OWNER’S MANUAL

AIR CONDITIONER

Please read this manual carefully before operating your set and retain it for future reference.

TYPE : WALL MOUNTED

P/NO : MFL39817418

www.lge.com

A. Safety Precautions ..............................3

B. Electrical Safety...................................6

Temporary Use of an Adapter ...............6

Symbols used in this Manual.................6

C. Product Introduction...........................7

Indoor Units ...........................................7

Operation Indication Lamps ..................7

Outdoor Unit ..........................................7

D. Operating Instructions........................8

How to insert the Batteries ....................8

Wireless Remote Controller

Maintenance..........................................8

Operating Method..................................8

Wireless Remote Controller...................9

Operation Mode...................................10

Healthy Dehumidification Operation....11

Auto Operation

(Cooling Only Model)...........................11

Auto Changeover Operation

(Heat Pump Model) .............................11

Jet Cool/Heat Operation......................12

Auto Clean (Optional)..........................12

Energy-Saving Cooling Mode

(Optional).............................................13

Forced operation .................................13

Sleep Mode .........................................14

Setting the Current Time .....................14

Timer Setting .......................................14

Vertical / Horizontal Airflow Direction

Control (Optional) ................................15

Auto Restart Function..........................15

E. Maintenance and Service..................16

Indoor Unit...........................................16

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

Room Air Conditioner Ownerʼs Manual

TABLE OF CONTENTS

FOR YOUR RECORDS

Write the model and serial numbers here:

Model #

Serial #

You can find them on a label on the side of each unit.

Dealer's Name

Date Purchased

■ 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.

2 Room Air Conditioner

Safety Precautions

Safety Precautions

To prevent injury to the user or other people and property damage, the following instructions must be followed.

■ 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.

■ 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.

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.

• An charged capacitor can cause electrical shock.

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 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.

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.

• 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.

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.

When installing the unit, use the installation kit provided with the product.

• 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.

• Otherwise the unit may fall and cause severe injury.

• 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.

• Improper or loose connections can cause heat generation or fire.

Be sure to check the refrigerant to the used. Please read the label on the product.

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.

• Children may play with them and cause injury.

Don't use a power cord, a plug or a loose socket which is damaged.

Make sure to check that the power cable plug is not dirty, loose or broken and then only insert the plug completely.

• Dirty, loose or broken power plug can cause electric shock or fire.

Do not touch , operate, or repair the product with wet hands. Hold the plug by hand when taking out

• There is risk of electric shock or fire.

• 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.

• 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.

• Oxygen deficiency could occur and hence harm your health.

Do not allow water to run into electric parts. Install the unit away from water sources.

• 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 physical injury, electric shock, or product failure.

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.

• 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.

• Oxygen deficiency can occur and hence harm your health.

Turn the main power off and unplug the unit when cleaning or repairing the product.

• There is risk of electric shock.

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 product damage or failure, or unintended operation.

Do not place ANYTHING on the power cable.

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.

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.

• 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.

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

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.

Do not use the product for special purposes, such as preserving foods, works of art, etc. It is a consumer air conditioner, not a precision refrigeration system.

• There is risk of damage or loss of property.

Do not block the inlet or outlet of air flow.

• It may cause product failure.

Safety Precautions

Use a soft cloth to clean. Do not use harsh detergents, solvents or splashing water etc .

• There is risk of fire, electric shock, or damage to the plastic parts of the product.

Do not touch the metal parts of the product when removing the air filter.

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.

• A dirty filter reduces the efficiency.

• There is risk of personal injury.

• There is risk of personal injury and failure of product.

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.

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 .

• If air enters the refrigerant system, an excessively high pressure results, causing equipment damage or injury.

Replace the all batteries in the remote control with new ones of the same type.

Do not mix old and new batteries or different types of batteries.

• There is risk of fire or product failure.

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.

• Otherwise it can be harmfull for your health.

Do not recharge or disassemble the batteries. Do not dispose off batteries in a fire.

• They may burn or explode.

If the liquid from the batteries gets onto your skin or clothes, wash it well with clean water. Do not use the remote if the batteries have leaked.

• The chemicals in batteries could cause burns or other health hazards.

If you eat the liquid from the batteries, brush your teeth and see doctor. Do not use the remote if the batteries have leaked.

• The chemicals in batteries could cause burns or other health hazards.

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.

• This could harm to your health.

• It is not sanitary and could cause serious health issues.

Do not let the air conditioner run for a long time when the humidity is very high and a door or a window is left open.

• Moisture may condense and wet or damage furniture.

Use a firm stool or ladder when cleaning, maintaining or repairing the product at an height.

• Be careful and avoid personal injury.

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.

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

Air inlet

Front panel

ON/OFF button

Air filter

Signal receiver

Air outlet

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

Cooling Mode

: Lights up during Energy-Saving Cooling Mode Operation(Inverter Model only)

Timer

Defrost mode

: Lights up during timer operation.(non-Inverter Model)

Lights up during timer operation or sleep mode auto operation (Inverter Model only)

: Lights up during defrost mode or *hot start operation (Heat pump model only)

Power Display : Indicates the setting temperature and operation mode.

Operation mode

Cooling, heating,

Dehumidification

Mode

Jet

Cool/Heat

Energy-saving cooling mode

Test operation

Shape of display

Setting temperature

Auto clean

* 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

Drain hose

Owner's Manual 7

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 2AAA(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.

8 Room Air Conditioner

Operating Instructions

4

2

7

11

8

Wireless Remote Controller

The controls will look like the following.

Signal transmitter

5

6

14

ON

CANCEL

OFF SET

AUTO CLEAN

Operation Mode

Cooling Operation

1

3

10

9

12

16

17

13

15

Flip-up door

(opened)

Auto Operation or Auto Changeover

Healthy Dehumidification Operation

Heating Operation

• Cooling Model( ), Heat Pump Model( )

1. START/STOP BUTTON

Used to turn off/on the unit.

2. OPERATION MODE SELECTION BUTTON

Used to select the operation mode.

3. ROOM TEMPERATURE SETTING BUTTONS

Used to select the room temperature.

4. INDOOR FAN SPEED SELECTOR BUTTON

Used to select fan speed in four steps low, medium, high and CHAOS.

5. JET COOL/HEAT BUTTON

Used to start or stop the speed cooling/heating.

(It operates fan in super high speed)

6. CHAOS SWING BUTTON

Used to stop or start louver movement and set the desired up/down airflow direction.

7. ON/OFF TIMER BUTTONS

Used to set the time of starting and stopping operation.

8. TIME SETTING BUTTONS

Used to adjust the time.

9. TIMER SET/CANCEL BUTTON

Used to set and to cancel the timer operation.

10. SLEEP MODE AUTO BUTTON

Used to set sleep mode auto operation.

11. AIR CIRCULATION BUTTON(OPTIONAL)

Used to circulate the room air without cooling or heating.

ENERGY-SAVING COOLING MODE BUTTON

(OPTIONAL) For inverter type models

12. ROOM TEMPERATURE CHECKING BUTTON

Used to check the room temperature.

13. HORIZONTAL AIRFLOW DIRECTION CONTROL

BUTTON (OPTIONAL)

Used to set the desired horizontal airflow direction.

14. RESET BUTTON

Used prior to resetting time.

15. 2nd F BUTTON

Used prior to using modes printed in blue at the bottom of buttons.

16. AUTO CLEAN BUTTON(OPTIONAL)

Used to set auto clean mode.

In some models this button has a 2nd function of LED luminosity control.

17. ˚C TO ˚F SWITCHING BUTTON

Used to switch temperature reading from Centigrade to

Fahrenheit.

NOTE

To use the functions printed in blue at the bottom of the buttons press 2 nd F button first and then the required function button. Pressing the 2 nd F button activates the blue printed function of the respective button. To cancel the function press the 2nd F button again else it will automatically cancel if remains idle after 10 seconds.

Owner's Manual 9

Operating Instructions

Operation Mode

1

Press the START/STOP BUTTON to turn the unit on.

The unit will respond with a beep.

ON

1

3

4

2

2

Open the door 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.

Cooling

Auto

Changeover

Healthy

Dehumidification

Auto Operation (Cooling Only Model)

Auto Changeover (Heat Pump Model)

Heating

(Heat pump model only)

3

For cooling or heating operation set the desired indoor temperature by pressing the ROOM TEMPERATURE

SETTING BUTTONS.

For cooling the temperature can be set within 18°C~30°C

(64°F~86°F) and for heating the temperature range is

16°C~30°C(60°F~86°F).

To raise the temperature

To lower the temperature

4

Set the fan speed with the remote controller. You can select the fan speed in four steps-low, medium, high and CHAOS by pressing the INDOOR FAN SPEED SELECTOR BUTTON.

Each time the button is pressed, the fan speed mode is shifted.

CHAOS Air

Fan speed is on low.

Fan speed is on medium.

Fan speed is on high.

Natural wind by the CHAOS logic

❏ For fresher feeling, press the INDOOR FAN SPEED SELECTOR BUTTON selector and set to CHAOS mode.

In this mode, the wind blows like a natural breeze by automatically changing fan speed according to the CHAOS logic.

10 Room Air Conditioner

Operating Instructions

Healthy Dehumidification Operation

Healthy

Dehumidification

During 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 airflow volume to the best condition for dehumidification, based on the sensed current room temperature.

In this case, however, the setting temperature is not displayed on the remote controller and you are not able to control the room temperature either.

❏ During the healthy dehumidification function, the airflow volume 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 the very humid season.

To run the healthy dehumidification mode follow steps 1, and 2 and 4

(See operation mode)

Auto Operation (Cooling Only Model)

Auto

In this operation mode the actual setting temperature and the fan speed are automatically set by the electronic control logic based on the current room temperature. If you feel hot or cold press the temperature setting buttons respectively for more cooling or heating effect.

NOTE : You cannot set the actual setting temperature and the indoor fan speed in this operation mode. But you can use the Chaos swing in this operation.

If the system is not operating as desired, switch manually to another mode.

To run the auto operation follow steps 1, and 2. (See operation mode)

Auto Changeover Operation (Heat Pump Model)

Auto operation basically is 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

Changeover

To run this operation follow steps 1, 2, 3, and 4. (See operation mode)

Owner's Manual 11

Operating Instructions

Jet Cool/Heat 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(64°F) setting temperature for 30 minutes for fast and effective cooling.

Similarly, jet heat function (available only in some models) warms up the room quickly by operating at super high fan speed and 30°C(86°F) setting temperature for 60 minutes.

You can activate this operation by pressing the JET COOL BUTTON.

To change from jet cool mode to high fan speed cooling mode, press the JET COOL BUTTON or

INIDOOR FAN SPEED SELECTOR BUTTON or the ROOM TERPERATURE SETTING BUTTON again.

NOTE

• Jet cool function cannot be activated during heating or auto changeover operations.

• In case of Inverter, Art Cool and Art Cool Wide(non-Deluxe) model, you can use jet heat function by pressing JET COOL BUTTON for heating operation.

• Art Cool and Art Cool Wide models close the side discharges during jet cool/heat operation, for strong cooling and heating.

Auto Clean (Optional)

❏ During auto clean function, moistures left in indoor units after cooling operation or healthy dehumidification operation can be removed.

AUTO CLEAN

1. Press the AUTO CLEAN BUTTON to activate this function.

2. Now whenever the unit is turned off, the indoor fan is still running for about 30 minutes internally without cooling or dehumidification operation. Also the louver is closed.

3. This dries up any remains of moisture & cleans the unit internally.

4. If you press AUTO CLEAN BUTTON again during operation, this function is

NOTE

cancelled.

❏ During auto clean function, only START/STOP BUTTON, PLASMA BUTTON and AUTO CLEAN BUTTON can be used.

12 Room Air Conditioner

Operating Instructions

Energy-Saving Cooling Mode (Optional)

Energy-saving cooling mode can save energy in cooling and healthy dehumidification operation, because it can operate efficiently by setting body-adaptation time according to the change of time and temperature and adjusting automatically desired temperature.

1. Press the START/STOP BUTTON to start the unit.

2. Open the door on the remote controller.

Select cooling operation or healthy dehumidification operation.

3. Press the ENERGY-SAVING COOLING MODE BUTTON.

4. To cancel the energy-saving cooling mode, press the ENERGY-SAVING

COOLING MODEL BUTTON again and unit will operate in previous mode(Cooling or healty dehumidification mode).

Forced operation

Operation procedures when the remote control can't be used.

The operation will be started if the ON/OFF button is pressed.

If you want to stop operation, re-press the button.

ON/OFF button

Operating mode

Indoor FAN Speed

Heat pump Model

Cooling Model

Room Temp. ≥ 24°C(75.2°F) 21°C(69.8°F) ≤ Room Temp. < 24°C(75.2°F) Room Temp. < 21°C(69.8°F)

Cooling

High

Setting Temperature 22°C(71.6°F)

Cooling

High

22°C(71.6°F)

Healthy Dehumidification

High

23°C(73.4°F)

Heating

High

24°C(75.2°F)

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.

Owner's Manual 13

Operating Instructions

Sleep Mode

1. Press the SLEEP MODE AUTO BUTTON to set the time when you want the unit to stop automatically.

2. The timer is programmed in one-hour increments by pressing the SLEEP MODE AUTO BUTTON 1 to 7 times.

The sleep mode is available for 1 to 7 times.

To alter the time period in steps of 1 hour, press the SLEEP MODE AUTO BUTTON while aiming at air conditioner.

3. • (In case of non-Inverter Model)

Make sure the sleep mode LED lights up.

To cancel the sleep mode, press the SLEEP MODE AUTO BUTTON several times until the sleep mode LED lights off.

• (In case of Inverter Model)

Make sure the Timer LED lights up.

To cancel the sleep mode, press the SLEEP MODE AUTO BUTTON several times until the Timer LED lights off.

NOTE

• The sleep mode will operate indoor fan at slow speed in cooling mode and at medium speed in heating mode for pleasant sleep.

• Art Cool and Art Cool Wide (non-Deluxe) close the lower discharge partially in sleep mode for pleasant sleep.

In cooling mode or healthy dehumidification mode:

The setting temperature will rise automatically two times by 1°C(2°F) over next consecutive 30 minutes [2°C(4°F) in 1 hour] for a comfortable sleep. Now this will be the final setting temperature as long as sleep mode is functioning.

Setting the Current Time

1. Time can be set only when you press the RESET BUTTON. Having replacing the batteries, you should press the RESET BUTTON to reset the time. Press the Start/Stop button.

2. Press 2nd F button and check if icon is on.

3. Press the TIME SETTING BUTTONS until the desired time is set.

4. Press the TIME SET/CANCEL BUTTON.

CANCEL

SET

NOTE

Check the indicator for A.M. and P.M.

Timer Setting

1. Make sure to set current time correctly on the display of the remote controller.

2. Press 2nd F button.

3. Press the ON/OFF TIMER BUTTONS to turn timer on or off.

ON

OFF

4. Press the TIME SETTING BUTTONS until the desired time is set.

5. To set the selected time, press the TIMER SETTING BUTTONS aiming the remote controller at the signal receptor.

CANCEL

SET

To cancel the timer setting

Check if icon is off.

Press the TIMER CANCEL BUTTON aiming the remote controller at the signal receptor.

(The timer lamp on the air conditioner and the display will go off.)

CANCEL

SET

NOTE

Select one of the following four types of operation.

Delay off timer

14 Room Air Conditioner

Delay on timer Delay off and on timer Delay on and off timer

Vertical / Horizontal Airflow Direction Control (Optional)

Operating Instructions

The up/down airflow (Vertical airflow) can be adjusted by using the remote controller.

1. Press the START/STOP BUTTON to start the unit.

The left/right(Horizontal airflow) can be adjusted by using the remote control.

1. Press the START/STOP BUTTON to start the unit.

2. Press CHAOS SWING BUTTON.

3. The louvers will swing up & down automatically.

2. Press the HORIZONTAL AIRFLOW

DIRECTION BUTTON.

3. The louvers will swing left & right automatically.

4. To stop the louver at a desired angle, press again

4. To stop the louvers at a desired angle, press again.

NOTE

• By pressing the CHAOS SWING BUTTON the horizontal air flow 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 natural breeze.

• Always use the remote controller to adjust the up and down air flow direction. Manually moving the vertical air flow direction louver by hand could damage the mechanism.When the unit is shut off, the up/down airflow direction louver will close the air outlet vent of the system.

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.

NOTE

This feature is enabled by factory default setting, but you can disable it by pressing the ON/OFF button for 6 seconds. The unit will beep twice and the indicator lamp(2) will blink 4 times.

To enable it, press the button again for 6 seconds. The unit will beep twice and the indicator lamp(1) will blink 4 times.

ON/OFF button

Owner's Manual 15

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(104°F). It may cause deformation and discoloration.

• Volatile substances. They may damage the surface of the air conditioner.

Air Filters

The air filters behind the front panel / grill should be checked and cleaned once in every 2 weeks or more often if necessary. To remove the filters see the self explanatory diagrams for each model type. Clean the filters with a vacuum cleaner or warm soapy water. If dirt is not easily removed, wash with a solution of detergent in luke warm water. Dry well in shade after washing and reinstall the filters back in place.

Deodorizer Filters

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.

Powder

Gasoline

Removal of Filters

Open the front panel as shown.

Then pull the filter tab slightly forward to remove the air filter.

After removing the air filter deodorizer filter by slightly pulling forward.

Deodorizer filter

16 Room Air Conditioner

Maintenance and Service

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.

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 blinds or curtains closed.

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.

Ventilate the room occasionally.

Since windows are kept closed, it is a good idea to open them and ventilate the room now and ten.

Keep the room temperature uniform.

Adjust the vertical and horizontal airflow direction to ensure a uniform temperature in the room.

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( ) will blink in case if thermistor fails.

Please contact your serviceman/dealer in such a situation

Error Display LED ( )

(once)

Check Point

• Indoor room temperature thermistor open/short.

• Indoor pipe temperature thermistor open/short.

3 sec 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 Possible Causes What To Do

Air conditioner does not start

Air conditioner does not cool as it should

■ The air conditioner is unplugged.

■ The fuse is blown/circuit breaker is tripped.

■ Power failure.

■ High voltage.

■ Airflow is restricted.

■ The air filter is dirty.

■ The room may have been hot.

■ Cold air is escaping.

■ Check the temperature settings.

■ There might be any heating source in the room.

• Make sure the air conditioner plug is pushed completely into the outlet.

• Check the house fuse/circuit breaker box and replace the fuse or reset the breaker.

• If power failure occurs, turn the mode control to OFF.

When power is restored, wait 3 minutes to restart the air conditioner to prevent tripping of the compressor overload.

• If the voltage is unusually very high or low the Circuit Breaker will trip.

• Make sure there are no curtains, blinds, or furniture blocking the front of the air conditioner.

• Clean the filter at least every 2 weeks.

See the Maintenance and Service section.

• When the air conditioner is first turned on, you need to allow time for the room to cool down.

• Check for open furnace floor registers and cold air returns.

• Make sure they are correct.

• 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

LGEUS

LG Electronics, Air conditioning Division

1000 Sylvan Ave., Englewood Cliffs, NJ 07632

LGECI

LG Electronics Canada Inc.

550 Matheson Blvd. East, Mississauga, Ontario, L4Z 4G3

LG Customer Information Center

888-865-3026

888-865-3026

USA, press #2  for PTAC, TTW

USA, press #3  for DFS, Multi V

1-888-LG-Canada

CANADA

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www.lge.com