Page 1
OWNER’S MANUAL
AIR CONDITIONER
Please read this manual carefully before operating
your set and retain it for future reference.
TYPE : WALL MOUNTED
*MFL67658908*
P/NO : MFL67658908
www.lg.com
Page 2
TIPS FOR SAVING ENERGY
2
TIPS FOR SAVING ENERGY
Here are some tips that will help you minimize the power consumption when you use the air
conditioner. You can use your air conditioner more eciently by referring to the instructions
below:
• Do not cool excessively indoors. This may be harmful for your health and may consume more
electricity.
• Block sunlight with blinds or curtains while you are operating the air conditioner.
• Keep doors or windows closed tightly while you are operating the air conditioner.
• Adjust the direction of the air ow vertically or horizontally to circulate indoor air.
• Speed up the fan to cool or warm indoor air quickly, in a short period of time.
• Open windows regularly for ventilation as the indoor air quality may deteriorate if the air
conditioner is used for many hours.
• Clean the dual protection lter once every 2 weeks. Dust and impurities collected in the
dual protection lter may block the air ow or weaken the cooling / dehumidifying functions.
For your records
Staple your receipt to this page in case you need it to prove the date of purchase or for warranty
purposes. Write the model number and the serial number here:
Model number :
Serial number :
You can nd them on a label on the side of each unit.
Dealer’s name :
Date of purchase :
Page 3
IMPORTANT SAFETY INSTRUCTIONS
IMPORTANT SAFETY INSTRUCTIONS
READ ALL INSTRUCTIONS BEFORE USING THE APPLIANCE.
Always comply with the following precautions to avoid dangerous situations and ensure peak
performance of your product
WARNING
!
It can result in serious injury or death when the directions are ignored
CAUTION
!
It can result in minor injury or product damage when the directions are ignored
WARNING
!
• Installation or repairs made by unqualied persons can result in hazards to you and others.
• Air conditioner Shall be installed in accordance with national wiring regulations.
• If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or
similarly qualied persons in order to avoid a hazard.
• The information contained in the manual is intended for use by a qualied service technician
familiar with safety procedures and equipped with the proper tools and test instruments.
• Failure to carefully read and follow all instructions in this manual can result in equipment malfunction, property damage, personal injury and/or death.
• 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.
• When the power cord is to be replaced, replacement work shall ve performed by authorized
personnel only using only genuine replacement parts.
3
Installation
• Use a standard circuit breaker and fuse conforming with the rating of the air conditioner. Failure to do so may result in electric shock or product failure.
• Contact an authorized service center when you install or relocate the air conditioner. Failure to
do so may result in serious injury or product failure.
• Always use a power plug and socket with a ground terminal. Failure to do so may result in
electric shock or product failure
• Install the panel and the cover of the control box safely. Failure to do so may result in explosion or re.
• Install a dedicated electric outlet and circuit breaker before you use the air conditioner. Failure
to do so may result in electric shock or product failure.
• Use a standard circuit breaker and fuse conforming with the rating of the air conditioner. Failure to do so may result in electric shock or product failure.
• Do not modify or extend the power cable. If the power cable or cord has scratches or skin
peeled off or deteriorated then it must be replaced. It may result in re or electric shock.
• Be cautious when you unpack or install the air conditioner. Failure to do so may result in serious injury or product failure.
• Contact an authorized service center when you install or relocate the air conditioner. Failure to
do so may result in serious injury or product failure.
Page 4
IMPORTANT SAFETY INSTRUCTIONS
4
• Do not install the air conditioner on an unstable surface or where there may be a danger of it
falling. It may result in death, serious injury, or product failure.
• Use inammable gas (nitrogen) to inspect leak and to purge air, using compressed air or ammable gas may cause re or explosion.
Operation
• Do not let the air conditioner run for a long time when the humidity is very high or when a door or
window has been left open. Failure to do so may result in product failure.
• Make sure that the power cord is not pulled or damaged while the air conditioner is operating. Failure to do so may result in re, electric shock, or product failure.
• Do not place any objects on the power cord. It may result in electric shock or product failure.
• Do not turn on or off the air conditioner by plugging in or unplugging the power plug. It may result in
re or electric shock.
• Do not touch, operate or repair the air conditioner with wet hands. It may result in electric shock or
product failure.
• Do not place a heater or other heating appliances near the power cable. It may result in re, electric
shock, or product failure.
• Do not allow water to run into the air conditioner. It may result in explosion or re.
• Do not leave ammable substances such as gasoline, benzene and thinner near the air conditioner.
It may result in explosion or re.
• Do not use the air conditioner for an extended period of time in a small place without ventilation.
Ventilate the place regularly. Failure to do so may result in explosion or re.
• When there is a gas leak, ventilate sufficiently before using the air conditioner again. Failure to do so
may result in explosion or re.
• Unplug the power plug if there is a noise, smell or smoke coming from the air conditioner. Failure to
do so may result in explosion or re.
• Stop operating and close the window in strom or hurricane. If possible remove the product from the
window before hurricane arrives
• Do not touch the electrostatic lter after opening the front grille. Failure to do so may result in electric shock or product failure.
• Contact an authorized service center when the air conditioner is submerged into water due to ooding. Failure to do so may result in explosion or re.
• Be cautious water could not enter the product.
• Make sure to ventilate sufficiently when this air conditioner and a heating appliance such as a heater
are used simultaneously. Failure to do so may result in re, serious injury, or product failure.
• Turn the main power off and unplug the power plug when you clean or repair the air conditioner.
Failure to do so may result in death, serious injury, or product failure.
• Unplug the power plug when the air conditioner is not used for an extended period of time. Failure
to do so may result in product failure.
• Do not place any objects on the air conditioner. It may result in product failure.
WARNING
!
• 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, re,
or electronic shock.
Page 5
IMPORTANT SAFETY INSTRUCTIONS
CAUTION
!
Installation
• Make sure to check if there is a refrigerant leak after you install or repair the air conditioner. Failure
to do so may result in product failure.
• Install the drain hose properly for smooth drainage of condensed water. Failure to do so may result
in product failure.
• Keep level even when installing the product.
• Install the air conditioner where the noise from the outdoor unit or the exhaust gas will not inconvenience the neighbors. Failure to do so may result in conict between neighbors.
• When transporting the equipment, there should be at least 2 or more people, or a forklift. It may result in serious injury.
• Do not install the air conditioner where it will be exposed to sea wind (salt spray) directly. It may result in product failure.
Operation
• Do not expose people, animals or plants to the cold or hot wind from the air conditioner. It may result in serious injury.
• 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. It may result in death, re or electric
shock.
• Do not block the inlet or outlet of air ow. It may result in explosion or product failure.
• Do not use strong cleaning agents or solvents when you clean the air conditioner, or spray water.
Use a smooth cloth. It may result in serious injury or product failure.
• Never touch the metal parts of the air conditioner when you remove the air lter. It may result in serious injury or product failure.
• Do not place any objects on the air conditioner. It may result in product failure.
• Always insert the lter securely after cleaning. Clean the lter every two weeks or more often if
necessary.
• Do not insert hands or other objects through the air inlet or outlet while the air conditioner is operating. It may result in electric shock.
• Do not drink the water drained from the air conditioner. It may result in serious health complications.
• Use a sturdy stool or ladder when you clean, maintain or repair the air conditioner at a height. Failure
to do so may result in serious injury or product failure.
• Do not mix the batteries for the remote control with other types of batteries or mix new batteries
with used batteries. Failure to do so may result in product failure.
• Do not recharge or disassemble the batteries. Failure to do so may result in explosion, re or serious
injury.
• Stop using the remote control if there is a battery uid leak. If your cloth or skin is exposed to the
battery uid from a leak, wash it off with clean water. Failure to do so may result in serious injury.
• If you swallow the battery uid from a leak, wash out the inside of your mouth thoroughly and then
consult a doctor. Failure to do so may result in serious health complications.
5
Page 6
TABLE OF CONTENTS
6
TABLE OF CONTENTS
2 TIPS FOR SAVING
ENERGY
3 IMPORTANT SAFETY
INSTRUCTIONS
7 BEFORE USE
7 Components
8 Using the remote control
9 - Inserting batteries
9 - Installing the remote control holder
10 BASIC FUNCTIONS
10 Cooling your room
10 Removing humidity
10 Airing your room
10 Adjusting the fan speed
11 Adjusting the air flow direction
11 Setting the timer
11 - Setting the current time
11 - Turning on the air conditioner
11 - T
12 - Canceling the timer setting
12 - Setting sleep mode
automatically at a set time
to-
matically at a set time
12 ADVANCED FUNCTIONS
12 Changing room temperature quickly
13 Indoor air purification
13 - Auto Clean operation
13
Skin Care operation
13
Plasma
ster Purification operation
14
Auto operation
14 Energy saving cooling mode
14 Display sc
°C / °F conversion
14
15 Operating the air conditioner without
the remote control
15 Restarting the air conditioner automat-
ically
reen brightness
16 MAINTENANCE
17
17 Cleaning the anti-allergy filter and triple
filter (Optional)
17 Cleaning the plasma filter (Optional)
17
18 TROUBLESHOOTING
18 Self-diagnosis function
18 Before requesting service
Page 7
BEFORE USE
Components
Indoor unit
Front grille
(Optional)
Dual Protection Filter
(Optional)
Air inlet
ON/OFF button
BEFORE USE
Plasmaster Ionizer(Optional)
7
3M micro-
(Optional)
* The feature can be changed according a type of model.
NOTE
!
The number of operation lamps and their locations may vary, depending on the model of the
air conditioner.
Air outlet
Horizontal vaneHorizontal vane
Vertical louver
Operation lamp
Signal Receiver
(Optional)
Outdoor unit
Air inlet vents
Air outlet vents
Coolant piping
Drain hose
Connection
wire
B ase plate
* The feature can be changed according a type of model.
Page 8
BEFORE USE
8
Using the remote control
buttons for the additional functions under the cover of the remote control.
Wireless remote control
Display
screen
Control
panel
A/CLEAN
Control
panel
Display
screen
lasma button* :
P
moving particles that enter the indoor
unit.
Energy saving button :
energy saving cooling
Skin Care button
-
n/Off button:
O
-
T
emperature adjustment buttons :
Adjusts the room temperature when
cooling.
Operation mode s election button* : Selects the operation mode.
Cooling operation ( ) /
Auto operation ( ) / Dehumidifying
operation ( ) /
J
et cooling button :
indoor temperature within a short period
of time.
Indoor fan spee d button: Adjusts the
fan speed.
Air flow direction button: Adjusts the air
Light button :
-
of the indoor unit display
Temperature dis play button: Displays
the room temperature and also changes
unit from
leep mode auto button : Sets the
S
sleep mode auto operation.
hr
Timer button: Sets the current time and
the start / end time.
Auto clean button :
A/CLEAN
* Some functions may not be supported, depending on the
model.
and clean inside of the indoor unit when
et/clear button: Sets or cancels func-
S
-
tions.
R
es et button: Initialize the air condi-
-
tioner settings.
Description
Operates
: keeps skin moisturized.
Air circulation
( )
Cools down the
horizontally.
Adjusts the brightness
o
C to oF if pressed for 5 seconds.
Remove moisture
Page 9
BEFORE USE
9
Inserting batteries
Insert batteries before using the remote
control. The battery type used is AAA (1.5 V).
1 Remove the battery cover.
2 Insert the new batteries and make sure
that the + and - terminals of the batteries
are installed correctly.
3 Reattach the battery cover.
NOTE
!
If the display screen of the remote control
starts to fade, replace the batteries.
2 Fix the holder by fastening the 2 screws
rmly with a screwdriver.
3 Slide the remote control into the holder.
Operating method
Point the remote control towards the signal
receiver at the bottom of the air conditioner to
operate it.
Installing the remote control holder
Install the holder where there is no direct sunlight to protect the remote control.
1 Choose a safe and easily-accessible place.
NOTE
!
• The remote control may operate other
electronic devices if pointed towards
them. Make sure to point the remote
control towards the signal receiver of
the air conditioner.
• For proper operation, use a soft cloth to
clean the signal transmitter and receiver.
Page 10
BASIC FUNCTIONS
10
BASIC FUNCTIONS
Cooling your room
(Cool ing operation)
1 Press to turn on the power.
2 Press repeatedly to select the cooling
operation.
- is displayed on the display screen.
3 Press or to set the desired tempera-
ture.
- The temperature range is 18°C (64°F) ~
30°C (86°F).
Removing humidity
(Dehumidifying operation)
This mode removes excess moisture from an
environment with high humidity or in the rainy
season, in order to prevent mold from setting
in. This mode adjusts the room temperature
and the fan speed automatically to maintain
the optimal level of humidity.
1 Press to turn on the power.
2 Press repeatedly to select the dehu-
midifying operation.
- is displayed on the display screen.
Airing your room
(Air Circulation operation)
This mode only circulates the indoor air
without changing the room temperature.
1 Press to turn on the power.
2 Press repeatedly to select the air circu-
lation operation.
- is displayed on the display screen.
3 Press to adjust the fan speed.
Adjusting the fan speed
1 Press repeatedly to adjust the fan
speed.
- Select if you want natural air.
The fan speed adjusts automatically.
Remark Speed
High
NOTE
!
• In this mode you cannot adjust the desired
temperature, as it is adjusted automatically. Also, the desired temperature is
not displayed on the display screen.
Medium
Low
Natural Wind
Page 11
BASIC FUNCTIONS
11
Adjusting the air flow
direction
1
zontally, press repeatedly and select
the desired direction.
- Select to adjust the direction of the air
NOTE
!
may not be supported, depending on
the model.
cause product failure.
• If you restart the air conditioner, it starts
to operate with the previously set direc-
not match the icon displayed on the remote control. When this occurs, press
again.
vertically
Setting the timer
You can use the timer function to save energy
2 Press or to select the minutes.
3 Press
Turning on the air conditioner
automatically at a set time
1 Press .
the display screen.
2 Press or to select the minutes.
3 Press
4 When setting the timer, current time and
ON icon are displayed on the display
screen indicating that the desired time is
set.
T tomatically at a set time
1 Press .
the display screen.
Setting the current time
1 Press and hold it for longer than 3 sec-
onds.
the display screen.
2 Press or to select the minutes.
3 Press
4 When setting the timer, current time and
OFF icon are displayed on the display
screen indicating that the desired time is
set.
Page 12
ADVANCED FUNCTIONS
12
Canceling the timer setting
1 Press .
- To cancel all timer settings, press .
Setting sleep mode
tioner automatically when you go to sleep.
1 Press to turn on the power.
2 Press
3 Press or to select the hour
(up to 7 hours).
4 Press
- is displayed on the display screen in
sleep mode.
NOTE
!
In the Cooling and Dehumidifying modes,
the temperature increases by 1°C after 30
minutes and by a further 1°C after another
30 minutes for a more comfortable sleep.
The temperature increases with up to 2°C
from the preset temperature.
ADVANCED FUNCTIONS
vanced functions.
Changing room temperature
quickly
(Jet Cool operation)
This mode allows you to cool indoor air quickly
in summer .
1 Press to turn on the power.
2 Press .
- In jet cooling mode, strong air blows out
at a temperature of 18°C (64°F) for 30
minutes.
NOTE
!
• Powerful Cooling
- C/O Model
Enable in Cooling/Dehumidifying/Fan/
• This function may not be supported, de-
pending on the model.
Page 13
ADVANCED FUNCTIONS
13
Indoor air purification
Auto Clean operation
In the cooling and dehumidifying operations,
moisture is generated inside the indoor unit.
Use the auto cleaning function to remove
such moisture.
1 Press .
A/CLEAN
- is displayed on the display screen.
ates for 30 minutes and cleans the inside
of the indoor unit.
NOTE
!
Some buttons cannot be used while the
auto cleaning function is in operation.
Plasma Purification operation
microscopic contaminants from the intake air
completely to supply clean and fresh air.
1 Press to turn on the power.
2 Press .
- is displayed on the display screen.
!
• You can use this function by pressing
• The plasma lamp light up while plasma
NOTE
without turning the air conditioner on.
Skin Care operation
Use the Skin Care mode to keeps skin moisturized.
1 Press to turn on the power.
2 Press to enter the Skin Care mode
- Nothing is going to change on the remote control
display screen.
- This mode operates with high fan speed and setting
However, temperature is not changed.
- In this mode, you can change the setting temperature,
fan speed and vane directions.
NOTE
!
- This function can be operated on Cooling
mode, Fan Mode and Plasma mode
environment.
Page 14
ADVANCED FUNCTIONS
14
Auto operation
(Artificial intelligence)
Cooling-only models
In this mode, the fan speed and the temperature adjust automatically , based on the room
temperature.
1 Press to turn on the power.
2 Press repeatedly to select auto opera-
tion.
3 Press or to select the desired opera-
tion code if the temperature is higher or
lower than the desired temperature.
Code Description
2 Cool
1 Cool slightly
Maintain
0
room
temperature
Heat slightly -1
2- taeH
NOTE
!
• In this mode, you cannot adjust the fan
to rotate automatically.
• This function may not be supported, de-
pending on the model.
Energy saving cooling mode
This mode minimizes power consumption dur-
ing cooling and increases the set temperature
to the optimal level for a more comfortable
environment.
1 Press to turn the power on.
2 Press repeatedly to select the cooling
operation.
3 Press .
- is displayed on the display screen.
NOTE
!
• This function may not be supported,
depending on the model.
• Possible, Different temperature is dis-
played on between remote controller
and air conditioner during operation.
Display screen brightness
You can adjust the brightness of the indoor
unit display screen.
1 Press to turn on/off the lamp on the
front grill.
NOTE
!
This function may not be supported,
depending on the model.
°C/°F Conversion
The unit converses from °C to °F or from °F
to °C if Room Temperature KEY ( )
is pressed for 5 seconds.
Page 15
ADVANCED FUNCTIONS
15
Operating the air conditioner
without the remote control
unit to operate the air conditioner when the
remote control is unavailable. However, the
fan speed is set to high.
1 Open the front cover.
- Lift up both sides of the cover slightly.
* The feature can be changed according to
type of model.
2
ON/OFF
button
Restarting the air conditioner
automatically
When the air conditioner is turned on again
after a power failure, this function restores
the previous settings. This function is a factory default setting.
Disabling auto restart
1 Open the front cover.
- Lift up both sides of the cover slightly.
* The feature can be changed according to
type of model.
2 Press the On/O button and hold it for 6
seconds.
- The unit will beep twice and the lamp will
blink 6 times.
* The feature can be changed according to
type of model.
- For cooling and heating models, the operation mode changes, depending on the
room temperature.
Room temp. Set temp.
Below
21°C(70°F)
Above
21°C(70°F)
And
Below
24°C(76°F)
Above
24°C(76°F)
- For cooling-only models, the temperature
is set to 22°C (72°F).
24°C(76°F)
23°C(74°F)
22°C(72°F)
Operation
mode
Heating
operation
Dehumidifying operation
Cooling
operation
ON/OFF
button
* The feature can be changed according to
type of model.
- To re-enable the function, press the On/
O button and hold it for 6 seconds. The
unit will beep twice and the blue lamp will
blink 4 times.
NOTE
!
If you press and hold the On/O 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 air for cooling for 18 minutes and
then returns to the factory default settings.
Page 16
MAINTENANCE
16
MAINTENANCE
Clean the product regularly to maintain optimal performance and to prevent possible breakdown.
* This may not be provided, depending on the model.
(Optional)
Dual Protection Filter
(Optional)
Plasmaster Ionizer(Optional)
3M micro-
(Optional)
* The feature can be changed according to type of model.
Item Cleaning interval Cleaning method
Dual Protection Filter
Indoor unit surface
Outdoor unit
2 weeks
3 months
3 months
3 months
1 months
Regularly
Regularly
(Optional)
See”Cleaning dual Protection Filter”
Use a soft, dry cloth. Do not use bleach or
abrasives.
Use steam to clean the heat exchanger coils
and the panel vents (consult with technician).
Cleaning the Plas mas ter Ionizer(O ptional)
• Turn off the power and unplug the power cord.
• Use dry cotton bud to remove any dust.
Note : The plasmaster ionizer may not be included in some models.
CAUTION
!
• Turn off the power and unplug the power cord before you perform any maintenance; otherwise it may cause electric shock.
tion or discoloration.
the product.
NOTE
!
• Make sure to clean the heat exchanger coils of the outdoor unit regularly, as dirt collected
lters. It may cause deforma-
may damage the surface of
be damaged.
the model.
Page 17
once every 2 weeks or more if necessary.
1
cord.
2 Open the front cover.
- Lift up both sides of the cover slightly.
MAINTENANCE
Cleaning the plasma filter
(Optional)
1
cord.
2 Open the front cover and remove
3
17
* The feature can be changed according to
type of model.
3
lift it up slightly and remove it from the unit.
* The feature can be changed according to
type of model.
4
with warm water.
in lukewarm water with detergent.
5
Cleaning the anti-allergy filter
and triple filter (Optional)
1
cord.
2 Open the front cover and remove
3
* The feature can be changed according to
type of model.
4 Use a vacuum cleaner to remove any dirt.
with lukewarm water.
5
Cleaning the 3M multi protection-
(Optional)
1
cord.
2 Open the front cover and remove
3
(Optional)
(Optional)
4 Use a vacuum cleaner to remove any dirt.
NOTE
!
pending on the model.
4
NOTE
!
included in some model.
(Depending on the model)
Page 18
TROUBLESHOOTING
18
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 requesting 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
There is a burning smell and
a strange sound coming
from the unit.
Water leaks from the indoor
unit even when the humidity
level is low.
The power cord is damaged
or generating excessive
heat.
A switch, a circuit breaker
(safety, ground) or a fuse is
not operated properly.
The air conditioner is
unplugged.
A fuse is blown or the
power supply is
blocked.
Turn o the air conditioner, unplug the
power cord and contact the service center.
Check whether the power cord is plugged
into the outlet.
Replace the fuse or check if the circuit
breaker has tripped.
The air conditioner does not
work.
A power failure has
occurred.
The voltage is too
high or too low.
The air conditioner
turned o automatically at a preset time.
Turn o the air conditioner when a power
failure occurs. When the power is restored,
wait 3 minutes, and then turn on the air
conditioner.
Check if the circuit breaker has tripped.
Press the power button again.
Page 19
TROUBLESHOOTING
Problem Possible causes Corrective action
Air is not circulating
properly.
Make sure that there are no curtains,
blinds or furniture blocking the front of the
air conditioner.
19
The air conditioner does not
generate cool air.
It is not possible to adjust
the fan speed.
It is not possible to adjust
the temperature.
The dual protection
The room temperature is too high.
Cold air is escaping
from the room.
The desired temperature is higher than the
set temperature.
There is a heating
source nearby.
Air circulation operation is selected.
The auto operation,
jet operation or dehumidifying operation is
selected.
The air circulation operation or jet operation is selected.
once every 2 weeks.See “Cleaning
In summer, it may take some time to cool
indoor air. In this case, select the jet cool
operation to cool indoor air quickly.
Make sure that no cold air is escaping
through ventilation points in the room.
Set the desired temperature to a level
lower than the current temperature.
Avoid using a heat generator such as an
electric oven or a gas burner while the air
conditioner is in operation.
In the air circulation operation, air blows
from the air conditioner without cooling or
heating the indoor air. Switch the operation mode to the cooling operation.
In some operation modes, such as the jet
or dehumidifying operation modes, you
cannot adjust the fan speed. Select an operation mode in which you can adjust the
fan speed.
In some operation modes, such as the air
circulation or jet operation mode, you cannot adjust the temperature. Select an operation mode in which you can adjust the
temperature.
Page 20
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