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Maintenance and Service

12

Indoor Unit

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Check the following points before requesting repairs or service.... If the malfunction persist,
please contact your dealer.

Troubleshooting Tips! Save time and money!

• Have you made a

mistake in timer
operation?

• Has the fuse blown

or has the circuit
breaker been
tripped?

• Check that this is not

a damp smell exuded
by the walls, carpet,
furniture or cloth
items in the room.

• Condensation occurs

when the airflow from
the air conditioner
cools the warm room
air.

• This is the protector

of the mechanism.

• Wait about three

minutes and
operation will begin.

The air conditioner

does not operate.

The room has a

peculiar odor. 

It seems that

condensation is

leaking from the air

conditioner.

Air conditioner does

not operate for about

3 minutes when

restart.

Does not cool or heat

effectively.

The air conditioner

operation is noisy.

Crack sound is

heard.

Remote control

display is faint, or no

display at all.

• Is the air filter dirty?

See air filter cleaning
instructions.

• The room may have

been very hot when
the room air
conditioner was first
turned on. Allow time
for it to cool down.

• Has the temperature

been set incorrectly?

• Are the indoor unit's

air inlet or outlet vents
obstructed?

• For a noise that

sounds like water
flowing.

-This is the sound of

freon flowing inside
the air conditioner
unit.

• For a noise that

sounds like the
compressed air
releasing into
atmosphere.

-This is the sound of

the dehumidifying
water being
processed inside the
air conditioning unit.

• This sound is generated

by the expansion/
constriction of the front
panel, etc. due to
changes of
temperature.

• Cleaning the filter,

press the Timer button
and 

button of wired

remote controller at
the same time for 3
sec.

• Are the batteries

depleted?

• Are the batteries

inserted in the
opposite (+) and (-)
directions? 

WATER RESISTANT: The outdoor side of this appliance is WATER RESISTANT.

The indoor side is not water resistant and should not be exposed to
excess water.

NOTICE

Filter sign lamp

(LED) is ON.

Before you call for service...

Summary of Contents for ARNU073SER2

Page 1: ...03018 www lg com http www lghvac com OWNER S MANUAL AIR CONDITIONER Please read this manual carefully before operating your set and retain it for future reference TYPE ART COOL Mirror Type ENGLISH FRANÇAIS ESPAÑOL ...

Page 2: ...ng 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 ...

Page 3: ...risk of fire or electric shock Install the panel and the cover of control box securely There is risk of fire or electric shock Always install a dedicated circuit and breaker Improper wiring or installation may cause fire or electric shock Use the correctly rated breaker or fuse There is risk of fire or electric shock Safety Precautions Do not modify or extend the power cable There is risk of fire ...

Page 4: ...he product from time to time when operating it together with a stove etc There is risk of fire or electric shock Turn the main power off when cleaning or maintaining the product There is risk of electric shock Do not plug or unplug the power supply plug during operation There is risk of fire or electric shock Do not touch operate the product with wet hands There is risk of fire or electrical shock...

Page 5: ... 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 block the inlet or outlet of air flow It may cause product failure Use a soft cloth to clean Do not use harsh detergents solvents etc There is risk of fire electric shock or damage to the plastic parts of the product Do n...

Page 6: ...recision devices food pets plants and art objects Such usage could damage the items 1 Do not touch the metal parts of the unit when removing the filter Injuries can occur when handling sharp metal edges 2 Do not use water to clean inside the air conditioner Exposure to water can destroy the insulation leading to possible electric shock 3 When cleaning the unit first make sure that the power and br...

Page 7: ...er operation or sleep mode auto operation Defrost mode Power Display Indicates the setting temperature and operation mode Cooling heating auto operation dehumidification mode Lights up during defrost mode or hot start operation Heat pump model only 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 hea...

Page 8: ... screen 2 Set temperature button 3 Wireless remote controller Receiver Some kind of product could not receive wireless signal 4 Ventilation button 5 Operation mode selection button 6 Sub function button 7 Function setting button 8 Exit button 9 On Off button 10 Room temperature button 11 Fan speed button 12 Air flow button 13 Reservation Time setting button 14 Setting Cancel button 15 Up Down Left...

Page 9: ...inosity 6 Smart clean button optional Used to start or stop smart clean 7 Clear all button Used to clear all timer 8 Room temperature setting button Used to select the room temperature 8 ON OFF button Used to turn off on the unit 10 Indoor fan speed selection button Used to select fan speed in four steps low medium high and chaos 11 Auto swing button Used to stop or start louver movement and set t...

Page 10: ...ilters 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 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 Gasoline Powder Removal of Filters Two differen...

Page 11: ... the indoor unit Refer to page 10 for cleaning it Check that the air inlet and outlet of the indoor outdoor unit are not blocked Check that the ground wire is connected correctly It may be connect to the indoor unit side Do not overcool the room This is not good for the health and wastes electricity Keep blinds or curtains closed Do not let direct sunshine enter the room when the air conditioner i...

Page 12: ...faint or no display at all Is the air filter dirty See air filter cleaning instructions The room may have been very hot when the room air conditioner was first turned on Allow time for it to cool down Has the temperature been set incorrectly Are the indoor unit s air inlet or outlet vents obstructed For a noise that sounds like water flowing This is the sound of freon flowing inside the air condit...

Page 13: ...ng contractor of your product as warranty service will be provided by them 2 If you have service issues that have not been addressed by the contractor please call 1 888 865 3026 CANADA Service call Number 888 LG Canada 888 542 2623 ...

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