LG | USUW186K3A1 | LG USNW126J3A1 Owner’s Manual

ENGLISH
FRANÇAIS
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
MFL69883701
Rev.00_111016
www.lg.com
TABLE OF CONTENTS
This manual is produced for a group of products
and 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.............................................................. 9
Notes for Operation.................................................................................. 9
Parts and Functions................................................................................. 9
Wireless Remote Control....................................................................... 10
Restarting the Air Conditioner Automatically.......................................... 15
Using the Mode Function....................................................................... 15
Using the Jet Mode Function.................................................................. 17
Using the Fan Speed Function............................................................... 18
Using the Air Flow Direction Function.................................................... 18
Setting the On/Off Timer......................................................................... 19
Using the Sleep Function(Optional)....................................................... 20
Using the Simple Timer Function(Optional)............................................ 20
Using the Energy Display Function(Optional)........................................ 21
Using the Light Off Function(Optional)................................................... 21
Using the Comfort Air Function(Optional)............................................... 22
Using the Energy Saving Function(Optional)......................................... 22
Using the Energy Control Function(Optional)......................................... 23
Using Special Functions......................................................................... 24
Smart Appliance Connectivity................................................................. 27
MAINTENANCE....................................................... 29
Clean the Air Filter.................................................................................. 31
Clean the 3M and Triple Filter(Optional)................................................ 32
TROUBLESHOOTING............................................ 33
ENGLISH
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 the 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.
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.
3
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:
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.
4
ENGLISH
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 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.
5
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.
••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 adapter ground terminal to the wall receptacle cover screw does
not ground the appliance unless the cover screw is metal, uninsulated, and the
wall receptacle is grounded through house wiring.
••If you have any doubt whether the air conditioner is properly grounded, have the
wall receptacle 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.
6
ENGLISH
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.
••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.
7
••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, wash off 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.
8
ENGLISH
OPERATION
Notes for Operation
Suggestion for Energy Saving
•• 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 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
weaken the cooling / dehumidifying functions.
Parts and Functions
Indoor Unit
Outdoor Unit
1
Air Filter
1
Air Intake Vents
2
Air Intake
2
Air Outlet Vents
3
Front Cover
4
On/Off Button
5
Air Deflector (Vertical louver)
6
Air Deflector (Horizontal vane)
7
Air Outlet
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.
9
Wireless Remote Control
Inserting Batteries
Operating method
Point the remote control towards the signal receiver
at the right side of the air conditioner to operate it.
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.
1
Remove the battery cover.
NOTE
2
Insert the new batteries and make sure that the
+ and - terminals of the batteries are installed
correctly.
•• The remote control may operate other electronic
devices if it is directed towards them. Make sure to
point the remote control towards the air conditioner
signal receiver.
•• For proper operation, use a soft cloth to clean the
signal transmitter and receiver.
Installing the Remote Control Holder
To protect the remote control, install the holder where
there is no direct sunlight.
1
2
10
Choose a safe and easily accessible location.
Fix the holder by fastening 2 screws firmly with a
screwdriver.
•• In case of a function not provided in the product,
no buzzer sound occurs from the product when a
button for such function on the remote control is
pressed except for Air Flow Direction(
), Energy
Display( ), Air Purification function( ).
kW [3 s]
Setting the Current Time
Insert batteries.
•• The icon below blinks at the bottom of the
display screen.
You can use the ON/OFF button of the indoor unit to
operate the air conditioner when the remote control is
unavailable.
2
Press
3
Press SET/CANCEL button to finish.
or
button to select the minutes.
1
Open the front cover (Type1) or horizontal
vane(Type2).
2
Press the ON/OFF button.
Type1
NOTE
•• The On/Off Timer is available after setting the
current time.
Using the °C/°F Conversion
Function(Optional)
ON/OFF
Type2
This function changes unit between °C and °F.
•• Press and hold
SWING
℃↔℉ [5 s]
button about 5 seconds.
ON/OFF
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-only models, the temperature is set to
22 °C.
•• For cooling & heating models, the temperature is
set from 22 °C to 24 °C.
11
ENGLISH
1
Operating the Air Conditioner
Without the Remote Control
Using Wireless Remote Control
You can operate the air conditioner more conveniently with the remote control.
Button
Display
Screen
-
2
Description
To turn on/off the air conditioner.
To adjust the desired room
temperature in cooling, heating or
auto changeover mode.
*
*
To select the cooling mode.
To select the heating mode.
*
MODE
1
To select the dehumidification mode.
To select the fan mode.
To select the auto changeover/auto
operation mode.
RESET
JET
MODE
To change room temperature quickly.
FAN
SPEED
To adjust the fan speed.
To adjust the air flow direction
vertically or horizontally.
NOTE
•• * buttons may be changed according to the type of model.
12
2
*
*LIGHT
OFF
*
1
RESET
Description
To turn on/off air conditioner
automatically at desired time.
{ptly
SET/
CANCEL
*
Display
Screen
-
To set/cancel the special functions
and timer.
-
To cancel the timer settings.
-
To adjust time.
-
To set the brightness of the display
on the indoor unit.
ROOM
TEMP
To display the room temperature.
°C↔°F[5 s]
To change unit between °C and °F.
*ENERGY
SAVING
To minimize power consumption.
*COMFORT
AIR
kW[3 s]
To adjust the air flow to deflect wind.
-
To set whether or not to display
information regarding energy.
*ENERGY
CTRL
To bring the effect of the power
saving.
*COMFORT
SLEEP
To make the comfortable sleep
environment.
DIAGNOSIS
[5 s]
ENGLISH
Button
-
To conveniently check maintenance
information of a product.
13
Button
Display
Screen
Description
To purify the air by removing particles
that enters the indoor unit.
2
To reduce noise from outdoor units.
*
To keep your skin moisturized by
generating ion clusters.
*
To lower indoor humidity quickly.
To maintain a minimum room
temperature and prevent objects in
the room from freezing.
m|ujU
*
To fan away a mosquito.
1
To remove moisture generated inside
the indoor unit.
To make the comfortable sleep
environment.
RESET
RESET
-
To Initialize the remote control
settings.
NOTE
•• Some functions may not be supported, depending on the model.
•• * buttons may be changed according to the type of model.
14
When the air conditioner is turned on again after
a power failure, this function restores the previous
settings.
Using the Mode Function
ENGLISH
Restarting the Air Conditioner
Automatically
This function allows you to select the desired
function.
Cooling Only Model
Cooling Mode
Disabling Auto Restart
1
Open the front cover (Type1) or horizontal
vane(Type2).
Auto Operation(AI) Mode
2
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.
Dehumidification Mode
•• 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.
Fan Mode
Cooling & Heating Model
Type1
Cooling Mode
Auto Changeover Mode
ON/OFF
Dehumidification Mode
Type2
Heating Mode
Fan Mode
ON/OFF
Cooling Mode
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.
1
Turn the appliance on.
2
Press MODE button repeatedly to select the
Cooling Mode.
••
3
is displayed on the display screen.
Press
or
temperature.
button to set the desired
15
Heating Mode
Fan Mode
1
Turn the appliance on.
2
This mode only circulates the indoor air without
changing the room temperature.
Press MODE button repeatedly to select the
Heating Mode.
1
Turn the appliance on.
2
Press MODE button repeatedly to select the Fan
Mode.
••
3
is displayed on the display screen.
Press
or
temperature.
••
button to set the desired
3
is displayed on the display screen.
Press FAN SPEED button to adjust the fan
speed.
Dehumidification Mode
This mode removes excess moisture from a highly
humid environment or during the rainy season,
in order to prevent molding from setting in. This
mode adjusts the room temperature and the fan
speed automatically to maintain the optimal level of
humidity.
Auto Changeover Mode
1
Turn the appliance on.
1
Turn the appliance on.
2
Press MODE button repeatedly to select the
Dehumidification Mode.
2
Press MODE button repeatedly to select the Auto
Changeover Mode.
••
This mode changes the mode automatically to
maintain the set temperature at ±2 °C.
••
is displayed on the display screen.
NOTE
•• In this mode you cannot adjust the room
temperature, it is adjusted automatically.
•• The room temperature is not displayed on the
display screen.
16
Cooling & Heating Model
3
4
is displayed on the display screen.
Press
or
temperature.
button to set the desired
Press FAN SPEED button to adjust the fan
speed.
Auto Operation(Artificial Intelligence)
This mode automatically sets the fan speed and
temperature depending on the room temperature.
Changing Room Temperature
Quickly
1
Turn the appliance on.
2
This function allows you to cool indoor air quickly
during the summer or warm it quickly during winter.
Press MODE button repeatedly to select the Auto
Operation.
•• Cooling & Heating model : The Jet Mode
function is available with Cooling, Heating and
Dehumidification Mode.
••
3
is displayed on the display screen.
Press
or
button to select the desired
operation code if the temperature is higher or
lower than the desired temperature.
ENGLISH
Cooling Only Model
Using the Jet Mode Function
•• Cooling Only model : The Jet Mode function is
available with Cooling, Dehumidification, Fan, Auto
Operation Mode and Air Purification function.
1
Turn the appliance on.
2
Press MODE button repeatedly to select the
desired mode.
3
Press JET MODE button.
••
is displayed on the display screen.
NOTE
•• Jet Heating Mode is not available on some models.
Code
Description
2
Cool
1
Cool slightly
0
Maintain room temperature
-1
Heat slightly
-2
Heat
•• In Jet Cooling Mode, strong air blows out at
temperature of 18 °C for 30 minutes.
•• In Jet Heating Mode, strong air blows out at
temperature of 30 °C for 30 minutes.
•• This function may operate differently from the
remote control display.
NOTE
•• In this mode, you cannot adjust the fan speed, but
you can set the air deflector to rotate automatically.
17
Using the Fan Speed
Function
Using the Air Flow Direction
Function
Adjusting the Fan Speed
This function adjusts the direction of the air flow
vertically (horizontally).
•• Press FAN SPEED button repeatedly to adjust the
fan speed.
Display Screen
Speed
High
Medium - High
Medium
Medium - Low
Low
-
Natural Wind
NOTE
•• The fan speed of natural air adjusts automatically.
→
→
•• The fan speed icons are displayed on some indoor
units.
→
→
→
→
•• Indoor unit display is displayed only 5 seconds and
return to the setting temperature on some models.
18
•• Press
(
) button repeatedly and select the
desired direction.
−− Select
(
) to adjust the direction of the air
flow automatically.
NOTE
•• Adjusting the air flow direction horizontally may not
be supported, depending on the model.
•• Adjusting the air deflector arbitrarily may cause
product failure.
•• If you restart the air conditioner, it starts to operate
with the previously set direction of air flow, so the
air deflector may not match the icon displayed on
the remote control. When this occurs, press
or
button to adjust the direction of the air flow
again.
•• This function may operate differently from the
remote control display.
Setting the On/Off Timer
1
Press
{ptly
2
Press
3
Press SET/CANCEL button to finish.
or
Canceling the On Timer
{ptly
2
Press
3
Press SET/CANCEL button to finish.
button repeatedly.
Press SET/CANCEL button to cancel the setting.
button to select the minutes.
NOTE
•• This function is disabled when you set Simple
Timer.
Canceling the Off Timer
1
Press
{ptly
button repeatedly.
•• The icon below blinks at the bottom of the
display screen.
•• The icon below blinks at the bottom of the
display screen.
2
or
icon
•• After setting the timer, current time and
are displayed on the display screen indicating
that the desired time is set.
button to select the minutes.
icon
•• After setting the timer, current time and
are displayed on the display screen indicating
that the desired time is set.
Press
button repeatedly.
button repeatedly.
•• The icon below blinks at the bottom of the
display screen.
1
{ptly
•• The icon below blinks at the bottom of the
display screen.
Setting the On Timer
1
Press
ENGLISH
This function sets the air conditioner to turn on/off
automatically at desired time.
Setting the Off Timer
2
Press SET/CANCEL button to cancel the setting.
Canceling the Timer Setting
•• Press
button to cancel all timer settings.
19
Using the Sleep
Function(Optional)
Using the Simple Timer
Function(Optional)
This function turns off the air conditioner
automatically when you go to sleep.
This function turns off the air conditioner
automatically when you go to sleep.
1
Turn the appliance on.
1
Turn the appliance on.
2
Press
2
Press
{ptly
button repeatedly.
•• The icon below blinks at the bottom of the
display screen.
3
4
Press
or
to 7 hours).
button to select the hour (up
Press SET/CANCEL button to finish.
••
is displayed on the display screen.
{ptly
button repeatedly.
•• The icon below blinks at the bottom of the
display screen.
3
4
Press
or
to 7 hours).
button to select the hour (up
Press SET/CANCEL button to finish.
••
is displayed on the display screen.
NOTE
NOTE
••
•• This function is disabled when you set Off Timer.
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.
20
Using the Light Off
Function(Optional)
This function displays the amount of electricity
generated on the indoor display as the product
operates.
Display Screen Brightness
Display the Current Energy Usage
•• Press LIGHT OFF button.
1
Turn the appliance on.
2
Press
kW [3 s]
ENGLISH
Using the Energy Display
Function(Optional)
You can set the brightness of the indoor unit display
screen.
button and hold it about 3 seconds.
or
•• The instantaneous power consumption(
kW
kWh) is displayed for a while on some indoor
units.
Display the Cumulative Energy
Usage(Optional)
1
2
Turn the appliance on.
Press
twice.
kW [3 s]
button and hold it about 3 seconds
kW
•• The cumulative power consumption(
kWh) is
displayed for a while on some indoor units.
NOTE
•• It is not displayed on the wireless remote control.
•• kW refers to instantaneous power consumption.
•• kWh refers to cumulative power consumption.
•• If it is more than 99 kWh, which is the range of
expression, maintain it as 99 kWh.
•• Power off resets its value.
•• Display wattage under 10 kW with 0.1 kW(h) unit,
and display one over 10 kW with 1 kW(h) unit.
•• The actual power may differ from the power
displayed.
21
Using the Comfort Air
Function(Optional)
Using the Energy Saving
Function(Optional)
Comfort Vane Operation
This function minimizes power consumption during
Cooling and increases the set temperature to the
optimal level for a more comfortable environment.
The temperature automatically settles at 22 °C,
if room ambient temperature is below 22 °C. The
temperature remains constant if it is above 22 °C.
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.
1
Turn the appliance on.
2
Press COMFORT AIR button repeatedly and
select the desired direction.
or
••
is displayed on the display screen.
NOTE
••
or
is displayed on some indoor units.
•• This function is disabled when you press MODE or
JET MODE button.
•• This function is disabled and auto swing of vertical
direction is set up when you press
button.
SWING
℃↔℉ [5 s]
•• When this function is off, the horizontal vane
operates automatically depending on the set mode.
22
1
Turn the appliance on.
2
Press MODE button repeatedly to select the
Cooling Mode.
3
Press ENERGY SAVING button.
••
is displayed on the display screen.
1
Turn the appliance on.
2
Press ENERGY CTRL button.
ENGLISH
Using the Energy Control
Function(Optional)
•• Press ENERGY CTRL button repeatedly to
select each step.
NOTE
•• 1 step : The power Input is decreased by 20%
compared to rated power input.
−−
is displayed on the display screen.
•• 2 step : The power Input is decreased by 40%
compared to rated power input.
−−
is displayed on the display screen.
•• 3 step(Optional) : The power Input is decreased by
60% compared to rated power input.
−−
is displayed on the display screen.
•• (1 step),
units.
(2 step) is displayed on some indoor
•• This function is available with Cooling Mode.
•• Capacity may decrease when Energy Control mode
is selected.
•• Desired temperature is displayed about 5 seconds
if you press FAN SPEED,
or
button.
•• Room temperature is displayed about 5 seconds if
you press ROOM TEMP button.
23
Using Special Functions
1
Turn the appliance on.
2
Press FUNC button repeatedly to select the
desired function.
3
Press SET/CANCEL button to finish.
Display
Screen
Description
To purify the air by removing
particles that enters the indoor unit.
To reduce noise from outdoor units.
To keep your skin moisturized by
generating ion clusters.
To lower indoor humidity quickly.
To maintain a minimum room
temperature and prevent objects in
the room from freezing.
To fan away a mosquito.
To remove moisture generated
inside the indoor unit.
To make the comfortable sleep
environment.
NOTE
•• Some functions may not be supported, depending
on the model.
•• Some functions may operate differently from the
remote control display.
24
Using the Silent Function
1
Press FUNC button repeatedly to select the
desired function.
This function prevents potential claims by neighbors,
reducing noise from outdoor units.
2
Press SET/CANCEL button to cancel the
function.
is displayed on the display screen.
••
NOTE
•• This function is disabled when you press MODE or
ENERGY CTRL or JET MODE button.
Using the Air Purification Function
These functions supply clean and fresh air by ion
particles and filter.
Function
Display
Description
Ionizer
Ion particles from
Ionizer sterilize
the aerial bacteria
and other harmful
substances.
Plasma
It removes
microscopic
contaminants
from the intake air
completely to supply
clean and fresh air.
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.
•• This function is available with Cooling, Heating,
Auto Changeover, Auto Operation Mode.
Using the Ion Care Function
This function keeps your skin moisturized by
generating ion clusters which is absorbed into the
surface of skin.
••
is displayed on the display screen about 3
seconds.
NOTE
•• This function is available with Cooling, Fan Mode
and Air Purification function.
Using the Jet Dry Function
This function maximizes the performance of
dehumidification.
••
,
are displayed on the display screen.
NOTE
•• This function is available with Cooling,
Dehumidification, Auto Operation, Fan Mode and
Air Purification function.
•• This function is not available with Sleep function.
•• This function is disabled when you press MODE
button.
25
ENGLISH
Canceling Special Functions
Using the Low Heating Function
This function operates the heating system to maintain
a minimum room temperature and prevent objects in
the room from freezing where there is no permanent
resident, such as a vacation.
••
,
are displayed on the display screen.
NOTE
•• This function is available with Heating Mode.
•• During LH operation, when you press buttons such
as
,
, MODE, FAN SPEED, and then return
to Heating Mode, 30°C, high speed.
•• If JET MODE button is pressed during LH
operation, this function is disabled and Power
Heating Mode is operated immediately. (only for
power heating model)
•• In case an error occurred, operation can be
interrupted for the protection of the product.
•• COMFORT AIR and
button cannot be used
while the LH function is in operation.
Using the Mosquito Away
Function(Optional)
This function fans away mosquitos by generating a
high-frequency wave.
••
is displayed on the display screen.
NOTE
•• You can use this function without turning the air
conditioner on.
Using the Auto Clean Function
In the Cooling and Dehumidification Mode, moisture
is generated inside the indoor unit. This function
removes such moisture.
••
is displayed on the display screen.
NOTE
•• Some buttons cannot be used while the Auto Clean
function is in operation.
•• If you turn off the power, the fan operates for 30
minutes and cleans the inside of the indoor unit.
26
Using the Comfort Sleep Function
••
,
are displayed on the display screen.
NOTE
•• This function is available with Cooling Mode.
•• The vane stops swing and sets indirect airflow
angle, after 30 minutes from start even though
the room temperature doesn’t decrease to optimal
temperature to sleep.
•• It is possible that a comfortable sleep environment
is different according to the people.
ENGLISH
This function operates the air conditioner
automatically to make the comfortable sleep
environment.
Smart Appliance Connectivity
Using the Wi-Fi Pairing
Function(Optional)
Once it is connected to the internet through a home
Wi-Fi network, you can control the appliance remotely
with the application for the smart phone.
and JET MODE button
•• Press and hold the
simultaneously about 3 seconds.
kW [3 s]
NOTE
•• It is not displayed on the wireless remote control.
•• For more information, read manual in Wi-Fi
module.
27
Using the Smart Diagnosis
Function(Optional)
Smart Diagnosis allows users to conveniently check
maintenance information of a product.
•• Easily checking operational status of the air
conditioner.
•• Easily understanding the error messages.
•• Helping to improve device performance and
expand product life.
1
Search and download LG A/C Smart Diagnosis
in Google play or App store.
2
Click the Receive button on the main screen on
your phone.
3
Press and hold the ROOM TEMP button about 5
seconds aim at the indoor unit.
4
Hold your phone close to the indoor unit.
•• Buzzer beeps will be received by your phone.
5
Confirm the received information on your phone.
NOTE
•• Be sure to keep ambient noise to a minimum or the
phone may not correctly receive the buzzer beeps
from the indoor unit.
28
ENGLISH
MAINTENANCE
WARNING
•• Turn off the power and unplug the power cord before you perform any maintenance; otherwise it may cause
electric shock.
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.
Air Filter
•• The feature may be changed according to the type of model.
29
Type
Description
Clean with a vacuum or hand wash.
Interval
2 weeks
Triple filter(Optional)
Clean with a vaccum or brush.
Every 3 months
3M filter(Optional)
Clean with a vaccum or brush.
Every 6 months
Ionizer(Optional)
Use dry cotton bud to remove any dust
Every 6 months
Clean the Indoor unit surface by using a soft, dry cloth.
Indoor unit
Outdoor unit
Regularly
Have a professional clean the condensate drain pan.
Once a year
Have a professional clean the condensate drain pipe.
Every 4 months
Replace the remote control batteries.
Once a year
Have a professional clean the heat exchanger coils and the panel
vents.(Consult with technician).
Once a year
Have a professional clean the fan.
Once a year
Have a professional clean the condensate drain pan.
Once a year
tightened.
Clean the electric components with air.
Once a year
Once a year
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.
•• Do not wash the 3M filter with water, because the filter can be damaged (Optional).
•• Do not wash the Triple filter with water, because the filter can be damaged (Optional).
30
Clean the Air Filter
NOTE
•• The air filter can be broken when it is bended.
If you look at the indoor unit from above it, can
assemble the top filter easily.
1
Turn off the power and unplug the power cord.
2
Hold the knob of air filter, lift it up slightly.
3
Remove it from the indoor unit.
4
Clean the filter with a vacuum cleaner or with
lukewarm water with neutral detergent.
5
Dry the filter in the shade.
6
Insert the hooks of the air filter into the front
cover.
7
Push down hooks to assemble the air filter.
8
Check the side of the front cover for correct
assembly of the air filter.
ENGLISH
Clean the air filters once every 2 weeks, or more, if
necessary.
Type2
•• When the air filter is not assembled correctly, dust
and other substance come into the indoor unit.
Type1
1
Turn off the power and unplug the power cord.
2
Open the front cover.
3
Hold the knobs of the air filters, pull them down
slightly and remove them from the indoor unit.
•• Lift up both sides of the cover slightly.
4
Clean the filters with a vacuum cleaner or with
lukewarm water with neutral detergent.
5
Dry the filters in the shade.
6
Insert the hooks of the air filters into the front
cover.
7
Check the side of the front cover for correct
assembly of the air filters.
31
Clean the 3M and Triple
Filter(Optional)
1
Turn off the power and unplug the power cord.
2
Remove the air filters from the indoor unit.
3
Remove the 3M and Triple filters from the indoor
unit.
5
Insert the 3M and Triple filters.
Type1
Type1
Type2
Type2
4
32
Clean the filters with a vacuum cleaner.
6
Assemble the air filters.
7
Check the side of the front cover for correct
assembly of the air filters.
NOTE
•• The feature and location of 3M and Triple filter may
vary according to the type of model.
ENGLISH
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.
Problem
Possible Causes
Corrective Action
Burning smell and strange sounds
are coming from the unit.
Water leaks from the indoor unit even
when the humidity level is low.
The air conditioner
does not work
normally.
The power cable is damaged or it is
generating excessive heat.
A switch, a circuit breaker (safety,
ground), or a fuse is not operated
properly.
•• Turn off the air conditioner, unplug the
power cable or disconnect the power
supply, and contact the service center.
The unit generates an error code from
its self-diagnosis.
The air conditioner
does not work.
The air conditioner is unplugged.
•• Check whether the power cord is plugged
into the outlet or the power isolators are
switched on.
A fuse exploded, or the power supply
is blocked.
•• Replace the fuse or check if the circuit
breaker has tripped.
A power failure has occurred.
•• Turn off the air conditioner when a power
failure occurs.
•• When the power is restored, wait 3 minutes,
and then turn on the air conditioner.
The voltage is too high or too low.
•• Check if the circuit breaker has tripped.
The air conditioner was turned off
automatically at a preset time.
•• Turn the air conditioner on.
The battery setting in the remote
controller is incorrect.
•• Make sure that the batteries are inserted
correctly in your remote controller.
•• If the batteries are placed correctly, but
the air conditioner still does not operate,
replace the batteries and try again.
33
Problem
Possible Causes
Corrective Action
Air is not circulating properly.
•• Make sure that there are no curtains, blinds, or
pieces of furniture blocking the front of the air
conditioner.
The air filter is dirty.
•• Clean the air filter once every 2 weeks.
•• See “Cleaning Air Filter” for more information.
The room temperature is too
high.
•• In summer, cooling the indoor air fully may take
some time. In this case, select the Jet Mode to
cool the indoor air quickly.
Cold air is escaping from the
room.
•• Make sure that no cold air is escaping through
the ventilation points in the room.
The desired temperature is
higher than the set temperature.
•• Set the desired temperature to a level lower
than the current temperature.
There is a heating source
nearby.
•• Avoid using heat generators like electric ovens
or gas burners while the air conditioner is in
operation.
Fan Mode is selected.
•• During Fan Mode, air blows from the air
conditioner without cooling or heating the
indoor air.
•• Switch the operation mode to cooling operation.
Outside temperature is too high.
•• The cooling effect may not be sufficient.
The fan speed
cannot be adjusted.
The Jet Mode, or Auto Operation
Mode is selected.
•• In some operation modes, you cannot adjust
the fan speed. Select an operation mode in
which you can adjust the fan speed.
The temperature
cannot be adjusted.
The Fan Mode or Jet Mode is
selected.
•• In some operation modes, you cannot adjust
the temperature. Select an operation mode in
which you can adjust the temperature.
The air conditioner is suddenly
turned off.
•• The Timer Function may have timed out, which
turns the unit off. Check the timer settings.
A power failure has occurred
during operation.
•• Wait for the power to come back. If you have
the Auto Restart function enabled, your unit will
resume its last operation several minutes after
power is restored.
The Auto Clean function is being
operated.
•• Allow the Auto Clean function to continue since
it removes any remaining moisture inside the
indoor unit. If you do not want this feature, you
can turn the unit off.
The air conditioner
does not emit cool
air.
The air conditioner
stops during
operation.
The indoor unit is
still operating even
when power has
been turned off.
34
Problem
Possible Causes
Corrective Action
ENGLISH
The air outlet on
the indoor unit is
discharging mist.
The cooled air from the air conditioner •• When the room temperature decreases,
makes mist.
this phenomenon will disappear
Water leaks from
the outdoor unit.
In the heating operations, condensed
water drops from the heat exchanger.
There is noise or
vibration.
A clicking sound can be heard
when the unit starts or stops due to
movement of the reversing valve.
Creaking sound: The plastic parts of
the indoor unit creak when they shrink •• These are normal symptoms. The noise will
stop.
or expand due to sudden temperature
changes.
Flowing or Blowing sound: This is
the flow of refrigerant through the air
conditioner.
The indoor unit
gives off an odor.
Odors (such as cigarette smoke) may
be absorbed into the indoor unit and
discharged with airflow.
•• If the smell does not disappear, you need
to wash the filter. If this does not work,
contact the service center to clean your
heat exchanger.
When Heating Mode starts, the vane
is almost closed, and no air comes
out, even though the outdoor unit is
operating.
•• This symptom is normal. Please wait until
the unit has generated enough warm air to
blow through the indoor unit.
The outdoor unit is in Defrosting
Mode.
•• In Heating Mode, ice/frost is built up on the
coils when the outside temperature falls.
This function removes a layer of frost on the
coil, and it should finish in approximately 15
minutes.
Outside temperature is too low.
•• The heating effect may not be sufficient.
The air conditioner
does not emit warm
air.
•• This symptom requires installing a drain
hose under the base pan. Contact the
installer.
NOTE
•• Some functions may not be supported, depending on the model.
35
Memo
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