description: A diagram shows the front and side of the air conditioner unit with numbered parts. The numbers correspond to the list below.

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

1. Control Panel
2. Remote Control
3. Air Filter
4. Front Grille
5. Cabinet
6. Air Inlet
7. Air Outlet

Electrical Data

The power cord may include a current interrupter device. TEST and RESET buttons are provided on the plug case. The device should be tested on a periodic basis by first pressing the TEST button and then the RESET button. If the TEST button does not trip or if the RESET button will not stay engaged, discontinue use of the air conditioner and contact a qualified service technician.

For 120 V:

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

WARNING

• This appliance should be installed in accordance with the National Electrical Code.
• Use of extension cords could cause serious injury or death.
  • Do not use an extension cord with this window air conditioner.
  • Do not use surge protectors or multi-outlet adapters with this window air conditioner.
• Never push the TEST button during operation. Doing so can damage the plug.
• Do not remove, modify, or immerse this plug. If this device trips, the cause should be corrected before further use.

CAUTION

• The conductors inside this cord are surrounded by shields, which monitor leakage current. These shields are not grounded. Periodically examine the cord for any damage. Do not use this product in the event the shields become exposed. Avoid shock hazard. This unit cannot be user-serviced. Do not open the tamper-resistant sealed portion. All warranties and performance will be voided. This unit is not intended to be used as an ON/OFF switch.

Parts Included (Appearance May Vary)

Diagram Description: An illustration shows various parts included with the air conditioner, such as foam strips, curtain panels, brackets, and screws. Labels indicate 'Foam-PE (2) (Adhesive backed)', 'Foam strip (Non-adhesive)', 'Left curtain panel', 'Upper Guide', 'Supporter (2)', 'Right curtain panel', 'L bracket (3)'.

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

Screws: Type "A" Screws (6), Type "B" Screws (5)

Tools Needed

Diagram Description: Icons representing tools are shown: Phillips-head screwdriver, Adjustable wrench, Level, Tape measure, Scissors or Cutting knife, Pencil, Gloves.

How to Install the Unit

1. To prevent vibration and noise, make sure the unit is installed securely and firmly.
2. Install the unit out of direct sunlight.
3. There should be no obstacles, such as a fence or wall, within 20" from the back of the cabinet because it will prevent heat radiation of the condenser. Restriction of outside air will greatly reduce the cooling efficiency of the air conditioner.

Diagram Description: A side view illustration shows the air conditioner unit installed in a window. Arrows indicate 'Cooled air' flowing out and 'Heat radiation' from the back. Dimensions are shown: 'About 1/4"' tilt, 'Over 20"' clearance from the back, and '30"~60"' height from the floor.

CAUTION: DO NOT cover or block any of the side and top louvers. All side louvers of the cabinet must remain exposed to the outside of the structure and unobstructed.

1. Install the unit slightly tilted so the back is slightly lower than the front (about 1/4"). This will force condensed water to flow to the outside.
2. Install the unit with the bottom between 30"~ 60" above the floor level.

Window Requirements

This unit is designed for installation in standard double hung windows with actual opening widths from 21" to 35". The top and bottom window sashes must open sufficiently to allow a clear vertical opening of 12" from the bottom of the upper sash to the inside sill.

Diagram Description: A diagram shows a window opening with dimensions: '21" to 35"' width and '12" min' vertical opening.

NOTE:

• All supporting parts should be secured to firm wood, masonry, vinyl, fiberglass, or metal.
• This product is a window air conditioner. As such, a standard single-hung or double-hung window is required for proper installation. Non-window installations, including using sleeves or wall openings, and other installation methods are not recommended.

Storm Window Requirements

1. Windows that include a storm window frame may prevent the air conditioner from tilting down toward the outside to drain properly. For proper drainage, attach a 1" x 2" piece of wood to the inner sill, trimmed to a length which fits inside the window frame. The top of the wood shim must be at least 3/4" higher than the top of the storm window frame. Attach the wood securely to the sill with nails or screws.
2. If necessary, attach another 1" x 2" wood strip flush against the back of the inner sill. This will raise the L bracket, as shown in the drawing.

Diagram Description: An illustration shows how to install a wood strip on the inner sill to accommodate a storm window, raising the L bracket. Labels include 'Wood Strip Mounted on Top of Inner Sill', 'Inner Sill', 'L Bracket', 'Storm Window Frame', 'Outer Sill', 'Indoors', 'Outdoors'.

Preparation of the Chassis

1. Assemble two supporters with upper guide. Align holes between the upper guide and the top of the cabinet and then install it with 3 type A screws.

Diagram Description: A sequence of illustrations shows attaching supporters and the upper guide to the air conditioner cabinet using screws.

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

1. Extend the curtains in the curtain panels and insert the edges into the brackets on either side of the cabinet. Insert the top and bottom rails on the curtain guides into the upper and lower panel guides on the cabinet.

Diagram Description: Illustrations show how to attach the left and right curtain panels to the air conditioner unit.

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

1. Cut the window sash seals to the proper length. Peel off the backing and attach the adhesive-backed foam to the underside of the window sash and bottom of window frame.

Diagram Description: An illustration shows applying foam tape to the window sash and frame.

1. Open the window and draw a center line on the center of the inner sill. Then mark lines 7.5" to the left and right of the center line.

Diagram Description: A diagram shows the inner sill with a center line and marks at 7.5" to the left and right.

1. Install the L bracket behind the inner window sill, as shown. Use the 2 type A screws provided.

Diagram Description: An illustration shows the L bracket being attached to the inner window sill with screws.

NOTE: The bracket helps to hold unit securely in place. Be sure to place bracket edge flush against back of inner sill.

Unit Installation

CAUTION: During the following step, hold unit firmly until window sash is lowered to top channel behind side panel frames. Personal injury or property damage may result if unit falls from window.

1. Set the air conditioner in the window so that it is centered. Place the air conditioner so that the front edge of the bottom guide is against the back edge of the sill. Bring the window down so that the front edge of the upper guide is in front of the window. Make sure that air conditioner is level or tilting slightly to the outside.

Diagram Description: A diagram shows the air conditioner unit placed in the window frame, with the upper guide in front of the window and a slight tilt towards the outside.

1. Extend the guide panels to fill the window opening and use 5 type B screws to secure them to the window.

Diagram Description: An illustration shows the guide panels being extended and secured with screws.

1. Cut the non-adhesive foam strip to the proper length and insert it between the upper window sash and the lower window sash.

Diagram Description: An illustration shows foam strips being inserted between the window sashes.

1. To prevent broken glass or damage to windows, on vinyl or other similarly constructed windows, attach the L bracket with a type A screw.

Diagram Description: Illustrations show attaching an L bracket to vinyl and wood window frames using screws.

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

Operation

Control Panel and Remote Control

Diagram Description: Two diagrams show the control panel of the air conditioner and its remote control, with numbered buttons and indicators.

NOTE:

• The feature may be changed according to the type of model.
• On control panel surface have protection film, Please remove film before use.

Control Panel Functions:

• 1 Power: Press to turn the air conditioner ON or OFF.
• 2 Fan Speed: Press to set the Fan Speed to Auto (AU), Low (F1) or High (F2).
• 3 Delay ON/OFF Timer:
  • Delay ON: When the air conditioner is off, set it to automatically turn on from 1 to 24 hours later, at its previous mode and fan settings.
  • Delay OFF: When the air conditioner is on, set it to automatically turn off from 1 to 24 hours later.

  NOTE: Each press of the Timer button advances the timer by 1 hour. After the last press the display returns to the temperature setting.

Remote Control Functions:

• 4 Operation Mode: Press the Mode button to cycle between 4 types of air conditioner operation: Energy Saving / Cool / Dry / Fan.
  • Energy Saving: This mode increases the temperature to the optimal level for minimizing power consumption.

    NOTE: The temperature automatically sets to 72 °F if set temperature is below 72 °F. The temperature automatically increases to 78 °F if set temperature is below 78 °F.

  • Cool: This mode is ideal on hot days to cool and dehumidify the room quickly. Use the Temp < ^ buttons to set the desired room temperature and use the Fan Speed button to set the desired fan circulation speed.
  • Dry: This mode is ideal for rainy and damp days to dehumidify the room rather than cooling it significantly. Humidity is removed from the room by the combination of compressor operation and the fan speed fixed at Low. The compressor and fan turn off once the set temperature is reached. Fan speed cannot be adjusted in Dry mode.
  • Fan: In this mode the fan circulates air but the compressor does not run. Use the Fan Speed button to set fan speed to Auto (AU), Low (F1) or High (F2). In this mode, you cannot adjust the set temperature.

• 5 Wi-Fi (Wi-Fi Model Only): Enables connection of the air conditioner to the home Wi-Fi. Press Power button 3 seconds to use Wi-Fi.

  NOTE: Follow instructions on LG ThinQ application on how to connect to your unit.

• 6 Temperature Control: The thermostat monitors room temperature to maintain the desired temperature. The thermostat can be set between 16 °C–30 °C (60 °F–86 °F). Press or arrows to increase or decrease temperature setting.

  NOTE:

  • Auto Restart: If the air conditioner turns off due to a power outage, it will restart automatically once the power is restored, with the same settings as were set before the unit turned off.
  • The remote control will not function properly if the AC infrared sensor is exposed to direct light or if there are obstacles between the remote controller and the air conditioner.

Using the Light Off Function

You can set the brightness of the control panel:

• Press [Light Off] button on the control panel for 3 seconds, or
• Press [Light Off] button on the remote control for 3 seconds.

NOTE: If the brightness of an indoor appliance's display is set to OFF, pressing a button on the remote control automatically turns the display on for 5 seconds. This function may operate differently, depending on the model.

Using the Mute Function

You can turn on/off the unit's buzzer sound:

• Press [Mute] button on the control panel for 3 seconds, or
• Press [Mute] button on the remote control for 3 seconds.

Using the Auto Clean Function

In the Cooling and Dry Mode, Moisture is generated inside the indoor unit. This function removes such moisture.

• Press Timer button on the remote control for 3 seconds.
• 'Co' is displayed on the display screen.

NOTE:

• When using the product for the first time, the Auto Clean function is not set.
• If you turn off the unit, the fan continues to run for 10-20 minutes and cleans inside of the indoor unit.

Using the Child Lock Function

You can set the lock function to prevent children from operating the product's control panel. Use the Child Lock function to prevent unintended operation or damage.

• Press Fan speed button 3 seconds to turn the Child Lock function on or off.
• 'CL' is displayed on the display screen.

NOTE: The remote control operates normally even when the lock function is enabled.

Using the Clean Filter Function

The EF LED lights up to notify you that the filter needs to be cleaned. After cleaning the filter, press the Mode button on the control panel or remote control 3 seconds to turn off the EF light.

NOTE: This feature is a reminder to clean the air filter for more efficient operation. The LED light turns on after 250 hours of operation.

Wireless Remote Control

Inserting Batteries

1. Push out the cover on the back of the remote control with your thumb.
2. With the plus and minus poles facing as marked, and insert two new AAA 1.5 V batteries.
3. Reattach the cover.

NOTE:

• Two new batteries are supplied with the air conditioner for use in the remote control.
• Do not use a rechargeable battery. Make sure that the battery is new.
• In order to prevent discharge, remove the battery from the remote control if the air conditioner is not going to be used for an extended period of time.
• Keep the remote control away from extremely hot or humid places.
• To maintain optimal operation of the remote control, the remote sensor should not be exposed to direct sunlight.

Air Direction

Airflow can be adjusted by changing the direction of the air conditioner's louvers.

Adjusting Horizontal Airflow Direction

The horizontal airflow is adjusted by moving the levers of the vertical louvers to the left or right.

NOTE:

• The feature may be changed according to the type of model.
• When the weather is extremely hot, the unit may turn off automatically to protect the compressor.

Smart Functions

LG ThinQ Application

This feature is only available on models with the LG or ThinQ logo.

The LG ThinQ application allows you to communicate with the appliance using a smartphone.

LG ThinQ Application Features

Communicate with the appliance from a smartphone using the convenient smart features.

Smart Diagnosis™

If you experience a problem while using the appliance, this smart diagnosis feature will help you diagnose the problem.

Settings

Allows you to set various options on the appliance and in the application.

NOTE:

• If you change your wireless router, internet service provider, or password, delete the registered appliance from the LG ThinQ application and register it again.
• The application is subject to change for appliance improvement purposes without notice to users.
• Functions may vary by model.

Before Using LG ThinQ Application

1. Check the distance between the appliance and the wireless router (Wi-Fi network). If the distance between the appliance and the wireless router is too far, the signal strength becomes weak. It may take a long time to register or installation may fail.
2. Turn off the Mobile data or Cellular Data on your smartphone.

Diagram Description: Two icons show a smartphone with data off and connecting to a router.

Connecting to Wireless Router

Connect your smartphone to the wireless router.

NOTE:

• To verify the Wi-Fi connection, check that Wi-Fi LED on the control panel is lit.
• The appliance supports 2.4 GHz Wi-Fi networks only. To check your network frequency, contact your Internet service provider or refer to your wireless router manual.
• LG ThinQ is not responsible for any network connection problems or any faults, malfunctions, or errors caused by network connection.
• If the appliance is having trouble connecting to the Wi-Fi network, it may be too far from the router. Purchase a Wi-Fi repeater (range extender) to improve the Wi-Fi signal strength.
• The Wi-Fi connection may not connect or may be interrupted because of the home network environment.
• The network connection may not work properly depending on the Internet service provider.
• The surrounding wireless environment can make the wireless network service run slowly.
• The appliance cannot be registered due to problems with the wireless signal transmission. Unplug the appliance and wait about a minute before trying again.
• If the firewall on your wireless router is enabled, disable the firewall or add an exception to it.
• The wireless network name (SSID) should be a combination of English letters and numbers. (Do not use special characters.)
• Smartphone user interface (UI) may vary depending on the mobile operating system (OS) and the manufacturer.
• If the security protocol of the router is set to WEP, you may fail to set up the network. Please change it to other security protocols (WPA2 is recommended) and register the product again.