LG Wall Mounted Air Conditioner Owner’s Manual

Read this owner’s manual thoroughly before operating the appliance and keep it handy for reference at all times.

TYPE: WALL MOUNTED

www.lg.com

This manual may contain images or content different from the model you purchased.
This manual is subject to revision by the manufacturer.

SAFETY INSTRUCTIONS

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.

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.
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.

The following symbols are displayed on indoor and outdoor units. (for R32)

IMPORTANT SAFETY INSTRUCTIONS

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

Children in the Household
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.

For use in Europe:
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.

Installation

Do not install the air conditioner on an unstable surface or in a place where there is danger of it falling.
Contact an authorized service center when installing or relocating the air conditioner.
Install the panel and the cover of the control box safely.
Do not install the air conditioner in a place where flammable liquids or gases such as gasoline, propane, paint thinner, etc., are stored.
Make sure that the pipe and the power cable connecting the indoor and outdoor units are not pulled too tight when installing the air conditioner.
Use standard circuit breaker and fuse that conform to the rating of the air conditioner.
Do not input air or gas into the system except with the specific refrigerant.
Use non-flammable gas (nitrogen) to check for leak and to purge air; using compressed air or flammable gas may cause fire or explosion.
The indoor/outdoor wiring connections must be secured tightly, and the cable should be routed properly so that there is no force pulling the cable from the connection terminals. Improper or loose connections can cause heat generation or fire.
Install dedicated electric outlet and circuit breaker before using the air conditioner.
Do not connect the ground wire to a gas pipe, a lightning rod, or a telephone ground wire.
Keep any required ventilation openings clear of obstruction. (for R32)
Means for disconnection must be incorporated in the fixed wiring in accordance with the wiring rules.
Do not install the unit in potentially explosive atmospheres.

Operation

Be sure to use only those parts listed in the service parts list. Never attempt to modify the equipment.
Make sure that children do not climb on or hit the outdoor unit.
Dispose of the batteries in a place where there is no danger of fire.
Use only the refrigerant specified on the air conditioner label.
Cut off the power supply if there is any noise, smell, or smoke coming from the air conditioner.
Do not leave flammable substances such as gasoline, benzene, or thinner near the air conditioner.
Contact an authorized service center when the air conditioner is submerged by flood waters.
Do not use the air conditioner for an extended period of time in a small place without proper ventilation.
In the event of a gas leak (such as Freon, propane gas, LP gas, etc.) ventilate sufficiently before using the air conditioner again.
To clean the interior, contact an authorized service center or dealer. Using harsh detergents may cause corrosion or damage to the unit.
Be sure to ventilate sufficiently when the air conditioner and a heating appliance such as a heater are used simultaneously.
Do not block the inlet or outlet of air flow.
Do not insert hands or other objects through the air inlet or outlet while the air conditioner is operating.
Make sure that the power cable is neither dirty, loose, nor broken.
Never touch, operate, or repair the air conditioner with wet hands.
Do not place any objects on the power cable.
Do not place a heater or other heating appliances near the power cable.
Do not modify or extend the power cable. Scratches or peeling insulation on the power cables may result in fire or electric shock, and should be replaced.
Cut off the power supply immediately in the event of a blackout or a thunderstorm.
Take care to ensure that power cable could not be pulled out or damaged during operation.
Do not touch refrigerant pipe, water pipe and any internal parts while the unit is operating or immediately after operation.

Maintenance

Do not clean the appliance by spraying water directly onto the product.
Before cleaning or performing maintenance, disconnect the power supply and wait until the fan stops.

Technical Safety

Installation or repairs made by unauthorized persons can pose hazards to you and others.
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. (for R32)
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)
The information contained in the manual is intended for use by a qualified service technician who is familiar with the safety procedures and equipped with the proper tools and test instruments.
Failure to read and follow all instructions in this manual can result in equipment malfunction, property damage, personal injury and/or death.
The appliance shall be installed in accordance with national wiring regulations.
When the power cord is to be replaced, the replacement work shall be performed by authorized personnel using only genuine replacement parts.
This appliance must be properly grounded to minimize risk of electric shock.
Do not cut or remove the grounding prong from the power plug.
Attaching the earth wire to the power outlet cover screw does not ground the appliance unless the cover screw is metal, uninsulated, and the power outlet is grounded through house wiring.
If you have any doubt whether the air conditioner is properly grounded, have the power outlet and circuit checked by a qualified electrician.
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.
If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly qualified person in order to avoid a hazard.
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)
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). (for R32)
The appliance shall be stored so as to prevent mechanical damage from occurring. (for R32)
Unintended use of the appliance or damage to the housing may result in the escape of dangerous UV-C radiation. UV-C radiation may, even in little doses, cause harm to the eyes and skin.
This appliance contains a UV-C lamp.
When the appliances are damaged or need to replaced, disconnect the power supply and contact the service center.
Do not operate UV-C lamp outside of the appliance.
Do not clean and touch air deflector during operation.
Before opening doors and access panels bearing the ultraviolet radiation hazard symbol for the conducting user maintenance, it is recommended to disconnect the power.
Read the maintenance instructions before opening the appliance.
Appliances that are obviously damaged must not be operated.
The appliance must be disconnected from the supply before replacing the UV-C lamp.

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

Installation

Do not install the air conditioner in an area where it is directly exposed to sea wind (salt spray).
Install the drain hose properly for the smooth drainage of water condensation.
Exercise caution when unpacking or installing the air conditioner.
Do not touch the leaking refrigerant during installation or repair.
Transport the air conditioner with two or more people or use a forklift.
Install the outdoor unit such that it is protected from direct sunlight. Do not place the indoor unit in a place where it is directly exposed to sunlight via the windows.
Safely dispose of packing materials such as screws, nails, plastic bag or batteries using proper packaging after installation or repair.
Install the air conditioner in a place where the noise from the outdoor unit or the exhaust fumes will not inconvenience the neighbors. Failure to do so may result in conflict with the neighbors.

Operation

Remove the batteries if the remote control is not to be used for an extended period of time.
Make sure that the filter is installed before operating the air conditioner.
Be sure to check if there is a refrigerant leak after installing or repairing the air conditioner.
Do not place any object on the air conditioner.
Never mix different types of batteries, or old and new batteries for the remote control.
Do not let the air conditioner run for a long time when humidity is very high or when a door or a window has been left open.
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.
Do not expose people, animals, or plants to the cold or hot wind from the air conditioner for extended periods of time.
If the leaking battery fluid has been swallowed, rinse the inside of the mouth thoroughly and consult a doctor.
Do not drink the water drained from the air conditioner.
Do not use the product for special purposes, such as preserving foods, works of art, and etc. It is an air conditioner for consumer purposes, not a precision refrigeration system. There is risk of damage or loss of property.
Do not recharge or disassemble the batteries.

Maintenance

Never touch the metal parts of the air conditioner when removing the air filter.
Use a sturdy stool or ladder when cleaning, maintaining, or repairing the air conditioner at a height.
Never use strong cleaning agents or solvents when cleaning the air conditioner or spray water. Use a smooth cloth.

OPERATION

Notes for Operation

Suggestion for Energy Saving

Do not over-cool the space. This may be harmful for your health and may consume more
electricity.
Block sunlight with blinds or curtains while you are operating the air conditioner.
Keep doors or windows closed tightly while you are operating the air conditioner.
Adjust the direction of the air flow vertically or horizontally to circulate indoor air.
Speed up the fan to cool or warm indoor air quickly, within a short period of time.
Open windows regularly for ventilation. The indoor air quality may deteriorate if the air conditioner is used for long durations.
Clean the air filter once every 2 weeks. Dust and impurities collected in the air filter may block the air flow or reduce the unit performance.

Parts and Functions

NOTE

The number and location of operation lamps may vary according to the model of the air
conditioner.
The feature may be changed according to the type of model.

Wireless Remote Control

Inserting Batteries
If the display screen of the remote control begins to fade, replace the batteries. Insert AAA (1.5 V) batteries before using the remote control.

Installing the Remote Control Holder
To protect the remote control, install the holder where there is no direct sunlight.

Choose a safe and easily accessible location.
Fix the holder by fastening 2 screws firmly with a screwdriver.

Operating Method
Point the remote control towards the signal receiver at the right side of the air conditioner to operate it.

NOTE

Setting the Current Time

NOTE

The On/Off Timer is available after setting the current time.

Using the °C/°F Conversion Function (Optional)

This function changes unit between °C and °F

Press and hold button about 5 seconds.

Operating the Air Conditioner without the Remote Control
You can use the ON/OFF button of the indoor unit to operate the air conditioner when the remote control is unavailable.

Open the front cover (Type2) or horizontal vane (Type1).
Press the ON/OFF button.

NOTE

The stepping motor may be broken, if the horizontal vane opens rapidly.
The fan speed is set to high.
The feature may be changed according to the type of model.
The temperature cannot be altered when using this emergency ON/OFF button.
For cooling & heating models, the temperature is set from 22 °C to 24 °C

Using Wireless Remote Control
You can operate the air conditioner more conveniently with the remote control.

NOTE

buttons may be changed according to the type of model.
When connected to the Multi Outdoor unit, the Energy Display, Energy Control, Silent and Smart Diagnosis function may not be supported.

NOTE

Some functions may not be supported, depending on the model.
buttons may be changed according to the type of model.
Press the Set/Cancel button to operate the selected Func.

Restarting the Air Conditioner Automatically

When the air conditioner is turned on again after a power failure, this function restores the previous settings.

Disabling Auto Restart

Open the front cover (Type2) or horizontal vane (Type1).
Press the ON/OFF button and hold it for 6 seconds, then the unit will beep twice and the lamp will blink twice 4 times.
• To re-enable the function, press the ON/OFF button and hold it for 6 seconds. The unit will beep twice and the lamp will blink 4 times.

NOTE

The feature may be changed according to the type of model.
If you press and hold the ON/OFF button for 3 – 5 seconds, instead of 6 seconds, the unit will switch to the test operation. In the test operation, the unit blows out strong cooling air for 18 minutes and then returns to factory default settings.

Using the Mode Function

This function allows you to select the desired function.

Cooling Mode

Auto Operation (Artificial Intelligence)

Multi Model
In this operation mode, the system is automatically operated by the electronic controls.

Auto Changeover Mode
Single Split Model
This mode changes the mode automatically to maintain the set temperature at ±2 °C

Dehumidification Mode
This mode removes excess moisture from a highly humid environment or during the rainy season, in order to prevent mildew from setting in. This mode adjusts the room temperature and the fan speed automatically to maintain the optimal level of humidity.

NOTE

In this mode you cannot adjust the room temperature, it is adjusted automatically.
The room temperature is not displayed on the display screen.
In the dehumidification mode, compressor and indoor fan may not operate when the room temperature is below 24 °C

Heating Mode

NOTE

Fan Mode
This mode only circulates the indoor air without changing the room temperature.

Using the Jet Mode Function

Changing Room Temperature Quickly
This function allows you to cool indoor air quickly during the summer or warm it quickly during winter.

The Jet Mode function is available with Cooling, Heating and Dehumidification Mode.

NOTE

Using the Fan Speed Function

Adjusting the Fan Speed

Press Fan Speed button repeatedly to adjust the fan speed.

NOTE

Using the Air Flow Direction Function

This function adjusts the direction of the air flow vertically (horizontally).

NOTE

Setting the On/Off Timer

This function sets the air conditioner to turn on/off automatically at desired time.
On/Off Timer can be set together.

Setting the On Timer

Canceling the On Timer

Setting the Off Timer

NOTE

This function is disabled when you set Simple Timer.

Using the Sleep Function (Optional)

This function turns off the air conditioner automatically when you go to sleep.

NOTE

is displayed on some indoor units.
Indoor unit display is displayed from 1H to 7H which is displayed only 5 seconds and then return to the setting temperature.
In the Cooling and Dehumidification Mode, the temperature increases by 1 °C after 30 minutes and additional 1 °C after another 30 minutes for a more comfortable sleep.
The temperature increases up to 2 °C from the preset temperature.
Although the remark for fan speed on the display screen may be changed, the fan speed is adjusted automatically.

Using the Simple Timer Function (Optional)

This function turns off the air conditioner automatically when you go to sleep.

NOTE

This function is disabled when you set Off Timer.

Using the Energy Display Function (Optional)

This function displays the amount of electricity generated on the indoor display as the product operates.

Display the Current Energy Usage

NOTE

The unit of the displayed value is kW.
It is not displayed on the wireless remote control.
If it is more than 99 kW, which is the range of expression, maintain it as 99 kW.
Display wattage under 10 kW with 0.1 kW unit, and display one over 10 kW with 1 kW unit.
The actual power may differ from the power displayed.
When connected to the Multi Outdoor unit, this function may not be supported.

Using the Light Off Function (Optional)

Display Screen Brightness
You can set the brightness of the indoor unit display screen.

Press Light Off button.

NOTE

Turn on/off the Display screen.

Using the Comfort Air Function (Optional)

Comfort Vane Operation
This function conveniently sets the vane to a preset position to deflect the supply air away from blowing directly onto the occupants in the room.

NOTE

Using the Energy Control Function (Optional)

Turn the appliance on.
Press Energy Ctrl button.
• Press Energy Ctrl button repeatedly to select each step.

NOTE

Using UVnano Function (Optional)

UVnano is a compound word of UV (ultraviolet rays) and nanometer (length unit).
This function reduces various bacteria inside the air conditioner.

Model name: LTPL-G35UV275GS-JA
LTPL-G35UV275GS-TWA
CUD7GF1A

Press Jet Mode button and hold it about 3 seconds.

NOTE

UV is displayed on some indoor units, depending on the model.
The UV LED operates at regular intervals to keep the fan clean.
The UVnano function stops when the air conditioner is turned off.
When Auto Clean Function starts, UVnano Function works together to keep the fan clean.
This function is disabled with Heating Mode.

Using Special Functions

Turn the appliance on.
Press Func button repeatedly to select the desired function.
Press Set/Cancel button to finish.

NOTE

Some functions may not be supported, depending on the model.
Some functions may operate differently from the remote control display.

Canceling Special Functions

Press Func button repeatedly to select the desired function.
Press Set/Cancel button to cancel the function.

Using the Air Purification Function
These functions supply clean and fresh air by ion particles and the filter.

NOTE

You can use this function without turning the air conditioner on.
Both the plasma lamp and the cooling lamp light up while Smoke Away/Plasma is in operation on some models.
Do not touch ionizer during operation.
This function may operate differently from the remote control display.

Using the Silent Function
This function prevents potential claims by neighbors, reducing noise from outdoor units.

NOTE

This function is disabled when you press Mode or Energy Ctrl or Jet Mode button.
This function is available with Cooling, Heating, Auto Changeover, Auto Operation Mode.
When connected to the Multi Outdoor unit, this function may not be supported.

Using the Auto Clean Function
In the Cooling and Dehumidification Mode, moisture is generated inside the indoor unit. This function removes such moisture.

NOTE

SMART FUNCTIONS

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

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.

NOTE

To verify the Wi-Fi connection, check that icon 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.

Installing the LG ThinQ Application
Search for the LG ThinQ application from the Google Play Store or Apple App Store on a smartphone. Follow instructions to download and install the application.

Open Source Software Notice Information
To obtain the source code under GPL, LGPL, MPL, and other open source licenses, that is contained in this product, please visit https://opensource.lge.com.

In addition to the source code, all referred license terms, warranty disclaimers and copyright notices are available for download.

LG Electronics will also provide open source code to you on CD-ROM for a charge covering the cost of performing such distribution (such as the cost of media, shipping, and handling) upon email request to This offer is valid for a period of three years after our last shipment of this product. This offer is valid to anyone in receipt of this information.

Smart Diagnosis

NOTE

For reasons not attributable to LGE’s negligence, the service may not operate due to external factors such as, but not limited to, Wi-Fi unavailability, Wi-Fi disconnection, local app store policy, or app unavailability.
The feature may be subject to change without prior notice and may have a different form depending on where you are located.

Using LG ThinQ to Diagnose Issues
If you experience a problem with your Wi-Fi equipped appliance, it can transmit troubleshooting data to a smartphone using the LG ThinQ application.

Launch the LG ThinQ application and select the Smart Diagnosis feature in the menu. Follow the instructions provided in the LG ThinQ application.

Using Audible Diagnosis to Diagnose Issues
Follow the instructions below to use the audible diagnosis method.

Launch the LG ThinQ application and select the Smart Diagnosis feature in the menu. Follow the instructions for audible diagnosis provided in the LG ThinQ application.

NOTE

For best results, do not move the phone while the tones are being transmitted.
Be sure to keep ambient noise to a minimum or the phone may not correctly receive the buzzer beeps from the indoor unit.

MAINTENANCE

WARNING

Before cleaning or performing maintenance, disconnect the power supply and wait until the fan stops.

If the air conditioner will not be used for an extended period of time, dry the air conditioner to
maintain it in best condition. Clean the product regularly to maintain optimal performance and to prevent possible breakdown.

Dry the air conditioner in Fan mode for 3 to 4 hours and disconnect the power. There may be internal damage if moisture is left in its components.
Before using the air conditioner again, dry the inner components of the air conditioner in Fan mode for 3 to 4 hours. This will help to remove the odor generated from moisture.

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

NOTE

Never use water that is higher than 40 °C when you clean the filters. It may cause deformation or discoloration.
Never use volatile substances when you clean the filters. They may damage the surface of the product.

Clean the Air Filter

Clean the air filters once every 2 weeks, or more, if necessary.

NOTE

The air filter can be broken when it is bent.
When the air filter is not assembled correctly, dust and other substances can enter into the indoor unit.

Type1
If you look at the indoor unit from above it, can assemble the top filter easily.

TROUBLESHOOTING

Self-diagnosis Function
This product has a built-in self-diagnosis function. If an error occurs, the lamp of the indoor unit will blink in 2 second intervals. If this occurs, contact your local dealer or service center.

Before Calling for Service
Please check the following before you contact the service center. If the problem persists, contact
your local service center.

NOTE

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

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LG Wall Mounted Air Conditioner Owner’s Manual

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