background image

Maintenance and Service

14

Indoor Unit

Before you call for service...

?

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.

Summary of Contents for MFL42803013

Page 1: ...NO MFL42803013 www lg com OWNER S MANUAL AIR CONDITIONER Please read this manual carefully before operating your set and retain it for future reference TYPE Ceiling Cassette 1Way ENGLISH FRANÇAIS ESPAÑOL ...

Page 2: ... 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 ...

Page 3: ...t to do Be sure to follow the instruction WARNING Installation Do not use a defective or underrated circuit breaker Use this appliance on a dedicated circuit There is risk of fire or electric shock For electrical work contact the dealer seller a qualified electrician or an Authorized Service Center Do not disassemble or repair the product There is risk of fire or electric shock Always ground the p...

Page 4: ...oduct Be sure the installation area does not deteriorate with age If the base collapses the air conditioner could fall with it causing property damage product failure and personal injury 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 Do not place a heater ...

Page 5: ...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 product or electric shock Do not open the inlet grill 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 When the ...

Page 6: ... where it will be exposed to sea wind salt spray directly It may cause corrosion on the product Corrosion particularly on the condenser and evaporator fins could cause product malfunction or inefficient operation 90 When the product is not 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 Take care to...

Page 7: ...h the metal parts of the product when removing the air filter They are very sharp There is risk of personal injury Wax Thinner Do not step on or put 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...

Page 8: ...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 9: ...t temperature button It will set not room temperature but outlet air temperature 3 Fan speed button Fan Speed have 3 Steps Middle and Low step is same 4 ON OFF button 5 Opration mode selection button 6 Wireless remote controller receiver Some products don t receive the wireless signals 7 Air flow button 8 Subfunction button 9 Function setting button 10 Ventilation button 11 Reservation 12 Up down ...

Page 10: ...sity 6 Smart Clean button Optional Used to start or stop smart clean 7 Clean button Used to clear all timer 8 Room temperature setting button Used to select the room temperature 9 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 the desi...

Page 11: ...again after a power failure Auto Restarting Operation is the function to operate procedures automatically to the previous operating conditions In case of connecting the simple wired remote controller plasma image is not displayed you press the forced operation button 1 Filter sign lamp LED is ON 2 If LED indicating filter sign lamp is ON clean the filter 3 After cleaning the filter press the Timer...

Page 12: ...arts of the indoor unit It may cause an injury 2 Clean dirt from the air filter using a vacuum cleaner or washing with water If dirt is conspicuous wash with a neutral detergent in lukewarm water If hot water 50 C or more is used it may be deformed 3 After washing with water dry well in the shade Do not expose the air filter to direct sunlight or heat from a fire when drying it 4 Install the air f...

Page 13: ...ll it in the indoor unit Refer to page 12 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 condi...

Page 14: ...d 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 f...

Page 15: ......

Reviews: