OWNER’S MANUAL
AIR CONDITIONER
Please read this manual carefully before operating
your set and retain it for future reference.
P/NO : 3828A20928B
www.lg.com
TYPE : WALL MOUNTED
http://www.lghvac.com
ENGLISH FRANÇAIS
ESPAÑOL
2 Room Air Conditioner
Room Air Conditioner Ownerʼs Manual
TABLE OF CONTENTS
FOR YOUR RECORDS
Write the model and serial numbers here:
Model #
Serial #
You can find them on a label on the side of each unit.
Dealer's Name
Date Purchased
n Staple your receipt to this page in the event you need
it to prove date of purchase or for warranty issues.
READ THIS MANUAL
Inside you will find many helpful hints on how to use
and maintain your air conditioner properly. Just a little
preventive care on your part can save you a great deal
of time and money over the life of your air conditioner.
You'll find many answers to common problems in the
chart of troubleshooting tips. If you review our chart of
Troubleshooting Tips first, you may not need to call
for service at all.
PRECAUTION
• Contact the authorized service technician for
repair or maintenance of this unit.
• Contact the installer for installation of this unit.
• The air conditioner is not intended for use by
young children or invalids without supervision.
• Young children should be supervised to ensure
that they do not play with the air conditioner.
• 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.
Safety Precautions.........................3
Prior to Operation ..........................9
Introduction ..................................10
Electrical Safety ...........................11
Operating Instructions.................12
Maintenance and Service ............26
Owner's Manual 3
Safety Precautions
ENGLISH
Safety Precautions
To prevent the injury of the user or other people and property damage, the following instructions must be
followed.
n Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classified
by the following indications.
This symbol indicates the possibility of death or serious injury.
This symbol indicates the possibility of injury or damage to properties only.
n The meanings of the symbols used in this manual are as shown below.
Be sure not to do.
Be sure to follow the instruction.
n Installation
Do not use damaged power
cords, plugs, or a loose
socket.
• There is risk of fire or electric
shock.
For electrical work, contact
the dealer, seller, a qualified
electrician, or an Authorized
Service Center.
• There is risk of fire or electric
shock.
Always use the power plug
and socket with the ground
terminal.
• There is risk of electric shock.
Install the panel and the
cover of control box
securely.
• There is risk of fire or electric
shock.
Do not modify or extend the
power cord.
• 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.
4 Room Air Conditioner
Safety Precautions
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 furnishings.
Take care to ensure that
power cords could not be
pulled out or damaged
during operation.
• There is risk of fire or electrical
shock.
Do not place anything on
the power cord.
• There is risk of fire or electric
shock.
Do not turn the air-
conditioner ON or OFF by
plugging or unplugging the
power plug.
• There is risk of fire or electrical
shock.
n Operation
Owner's Manual 5
Safety Precautions
ENGLISH
Use a dedicated outlet for
this appliance.
• There is risk of fire or electrical
shock.
Grasp the plug to remove
the cord from the outlet. Do
not touch it 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.
• It may cause There is risk of
fire, failure of the product, or
electric shock.
Do not store or use
flammable gas or
combustibles near the air
conditioner.
• 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 turn the product on.
DO NOT use the telephone
or turn switches on or off.
• There is risk of explosion or fire.
Unplug the unit if strange
sounds, odors, or smoke
comes from it.
• There is risk of electrical shock
or fire
Stop operation and close
the window in storm or
hurricane. If possible,
remove the air conditioner
from the window before the
hurricane arrives.
• There is risk of property
damage, failure of product, or
electric shock.
Wax
Thinner
6 Room Air Conditioner
Safety Precautions
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.
n Installation
90˚
Unplug the appliance before
performing cleaning or
maintenance.
• There is risk of electrical shock.
When the product is not 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 could step on or fall
onto the outdoor unit.
• This could result in personal
injury and product damage.
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 eletric
shock.
Ventilate the product from
time to time when operating
it together with a stove, etc.
• There is risk of fire or electrical
shock.
For inner cleaning, contact an Authorized Service Center or a dealer.
Do not use harsh detergent that causes corrosion or damage on the unit.
• Harsh detergent may also cause failure of product, fire, or electronic shock.
Owner's Manual 7
Safety Precautions
ENGLISH
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 air
conditioner.
• 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.
Do not direct airflow at
room occupants. (Don't sit
in the draft.)
• This could damage 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
anyting on the product.
(outdoor units)
• There is risk of personal injury
and failure of product.
n Operation
8 Room Air Conditioner
Safety Precautions
Do not recharge or
disassemble the batteries.
Do not dispose of batteries
in a 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.
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 air
conditioner is plugged in.
• There are sharp and moving
parts that could cause personal
injury.
Do not drink the water
drained from the unit.
• It is not sanitary and could
cause serious health issues.
n Disuse
Use a firm stool or ladder when cleaning or
maintaining the air conditioner.
• Be careful and avoid personal injury.
Replace the all 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
Owner's Manual 9
ENGLISH
Prior to Operation
Prior to Operation
1. Contact an installation specialist for installation.
2. Plug in the power plug properly.
3. Use a dedicated circuit.
4. Do not use an extension cord.
5. Do not start/stop operation by plugging/unplugging the power cord.
6. If the cord/plug is damaged, replace it with only an authorized replacement part.
1. Being exposed to direct airflow for a long time may be hazardous to your health. Do not expose
occupants, pets, or plants to direct airflow for a long time.
2. Due to the possibility of oxygen deficiency, ventilate the room when using the appliance together with
stoves or other heating devices.
3. Do not use this air conditioner for non-specified special purpose (e.g. preserving precision devices,
food, pets, plants, or art objects). Such use may damage your properties.
1. Do not touch the metal parts of the unit when removing the filter. Injury can occur.
2. Do not use water to clean inside the air conditioner. Exposure to water can destroy the insulation,
leading to electric shock.
3. 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 unitʼs power is triggered while
cleaning inner parts of the unit.
For repair and maintenance, contact your authorized service dealer.
Preparing for Operation
Usage
Cleaning and Maintenance
Service
10 Room Air Conditioner
Introduction
Introduction
This symbol alerts you to the risk of electric shock.
This symbol alerts you to hazards that may cause harm to the
air conditioner.
This symbol indicates special notes.
NOTICE
Features
Symbols used in this Manual
Signal Receptor
Front Panel
Air Discharge
�
Power Cord
Air Filter
Plasma Filter
(Side)
(Rear)
Air outlet �
vents
Air intake �
vents
Piping
Indoor
Outdoor
WARNING: This appliance should be installed in accordance with national wiring
regulations. This guide acts as a guide to help to explain product features.
Owner's Manual 11
ENGLISH
Electrical Safety
Electrical Safety
• This appliance must be properly grounded.
To minimize the risk of electric shock, you must alway plug into a grounded oulet
• 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 and not insulated,
and the wall receptacle is grounded through the 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.
12 Room Air Conditioner
On/Off : Lights up during the system operation, error code and auto restart setting. �
�
* Hot start operation: Stops the indoor fan in heating operation for minutes to prevent cold air from blowing out
from unit. �
* In defrost mode unit stops heating operation for few minutes to remove formation of ice on the heat �
exchanger coils to maintain the efficiency.
Operating Instructions
Operating Instructions
How to insert the Batteries
Storage and Tips for using the Remote Controller
Operation Indication Lamps
1. Remove the battery cover by pulling it according to the arrow
direction.
2. Insert new batteries making sure that the (+) and (-) of battery are
installed correctly.
3. Reattach the cover by sliding it back into position.
Use 2 AAA(1.5volt) batteries.
Do not use rechargeable batteries.
NOTICE
• The remote controller may be stored by mounting
it on a wall.
• To operate the room air conditioner, aim the
remote controller at the signal receptor.
Signal receptor
Receives the signals from the remote controller.(Signal receiving sound: two short beeps or one long beep.)
Owner's Manual 13
ENGLISH
Operating Instructions
Controls
ON
OFF
CANCEL
SET
°C/°F
AUTO CLEAN
1
3
5
4
9
10
12
18
16
7
2
8
13
15
11
6
Cooling Operation
Auto Operation or Auto Changeover
Healthy Dehumidification Operation
Flip-up door�
(opened)
Heating Operation
Signal transmitter
•
Cooling Model(� ), Heat Pump Model(� )
17
Operation Mode
14
The controls will look like the following.
Remote Control Operations
1. START/STOP BUTTON
Operation starts when this button is pressed
and stops when the button is pressed again.
2. OPERATION MODE SELECTION BUTTON
Used to select the operation mode.
3. ROOM TEMPERATURE SETTING
BUTTONS
Used to select the room temperature.
4. INDOOR FAN SPEED SELECTOR
Used to select fan speed in four steps
low, medium, high and CHAOS.
5.
JET COOL/HEATING(OPTIONAL)
Used to start or stop the speed
cooling/heaing.(speed cooling/heating operates
super high fan speed in cooling/heatig mode.)
6. CHAOS SWING BUTTON
Used to stop or start louver movement and
set the desired up/down airflow direction.
7. ON/OFF TIMER BUTTONS
Used to set the time of starting and stopping
operation. (See page 23)
8. TIME SETTING BUTTONS
Used to adjust the time. (See page 23)
9. TIMER SET/CANCEL BUTTON
Used to set the timer when the desired time
is obtained and to cancel the Timer
operation. (See page 23)
10. SLEEP MODE AUTO BUTTON
Used to set Sleep Mode Auto operation.
(See page 23)
11. AIR CIRCULATION BUTTON
Used to circulate the room air without
cooling or heating. (See page 24)
12. ROOM TEMPERATURE CHECKING
BUTTON
Used to check the room temperature.
13. NEO PLASMA(OPTIONAL)
Used to start or stop the plasma-
purification function. (See page 21)
14. HORIZONTAL AIRFLOW DIRECTION
CONTROL BUTTON (OPTIONAL)
Used to set the desired vertical airflow
direction.
15. RESET BUTTON
Used prior to resetting time.
16. 2nd F Button
Used prior to using modes printed in blue
at the bottom of buttons. (See page 22)
17. AUTO CLEAN (OPTIONAL)
Used to set Auto Clean mode.
18. °C/°F SWITCH BUTTON
Used to switch temperature reading from
Centigrade to Fahrenheit.
14 Room Air Conditioner
ON
Cooling
Healthy�
Dehumidification
Auto
Heating
�
(Heat pump model only)
To lower the temperature
To raise the temperature
Operating Instructions
Press the Start/Stop button.
The unit will respond with
a beep.
Open the door of the remote controller. To select Cooling
Operation, press the Operation Mode Selection button.
Each time the button is pressed, the operation mode is
shifted in the direction of the arrow.
Close the door of the remote controller. Set the temperature
lower than the room temperature. The temperature can be
set within a range of 64°F~86°F(18°C~30°C) at intervals of
2°F(1°C).
Set the fan speed again with the door
of the remote controller still closed.
You can select the fan speed in four
steps-low, medium, high and CHAOS.
Each time the button is pressed, the
fan speed mode is shifted.
1
2
3
4
Natural wind by the CHAOS logic
o For fresher feeling, press the Indoor fan speed selector and set to CHAOS mode. In this mode, the wind
blows like a natural breeze by automatically changing fan speed according to the CHAOS logic.
Cooling operation
Owner's Manual 15
ENGLISH
ON
Cooling
Healthy�
Dehumidification
Auto
Heating
�
(Heat pump model only)
To lower the temperature
To raise the temperature
Operating Instructions
Press the Start/Stop button.
The unit will respond with
a beep.
Open the door of the remote controller. To select Auto
Operation, press the operation mode selection button.
Each time the button is pressed, the operation mode is
shifted in the direction of the arrow.
The temperature and fan speed are automatically set by the
electronic controls based on the actual room temperature. If
you want to change the set temperature, press the Room
Temperature Setting buttons. The cooler or warmer you feel,
the more times (up to two times) you should press the button.
The set temperature will be changed automatically.
During Auto Operation
o You cannot control the indoor fan speed. It has already been set by the Fuzzy rule.
o If the system is not operating as desired, manually switch to another mode. The system will not
automatically switch from the cooling mode to the heating mode, or from heating mode to cooling
mode, it must be done by manually resetting.
o During Auto Operation, pressing the chaos swing button makes the horizontal louvers swing up and
down automatically. If you want to stop auto-swing, press the chaos swing button again.
1
2
3
Auto operation (Optional)
16 Room Air Conditioner
ON
Cooling
Healthy�
Dehumidification
Auto�
changeover
Heating
�
(Heat pump model only)
To lower the temperature
To raise the temperature
Operating Instructions
Auto changeover operation (Optional)
Press the Start/Stop button.
The unit will respond with
a beep.
Open the door of the remote controller. To select Auto Changeover
Operation, press the Operation Mode Selection button.
Each time the button is pressed, the operation mode is shifted in the
direction of the arrow.
1
2
Close the door of the remote controller. Set the temperature
lower than the room temperature. The temperature can be
set within a range of 64°F~86°F(18°C~30°C) at intervals of
2°F(1°C).
Set the fan speed again with the door
of the remote controller still closed.
You can select the fan speed in four
steps-low, medium, high and CHAOS.
Each time the button is pressed, the
fan speed mode is shifted.
3
4
During Auto changeover Operation
The air conditioner changes the operation mode automatically to keep indoor temperature. When room
temperature vary over ±4°F(±2°C) with respect to setting temperature, air conditioner keeps the room
temperature within ±4°F(±2°C) with respect to setting temperature by auto changeover mode.
Owner's Manual 17
ENGLISH
ON
Cooling
Healthy�
Dehumidification
Auto
Heating
�
(Heat pump model only)
Operating Instructions
Press the Start/Stop button.
The unit will respond with
a beep.
Open the door of the remote controller. To select Healthy
Dehumidification Operation, press the Operation Mode
Selection button.
Each time the button is pressed, the operation mode is
shifted in the direction of the arrow.
1
2
Set the fan speed again with the door
of the remote controller still closed.
You can select the fan speed in four
steps-low, medium, high, or CHAOS.
Each time the button is pressed, the
fan speed mode is shifted.
3
Natural wind by the CHAOS logic
o For fresher feeling, press the Indoor Fan Speed Selector and set
to CHAOS mode. In this mode, the wind blows like a natural
breeze by automatically changing fan speed according to the
CHAOS logic.
Healthy dehumidification operation
During Healthy Dehumidification Operation
o If you select the dehumidification mode on the operation selection button, the A/C starts to run the
dehumidification function. It automatically sets the room temp. and airflow volume to the best condition
for dehumidification, based on the sensed current room temp.
In this case, however, the setting temp. is not displayed on the remote controller and you are not able to
control the room temp. either.
o During the healthy dehumidification function, the airflow volume is automatically set according to the
optimization algorithm responding to the current room temp. status, so that the room condition is kept
healthy and comfortable even in the very humid season.
18 Room Air Conditioner
ON
Cooling
Healthy�
Dehumidification
Auto
Heating
�
(Heat pump model only)�
To lower the temperature
To raise the temperature
Operating Instructions
Heating operation (Heat pump model only)
Press the Start/Stop button.
The unit will respond with
a beep.
Open the door of the remote controller. To select Heating
Operation, press the Operation Mode Selection button.
Each time the button is pressed, the operation mode is
shifted in the direction of the arrow.
Close the door of the remote controller.
Set the temperature higher than the room temperature.
The temperature can be set within a range of 60°F~86°F
(16°C~30°C) at intervals of 2°F(1°C).
Set the fan speed again with the door of the
remote controller still closed. You can
select the fan speed in four steps–low,
medium, high and CHAOS. Each time the
button is pressed, the fan speed mode is
shifted.
1
2
3
4
Natural wind by the CHAOS logic
o For fresher feeling, press the Indoor Fan Speed Selector and set to CHAOS mode. In this mode, the
wind blows like a natural breeze by automatically changing fan speed according to the CHAOS logic.
Owner's Manual 19
ENGLISH
or or
Operating Instructions
o During the JET COOL function at any moment, the A/C starts to blow the cool air at extremely
high speed for 30 minutes setting the room temp. automatically to 64°F(18°C).
It is especially used to cool the room temp. quickly in a hot summer.
In heat pump mode, neuro fuzzy mode, or auto changeover mode however, the JET COOL
function is not available.
o In order to return to the normal cooling mode from the JET COOL mode, just press the operation
mode selection button, airflow volume selection, temp. setting button or the JET COOL button
again.
NOTICE
Press the Start/Stop button.
The unit will respond with
a beep.
Press the Jet Cool button to operate
the speed cooling mode and the unit
will operate at super high fan speed
on cooling mode for 30 minutes.
To cancel the Jet Cool mode, press the Jet Cool button, the
fan speed button or the room temperature setting button
again and the unit will operate at high fan speed on cooling
mode.
1
2
3
Jet cool operation
20 Room Air Conditioner
Cooling
Heating
�
(Heat pump model only)
Healthy�
Dehumidification
Auto�
changeover
ON
or or
Operating Instructions
o During the JET HEAT function at any moment, the A/C starts to blow the heat air at extremely high
speed for 60 minutes setting the room temp. automatically to 86°F(30°C). It is especially used to heat the
room temp. quickly in a cool winter.
On cooling, healthy dehumidification mode or auto changeover mode, however, the JET HEAT function
is not available.
o In order to return to the normal heating mode from the JET HEAT mode, just press the operation mode
selection button, airflow volume selection, temp. setting button or the JET HEAT button again.
NOTICE
Press the Start/Stop button.
The unit will respond with
a beep.
Press the Jet Heat button to operate the
speed heating mode and the unit will
operate at super high fan speed on heating
mode for 60 minutes.
To cancel the Jet Heat mode, press the Jet Heat button,
the fan speed button or the room temperature setting
button again and the unit will operate at high fan speed on
heating mode.
Jet heat operation (Optional)
1
3
4
Open the door of the remote controller.
To select Heating Operation.
2
Owner's Manual 21
ENGLISH
Operating Instructions
Press the Start/Stop button.
The unit will respond with a
beep.
1
Open the door of the remote
controller. Press the PLASMA
button.
Operation will start when the button
is pressed and stop when the button
is pressed again.
2
Set the fan speed again with the door of the remote
controller closed. You can select the fan speed in four
steps-low, medium, high or CHAOS.
Each time the button is pressed, the fan
speed mode is shifted.
h Air purifying operation (PLASMA) can be
with cooling, Heating or any other operations.
NEO PLASMA Air Purifying Operation only
If you press the only PLASMA button, only
PLASMA purification function operates.
Then, fan speed is low. You can select the fan
speed in four steps-low, medium, high or
CHAOS.
Each time the button ( ) is pressed, the fan
speed mode is shifted.
3
NEO PLASMA purification operation(Optional)
22 Room Air Conditioner
ON
OFF
CANCEL
SET
°C/°F
AUTO CLEAN
ON
OFF
SET
Operating Instructions
Press the Start/Stop button.
The unit will respond with
a beep.
Open the door of the remote control and press the 2nd
Function button to operate functions printed in blue unter
buttons.
(Check the indication of 2nd function on the display of the
remote controller.)
These buttons can set the timer as follows:
2nd function disappears in a short time automatically or when
the button is pressed again.
1
2
3
2nd F operation
For more details, refer to functions next pages.
Owner's Manual 23
ENGLISH
Delay OFF Timer Delay ON Timer Delay OFF and ON Timer Delay ON and OFF Timer
Operating Instructions
Sleep mode
1. Press the Sleep Mode Auto button to set the time you want the unit to stop automatically.
2. The Timer is programmed in one-hour increments by pressing the Sleep Mode Auto button 1 to 7 times. The
sleep mode is available for 1 to 7 times. To alter the time period in steps of 1 hour, press the Sleep Mode
Button while aiming at air conditioner.
3. Make sure the Sleep Mode Auto LED lights up.
To cancel the Sleep Mode, press the sleep Mode Auto button several times until the star
( ) disappears from the operation display.
The Sleep Mode will be operated at slow fan speed (cooling) or medium fan speed (heat pump
only) for a comfortable sleep.
In cooling mode or healthydehumidification mode:
The temperature will automatically rise by 2°F(1°C) over the next 30 minutes and by 4°F(2°C) in 1 hour for a
comfortable sleep.
NOTICE
Setting the time
1. Time can be set only when you press the Reset button. Having replacing the batteries,
you should press the reset buttons to reset the time. Press the Start/Stop button.
2. Press 2nd F button and check if 2nd F icon is on.
3. Press the Time Setting buttons until the desired time is set.
4. Press the Timer SET button.
Check the indicator for A.M. and P.M.
NOTICE
1. Make sure the time is set correctly on the display of the remote controller.
2. Press 2nd F button.
3. Press the ON/OFF Timer buttons to turn Timer on or off.
4. Press the Time Setting buttons until the desired time is set.
5. To set the selected time, press the Timer setting button aiming the remote controller at the
signal receptor.
To cancel the timer setting
Check if 2nd F icon is off.
Press the Timer Cancel button aiming the remote controller at the signal receptor.
(The timer lamp on the air conditioner and the display will go out.)
Delay start/Pre-set stop
Select one of the following four types of operation.
NOTICE
with the unit running
ON
OFF
CANCEL
SET
CANCEL
SET
CANCEL
SET
Additional Features
24 Room Air Conditioner
Fan speed is on low. Fan speed is on medium. Fan speed is on high.CHAOS Air
AUTO CLEAN
Operating Instructions
o During Auto Clean function, moistures left in indoor units after Cooling Operation or Healthy
Dehumidification Operation can be removed.
o During Auto Clean function, only Start/Stop button, Plasma button and Auto Clean button are available.
NOTICE
Airflow direction control
The up/down and right/left airflow can be adjusted by
using the remote control.
Press Chaos Swing button and the louvers will swing.
Press the Start/Stop button to start the unit.
Press the button again and the louvers will stop. After
30 minutes, the louvers return to the maximum airflow
position automatically.
Air circulation mode
Circulates the room air without cooling or heating.
1. Press the Start/Stop button. the unit will respond with a beep.
2. Open the door on the remote control. Press the Air Circulation button. Close the door on the remote control.
Now each time that you press the Indoor Fan Speed Selector, the fan speed is shifted from low to CHAOS
and back to low again.
CHAOS Air economizes power consumption and prevents overcooling. The fan speed is
automatically changed from high to low or vice versa, depending on the ambient temperature.
NOTICE
Auto clean
1. Whenever you press the Auto Clean button, Auto Clean Function will be reserved and cancelled.
2. Auto Clean function works before and after cooling or dehumidification mode. For details, refer to
the below points.
3. When the unit is started after the reservation of Auto Clean ,the Cool Start function operates and
indoor Fan is started after 20 seconds.
4. When you press Start/Stop button to turn off the unit after the you have reserved Auto Clean
function, the air-conditioner circulates the indoor air in the Auto Clean mode with no more
Cooling or Dehumidification operation. For Cooling only model, it lasts for 30 minutes for Heat
pump model, for 16 minutes.
5. If you press the auto clean button again during the product operation , Auto Clean function will be
cancelled.
Owner's Manual 25
ENGLISH
High�
Speed
ON/OFF�
button
Operating Instructions
Operation procedures when the remote control can't be used.
The operation will be started if the power button is pressed.
If you want to stop operation, re-press the button.
Forced operation
Auto restart
In case the power comes on again after a power failure, Auto Restarting Operation is the function to operate
procedures automatically to the previous operating conditions.
So there is no need of activating this function by pressing any key or button.
In the initial mode, the fan operates at a low speed and the compressor starts 2.5~3 minutes later.
As the compressor starts, the fan speed also resumes its previous setting mode.
Heat pump Model
Cooling Model
Room Temp. ≥ 76°F(24°C) 70°F(21°C) ≤ Room Temp. < 76°F(24°C) Room Temp. < 70°F (21°C)
Operating mode Cooling Cooling Healthy Dehumidification Heating
Indoor FAN Speed
High High High High
Setting Temperature
72°F(22°C) 72°F(22°C) 74°F(23°C) 76°F(24°C)
Helpful information
Fan speed and cooling capacity.
The cooling capacity indicated in the specification is the value
when the fan speed is set to high, and the capacity will be lower
at low or medium fan speed.
High fan speed is recommended when you wish to cool the room
quickly.
Test operation
During the TEST OPERATION, the unit operates in cooling mode at high speed fan, regardless of room
temperature and resets in 18 minutes.
During test operation, if remote controller signal is received, the unit operates as remote controller sets.
If you want to use this operation, Press and hold the ON/OFF button for 3~5 seconds, then the buzzer sound 1
"beep".
If you want to stop the operation, re-press the button.
Auto restart function has set enable as factory default.
But customer can set up by following this instruction.
To be disable function
- Press and hold the ON/OFF button for 6 seconds, then the buzzer sound 2 "beep" and the indicator lamp (1)
blinks 4 times.
To be enable function
- Press and hold the ON/OFF button for 6 seconds, then the buzzer sound 2 "beep" and the indicator lamp (1)
brights 4 times.
NOTICE
26 Room Air Conditioner
Maintenance and Service
Maintenance and Service
Indoor Unit
Before performing any maintenance, turn off the main power to the system, disconnect the circuit breaker and
unplug the power cord.
Clean the unit with a soft dry cloth. Do not use bleach or abrasives.
Never use any of these
• Water hotter than 40°C. It may cause deformation and discoloration.
• Volatile substances. They may damage the surface of the air conditioner.
Air Filters
The air filters behind the front panel / grill should be checked and
cleaned once in every 2 weeks or more often if necessary. To
remove the filters see the self explanatory diagrams for each model
type. Clean the filters with a vacuum cleaner or warm soapy water. If
dirt is not easily removed, wash with a solution of detergent in luke
warm water. Dry well in shade after washing and reinstall the filters
back in place.
Plasma Filters
The plasma filters behind the air filter should be checked and cleaned once in
every 3 months or more often if necessary. To remove the filters see the self
explanatory diagrams for each model type. Clean the filters with a vacuum
cleaner. If it is dirty wash it with water and dry well in shade an install back in
place.
Removal of Filters
1. Art Cool Type :
Pull out the upper section of front panel and lift it up. Take out a filter with front panel held.
With PUSH button pressed, pull out grip to take out a plasma filter. Dry it completely in the shade after cleaning.
Then set a plasma filter and a filter orderly. Put the hook of front panel onto the hanger, in order to close the front
panel.
Don't touch this plasma filter within 10 seconds after opening the inlet grille, it may cause an electric shock.
Front panel
Plasma filter
Front panel hook
Hook-hanger
Air filter
Air filter
G
a
s
o
l
i
n
P
o
w
d
e
r
Owner's Manual 27
ENGLISH
1.
Turn off power and then open
the upper part of front panel.
2.
Pull out the both links of lower
part of front panel, as
described in the below picture.
3.
Push and close the top part of
the front panel and then pull
the bottom part of the panel
forward until it is secured.
4.
Take out picture.
5.
Turn upside-down of the
picture and turn over mat, then
take off a protective tape
attached at the mat.
6.
Place the picture/photograph
between the exited picture and
mat. (Recommended size of a
photo/picture: 450mm x
450mm)
7.
Cover mat and press down
with hand(s) until contacting
closely.
8.
Slide the photo graph/drawing
requested under both hanger
parts as following, and fix them.
Press the front panel lightly to
close.
9.
Push both links of lower part of
panel inside and fix it. Then
turn on.
In case a mat is not used, recommended size of a photo/picture:
522mm x 522mm
When powering on after replacing filter and picture,
the front panel doesn't intervene.
Mat
450mm
450mm
522mm
522mm
Mat
Protective tape
Maintenance and Service
How to replace picture & photograph
28 Room Air Conditioner
Maintenance and Service
(Side)
(Rear)
Air outlet �
vents
Air intake �
vents
Piping
Outdoor Unit
The heat exchanger coils and panel vents of the outdoor unit should be checked regularly.
If clogged with dirt or soot, the heat exchanger
and panel vents may be professionally steam cleaned.
Dirty or clogged coils will reduce the
operating efficiency of the system and
cause higher operating costs.
NOTICE
Common Problems and Solutions
Before calling for service
If you have problems with your air conditioner, read the following information and try to solve
the problem. If you cannot find a solution, turn off the air conditioner and contact your dealer.
Air conditioner does not operate
1. Ensure that the air conditioner is plugged into a proper outlet.
2. Check the fuse or circuit breaker.
3. Check whether the voltage is unusually high or low.
Air does not feel cold enough on the cooling setting
1. Ensure that the temperature settings are correct.
2. Check to see if the air filter is clogged with dust. If so, replace the filter.
3. Ensure that the air flow from the outside is not obstructed and that there is a clearance of
over 20" between the back of the air conditioner and the wall or fence behind it.
4. Close all doors and windows and check for any source of heat in the room.
Before calling for service, please review the following list of common problems and
solutions.
The air conditioner is operating normally when:
• You hear a pinging noise. This is caused by water being picked up by the fan on rainy days
or in highly humid conditions. This feature is designed to help remove moisture in the air
and improve cooling efficiency.
• You hear the thermostat click. This is caused by the compressor cycle starting and
stopping.
• You see water dripping from the rear of the unit. Water may be collected in the base pan in
highly humid conditions or on rainy days. This water overflows and drips from the rear of
the unit.
• You hear the fan running while the compressor is silent. This is a normal operational
feature.
Owner's Manual 29
ENGLISH
Maintenance and Service
Troubleshooting
The air conditioner may be operating abnormally when:
Problem
n The air conditioner is
unplugged.
n The fuse is blown/circuit
breaker is tripped.
n Power failure.
n Airflow is restricted.
n The thermostat may not be
set high enough.
n The air filter is dirty.
n The room may have been
hot.
n Cold air is escaping.
n Cooling coils have iced up.
n Ice blocks the air flow and
stops the air conditioner from
cooling the room.
Air
conditioner
does not start
Air
conditioner
does not cool
as it should
Air
conditioner
freezing up
• Make sure the air conditioner plug is
pushed completely into the outlet.
• Check the house fuse/circuit breaker
box and replace the fuse or reset the
breaker.
• If power failure occurs, turn the mode
control to Off.
When power is restored, wait 3
minutes to restart the air conditioner
to prevent tripping of the compressor
overload.
• Make sure there are no curtains,
blinds, or furniture blocking the front of
the air conditioner.
• Turn the knob to a higher number.
The highest setting provides
maximum cooling.
• Clean the filter at least every 2 weeks.
See the care and Maintenance
section.
• When the air conditioner is first turned
on, you need to allow time for the
room to cool down.
• Check for open furnace floor registers
and cold air returns.
• See Air Conditioner Freezing Up
below.
• Set the mode control at High Fan or
High Cool with thermostat at 1 or 2.
What To DoPossible Causes
* You can refer to the Energy Star program in detail at www.energystar.gov.
30 Room Air Conditioner
US
1. Please call the installing contractor of your product, as warranty service will be provided by them.
2. If you have service issues that have not been addressed by the contractor, please call 1-888-865-3026.
CANADA
Service call Number # : (888) LG Canada, 1-888-542-2623
LGEUS
LG Electronics, Air conditioning Division
1000 Sylvan Ave., Englewood Cliffs, NJ 07632
LGECI
LG Electronics Canada Inc.
20 NORELCO DRIVE. NORTH YORK, ONTARIO M9L 2X6.
