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LG ARNU183TLC2 Owner's Manual

Made by: LG
Type: Owner's Manual
Category: Air Conditioner
Pages: 13
Size: 0.59 MB


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Full Text Searchable PDF User Manual

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P/NO : MFL42803014




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


Ceiling Cassette - 2Way







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Indoor Unit

Ceiling Cassette - 2Way Type Indoor Unit Ownerʼs Manual



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.


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.


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.

• Installation work must be performed in accordance with

the National Electric Code by qualified and authorized
personnel only.

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

Prior to Operation ..................6

Operating Instructions...........7

Maintenance and Service ....10

Before you Call for Service



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Safety Precautions

Ownerʼs Manual 



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


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 to properties only.


Meanings of symbols used in this manual are as shown below.

Be sure not to do.

Be sure to follow the instruction.




Do not use a defective or
underrated circuit breaker. Use
this appliance on a dedicated

• 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 product.

• There is 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 or electric shock.

Do not install, remove, or re-
install the unit by yourself

• There is risk of fire, electric shock,

explosion, or injury.

Be cautious when unpacking
and installing  the product.

• Sharp edges could cause injury. Be

especially careful of the case edges
and the fins on the condenser and

For installation, always contact the
dealer or an Authorized Service Center.

• There is risk of fire, electric shock,

explosion, or injury.

Do not install the product on a
defective installation stand.

• It may cause injury, accident, or

damage to the product.

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.


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Safety Precautions


Indoor Unit

Do not allow water to run into
electric parts.

• It may cause  There is risk of fire,

failure of the product, or electric

Do not store or use flammable gas
or combustibles near the product.

• There is risk of fire or failure of


Do not use the product in a tightly
closed space for a long time.

• Oxygen deficiency could occur.

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

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 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 product is soaked
(flooded or submerged),
contact an Authorized Service

• There is risk of fire or electric shock.

Be cautious that water could
not enter the product.

• There is risk of fire, electric shock,

or product damage.

Ventilate the 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

• There is risk of fire or electric shock.

Do not touch(operate) the
product with wet hands.

• There is risk of fire or electrical


Do not place a heater or other
appliances near the power

• There is risk of fire and electric




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.

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 place anything on the
power cable.

• There is risk of fire or electric shock.

When the product is not be used for a long time,
disconnect the power supply plug or turn off the

• There is risk of product damage or failure, or unintended


Take care to ensure that nobody could step on
or fall onto the outdoor unit.

• This could result in personal injury and product damage.




Always check for gas (refrigerant)
leakage after installation or repair
of product.

• Low refrigerant levels may cause

failure of product.

Install the drain hose to ensure
that water is drained away

• A bad connection may cause water


Keep level even when installing
the product. 

• To avoid vibration or water leakage.


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Safety Precautions

Ownerʼs Manual 





Do not install the product where the
noise or hot air from the outdoor unit
could damage the neighborhoods.

• It may cause a problem for your


Use two or more people to lift
and transport the product. 

• Avoid personal injury.

Do not install the product 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.

Do not expose the skin directly to cool air for
long periods of time. 
(Don't sit in the draft.)

• This could harm to your health.

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 recharge or
disassemble the batteries. Do
not dispose of batteries in a

• 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

• 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

Do not touch the metal parts of the
product when removing the air
filter. They are very sharp!

• There is risk of personal injury.

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

• 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

• There are sharp and moving parts

that could cause personal injury.

Do not drink the water drained
from the product.

• It is not sanitary and could cause

serious health issues.

Use a firm stool or ladder when
cleaning or maintaining the

• Be careful and avoid personal 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

• There is risk of fire or explosion


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Prior to operation 


Indoor Unit

Prior to Operation

1. Contact an installation specialist for installation.

2. Use a dedicated circuit.

1. Being exposed to direct airflow for an extended period of time could be hazardous to your health.

Do not expose occupants, pets, or plants to direct airflow for extended periods of time.

2. Due to the possibility of oxygen deficiency, ventilate the room when used together with stoves or

other heating devices.

3. Do not use this air conditioner for non-specified special purposes (e.g. preserving precision

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 breaker are turned off. The fan rotates

at a very high speed during operation. There is a possibility of injury if the unitʼs power is
accidentally triggered on while cleaning inner parts of the unit.

For repair and maintenance, contact your authorized service dealer.

Preparing for operation


Cleaning and maintenance



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Operating Instructions

Ownerʼs Manual 



Operating Instructions














Please attach the inform label inside of the door.
Please choose proper language depend on your 



Name and function of wired remote controller(Accessory)

※ Some functions may not be operated and displayed depending on the product type.

※ It will display strange value to the room temperature if wired remote controller is not connected.

Model : PQRCVSL0 (Black Color)

PQRCVSL0QW (White Color) 

1.  Operation indication screen

2.  Set 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,left,right button


To check the indoor temperature, press       button.

13. Room temperature button

• Displays only the room temperature of the remote

controller perception.

• There is no control of room temperature.

• In case of  fresh air intake unit, displays only the

temperature around remote controller.

14. Setting/Cancel button

15. Exit button


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Operating Instructions


Indoor Unit

Name and function of wired remote controller(Optional)

Cooling Mode

Auto Mode or Auto Changeover

Dehumidification mode

Heating Mode

Fan Mode 

• Cooling Model(  ), Heat Pump Model(  )

Operation Mode

PQWRCDF0 (Heat pump)
PQWRHDF0 (Cooling only)
















1.  Plasma button (optional)

Used to start or stop the plasma-purification

2.  Jet cool button

Speed cooling operates super high fan speed.

3.  Operation mode selection button

Used to select the operation mode.

4.  Function setting button

Used to set or clear auto clean or smart clean.

5.  LCD luminosity button (optional)

Used to adjust LCD luminosity

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.

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
desired up/down airflow direction.

12. Horizontal airflow direction control button


Used to set the desired horizontal airflow direction.

13. Timer and time setting button

Used to set the time of starting or stopping and
sleeping operation.

14. Room temperature checking button

Used to check the room temperature.

15. ˚C/˚F switch button

Used to switch temperature reading from Celsius to

16. Reset button

Used to reset the remote controller.


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Operating Instructions

Ownerʼs Manual 


Forced operation
(Tact switch)

Forced Operation

Auto Restart Function

Tips for Filter sign LED

Operation procedures when the remote control can't be used.
Press the tact switch (Forced operation) for 2 seconds.
If you want to stop operation, press again the tact switch.
In case the power comes on again after power failure on the Forced
Operation mode, the operating conditions are automatically set as
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.

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 button and 

button of wired remote controller at the same time for 3 sec.

Then filter sign LED is OFF.

Heat pump Model

Cooling Model

Room Temp. ≥ set Temp.4 °F(2°C)

Room Temp. < set Temp.4 °F(2°C)

Operating mode




Indoor FAN Speed


set available

set available

Setting Temperature

72 °F(22°C)

set available

set available


In case of connecting the simple wired remote controller, plasma image is not displayed you press the forced
operation button.


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Maintenance and Service


Indoor Unit

B enzene





Air Intake

Air Outlet

Air Filter

Anti-bacteria filter

Push Button


Maintenance and Service

Grille, Case, and Remote Control


Turn the system off before cleaning. To clean, wipe with
a soft, dry cloth. Do not use bleach or abrasives.

Supply power must be disconnected before
cleaning the indoor unit.


1. Remove the Air filters.

Take hold of the tab and pull slightly forward
to remove the filter.


When the air filter is

to be removed, do not touch the
metal parts 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

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

4. Install the air filter.

Air Filters

The air filters behind the front grille should be checked and
cleaned once every 2 weeks or more often if neccessary.


Before performing any maintenance, turn off the main power to

the system.

Never use any of the followings:


Water hotter than 40°C.
Could cause deformation and/or


Volatile substances.
Could damage the 
surfaces of the air 


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Maintenance and Service

Ownerʼs Manual 





When the air conditioner is not going to be used for a long time.

Operation Tips

Helpful information

The air filters and your electiric bill.
If the air filters become clogged with dust, the
cooling capacity will drop, and 6% of the electricity
used to operate the air conditioner will be wasted.

When it is not going to be used for 
a long time.

When the air conditioner is to be used again.

Operate the air conditioner at the
following settings for 2 to 3 hours.

• Type of operation: Fan operation mode.
• This will dry out the internal mechanisms.

Turn off the breaker. 

Turn off the breaker when the air conditioner
is not going to be used for a long time.

Dirt may collect and may cause a fire.

Clean the air filter and install it in 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


Do not let direct sunshine
enter the room when the air
conditioner is in operation.

Keep the room temperature


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

Make sure that the doors 

and windows are shut tight.

Avoid opening doors and
windows as much as possible
to keep the cool air in the

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


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


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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

• Has the fuse blown

or has the circuit
breaker been

• 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

• 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


Air conditioner does

not operate for about

3 minutes when


Does not cool or heat


The air conditioner

operation is noisy.

Crack sound is


Remote control

display is faint, or no

display at all.

• Is the air filter dirty?

See air filter cleaning

• 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

• For a noise that

sounds like water

-This is the sound of

freon flowing inside
the air conditioner

• For a noise that

sounds like the
compressed air
releasing into

-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

• Cleaning the filter,

press the Timer button

button of wired

remote controller at
the same time for 3

• Are the batteries


• Are the batteries

inserted in the
opposite (+) and (-)

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.


Filter sign lamp

(LED) is ON.


Indoor Unit

Maintenance and Service


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1. Please call the installing 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.


Service call Number # : (888) LG Canada, (888) 542-2623