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Owner’s Manual 

11

Maintenance and Service

ENGLISH

Before you call for service...

Check the following points before requesting repairs or service.... If the malfunction persists,
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.

• 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.

• Are the batteries

depleted?

• Are the batteries

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

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.

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

Summary of Contents for ARNU07GTUB4

Page 1: ...g your set and retain it for future reference Ceiling Cassette 1Way Art Type Original instruction ARNU07GTUB4 ARNU09GTUB4 ARNU12GTUB4 ARNU18GTTB4 ARNU24GTTB4 OWNER S MANUAL AIR CONDITIONER Copyright 2018 LG Electronics Inc All Rights Reserved ENGLISH BAHASA INDONESIA Tiếng Việt ...

Page 2: ...t 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...

Page 3: ...ation may cause fire or electric shock Use the correctly rated breaker or fuse There is risk of fire or electric shock Do not modify or extend the power cable There is risk of fire or electric shock Do not install remove or re install the unit by yourself customer There is risk of fire electric shock explosion or injury Be cautious when unpacking and installing the product Sharp edges could cause ...

Page 4: ...one or turn switches on or off There is risk of explosion or fire If strange sounds or small or smoke comes from product Turn the breaker off or disconnect the power supply cable There is risk of electric shock or fire Stop operation and close the window in storm or hurricane If possible remove the product from the window before the hurricane arrives There is risk of property damage failure of pro...

Page 5: ...ut anyting on the product outdoor units There is risk of personal injury and failure of product Always insert the filter securely Clean the filter every two weeks or more often if necessary A dirty filter reduces the efficiency of the air conditioner and could cause product malfunction or damage Do not insert hands or other objects through the air inlet or outlet while the product is operated Ther...

Page 6: ...cts Such usage could damage the items 4 While using the remote control refer the user manual of that particular remote controller 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 ...

Page 7: ...orced operation mode the operating conditions are automatically set as follows During forced operation the initial mode continues In case the power comes on again after a power failure auto restarting operation is the function to operate procedures automatically to the previous operating conditions Cooling Model Heat pump Model Room temperature set temperature 2 C Room temperature set temperature ...

Page 8: ...dirt from the air filter using a vacuum cleaner or washing with water o If dirt is conspicuous wash with a neutral detergent in lukewarm water o If hot water 50 C or more is used it may be deformed 4 After washing with water dry well in the shade o Do not expose the air filter to direct sunlight or heat from a fire when drying it 5 Install plasma filter and air filter CAUTION Air Filter The air fi...

Page 9: ...cuum cleaner or washing with water o If dirt is conspicuous wash with a neutral detergent in lukewarm water o If hot water 50 C or more is used it may be deformed 4 After washing with water dry well in the shade o Do not expose the air filter to direct sunlight or heat from a fire when drying it 5 Install plasma filter and air filter CAUTION Air Filter The air filters behind the front grille shoul...

Page 10: ...d install it in the indoor unit 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 connected 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 is in operation K...

Page 11: ...y 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 ...

Page 12: ...12 Indoor Unit ...

Page 13: ...PT LG Electronics Indonesia Gandaria 8 Office Tower Lt 29 BC 31 ABCD Jl Sultan Iskandar Muda Kebayoran Lama Utara Kebayoran Lama Jakarta Selatan DKI Jakarta Raya Indonesia ...

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