OWNER’S MANUAL
AIR CONDITIONER
Please read this manual carefully before operating
your set and retain it for future reference.
TYPE : WALL MOUNTED
www.lg.com
P/NO : MFL42132808
Room Air Conditioner Ownerʼs Manual
TABLE OF CONTENTS
A. Safety Precautions ..............................3
B. Electrical Safety...................................6
Temporary Use of an Adapter ...............6
Temporary Use of an Extension Cord ...6
Symbols used in this Manual.................6
C. Product Introduction...........................7
Indoor Units ...........................................7
Operation Indication Lamps ..................8
Outdoor Unit ..........................................8
D. Operating Instructions........................9
How to insert the Batteries ....................9
Wireless Remote Controller
Maintenance..........................................9
Operating Method..................................9
Remote Control Operation ..................10
Operation Mode...................................11
E. Maintenance and Service..................15
Indoor Unit...........................................15
Outdoor Unit ........................................17
Operation Tips!....................................17
Self-Diagnosis Function ......................17
Troubleshooting Tips!
Save time and money!.........................18
Call the service immediately in the
following situations ..............................18
2 Room Air Conditioner
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.
Safety Precautions
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 terminal.
• There is a risk of electric shock.
For electrical work, contact the dealer, seller,
a qualified electrician, or an Authorized
Service Center. Do not disassemble or repair
the product by yourself.
• There is risk of fire or electric shock.
Use the correctly rated breaker or fuse.
• There is risk of fire or electric shock.
Do not install the product on a defective
installation stand. Be sure that the
installation area does not deteriorate with
age.
• It may cause product to fall.
Do not use a defective or underrated
circuit breaker. Use the correctly rated
breaker and fuse.
• There is risk of fire or electric shock .
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.
• There is risk of fire or electric shock.
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.
• There is risk of fire or electric shock.
Never install the outdoor unit on a
moving base or a place from where it
can fall down.
• The falling outdoor unit can 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.
• An charged capacitor can cause electrical
shock.
• Otherwise the unit may fall and cause severe
injury.
Do not use a multi consent. Always use
this appliance on a dedicated cicuit and
breaker.
• Otherwise it can cause electric shock or fire.
Install the panel and the cover of control
box securely.
• There is risk of fire or electric shock due to
dust , water etc.
For installation, removal or reinstall ,
always contact the dealer or an
Authorized Service Center.
• There is risk of fire, electric shock, explosion,
or injury.
When the product is soaked (flooded or
submerged) in water , contact an
Authorized Service Center for repair
before using it again.
• There is risk of fire or eletric shock.
Be sure to use only those parts which
are listed in the svc parts list. Never
attempt to modify the equipment.
• The use of inappropriate parts can cause an
electrical shock, excessive heat generation or
fire.
Owner's Manual 3
Safety Precautions
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 thraw 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 the
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.
Do not place a heater or other heating
appliances near the power cable.
Do not allow water to run into electric
parts. Install the unit away from water
sources.
• There is risk of fire and electric shock.
Do not use the product in a tightly closed
space for a long time. Perform ventilation
regularly.
• There is risk of fire, failure of the product, or
electric shock.
Do not open the front grille of the product
during operation. (Do not touch the
electrostatic filter, if the unit is so equipped.)
• There is risk of electric shock or fire.
Do not store or use or even allow
flammable gas or combustibles near the
product.
• There is risk of fire.
If strange sounds, smell or smoke comes
from product.Immediately turn the breaker
off or disconnect the power supply cable.
• Oxygen deficiency could occur and hence
harm your health.
• There is risk of physical injury, electric shock,
or product failure.
• There is risk of electric shock or fire.
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
product.
When the product is not to be used for a
long time, disconnect the power supply
plug or turn off the breaker.
• Oxygen deficiency can occur and hence harm
your health.
Take care to ensure that nobody
especially kids could step on or fall onto
the outdoor unit.
• This could result in personal injury and
product damage.
• There is risk of electric shock.
Take care to ensure that power cable
could not be pulled out or damaged
during operation.
• There is risk of fire or electric shock.
Do not plug or unplug the power supply plug to turn the unit
ON/OFF .
• There is risk of fire or electric shock.
Two or more people must lift and
transport the product.
• Avoid personal injury.
Keep level even when installing the
product.
• To avoid vibration or noise.
4 Room Air Conditioner
• There is risk of product damage or failure, or
unintended operation.
Do not place ANYTHING on the power
cable.
• There is risk of fire or electric shock.
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.
Do not install the product where it will be
exposed to sea wind (salt spray) directly.
• It may cause corrosion on the product.
Do not install the product where the noise
or hot air from the outdoor unit could
damage or disturb the neighborhoods.
• It may cause a problem for your neighbors
and hence dispute.
Install the drain hose to ensure that the
condensed water is drained away properly.
• A bad connection may cause water leakage.
Always check for gas (refrigerant)
leakage after installation or repair of
product.
• Low refrigerant levels may cause failure of
product.
Safety Precautions
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 touch the metal parts of the
product when removing the air filter.
• There is risk of personal injury.
Do not insert hands or other objects
through the air inlet or outlet while the
product is operating.
• There are sharp and moving parts that could
cause personal injury.
Do not tilt the unit when removing or
uninstalling it.
• The condensed water inside can spill .
Dismantling the unit, treatment of the
refrigerant oil and eventual parts should
be done in accordance with local and
national standards.
Do not block the inlet or outlet of air flow.
• It may cause product failure.
Do not step on or put anyting on the
product. (outdoor units)
• There is risk of personal injury and failure of
product.
Be cautious when unpacking and
installing the product.
• Sharp edges could cause injury.
Do not mix air or gas other than the
specified refrigerant used in the system .
• Moisture may condense and wet or damage
furniture.
Use a firm stool or ladder when cleaning,
maintaining or repairing the product at
an height.
• Be careful and avoid personal injury.
• There is risk of fire, electric shock, or damage
to the plastic parts of the product.
Always insert the filter securely after
cleaning. Clean the filter every two weeks
or more often if necessary.
• A dirty filter reduces the efficiency.
If the refrigerant gas leaks during the
repair, do not touch the leakaing
refrigerant gas.
• The refrigernat gas can cause frostbite (cold
burn)
If the refrigerant gas leaks during the
installation, ventilate the area immediately.
• If air enters the refrigerant system, an
excessively high pressure results, causing
equipment damage or injury.
• Otherwise it can be harmfull for your health.
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 product failure.
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.
Use a soft cloth to clean. Do not use
harsh detergents, solvents or splashing
water etc .
Do not expose your skin or kids or
plants to the cool or hot air draft.
• This could harm to your health.
• They may burn or explode.
Do not drink the water drained from the
product.
• It is not sanitary and could cause serious
health issues.
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.
• The chemicals in batteries could cause
burns or other health hazards.
• The chemicals in batteries could cause
burns or other health hazards.
Owner's Manual 5
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.
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 guide acts as a
guide to help to explain 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.
NOTE
This symbol indicates special notes.
6 Room Air Conditioner
Product Introduction
Product Introduction
Here is a brief introduction of the indoor and outdoor units. Please see the information specific to your
indoor unit type.
Indoor Units
Standard Split Type
Display panel LED indicators
Air inlet
Grille tab
Plasma filter (Optional)
Front grille
ON/OFF button
Air filter
Air outlet
Signal
receiver
Flap
(Horizontal blade)
Louvers
(Vertical blades)
Art Cool Type
Display panel LED indicators
Front panel
Signal receiver
Plasma filter
Air filter
ON/OFF button
Power cord
Air discharge
Art Cool Type Wide
Display panel LED indicators
Plasma filter
Air inlet
Front panel
Power cord
Air filter
Signal receiver
ON/OFF button
Air discharge
Owner's Manual 7
Product Introduction
Art Cool Deluxe(Type 1)
Display panel LED indicators
Art Cool Deluxe(Type 2)
Display panel LCD indicators
Air inlet
Air filter
Air inlet
Plasma filter
Plasma filter
Air filter
Air discharge
Air discharge
Front panel
Power cord
ON/OFF button
Signal receiver
Front panel
Power cord
Signal receiver
ON/OFF button
Operation Indication Lamps
On/Off
: Lights up during the system operation, error code and auto restart setting.
Sleep mode
: Lights up during sleep mode auto operation.(non-Inverter Model)
Energy-Saving : Lights up during Energy-Saving Cooling Mode Operation(Inverter Model only)
Cooling Mode
Plasma
: The function illustrates its dynamic mode by using a multiple lighting system.
Timer
: Lights up during timer operation.(non-Inverter Model)
Lights up during timer operation or sleep mode auto operation (Inverter Model only)
Defrost mode : Lights up during defrost mode or *hot start operation (Heat pump model only)
OUT
DOOR
Outdoor unit
operation
: Lights up during outdoor unit operation. (Cooling model only)
Power Display : Indicates the setting temperature and operation mode.
Dust Indicator : Lights up to indicate the time of cleaning the plasma filter. (Optional)
Operation Cooling, heating,
mode Dehumidification Standard
Mode
Auto operation mode
Too hot
Hot
Comfortable
Cold
Too cold
Jet
Test
Energy-saving
Cool/Heat cooling mode operation
Auto
clean
Shape of
Setting
display temperature
* 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.
Outdoor Unit
Air intake vents
Connecting
wires
Refrigerant pipes
Air outlet vents
Base plate
8 Room Air Conditioner
Drain hose
Operating Instructions
Operating Instructions
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.
NOTE
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.
NOTE
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.
Owner's Manual 9
Operating Instructions
Remote Control Operation
The remote control transmits the signals to the system.
1
3
4
8
2
7
5
6
1. OPERATION DISPLAY
Displays the operation conditions.
2. CHAOS SWING BUTTON
Used to stop or start louver movement and set
the desired up/down airflow direction
3. OPERATION MODE SELECTION BUTTON
Used to select the operation mode.
4. OFF TIMER BUTTON
Used to set the time of stopping opertion.
5. START/STOP BUTTON
Operation starts when this button is pressed, and
stops when the button is pressed again.
6. ROOM TEMPERATURE SETTING BUTTONS
7. INDOOR FAN SPEED SELECTION BUTTON
Used to set the time of starting and stopping
operation.
8. JET COOL
Used to start or stop the speed cooling (Speed
cooling operates super high fan speed ing
cooling mode.)
(1) Operation Mode
(2) Operation Procedure
2
4
1
3
10 Room Air Conditioner
Operating Instructions
Operation Mode
Cooling Operation
Healthy Dehumidification Operation Mode
This mode dehumidifies without overcooling.
1
Press the START/STOP BUTTON to
turn the unit on.
The unit will respond with a beep.
2
Select Cooling Operation.
Press the Operation Mode Selection Button.
Each time the button is pressed, the operation mode is
shifted in the arrow direction.
TEMP.
OFF
TIME
TEMP.
OFF
hr.
TIME
TEMP.
OFF
hr.
Cooling
TIME
TEMP.
OFF
hr.
Healthy
Dehumidification
TIME
hr.
Heating
(Heat pump model only)
TEMP.
OFF
TIME
hr.
Cooling
3
TEMP.
OFF
TIME
hr.
Healthy
Dehumidification
Set the temperature lower than the room temperature.
• The temperature can be set within a range of
18°C~30°C by 1°C
TEMP.
OFF
TIME
To raise the temperature
hr.
To lower the temperature
4
Set the fan speed.
• Select the fan speed in four steps-low, medium, high or CHAOS.
• Each time the button is
pressed, the fan speed
TEMP.
mode is shifted.
OFF TIME hr.
• The display shows high
fan speed.
Natural wind by the CHAOS logic
o For more fresh feeling than other fan speed, press the Indoor Fan Speed Selector and set to CHAOS mode. In this
mode, the wind blows like natural breeze by automatically changing fan speed according to the CHAOS logic.
During Healthy Dehumidification Operation:
o If you select the dehumidification mode on the operation selection button, the airconditioner starts to run the
dehumidification function, automatically setting 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 in
the remote control 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 and makes the room condition healthy and comfortable even in
the high humidity season.
Owner's Manual 11
Operating Instructions
Heating Operation(Heat pump model only)
1
Press the Start/Stop button. The unit
will respond with a beep.
2
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.
TEMP.
OFF
TIME
hr.
TEMP.
OFF
TIME
hr.
Cooling
3
TEMP.
OFF
TIME
TEMP.
OFF
hr.
Healthy
Dehumidification
TIME
hr.
Heating
(Heat pump model only)
Set the temperature higher than the room temperature.
The temperature can be set within a range of 16°C~30°
in 1°C increments.
TEMP.
OFF
TIME
To raise the temperature
hr.
To lower the temperature
4
Set the fan speed again with the door of the
remote control 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.
Timer control Setting
OFF TIMER CONTROL SETTING
Press the OFF Time Button.
TEMP.
OFF
TIME
hr.
1. Press the OFF Time Button.
2. Check the OFF Time LED of the room air conditioner.
3. The Timer is programmed by 1 hour each pressing
the OFF Time button from 1 hour to 7 hours.
12 Room Air Conditioner
Operating Instructions
Jet Cool Operation
TEMP.
OFF
TIME
1
Press the Start/Stop button.
The unit will respond with a beep.
2
Press the Jet Cool button to operate the speed cooling
mode and the unit will operate in super high fan speed
on cooling mode for 30 minutes.
3
To cancel the Jet Cool mode, press the Jet Cool button
again or the fan speed button or the room temperature
setting button and the unit will operate in high fan
speed on cooling mode.
hr.
or
or
or
NOTE
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 18°C. It is especially used to cool the
room temp. in the shortest time in a hot summer. In heat pump mode the JET COOL function is not
available.
o In order to return to the normal cooling mode from the JET COOL mode, you just press either the
operation mode selection button, airflow volume selection or temp. setting button or the JET COOL
button again.
Owner's Manual 13
Operating Instructions
Vertical Airflow Direction Control
The up/down airflow (Vertical Airflow) can be adjusted
by using the remote control.
1. Press the Start/Stop button to start the unit.
2. Press Chaos Swing button and the louvers will swing
up and down. Press the Chaos Swing button again
to set the vertical louver at the desired airflow
direction.
NOTICE
If you press the CHAOS swing button, the
horizontal airflow direction is changed
automatically based on the CHAOS algorithm to
distribute the air in the room evenly and at the
same time to make the human body feel most
comfortable, as if enjoying a natural breeze.
Always use the remote control to adjust the
up/down airflow direction. Manually moving the
vertical airflow direction louver by hand, could
damage the air conditioner.
When the unit is shut off, the up/down airflow
direction louver will close the air outlet vent of the
system.
Horizontal Airflow Direction Control
Adjust the horizontal airflow direction by manually moving the
horizontal airflow direction louver by hand.
Forced Operation
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.
Cooling
Model Room Temp. 24 C
Heat pump Model
21 C Room Temp. < 24 C Room Temp. < 21 C
Operating mode
Cooling
Cooling
Healthy Dehumidification
Indoor FAN Speed
High
High
High
High
Setting Temperature
22 C
22 C
23 C
24 C
Heating
ON/OFF
button
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, open the front panel upward and Press the power button let it be pressed
for about 3 seconds.
If you want to stop the operation, re-press the button.
14 Room Air Conditioner
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.
Pow
d er
G a s o li n e
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 (Optional)
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.
Deodorizer Filters, Virus & Allergy Filters
(Optional)
Remove the deodorizer filters behind the air filter and expose
them in direct sunlight for 2 hours.
And then insert these filters into original position.
Removal of Filters
1. Art Cool Type :
Pull down the grille bottom, after lifting out the filter tab a bit and take the filter out slowly. Remove the
plasma filter as shown. After cleaning and drying well reinstall the filter and grille by matching the hook.
Front panel hook
Hookhanger
Front panel
Air filter
Plasma
filter
Air filter
2. Art Cool Type Wide :
The procedure of removal of filters is same as in Art Cool Type model as shown above.
Don't touch this plasma filter within 10 seconds after opening the inlet grille, it may cause an electric shock.
Owner's Manual 15
Maintenance and Service
3. Deluxe (Type 1):
Open the upside of the panel and lift it up as shown. The hooks of the panel will come off. Remove the
air filters. Then pull out the plasma filter
Plasma filter
Front panel
Panel hook
After cleaning and drying well reinstall the filters in their original position.
4. Deluxe (Type 2):
Open the front panel as shown.
Then pull the filter tab slightly forward to remove the air filter.
After removing the air filter remove the plasma and deodorizer filter by slightly pulling forward.
Plasma filter
Front panel
How to use the front panel
1. Front panel closing
Move the link upward and close the front panel.
2. Front panel removing
Raise the link up to hook hanger and remove
front panel forward.
5. Standard Split Type : Two different methods to open the front panel based on types of air
conditioner as below ;
Type 1: Open the front panel as shown.
Then pull the filter tab slightly forward to remove the air filter.
After removing the air filter remove the plasma and deodorizer filter by slightly pulling forward.
Deodorizer�
filter
Plasma filter
16 Room Air Conditioner
Maintenance and Service
Type 2: Pull the front panel from both sides as shown.
Then pull the filter tab slightly forward to remove the filter. After removing the air filter remove
the plasma and triple deodorizer filter by slightly pulling forward.
Deodorizer�
filter
Plasma filter
Don't touch this plasma filter within 10 seconds after opening the inlet grille, it may cause an electric shock.
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.
NOTE
Dirty or clogged coils will reduce the operating efficiency of the system and cause higher operating costs.
Operation Tips!
Do not overcool the room.
Keep blinds or curtains
closed.
This is not good for the health and
wastes electricity.
Make sure that the
doors and windows
are shut thight.
Avoid opening doors and
windows as much as
possible to keep the cool
air in the room.
Keep the room temperature
uniform.
Do not let direct sunshine enter
the room when the air conditioner
is in operation.
Clean the air filter
regularly.
Blockages in the air filter
reduce the airflow and
lower cooling and
dehumidifying effects.
Clean at least once every
two weeks.
Adjust the vertical and horizontal
airflow direction to ensure a
uniform temperature in the room.
Ventilate the room
occasionally.
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.
The unit gives its rated
cooling capacity when the
fan speed is high.
Self-Diagnosis Function
This unit has an inbuilt error diagnosis capability. Unit LED(
Please contact your serviceman/dealer in such a situation
Error Display LED (
(once)
3 sec
)
) will blink in case if thermistor fails.
Check Point
• Indoor room temperature thermistor open/short.
• Indoor pipe temperature thermistor open/short.
3 sec
3 sec
Owner's Manual 17
Maintenance and Service
Troubleshooting Tips! Save time and money!
The air conditioner may be operating abnormally when:
Problem
Air
conditioner
does not start
Air
conditioner
does not cool
as it should
Possible Causes
What To Do
n The air conditioner is
unplugged.
• Make sure the air conditioner plug is
pushed completely into the outlet.
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
down.
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. Main power cord 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 unitʼs poor performance.
In case of special situation, the job must be carried out by service person only.
18 Room Air Conditioner
.
19
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P o wd
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