LG ARNU48GPTA4 User manual

MFL67870273
Rev.02_011521
OWNER’S MANUAL
AIR
CONDITIONER
www.lg.com
Please read this manual carefully before operating
your set and retain it for future reference.
FLOOR STANDING
Copyright © 2018 - 2021 LG Electronics Inc. All Rights Reserved.
ENGLISH ESPAÑOL
PORTUGUÊS

2TABLE OF CONTENTS
ENGLISH
3TIPS FOR SAVING ENERGY
4SAFETY INSTRUCTIONS
7BEFORE USE
7Preparing for operation
7Usage
7Cleaning and maintenance
7Service
8PRODUCT INTRODUCTION
8Name of parts
9Indoor unit controls and indicators
10 OPERATING INSTRUCTIONS
10 Fan Speed Setting
10 Simple Reservation
10 Child Lock Operation Function
11 Auto Re-operation Function
12 Defrost Mode
12 Airflow Setting
13 MAINTENANCE AND SERVICE
13 Indoor Unit
14 Operation Tips
15 Troubleshooting Tips! Save time and money!
15 Call the service immediately in the following situations
TABLE OF CONTENTS

TIPS FOR SAVING ENERGY 3
ENGLISH
TIPS FOR SAVING ENERGY
Here are some tips that will help you minimize the power consumption when you use the air
conditioner. You can use your air conditioner more efficiently by referring to the instructions
below:
• Do not cool excessively indoors. 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 and 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, in a short period of time.
• Clean the air filter once every 2 weeks. Dust and impurities collected in the air filter may block
the air flow or weaken the cooling / dehumidifying functions.
For your records
Staple your receipt to this page in case you need it to prove the date of purchase or for warranty
purposes. Write the model number and the serial number here:
Model number :
Serial number :
You can find them on a label on the side of each unit.
Dealer’s name :
Date of purchase :

4SAFETY INSTRUCTIONS
ENGLISH
WARNING
• Installation or repairs by unqualified persons can result in hazards to you and others.
• The information contained in the manual is intended for use by a qualified service technician
familiar with safety procedures and equipped with the proper tools and test instruments.
• Failure to carefully read and follow all instructions in this manual can result in equipment
malfunction, property damage, personal injury and/or death.
Installation
• 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. 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.
• 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.
• 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.
!
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.
!
!
!
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.

SAFETY INSTRUCTIONS 5
ENGLISH
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. 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 turning
the product on. Do not use the telephone or turn switches on or off. There is risk of explosion
or fire
• If strange sounds, or 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.
• 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 should 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.
• When the product is not to be used for a long time, disconnect the power supply plug or turn
off the breaker. There is risk of product damage or failure, or unintended operation.
• Take care to ensure that nobody should step on or fall onto the outdoor unit. This could result
in personal injury and product damage.
CAUTION
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.
• 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.
• Use two or more people to lift and transport the product. Avoid personal injury.
• Do not install the product where it will be exposed to sea wind (salt spray) directly. It may
cause corrosion on the product. Corrosion, particularly on the condenser and evaporator fins,
could cause product malfunction or inefficient operation.
!

• 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.
• 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.
• 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 in
operation. 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.
• Replace all the batteries in the remote control with new ones of the same type. Do not mix
old and new batteries or different types of batteries. There is risk of fire or explosion
• Do not recharge or disassemble the batteries. Do not dispose of batteries in the fire. They
may burn or explode.
• If the liquid from the batteries gets onto your skin or clothes, wash it well with clean water.
Do not use the remote if the batteries have leaked. The chemicals in batteries could cause
burns or other health hazards.
• If you eat the liquid from the batteries, brush your teeth and see doctor. Do not use the
remote if the batteries have leaked. The chemicals in batteries could cause burns or other
health hazards.
• 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.
• The user must carry out checks and cleaning of routine to avoid defective performance. In a
special situation, only service personnel can carry out repair work.
6SAFETY INSTRUCTIONS
ENGLISH

BEFORE USE 7
ENGLISH
Preparing for operation
• Contact an installation specialist for installation.
• Use a dedicated circuit.
Usage
• 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 period of time.
• Due to the possibility of oxygen deficiency, ventilate the room when used together with stoves
or other heating devices.
• 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.
Cleaning and maintenance
• Do not touch the metal parts of the unit when removing the filter. Injuries can occur when
handling sharp metal edges.
• Do not use water to clean inside the air conditioner. Exposure to water can destroy the
insulation, leading to possible electric shock.
• 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.
Service
For repair and maintenance, contact your authorized service dealer.
BEFORE USE

8PRODUCT INTRODUCTION
ENGLISH
Name of parts
<PT3>
Indoor unit
1Left/Right Airflow Control Louver
2Up/Down Airflow Control Louver
3Display Panel
4Air filter
5Air Inlet
6Control Box
1
4
2
3
6
5
PRODUCT INTRODUCTION
<PF2>
Indoor unit
1. Left / Right Airflow Control Louver
2. Up / Down Airflow Control Louver
3. Air Outlet
4. Display / Control Panel
5. Filter
6. Air Inlet
4
2
5
6
3
1

PRODUCT INTRODUCTION 9
ENGLISH
MODE
356
78910
2
4
11
1
Indoor unit controls and indicators
1. Timer lamp
2. Defrosting operation lamp
3. Cooling operation lamp
4. Heating operation lamp
5. Room temp. / Set temp. display
6. Indoor fan speed lamp
7. Start/Stop button
8. Operation mode selection button
9. Room temperature setting button
10. Indoor fan speed button
11. Signal receptor
4
193
210 5678
11 12 13 15 16
14 17
1. Fan mode operation lamp
2. Cooling operation lamp
3. Dehumidification operation lamp
4. Auto operation lamp
5. Power cooling operation lamp
6. Outdoor unit operation / Timer / Child lock
lamp
7. Room temp. / Set temp. display (ON/OFF
timer display)
8. Indoor fan speed lamp
9. Heating operation lamp
10. Power heating operation lamp
11. Start/Stop button
12. Operation mode selection button
13. Power cooling mode button
14. Room temperature setting button
15. Indoor fan speed button
16. ON/OFF timer button
17. Signal receptor
NOTE
Some lamp cannot display by model’s function.
<PT3>
<PF2>

10 OPERATING INSTRUCTIONS
ENGLISH
This function is able to turn off unit after a
setting time.
1When the unit is turned on, adjust desired
setting time with button.
- Available only when the product is on.
- Up to the maximum of 7 hours can be
selected.
- After setting the reservation, press
button to display the remaining
reservation time. Press once more to
cancel the reservation mode.
- Please set the appropriate time when
sleep.
Turning OFF reservation mode
Child Lock Operation Function
1Press the and simultaneously for
3 seconds. Or press the Xbutton on
remote control.
2During child lock operation,
- Whenever you press any button on
display panel, it will immediately display
"CL", which means display panel is locked.
- All the button on the indoor unit display
panel will not work.
- But the button on the remote controller
will be operated.
3Press the and simultaneously for
3 seconds again. The unit will respond
with beep. child lock operation will removed.
<PT3>
MODE
Simple Reservation
This function is able to turn on unit after a
setting time.
1When the unit is turned off, adjust desired
setting time with button.
- Available only when the product is off.
- Up to the maximum of 24 hours can be
selected.
- After setting the reservation, press
button to display the remaining
reservation time. Press once more to
cancel the reservation mode.
- Multi V indoor unit can select up to 7
hours of reservation mode, when
connecting a wired remote controller.
Turning ON reservation mode
Fan Speed Setting
1Press |button to turn on the indoor.
2Press button to select fan speed.
- You can select the fan speed in three
steps Low, Mid, High, Power.
Each time the button is pressed, the fan
speed mode is shifted.
- Air flow rate can be selected during the
cooling, heating and blowing(fan mode).
OPERATING INSTRUCTIONS
NOTE
After performing the setting, if corresponded
setting button is pressed once, remaining
setting time will be displayed, and if it is
pressed once again, corresponded setting
function will be cancelled.
(same function as ) Remaining setting time
will be displayed with the unit of 1 hour.