LG P18AWN-14, P24AWN-14, P28AWN-14 User Manual

www.lg.comP/NO : MFL67641321

OWNER’S MANUAL

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

AIR
CONDITIONER

ENGLISH

2

TIPS FOR SAVING ENERGY

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Here are some tips that will help you minimize the power consumption when you use the air
conditioner. You can use your air conditioner more efficiently by referring to the instructions
below:

• Do not cool excessively indoors. This may be harmful for your health and may consume more
electricity.

• Block sunlight with blinds or curtains while you are operating the air conditioner.

• Keep doors or windows closed tightly while you are operating the air conditioner.

• Adjust the direction of the air flow vertically or horizontally to circulate indoor air.

• Speed up the fan to cool or warm indoor air quickly, in a short period of time.

• Open windows regularly for ventilation as the indoor air quality may deteriorate if the air con­ditioner is used for many hours.

• Clean the air filter once every 2 weeks. Dust and impurities collected in the air filter may block
the air flow or weaken the cooling / dehumidifying functions.

For your records

Staple your receipt to this page in case you need it to prove the date of purchase or for warranty
purposes. Write the model number and the serial number here:

Model number :

Serial number :

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

Dealer’s name :

Date of purchase :

TIPS FOR SAVING ENERGY

IMPORTANT SAFETY INSTRUCTIONS

3

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IMPORTANT SAFETY INSTRUCTIONS

READ ALL INSTRUCTIONS BEFORE USING THE APPLIANCE.

Always comply with the following precautions to avoid dangerous situations and ensure peak
performance of your product

WARNING

It can result in serious injury or death when the directions are ignored

CAUTION

It can result in minor injury or product damage when the directions are ignored

WARNING

• Installation or repairs made by unqualified persons can result in hazards to you and others.

• Appliance shall be installed in accordance with national wiring regulations.

• If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or
similarly qualified persons in order to avoid a hazard.

• The information contained in the manual is intended for use by a qualified service technician
familiar with safety procedures and equipped with the proper tools and test instruments.

• Failure to carefully read and follow all instructions in this manual can result in equipment mal­function, property damage, personal injury and/or death.

• When the power cord is to be replaced, replacement work shall be performed by authorized
personnel only using only genuine replacement parts.

Installation

• Use a standard circuit breaker and fuse conforming with the rating of the air conditioner. Fail­ure to do so may result in electric shock or product failure.

• Contact an authorized service center when you install or relocate the air conditioner. Failure to
do so may result in serious injury or product failure.

• Install the panel and the cover of the control box safely. Failure to do so may result in explo­sion or fire.

• Install a dedicated electric outlet and circuit breaker before you use the air conditioner. Failure
to do so may result in electric shock or product failure.

• Use a standard circuit breaker and fuse conforming with the rating of the air conditioner. Fail­ure to do so may result in electric shock or product failure.

• Be cautious when you unpack or install the air conditioner. Failure to do so may result in seri­ous injury or product failure.

• Do not install the air conditioner on an unstable surface or where there may be a danger of it
falling. It may result in death, serious injury, or product failure.

• Use inflammable gas (nitrogen) to inspect leak and to purge air, using compressed air or flam­mable gas may cause fire or explosion.

!

!

!

4

IMPORTANT SAFETY INSTRUCTIONS

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Operation

• Do not let the air conditioner run for a long time when the humidity is very high or when a door or
window has been left open. Failure to do so may result in product failure.

• Do not place any objects on the power cord. It may result in electric shock or product failure.

• Do not turn on or off the air conditioner by plugging in or unplugging the power plug. It may result in
fire or electric shock.

• Do not touch, operate or repair the air conditioner with wet hands. It may result in electric shock or
product failure.

• Do not place a heater or other heating appliances near the power cable. It may result in fire, electric
shock, or product failure.

• Do not allow water to run into the air conditioner. It may result in explosion or fire.

• Do not leave flammable substances such as gasoline, benzene and thinner near the air conditioner.
It may result in explosion or fire.

• Do not use the air conditioner for an extended period of time in a small place without ventilation.
Ventilate the place regularly. Failure to do so may result in explosion or fire.

• When there is a gas leak, ventilate sufficiently before using the air conditioner again. Failure to do so
may result in explosion or fire.

• Stop operating and close the window in strom or hurricane.If possible remove the product from the
window before hurricane arrives

• Do not touch the electrostatic filter after opening the front grille. Failure to do so may result in elec­tric shock or product failure.

• Contact an authorized service center when the air conditioner is submerged into water due to flood­ing. Failure to do so may result in explosion or fire.

• Be cautious water could not enter the product

• Make sure to ventilate sufficiently when this air conditioner and a heating appliance such as a heater
are used simultaneously. Failure to do so may result in fire, serious injury, or product failure.

• Turn the main power off and unplug the power plug when you clean or repair the air conditioner.
Failure to do so may result in death, serious injury, or product failure.

• Isolate power when the air conditioner is not used for an extended period of time. Failure to do so
may result in product failure.

• Do not place any objects on the air conditioner. It may result in product failure.

• For inner cleaning, contact an Authorized Service Center or a dealer.
Do not use harsh detergent that causes corrosion or damage on the unit.
Harsh detergent may also cause failure of product, fire, or electronic shock.

• This appliance is not intended for use by persons (including children) with reduced physical, sensory
or mental capabilities, or lack of experience and knowledge unless they have been given supervision
or instruction concerning use of the appliance by a person responsible for their safety.

• Children should be supervised to ensure that they do not play with the appliance.

IMPORTANT SAFETY INSTRUCTIONS

5

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CAUTION

Installation

• Make sure to check if there is a refrigerant leak after you install or repair the air conditioner. Failure
to do so may result in product failure.

• Install the drain hose properly for smooth drainage of condensed water. Failure to do so may result
in product failure.

• Keep level even when installing the product.

• Install the air conditioner where the noise from the outdoor unit or the exhaust gas will not incon­venience the neighbors. Failure to do so may result in conflict between neighbors.

• When transporting the equipment, there should be at least 2 or more people, or a forklift. It may re­sult in serious injury.

• Do not install the air conditioner where it will be exposed to sea wind (salt spray) directly. It may re­sult in product failure.

Operation

• Do not expose people, animals or plants to the cold or hot wind from the air conditioner. It may re­sult in serious injury.

• 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. It may result in death, fire or electric
shock.

• Do not block the inlet or outlet of air flow. It may result in explosion or product failure.

• Do not use strong cleaning agents or solvents when you clean the air conditioner, or spray water.
Use a smooth cloth. It may result in serious injury or product failure.

• Never touch the metal parts of the air conditioner when you remove the air filter. It may result in se­rious injury or product failure.

• Do not place any objects on the air conditioner. It may result in product failure.

• Always insert the filter securely after cleaning. Clean the filter every two weeks or more often if
necessary.

• Do not insert hands or other objects through the air inlet or outlet while the air conditioner is operat­ing. It may result in electric shock.

• Do not drink the water drained from the air conditioner. It may result in serious health complications.

• Use a sturdy stool or ladder when you clean, maintain or repair the air conditioner at a height. Failure
to do so may result in serious injury or product failure.

• Do not mix the batteries for the remote control with other types of batteries or mix new batteries
with used batteries. Failure to do so may result in product failure.

• Do not recharge or disassemble the batteries. Failure to do so may result in explosion, fire or serious
injury.

• Stop using the remote control if there is a battery fluid leak. If your cloth or skin is exposed to the
battery fluid from a leak, wash it off with clean water. Failure to do so may result in serious injury.

• If you swallow the battery fluid from a leak, wash out the inside of your mouth thoroughly and then
consult a doctor. Failure to do so may result in serious health complications.

!

Operation ranges

The table below indicates the temperature ranges the air conditioner can be operated within.

Mode Indoor temperature outdoor temperature
Cooling 18°C~30°C -10°C~48°C
Heating 16°C~30°C -15°C~24°C

6

TABLE OF CONTENTS

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TABLE OF CONTENTS

2 TIPS FOR SAVING EN-

ERGY

3 IMPORTANT SAFETY IN-

STRUCTIONS

5 Operation ranges

7 BEFORE USE

7 Components

8 Using the remote control

10 BASIC FUNCTIONS

10 Cooling your room

10 Heating your room

10 Removing humidity

11 Airing your room

11 Adjusting the fan speed

11 Adjusting the air flow direction

11 Setting the timer

13 ADVANCED FUNCTIONS

13 Changing room temperature quickly

13 Indoor air purification

14 Ionizer Purification operation (optional)

14 Auto operation

14 Auto Changeover operation

15 Silent mode

15 Energy Control mode

16 Display screen brightness

17 Operating the air conditioner without the

remote control

17 Restarting the air conditioner automati-

cally

18 WLAN Connecting (optional)

19 MAINTENANCE

21 Cleaning the air filter

21 Cleaning the 3M Filter

22 TROUBLESHOOTING

22 Self-diagnosis function

22 Before requesting service

BEFORE USE

7

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Outdoor unit

Indoor unit

* The feature can be changed according to type of model.

* The feature can be changed according to type of model.

NOTE

!

• The number of operation lamps and their locations may vary, depending on the model of
the air conditioner.

• The WLAN Module, an optional accessory (sold separately), is required to enable WLAN
connectivity.

BEFORE USE

Components

3M filter

Front grille

Air filter

Air outlet

Air inlet

Air deflector
(Vertical louver & Horizontal vane)

Front Cover

WLAN Module
(Sold separately)

On/Off button

Signal receiver

Operation lamp

Ionizer

Air inlet vents

Connecting wires

Air outlet vents

Base plate

Refrigerant pipes

Drain hose

8

BEFORE USE

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Using the remote control

Wireless remote control

You can operate the air conditioner more conveniently with the remote control.

* Some functions may not be supported, depending on the

model.

Control

panel

Display

screen

Description

A

K

IONIZER button*: Ionizer sterilize the
aerial bacteria and other harmful sub­stances.

l

Sleep mode auto button*: Sets the
sleep mode auto operation.

_

Temperature adjustment buttons: Ad­justs the room temperature when cool­ing and heating.

|

- On/Off button: Turns the power on/off.

g

L

Indoor fan speed button: Adjusts the
fan speed.

f

AC

DBE

Operation mode selection button*: Se­lects the operation mode.
Cooling operation (A) / Auto operation
or auto changeover (C) / Dehumidify­ing operation (D) / Heating operation
(B) / Air circulation (E)

M

Jet cooling/heating button*: Warms up
or cools down the indoor temperature
within a short period of time.

DE

IJ

Air flow direction button: Adjusts the air
flow direction vertically or horizontally.

k

S

Temperature display button: Displays the
room temperature. Also changes unit
from °C to °F if pressed for 5 seconds.

mn

Timer button : Sets the start / end time.

C
B

H

I

J

J

Navigation and functions button*: Ad­justs the time and sets the special
functions.
I Operates SILENT mode / J Oper­ates E/Control mode /

J: Auto clean.

Silent Mode and E/Control are not avail­able at the same time.

G

-

Adjusts the brightness of the indoor
unit display

p

-

Set/clear button: Sets or cancels func­tions.

r

-

Reset button: Resets the air condi­tioner settings.

Display
screen

Control
panel

BEFORE USE

9

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Inserting batteries

Insert batteries before using the remote
control. The battery type used is AAA (1.5 V).

1 Remove the battery cover.

2 Insert the new batteries and make sure

that the + and - terminals of the batteries
are installed correctly.

3 Reattach the battery cover.

Installing the remote control holder

Install the holder where there is no direct sun­light to protect the remote control.

1 Choose a safe and easily-accessible place.

2 Fix the holder by fastening the 2 screws

firmly with a screwdriver.

3 Slide the remote control into the holder.

Point the remote control towards the signal
receiver at the bottom of the air conditioner to
operate it.

NOTE

!

If the display screen of the remote control
starts to fade, replace the batteries.

NOTE

!

• The remote control may operate other
electronic devices if pointed towards
them. Make sure to point the remote
control towards the signal receiver of
the air conditioner.

• For proper operation, use a soft cloth to
clean the signal transmitter and receiver.

Operating method

10

BASIC FUNCTIONS

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Cooling your room

(Cooling operation)

1 Press | to turn on the power.
2 Press f repeatedly to select the cooling

operation.

- A is displayed on the display screen.

3 Press G or H to set the desired tempera-

ture.

- The temperature range is 18°C ~ 30°C.

Heating your room

(Heating operation)

1 Press | to turn on the power.
2 Press f repeatedly to select the heating

operation.

- B is displayed on the display screen.

3 Press G or H to set the desired tempera-

ture.

- The temperature range is 16°C ~ 30°C.

Removing humidity

(Dehumidifying operation)

This mode removes excess moisture from an
environment with high humidity or in the rainy
season, in order to prevent mold from setting
in. This mode adjusts the room temperature
and the fan speed automatically to maintain
the optimal level of humidity.

1 Press | to turn on the power.
2 Press f repeatedly to select the dehu-

midifying operation.

-

D is displayed on the display screen.

D

*

D

*

D

*

NOTE

!

• In this mode you cannot adjust the room
temperature, as it is adjusted automati­cally. Also, the room temperature is not
displayed on the display screen.

NOTE

!

Cooling-only models do not support this
function.

BASIC FUNCTIONS

BASIC FUNCTIONS

11

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Airing your room

(Air Circulation operation)

This mode only circulates the indoor air
without changing the room temperature.

1 Press | to turn on the power.
2 Press f repeatedly to select the air circu-

lation operation.

- E is displayed on the display screen.

3 Press g to adjust the fan speed.

Adjusting the fan speed

1 Press g repeatedly to adjust the fan

speed.

- Select 5if you want natural air.
The fan speed adjusts automatically.

Adjusting the air flow direc­tion

1 To adjust the direction of the air flow hori-

zontally, press D repeatedly and select
the desired direction.

- Select I to adjust the direction of the air

flow automatically.

2 To adjust the direction of the air flow verti-

cally, press E repeatedly and select the
desired direction.

- Select J to adjust the direction of the

air flow automatically.

Setting the timer

You can use the timer function to save energy
and to use the air conditioner more efficiently.

Setting the current time

1 Press p and hold it for longer than 3 sec-

onds.

- The AM/PM icon flickers at the bottom of
the display screen.

D

*

NOTE

!

• Adjusting the air flow direction vertically
may not be supported, depending on
the model.

• Adjusting the air deflector arbitrarily may
cause product failure.

• If you restart the air conditioner, it starts
to operate with the previously set direc­tion of air flow, so the air deflector may
not match the icon displayed on the re­mote control. When this occurs, press

D or E to adjust the direction of the

air flow again.

Remark Speed

High

Medium-High

Medium

Medium-Low

Low

Natural Wind

12

BASIC FUNCTIONS

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2 PressEorFto select the minutes.
3 Press p to finish.

Turning on the air conditioner auto­matically at a set time

1 Press m.

- The icon below flickers at the bottom of
the display screen.

2 PressEorFto select the minutes.
3 Press p to finish.
4 When setting the timer, current time and

ON icon are displayed on the display
screen indicating that the desired time is
set.

Turning off the air conditioner auto­matically at a set time

1 Press n.

- The icon below flickers at the bottom of
the display screen.

2 PressEorFto select the minutes.
3 Press p to finish.
4 When setting the timer, current time and

OFF icon are displayed on the display
screen indicating that the desired time is
set.

Canceling the timer setting

1 Press p.

- To cancel all timer settings, press

p.

Setting sleep mode

Use the sleep mode to turn off the air condi­tioner automatically when you go to sleep.

1 Press | to turn on the power.
2 Press l
3 PressEorFto select the hour

(up to 7 hours).

4 Press p to finish.

-

T is displayed on the display screen in

sleep mode.

NOTE

!

In the Cooling and Dehumidifying modes,
the temperature increases by 1°C after 30
minutes and by a further 1°C after another
30 minutes for a more comfortable sleep.
The temperature increases with up to 2°C
from the preset temperature.

ADVANCED FUNCTIONS

13

ENGLISH

The air conditioner offers some additional ad­vanced functions.

Changing room temperature
quickly

(Jet Cool/Heat operation)

This mode allows you to cool indoor air quickly
in summer or warm it quickly in winter.

1 Press | to turn on the power.
2 Press M.

- In jet cooling mode, strong air blows out
at a temperature of 18°C for 30 minutes.

- In jet heating mode, strong air blows out
at a temperature of 30°C for 30 minutes.

Indoor air purification

Auto Clean operation (optional)

In the cooling and dehumidifying operations,
moisture is generated inside the indoor unit.
Use the auto cleaning function to remove
such moisture.

1 Press

H

.

-

J is displayed on the display screen.

- If you turn off the power, the fan oper­ates for 30 minutes and cleans the inside
of the indoor unit.

D

*

NOTE

!

• In Air Circulation, Auto, or Auto
Changeover mode, this function cannot
be used.

• This function may not be supported, de­pending on the model.

NOTE

!

Some buttons cannot be used while the
auto cleaning function is in operation.

ADVANCED FUNCTIONS

14

ADVANCED FUNCTIONS

ENGLISH

D

*

NOTE

!

This function may not be supported,
depending on the model.

D

*

NOTE

!

• You can use this function by pressing

A

without turning the air conditioner

on.

• This function may not be supported, de­pending on the model.

• Do not touch Ionizer during operation.

NOTE

!

• In this mode, you cannot adjust the fan
speed, but you can set the air deflector
to rotate automatically.

• This function may not be supported, de­pending on the model.

Cooling-only models

Auto Changeover operation

This mode changes the operation mode auto­matically to maintain the set temperature
at ±2°C.

1 Press | to turn on the power.
2 Press f repeatedly to select the auto

changeover operation.

-

C is displayed on the display screen.

3 PressG or Hto set the desired tempera-

ture.

- The temperature range is 18°C ~ 30°C.

4 Press g repeatedly to select the fan

speed.

Auto operation

(Artificial intelligence)

In this mode, the fan speed and the tempera­ture adjust automatically, based on the room
temperature.

1 Press | to turn on the power.
2 Press f repeatedly to select auto opera-

tion.

3 PressG or Hto select the desired opera-

tion code if the temperature is higher or
lower than the desired temperature.

Ionizer Purification operation
(optional)

Ion particles from Ionizer developed by LG
sterilize the aerial bacteria and other harmful
substances.

1 Press | to turn on the power.
2 Press A.

-

K is displayed on the display screen.

Code Description

2 Cool
1 Cool slightly
0 Maintain

room
temperature

-1 Heat slightly

-2 Heat

ADVANCED FUNCTIONS

15

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Energy Control mode

It is Brings the effect of the power saving.
(Setting available in air cooling mode)

1 step : The power Input in cooling mode is

decreased by 20% compared to rated
power Input

2 step : The power Input in cooling mode is

decreased by 40% compared to rated
power Input

3 step : The power Input in cooling mode is

decreased by 60% compared to rated
power Input

NOTE

!

•

Setting available only under operation-ON
Silent Mode and E/Control are not avail­able at the same time. If E/Control is
pressed under Silent Mode, Silent Mode is
released and E/Control works.

• Capacity may decrease when outdoor
unit silent mode is selected.

• In Air Circulation, Humidity mode, this
function cannot be used.

Silent Mode Function available under the
below temperature set

- Cooling-possible temperature range: Indoor
18°C ~ 30°C, Outdoor 18°C ~ 43°C

- Heating-possible temperature range: Indoor
16°C ~ 30°C, Outdoor 6°C ~ 24°C

1 Step Entrance

2 Step Entrance

3 Step Entrance

1 Press | to turn the power on.
2 Press

B

.

-

J is displayed on the display screen.

Silent mode

It is to prevent potential claims by neighbors,
reducing noise from outdoor units.

The outdoor unit sound pressure in cooling
and heating mode is decreased by 3dB com­pared to the rated sound pressure

1 Press | to turn the power on.
2 Press

C

.

-

I is displayed on the display screen.

16

ADVANCED FUNCTIONS

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Display screen brightness

You can adjust the brightness of the indoor
unit display screen.

1 Press

G

on/off the Display screen.

NOTE

!

• In Cooling mode, this function can be
used.

• Every time E/Control on wireless remote
controller is pressed, 1Step, 2Step,
3Step, functions release are repeated
and switched Wanted temperature ap­pears for 5 sec.

• Capacity may decrease when outdoor
unit Energy Control mode is selected.

• According to protection logic, The 2step
may not be entered.

NOTE

!

This function may not be supported,
depending on the model.

Energy Control mode Function available under
the below temperature set

- Cooling-possible temperature range:
Indoor 18°C ~ 30°C,
Outdoor 21°C ~ 36°C

ADVANCED FUNCTIONS

17

* The feature can be changed according to

type of model.

* The feature can be changed according to

type of model.

Disabling auto restart

Restarting the air conditioner
automatically

When the air conditioner is turned on again
after a power failure, this function restores
the previous settings. This function is a fac­tory default setting.

1 Open the front cover.

- Lift up both sides of the cover slightly.

2 Press the On/Off button and hold it for 6

seconds.

- The unit will beep twice and the lamp will
blink 6 times.

- To re-enable the function, press the On/
Off button and hold it for 6 seconds. The
unit will beep twice and the blue lamp will
blink 4 times.

* The feature can be changed according to

type of model.

* The feature can be changed according to

type of model.

NOTE

!

If you press and hold the On/Off button for
3 – 5 seconds instead of 6 seconds, the
unit will switch to the test operation. In the
test operation, the unit blows out strong air
for cooling for 18 minutes and then returns
to the factory default settings.

Room temp. Set temp.

Operation

mode

Below 21°C 24°C

Heating
operation

Above 21°C
and below
24°C

23°C

Dehumidify­ing operation

Above 24°C 22°C

Cooling
operation

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Operating the air conditioner
without the remote control

You can use the On/Off button of the indoor
unit to operate the air conditioner when the
remote control is unavailable. However, the
fan speed is set to high.

1 Open the front cover.

- Lift up both sides of the cover slightly.

2 Press the On/Off button.

- For cooling and heating models, the oper­ation mode changes, depending on the
room temperature.

- For cooling-only models, the temperature
is set to 22°C.

18

ADVANCED FUNCTIONS

ENGLISH

NOTE

!

• The WLAN Module (PCRCUDT2/ PCRCUDT3), an optional accessory (sold separately), is re­quired to enable WLAN connectivity.

• For details, refer to the following web site.

- Australia : http://au.smartthinq.com

- New Zealand : http://nz.smartthinq.com

WARNING

This device is not available for laptop or similar portable system.

!

User Guide

• The mobile App can be updated for the usability/the design improvement and to reinforce the
contents.

• Some functions may be limited for the air conditioner model without the provided function.

• When Dry Contact Mode is operated, WLAN Function can not be used.

Setting the Environment

1. Search and download ‘LG Smart AC’ in Google play or App store.

2. Become a member in LG Smart AC app or web site.

- Australia : http://au.smartthinq.com

- New Zealand : http://nz.smartthinq.com

3. Please log in and register the product.

- For detail usage guide, refer to the installation manual enclosed in LG Smart AC box.

WLAN Connecting (optional)

*Limited to the WLAN applied model

User Environment

<Minimal Specifications>

• OS: Android OS 4.0 or higher, iOS 6 or higher

• Resolution : android 320 x 480 or higher, iOS 960 x 640 or higher

Some functions may not operate, or a part of the screen may get fuzzy depending on the smart­phone.
* A normal operation is not possible in the environment that does not satisfy the minimal specifi-

cations.

• WLAN Sharing Device Minimal Specification

Model Type : CISCO, APPLE, ASUS, D-LINK ,TP LINK, TRENDNET, ACTIONTEC, NETGEAR,
2WIRE
* Specified model is optimized. A normal operation is not possible in the environment that does

not satisfy the minimal specifications.

MAINTENANCE

19

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MAINTENANCE

If the air conditioner will not be used for an extended of time, dry the air conditioner to maintain it
in best condition.

1 Dry the air conditioner in Fan mode for 3 to 4 hours and disconnect the power plug. There

may be internal damage if moisture is left in components.

2 Before using the air conditioner again, dry the inner components of the air conditioner in Fan

mode for 3 to 4 hours. This will help to remove odor which is generated from moisture.
Clean the product regularly to maintain optimal performance and to prevent possible breakdown.
* This may not be provided, depending on the model.

* The feature can be changed according to type of model.

Type Description Interval

Air filter See “Cleaning the air filter.” 2 weeks

Ionizer See “Cleaning the ionizer” 6 months

3M filter See ” Cleaning the 3M filter ” 1 month

Indoor unit

Clean the Indoor unit surface by using a soft, dry cloth. Regularly

Clean the condensate drain pipe. Every 4 months

Clean the condensate drain pan. Once a year

Thoroughly clean the heat exchanger. Once a year

Replace the remote control batteries. Once a year

Outdoor unit

Clean the heat exchanger coils and the panel vents. (con­sult with technician)

Regularly

Clean the fan. Once a year

Clean the condensate drain pan. Once a year

Verify that all the fan assembly is firmly tightened. Once a year

Consult technician to verify operation of electrical compo­nents.

Once a year

Clean the electric components with jets of air. Once a year

3M filter

Air filter

Ionizer

20

MAINTENANCE

CAUTION

• Turn off the power before you perform any maintenance; otherwise it may cause electric
shock.

• Never use water that is hotter than 40°C when you clean the filters. It may cause deforma­tion or discoloration.

• Never use volatile substances when you clean the filters. They may damage the surface of
the product.

• Do not washed the 3M filter with water, because the filter can be damaged

!

Cleaning the Ionizer

• Turn off the power.

• Use dry cotton bud to remove any dust.

NOTE

!

• The location and shape of the filters may differ, depending on the model.

• Make sure to clean the heat exchanger coils of the outdoor unit regularly, as dirt collected
in the coils may decrease the operational efficiency or increase energy costs.

ENGLISH

Cleaning the 3M Filter

1 Turn off the power and unplug the power

cord.

2 Open the front cover and remove the air fil-

ter (see “Cleaning air filter”).

3 Remove the 3M Filter.

4 Use a vacuum cleaner to remove dirt,

Do not wash the 3M Filter with water, be­cause the filter can be damaged.

NOTE

!

• We suggest changing the 3M Filter
every 6 Months

• The location of the filters may differ,
depending on the model.

• If you need more filters, please contact
the LG service center (Refer to the
warranty card)

* The feature can be changed according a

type of model.

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MAINTENANCE

ENGLISH

Cleaning the air filter

Clean the air filter once every 2 weeks or
more if necessary.

1 Turn off the power and unplug the power

cord.

2 Open the front cover.

- Lift up both sides of the cover slightly.

* The feature can be changed according to

type of model.

3 Hold the knob of the air filter, lift it up

slightly and remove it from the unit.

* The feature can be changed according to

type of model.

4 Clean the filter with a vacuum cleaner or

with warm water.

- If dirt is difficult to remove, wash the fil­ter in lukewarm water with detergent.

5 Dry the filter in the shade.

22

TROUBLESHOOTING

Self-diagnosis function

This product has a built-in self-diagnosis function. If an error occurs, the lamp of the indoor unit
will blink in 2 second intervals. If this occurs, contact your local dealer or service center.

Before requesting service

Please check the following before you contact the service center. If the problem persists, contact
your local service center.

Problem Possible causes Corrective action

There is a burning smell and
a strange sound coming
from the unit.

-

Turn off the air conditioner, unplug the
power cord and contact the service center.

Water leaks from the indoor
unit even when the humidity
level is low.

The power cord is damaged
or generating excessive
heat.

A switch, a circuit breaker
(safety, ground) or a fuse is
not operated properly.

The air conditioner does not
work.

The air conditioner is
unplugged.

Check whether the power cord is plugged
into the outlet.

A fuse is blown or the
power supply is
blocked.

Replace the fuse or check if the circuit
breaker has tripped.

A power failure has
occurred.

Turn off the air conditioner when a power
failure occurs. When the power is restored,
wait 3 minutes, and then turn on the air
conditioner.

The voltage is too
high or too low.

Check if the circuit breaker has tripped.

The air conditioner
turned off automati­cally at a preset time.

Press the power button again.

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TROUBLESHOOTING

Problem Possible causes Corrective action

The air conditioner does not
generate cool air.

Air is not circulating
properly.

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

The air filter is dirty.

Clean the air filter once every 2 weeks.
See “Cleaning Air Filter” for more infor­mation.

The room tempera­ture is too high.

In summer, it may take some time to cool
indoor air. In this case, select the jet cool
operation to cool indoor air quickly.

Cold air is escaping
from the room.

Make sure that no cold air is escaping
through ventilation points in the room.

The desired tempera­ture is higher than the
set temperature.

Set the desired temperature to a level
lower than the current temperature.

There is a heating
source nearby.

Avoid using a heat generator such as an
electric oven or a gas burner while the air
conditioner is in operation.

Air circulation opera­tion is selected.

In the air circulation operation, air blows
from the air conditioner without cooling or
heating the indoor air. Switch the opera­tion mode to the cooling operation.

It is not possible to adjust
the fan speed.

The auto operation,
jet operation or dehu­midifying operation is
selected.

In some operation modes, such as the jet
or dehumidifying operation modes, you
cannot adjust the fan speed. Select an op­eration mode in which you can adjust the
fan speed.

It is not possible to adjust
the temperature.

The air circulation op­eration or jet opera­tion is selected.

In some operation modes, such as the air
circulation or jet operation mode, you can­not adjust the temperature. Select an op­eration mode in which you can adjust the
temperature.

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TROUBLESHOOTING

ENGLISH