LG US30F User manual

www.lg.com
OWNER'S MANUAL
AIR
CONDITIONER
Read this owner's manual thoroughly before operating the appliance and keep
it handy for reference at all times.
TYPE: WALL MOUNTED
Original instruction
EN English IT Italiano ES Español FR Français DE Deutsch
EL Ελληνικά PT Português NL Nederlands PL Polski HU Magyar
BG Български HR Hrvatski CZ Čeština ET Eesti MT Malti
RO Română SK Slovenčina SL Slovenščina LV Latviešu LT Lietuvių
GA Gaeilge SR srpski MK Македонски SQ Shqip BS Bosanski
Copyright © 2018 - 2019 LG Electronics Inc. All Rights Reserved.
MFL67870337
Rev.01_031419

TABLE OF CONTENTS This manual may contain images or
content different from the model you
purchased.
This manual is subject to revision by the
manufacturer.
SAFETY INSTRUCTIONS ................................................... 3
IMPORTANT SAFETY INSTRUCTIONS................................................4
OPERATION ....................................................................... 11
Notes for Operation .............................................................................. 11
Parts and Functions.............................................................................. 11
Wireless Remote Control......................................................................12
Restarting the Air Conditioner Automatically ........................................16
Using the Mode Function......................................................................16
Using the Jet Mode Function................................................................18
Using the Fan Speed Function.............................................................19
Using the Air Flow Direction Function...................................................19
Setting the On/Off Timer.......................................................................20
Using the Sleep Function (Optional).....................................................21
Using the Simple Timer Function (Optional).........................................21
Using the Energy Display Function (Optional)......................................22
Using the Light Off Function (Optional) ................................................22
Using the Comfort Air Function (Optional)............................................22
Using the Energy Saving Function (Optional) ......................................23
Using the Energy Control Function (Optional)......................................23
Using Special Functions.......................................................................24
SMART FUNCTIONS......................................................... 26
Using LG SmartThinQ Application........................................................26
MAINTENANCE.................................................................. 29
Clean the Air Filter................................................................................31
TROUBLESHOOTING ....................................................... 32

3
SAFETY INSTRUCTIONS EN
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.
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.
This symbol indicates that information is available such
as the Operating Manual or Installation Manual.

4
EN
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.

5
EN
•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.
•Means for disconnection must be incorporated in the fixed wiring
in accordance with the wiring rules.
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.

6
EN
•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.

7
EN
•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.
•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 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.

8
EN
•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 or its service agents 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.
•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).
•The appliance shall be stored so as to prevent mechanical
damage from occurring.

9
EN
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 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.

10
EN
•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.