LG | CQ09.NA0 | LG CQ18.NA0 Owner’s Manual

1,MFL67870304,영영 17. 7. 20. 영영 10:03 Page 1
Please read this manual carefully before operating
your set and retain it for future reference.
※ This product contains Fluorinated Greenhouse Gases. (R410A)
P/NO : MFL67870304
Original instruction
[Representative] LG Electronics Inc. EU Representative : LG Electronics European Shared
Service Center B.V. Krijgsman 1, 1186 DM Amstelveen, The Netherlands
[Manufacturer] LG Electronics Inc. Changwon 2nd factory 84, Wanam-ro, Seongsangu, Changwon-si, Gyeongsangnam-do, KOREA
Floor Standing Type(Console)
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Air Conditioner Owner’s Manual
A. Safety Precautions ..............................3
B. Electrical Safety...................................8
Temporary Use of an Adapter................8
Temporary Use of an Extension Cord ...8
Symbols used in this Manual.................8
C. Product Introduction...........................9
Indoor Unit.............................................9
Operation Indication Lamps ..................9
D. Preparation Before Operation ..........10
How to insert the Batteries ..................10
Wireless Remote Controller
Operating Method................................10
Wireless Remote Controller.................11
Setting the Current Time .....................12
Air Flow Selection................................12
E. Operating Instructions ......................13
Operation Mode...................................13
Auto Changeover Operation
(Single Model Only).............................14
Auto Operation ....................................14
Healthy Dehumidification Operation....14
Air Circulation Operation .....................15
Auto Clean Operation..........................15
Air Purifier Operation...........................15
Energy-Saving Cooling Mode..............16
Display Temperature Unit ....................16
Mode Lock setting ...............................16
Timer Setting .......................................17
To cancel the timer setting...................17
Sleep Mode Operation ........................17
Upper Horizontal Vane Control............18
Floor Heating Mode.............................18
Jet Cool Operation ..............................18
Forced operation .................................19
Auto Restart Function..........................19
Filter Sign ............................................19
F. Maintenance and Service ..................20
Indoor Unit...........................................20
Outdoor Unit ........................................21
Operation Tips! ....................................21
Self-Diagnosis Function ......................21
Troubleshooting Tips!
Save time and money!.........................22
Call the service immediately in the
following situations ..............................22
2 Air Conditioner
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.
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.
• 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
1,MFL67870304,영영 17. 7. 20. 영영 10:03 Page 3
Safety Precautions
To prevent injury to 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.
n Meanings of symbols used in this manual are as shown below.
Be sure not to do.
Be sure to follow the instruction.
Always use a power plug
and socket with a ground
Do not use a defective or
underrated circuit breaker. Use the correctly rated
breaker and fuse.
Do not use a multi consent. Always use this
appliance on a dedicated
circuit breaker.
• There is a risk of electric
• There is risk of fire or electric shock .
• Otherwise it can cause
electric shock or fire.
For electrical work, contact
the dealer, seller, a qualified
electrician, or an Authorized
Service Center. Do not disassemble or repair the product
by yourself.
Always ground the product
as per the wiring diagram.
Do not connect the ground
wire to gas or water pipes
lightening rod or telephone
ground wire.
Install the panel and the
cover of control box
• There is risk of fire or electric shock.
• There is risk of fire or electric shock.
• There is risk of fire or electric shock due to dust ,
water etc.
Use the correctly rated
breaker or fuse.
Do not modify or extend the
power cable. If the power
cable or cord has scrathes or
skin peeled off or deteriorated then it must be replaced.
For installation, removal
or reinstall , always contact the dealer or an
Authorized Service Center.
• There is risk of fire or electric shock.
• There is risk of fire or electric shock.
• There is risk of fire, electric
shock, explosion, or injury.
Owner's Manual 3
Safety Precautions
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Safety Precautions
Do not install the product
on a defective installation
stand. Be sure that the
installation area does not
deteriorate with age.
Never install the outdoor
unit on a moving base
or a place from where it
can fall down.
When the product is soaked
(flooded or submerged) in
water , contact an Authorized
Service Center for repair
before using it again.
• It may cause product to fall. • The falling outdoor unit can • There is risk of fire or eletric
cause damage or injury or
even death of a person.
In outdoor unit the step-up
capacitor supplies high voltage electricity to the electrical
components. Be sure to discharge the capacitor completely before conducting the
repair work.
When installing the unit,
use the installation kit
provided with the product.
Be sure to use only those
parts which are listed in
the svc parts list. Never
attempt to modify the
• An charged capacitor can
cause electrical shock.
• Otherwise the unit may fall
and cause severe injury.
• The use of inappropriate
parts can cause an electrical shock, excessive heat
generation or fire.
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.
Safely dispose off the
packing materials. Like
screws, nails, batteries,
broken things etc after
installation or svc and
then tear away and throw
away the plastic packaging bags.
Make sure to check that
the power cable plug is
not dirty, loose or broken
and then only insert the
plug completely.
• Improper or loose connections can cause heat generation or fire.
• Children may play with
them and cause injury.
• Dirty, loose or broken
power plug can cause
electric shock or fire.
Be sure to check the
refrigerant to be used.
Please read the label on
the product.
Don't use a power cord, a
plug or a loose socket
which is damaged.
Do not touch , operate, or
repair the product with
wet hands. Hold the plug
by hand when taking out
• Incorrect refrigerant used
can prevent the normal
operation of the unit.
• Otherwise it may cause a
fire or electrical shock.
• There is risk of electric
shock or fire.
4 Air Conditioner
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Safety Precautions
Do not allow water to run
into electric parts. Install
the unit away from water
Do not store or use or
even allow flammable gas
or combustibles near the
• There is risk of fire and
electric shock.
• There is risk of fire, failure
of the product, or electric
• There is risk of fire.
Do not use the product in
a tightly closed space for
a long time. Perform ventilation regularly.
Do not open the front
grille of the product during operation.
If strange sound, smell or
smoke comes from product.Immediately turn the
breaker off or disconnect
the power supply cable.
• There is risk of physical
• Oxygen deficiency could
occur and hence harm your injury, electric shock, or
product failure.
Ventilate the product
room from time to time
when operating it together with a stove, or heating
element etc.
Turn the main power off
and unplug the unit when
cleaning or repairing the
• There is risk of electric
shock or fire.
When the product is not
to be used for a long
time, disconnect the
power supply plug or turn
off the breaker.
• There is risk of electric
• Oxygen deficiency can
occur and hence harm your shock.
• There is risk of product
damage or failure, or unintended operation.
Take care to ensure that
nobody especially kids
could step on or fall onto
the outdoor unit.
Take care to ensure that
power cable could not be
pulled out or damaged
during operation.
Do not place ANYTHING
on the power cable.
• This could result in personal
injury and product damage.
• There is risk of fire or electric shock.
• There is risk of fire or electric shock.
Do not plug or unplug the power supply
plug to turn the unit ON/OFF .
When flammable gas leaks, turn off the
gas and open a window for ventilation
befor turning on the product.
• There is risk of fire or electric shock.
• Do not use the telephone or turn switches
on or off. There is risk of explosion or fire.
Owner's Manual 5
Do not place a heater or
other heating appliances
near the power cable.
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Safety Precautions
Two or more people must
lift and transport the
Do not install the product
where it will be exposed to
sea wind (salt spray) directly.
Install the drain hose to ensure
that the condensed water is
drained away properly.
• Avoid personal injury.
• It may cause corrosion on
the product.
• A bad connection may
cause water leakage.
Keep level even when
installing the product.
Do not install the product
where the noise or hot air
from the outdoor unit
could damage or disturb
the neighborhoods.
Always check for gas
(refrigerant) leakage after
installation or repair of
• To avoid vibration or noise.
• It may cause a problem for your • Low refrigerant levels may
cause failure of product.
neighbors and hence dispute.
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.
Do not block the inlet or
outlet of air flow.
Use a soft cloth to clean.
Do not use harsh detergents, solvents or splashing water etc .
• There is risk of damage or
loss of property.
• It may cause product failure.
• 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.
Do not step on or put
anyting on the product.
(outdoor units)
Always insert the filter
securely after cleaning. Clean
the filter every two weeks or
more often if necessary.
• There is risk of personal
• There is risk of personal
• A dirty filter reduces the effiinjury and failure of product. ciency.
Do not insert hands or
other objects through the
air inlet or outlet while
the product is operating.
Be cautious when
unpacking and installing
the product.
If the refrigerant gas
leaks during the repair,
do not touch the leakaing
refrigerant gas.
• There are sharp and moving parts that could cause
personal injury.
• Sharp edges could cause
• The refrigernat gas can
cause frostbite (cold burn)
6 Air Conditioner
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Safety Precautions
Do not mix air or gas
other than the specified
refrigerant used in the
system .
If the refrigerant gas leaks
during the installation,
ventilate the area immediately.
• The condensed water
inside can spill .
• If air enters the refrigerant
system, an excessively high
pressure results, causing
equipment damage or injury.
• Otherwise it can be harmfull for your health.
Dismantling the unit,
treatment of the refrigerant oil and eventual parts
should be done in accordance with local and
national standards.
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.
Do not recharge or disassemble the batteries. Do
not dispose off batteries
in a fire.
• There is risk of fire or prod- • They may burn or explode.
uct failure.
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.
If you eat the liquid from
the batteries, brush your
teeth and see doctor. Do
not use the remote if the
batteries have leaked.
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.
• The chemicals in batteries
could cause burns or other
health hazards.
• The chemicals in batteries
could cause burns or
other health hazards.
• Moisture may condense
and wet or damage furniture.
Do not expose your skin
or kids or plants to the
cool or hot air draft.
Do not drink the water
drained from the product.
Use a firm stool or ladder
when cleaning, maintaining or repairing the product at an height.
• This could harm to your
• It is not sanitary and could
cause serious health
• Be careful and avoid personal injury.
Do not sit or step on the indoor unit
• It may cause product failure.
Owner's Manual 7
Do not tilt the unit when
removing or uninstalling
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Electrical Safety
Electrical Safety
• This appliance must be properly grounded.
To minimize the risk of electric shock, you must always 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.
• The Power cord connected to the unit should be selected according to the following specifications.
Temporary Use of an Adapter
We strongly discourage the use of an adapter due to potential safety hazards. For temporary connections,
use only a genuine adapter, available from most local hardware stores. Ensure that the large slot in the
adapter is aligned with the large slot in the receptacle for a proper polarity connection.
To disconnect the power cord from the adapter, use one hand on each to avoid damaging the ground terminal. Avoid frequently unplugging the power cord as this can lead to eventual ground terminal damage.
• Never use the appliance with a broken adapter.
Temporary Use of an Extension Cord
We strongly discourage the use of an extension cord due to potential safety hazards.
This appliance should be installed in accordance with national wiring regulations. This manual acts as a
guide to explaining product features.
Symbols used in this Manual
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.
8 Air Conditioner
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Product Introduction
Product Introduction
Indoor Unit
Air filter
Signal receiver
Operation lamp
Air purifier lamp
Air outlet
ON/OFF button
Air inlet
Allergy filter
Operation Indication Lamps
• Operation lamp :
'Blue' lights up during Cooling / Healthy Dehumidification / Air Circulation Operation.
'Red' lights up during Heating Operation.
• Air purifier lamp :
'Green' lights up during Air Purifier Operation.
Owner's Manual 9
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Preparation Before Operation
Preparation Before Operation
How to insert the Batteries
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.
1. Always use/replace both batteries of same type.
2. If the system is not to be used for a long time, remove the
batteries to save their working life.
3. If the display screen of remote controller starts, fading
replace both of the batteries.
4. Use 2 AAA(1.5 volt) batteries.
Wireless Remote Controller Maintenance
1. Choose a suitable place where its safe & easy to reach.
2. Fix the holder to wall etc with the supplied
screws firmly.
3. Slide the remote controller inside the holder.
1. Remote controller should never be exposed to
direct sunlight.
2. Signal transmitter & receiver should always be
clean for proper communication. Use a soft
cloth to clean them.
3. In case some other appliances also get operated with remote control, change their position or consult
your serviceman.
Operating Method
1. The signal receiver is inside the unit.
2. Aim the remote controller towards the unit to operate it. There should not be any blockage in between.
10 Air Conditioner
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Preparation Before Operation
Wireless Remote Controller
The controls will look like the following.
Plasma button*: Purifies the air by
removing particles that enter the indoor
Floor heating mode button : Used to
start or stop the Floor Heating mode.
On/Off button: Turns the power on/off.
Indoor fan speed button: Adjusts the
fan speed.
°C / °F (5 s)
TIME (3 s)
Sleep mode auto button*: Sets the
sleep mode auto operation.
Temperature adjustment buttons:
Adjusts the room temperature when
cooling and heating.
Operation mode selection button*:
Selects the operation mode.
A C Cooling operation (A) / Auto operation
D B E or auto changeover (C) / Dehumidifying operation (D) / Heating operation
(B) / Air circulation (E)
Jet cooling/heating button*: Warms
up or cools down the indoor temperature within a short period of time.
Air flow direction button: Adjusts the
i j H I air flow direction vertically or horizontally.
Operation Mode
Cooling Operation
Auto Operation or Auto Changeover
Temperature display button: Displays
the room temperature.
m n z Timer button: Sets the current time
and the start / end time.
Healthy Dehumidification Operation
Heating Operation (Only heat pump)
Air Circulation
Functions button*: Adjusts the time
and sets the special functions.
J G P J: Auto clean / G: Operates energy
saving cooling / P: Adjusts the brightness of the indoor unit display
Set/clear button: Sets or cancels functions.
Reset button: Initialize the air conditioner settings.
* Some functions may not be supported, depending on the model.
Owner's Manual 11
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Preparation Before Operation
Setting the Current Time
1. Press the Set/Clear button for 3seconds. p
- The AM/PM icon flickers at the bottom of the display screen.
2. Press Time Setting buttons until the desired time is set. o
3. Press the Set/Clear button. p
Check the indicator for a.m. and p.m.
Air Flow Selection
n Make air flow selection according to what suits you.
n 2 Vane Mode will automatically change blowing pattern depending on the operating mode & situation.
Operating Mode
Cooling Mode
Heating Mode
1. When the room has become fully cool.
2. When 1 hour has passed since turning on the
air conditioner.
1. At start of operation or other times when the
room is not fully cooled.
1. Nomal Operation
1. At start or when air temperature is low.
Blowing Pattern
Using only upper air outlet.
Using upper & lower air outlet.
Using only upper is outlet.
n 1 Vane Mode is using only Upper air outlet
n If you want to change air flow mode, you ask to installer. ( Default is 2 Vane Mode )
Turn the breaker ON
Turning on the breaker closes the flap. (This is a normal procedure)
Tips for Saving Energy
• Be careful not to cool (heat) the room too much. Keeping the temperature setting at a moderate level
helps save energy.
• Cover windows with a blind or a curtain.
Blocking sunlight and air from outdoors increases the cooling (heating) effect.
• Clogged air filters cause inefficient operation and waste energy.
Clean them once in about every two weeks.
12 Air Conditioner
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Operating Instructions
Operating Instructions
Operation Mode
Press the ON/OFF button to turn the unit on.
The unit will respond with a beep.
Open the cover of the remote controller and press the OPERATION MODE button. Each
time the button is pressed, the operation mode is shifted in the direction of the arrow.
Auto Operation or
Auto Changeover
(Heat pump
model only)
Air Circulation
For cooling or heating operation set the desired indoor temperature by pressing the
Temperature adjustment buttons.
For cooling the temperature can be set within 18°C~30°C and for heating the temperature range is 16°C~30°C.
Set the fan speed with the remote controller. You can select the fan speed in five steps;
Super low, Low, Medium, High and Natural wind by pressing the FAN SPEED button.
Each time the button is pressed, the fan speed mode is shifted in the direction of the arrow.
Natural Wind
Natural wind
o For fresher feeling, press the FAN SPEED button and set to Natural wind mode.
In this mode, the wind blows like a natural breeze by automatically changing fan speed.
Owner's Manual 13
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Operating Instructions
Auto Changeover Operation (Single Model Only)
This operation is basically heating or cooling function of the air
conditioner. But during this operation the controller changes the
operation mode automatically to keep the temperature within
±2°C with respect to the setting temperature.
Auto Operation
This operations automatically selects cooling mode or heating mode
based on the room temperature. You can set desired temperature and
indoor fan speed. But operation mode will be decided by that of the
room with the first unit to be turned on.
Healthy Dehumidification Operation
If you select the dehumidification mode on the OPERATION MODE
SELECTION button, the product starts to run the dehumidification
function. It automatically sets the room temperature and the fan
speed to the best condition for dehumidification, based on the
Sensed current room temperature. During this operation, the
fan speed is automatically set according to the optimization
algorithm responding to the current room temperature status, so
that the room condition is kept healthy and comfortable even in vary
humid season.
In this case, the setting temperature is not displayed on the remote controller and you are not able to control the room temperature either.
14 Air Conditioner
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Operating Instructions
This operation circulates the air without cooling or heating. It can be
activated by pressing the OPERATION MODE SELECTION button.
Once the air circulation is activated you can select the fan speed by
pressing the FAN SPEED button.
: During this opertion , Operation lamp 'Blue' lights up.
Auto Clean Operation
Select Auto Clean Operation by the function setting button( c ).
Now whenever the unit is turned off, the indoor fan is still running for about 15 minutes internally without cooling or dehumidification operation. This function dries up any remains of
moisture & cleans the unit internally. If you push the Auto Clean
button again, this function is cancelled.
o During Auto Clean fuction, only ON/OFF button, PURIFIER button, AUTO
CLEAN button is used. During this operation, Operation Lamp 'Blue' lights up
and blink.
Air Purifier Operation
The sterilized ion generating system, Ion Generator, emits around
1.2 million ions, and catches hazardous substances floating
in the air, therefore proactively looking for and catching germs.
Air purifier operation can be started by pressing the PURIFIER
button on the remote controller.
Repressing it will deactivate the operation.
• This feature can be used in any operation mode and fan speed by pressing
the PURIFIER button.
• Separate purification operation is possible in stop condition. It is cancelled
by pressing PURIFIER button or ON/OFF button.
• If jet cool is operated in separate PURIFIER operation, purification and jet
cool is operated at once. In 30 minutes after the operation, it return to purification in cooling mode, high fan speed, 18 °C setting temperature.
Owner's Manual 15
Air Circulation Operation
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Operating Instructions
Energy-Saving Cooling Mode
Energy-saving cooling mode can save energy in cooling operation,
because it can operate efficiently by setting body-adaptation time
according to the change of time and temperature and adjusting
desired temperature automatically.
Energy Saving Cooling Mode operation can be started by pressing the ENERGY
SAVING COOLING MODE button on the remote controller.
Repressing it will deactivate the operation.
Display Temperature Unit
This function allows switching the display between
Celsius and Fahrenheit temperature unit.
Mode Lock setting
You can select operation mode for “cooling only” or “heating only”.
1. Press this o
2. Press this o
3. Press this o
q for 5 seconds or more, operation mode changed to “cooling only”.
q for 5 seconds or more, operation mode changed from “cooling only” to “heating
q for 5 seconds or more, “heating only” mode released.
- In “cooling only” or “heating only” mode, mode change cannot be choose.
Use other controller but wireless one, you can change operation mode.
16 Air Conditioner
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Operating Instructions
Timer Setting
1. Press ON or OFF button. m
2. Press Time Setting buttons until the desired time is set. o
3. Press the Set/Clear button. p
To cancel the timer setting
• If you wish to cancel all timer setting, press the Set/clear button.
• In order to cancel the timer settings individually, press the Timer button to select Reserved 'On' or
Reserved 'Off'. And then press the Set/Clear button aiming the remote controller at the signal receiver.
(the timer lamp on the display will go off)
Sleep Mode Operation
Press the SLEEP MODE AUTO button to set the time when you want the unit to stop
automatically. 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 hours.
• The sleep mode will operate indoor fan at super low speed in cooling mode and at low speed in heating
mode for pleasant sleep.
• In cooling mode or healthy dehumidification mode:
The setting temperature will rise automatically two times by 1°C over next consecutive 30 minutes (Maximum 2°C) for a comfortable sleep. This will be the final setting temperature as long as sleep mode is
Owner's Manual 17
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Operating Instructions
Upper Horizontal Vane Control
The Upper Horizontal Vane can be adjusted by using the remote controller.
1. Press the ON/OFF button to start the unit.
Each time the button is pressed, the air-flow
direction is changed in the direction of the arrow.
Auto Swing
Remote Controller
1 Step
2 Step
3 Step
1 Step
2 Step
3 Step
4 Step
5 Step
6 Step
Auto Swing
Indoor Unit
4 Step
5 Step
6 Step
Auto Swing
h Press the UPPER HORIZONTAL VANE CONTROL button once more during Auto Swing at the direction of airflow you want.
• Manually moving the Upper Horizontal Vane by hand could damage the mechanism.When the unit is shut
off, the the Upper Horizontal Vane will close the air outlet vent of the product.
h When you restart the unit, Upper Horizontal Vane will be located as you selected before.
Floor Heating Mode
The Floor Heating Mode can be controlled by using the remote controller.
1. Press the ON/OFF button to start the unit.
2. Open the cover of the remote controller.
Select heating operation.
3. Press the FLOOR HEATING MODE button.
4. To cancel the floor heating mode, press the FLOOR HEATING MODE
button again and unit will operate in previous mode.(Heating mode)
※ This mode will close the upper horizontal vane, concentrate the hot air to bottom discharge. ( But it can make noise,
so use it if you want quick heating.)
※ Floor Heating Mode is available only heating mode.(2 vane Mode)
※ While Auto Swing Mode is operating, upper vane will not close in Floor Heating Mode.
※ When upper vane is set other position except default, Floor Heating Mode work after 1 min.
Jet Cool Operation
Jet cool function can be used to cool the room quickly in hot summer.
When this function is turned on, the air conditioner Runs in cooling
operation mode with super high fan speed and 18°C setting temperature for fast and effective cooling.
• Jet cool function cannot be activated during Auto Changover
Operation or Heating Mode.
18 Air Conditioner
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Operating Instructions
Forced operation
Forced operation is used when the remote controller
can't be used. The operation will be started if the
ON/OFF button is pressed. If you want to stop the
operation, re-press the button.
• LED is turned on, off after 1or 2 s, when you push
the ON/OFF button.
Cooling Model
Operating mode
Indoor FAN Speed
Setting Temperature
Room Temp. ≥ 24°C
Heat pump Model
21°C ≤ Room Temp. < 24°C
Healthy Dehumidification
Room Temp. < 21°C
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
This function is useful in the situation of power failure.
When power regains after a failure this feature restore the previous operating condition
and the air conditioner will run in the same settings.
Filter Sign
• When Indoor Unit is OFF, Operation lamp 'Green' lights up after 2400 hours from the time of first operation of the unit.
• When filter is covered by dust, it will reduce cooling/ heating efficiency and accumulate more electric power.
Therefore, do clean the filter whenever cleaning time is expired.
• Remove the Filter Sign
After cleaning the filter, Press the p button of remote controller 3 times. Then the Filter sign is turned off.
Owner's Manual 19
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Maintenance and Service
Maintenance and Service
Before performing any maintenance, turn off the main power to the system, disconnect the circuit breaker and
unplug the power cord.
Indoor Unit
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 below. 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.
Allergy Filter
Remove the Allergy Filter behind the air filter and expose them
in direct sunlight for 2 hours.
And then insert these filters into original position.
Removal of Grille
1. Open the front grille by pulling forward
2. Then pull out the link of grille from groove in front panel.
3. Then pull out 2 hinges of grille from grooves in front panel.
Removal of Filters
1. Pull down the filter tab slightly
to remove the air filter.
2. Hold the tabs of the frame, and
remove the claws in 4 places.
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1,MFL67870304,영영 17. 7. 20. 영영 10:03 Page 21
Maintenance and Service
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.
Operation Tips!
Do not overcool the room.
• This is not good for the health
and wastes electricity.
Keep blinds or curtains
Keep the room temperature
• Do not let direct sunshine enter
the room when the air conditioner is in operation.
• Adjust the vertical and horizontal
airflow direction to ensure a uniform temperature in the room.
Make sure that the doors and
windows are shut tight.
Clean the air filter regularly.
Ventilate the room occasionally.
• Avoid opening doors and windows
as much as possible to keep the
cool air in the room.
• Blockages in the air filter reduce the
airflow and lower cooling and dehumidifying effects. Clean at least once
every two weeks.
• Since windows are kept closed, it is
a good idea to open them and ventilate the room now and ten.
Use high fan speed for effective and fast cooling.
Avoid spilling water or milk
at the top of the indoor unit.
Be cautious when your children are
opening the inlet Grille Because it
is locked by magnetic type.
• The unit gives its rated cooling
capacity when the fan speed is
• It may cause product failure.
• Sharp edges could cause injury.
Self-Diagnosis Function
This unit has an inbuilt error diagnosis capability. Error is displayed by 'RED' Operation Lamp.
Please contact your serviceman/dealer in such a situation
Ex ) CH 132
0.6 s
1.6 s
Operation lamp
Owner's Manual 21
Outdoor Unit
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Maintenance and Service
Troubleshooting Tips! Save time and money!
The air conditioner may be operating abnormally when:
Air conditioner does not
Air conditioner does not
cool as it
Possible Causes
What To Do
n The fuse is blown/circuit
breaker is tripped.
• Check the house fuse/circuit breaker box
and replace the fuse or reset the breaker.
n Power failure.
• 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.
n High voltage.
• If the voltage is unusually very high or low
the circuit Breaker will trip.
n Airflow is restricted.
• Make sure there are no curtains, blinds, or
furniture blocking the front of the air conditioner.
n The air filter is dirty.
• Clean the filter at least every 2 weeks.
See the Maintenance and Service section.
n The room may have been hot.
• When the air conditioner is first turned on,
you need to allow time for the room to cool
n Cold air is escaping.
• Check for open furnace floor registers and
cold air returns.
n Check the temperature settings.
• Make sure they are correct.
n There might be any heating
source in the room.
• Check and remove such source or turn it
off while using the air conditioner.
Call the service immediately in the following situations
1. Anything abnormal such as burning smell, loud noise etc. happen. Stop the unit and
turn the breaker off. Never try to repair by yourself or restart the system in such cases.
2. Connecting wire is too hot or damaged.
3. Error code is generated by self diagnosis.
4. Water leaks from indoor unit even if the humidity is low.
5. Any switch, breaker (safety, earth) or fuse fails to work properly
User must carry routine checkup & cleaning to avoid unit’s poor performance.
In case of special situation, the job must be carried out by service person only.
22 Air Conditioner
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