LG LW8019ER User manual

www.lg.com
ESPAÑOL
Copyright © 2018 LG Electronics Inc. All Rights Reserved.
OWNER’S MANUAL
AIR
CONDITIONER
Read this owner’s manual thoroughly before operating the appliance
and keep it handy for reference at all times.
TYPE: WINDOW
MFL70960615
Rev.01_112818
ENGLISH
OWNER’S MANUAL
AIR
CONDITIONER
LW8019ER

2TABLE OF CONTENTS
TABLE OF CONTENTS
3 SAFETY INSTRUCTIONS
3 IMPORTANT SAFETYINSTRUCTIONS
8 PRODUCT OVERVIEW
8 Exterior Parts
8 Interior Parts
18 MAINTENANCE
18 Air Filter
19 TROUBLESHOOTING
19 Before Calling for Service
19 Normal Sounds You May Hear
22 WARRANTY
11 How to Install the Unit
11 Window Requirements
11 Preparation of Cabinet
12 Cabinet Installation
15 OPERATION
15 Control Panel and Remote Control
16 Wireless Remote Control
17 Ventilation
17 Air Direction
17 Additional Features
9 INSTALLATION
9 Electrical Data
10 Installation Overview

ENGLISH
3
SAFETY INSTRUCTIONS
SAFETY INSTRUCTIONS
READ ALL INSTRUCTIONS BEFORE USE
Your safety and the safety of others are very important.
We have provided many important safety messages in this manual and on your appliance. Always
read and follow all safety messages.
This is the safety alert symbol.
This symbol alerts you to potential hazards that can kill or injure you and others.
All safety messages will follow the safety alert symbol and either the word WARNING or
CAUTION.
These words mean:
WARNING
You may be killed or seriously injured if you do not follow instructions.
CAUTION
You may be injured or cause damage to the product if you do not follow instructions.
All safety messages will tell you what the potential hazard is, tell you how to reduce
the chance of injury, and tell you what may happen if the instructions are not followed.
IMPORTANT SAFETY INSTRUCTIONS
WARNING
injury to persons when using this product, follow basic precautions,
including the following:
INSTALLATION
●Before use, the appliance must be properly installed as described in this manual.
●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.

4SAFETY INSTRUCTIONS
●When the power cord is to be replaced, replacement work shall be performed by authorized
personnel only using only genuine replacement parts.
and authorized personnel only.
●Connect to a properly rated, protected, and sized power circuit to avoid electrical overload.
●Always plug into a grounded outlet.
●Do not under any circumstances, cut or remove the third (ground) prong from the power cord.
●When installing or moving the appliance, be careful not to pinch, crush, or damage the power
cord.
●Plug in the power plug properly.
●Do not modify or extend the power cord.
●Do not start/stop operation by plugging/unplugging the power cord.
●If the cord/plug is damaged, have it replaced by an authorized service person using authorized
replacement parts.
●Use a dedicated circuit.
●Do not disassemble or modify the product.
●Adhere to all industry recommended safety procedures including the use of long-sleeved gloves
and safety glasses.
●Use care when unpacking and installing. The edges of the product may be sharp.
●Disconnect the power cord or circuit breaker before installing or servicing the appliance.
●Keep packaging materials out of the reach of children. These materials can pose a suffocation
risk to children.
●Store and install the product where it will not be exposed to temperatures below freezing or
exposed to outdoor weather conditions.
other appliance.
OPERATION
●Use this appliance only for its intended purpose.
●Never attempt to operate this appliance if it is damaged, malfunctioning, partially disassembled,
or has missing or broken parts, including a damaged cord or plug.
●Repair or immediately replace all power cords that have become frayed or otherwise damaged.
Do not use a cord that shows cracks or abrasion damage along its length or at either end.
●Do not run cord under carpets or mats where it could be stepped on and damaged.
●Keep the cord out from under heavy objects like tables or chairs.
●Do not place the power cord near a heat source.
●Do not use an adaptor or plug the product into a shared outlet.
●Do not tamper with controls.
●If you detect a strange sound, a chemical or burning smell, or smoke coming from the appliance,
unplug it immediately, and contact an LG Electronics Customer Information Center.
straight out from the outlet.
●Do not grasp the power cord or touch the appliance controls with wet hands.

ENGLISH
5
SAFETY INSTRUCTIONS
●If water enters the product, turn off the power at the main circuit, then unplug the product and call
for service.
●If the product has been submerged, contact an LG Electronics Customer Information Center for
instructions before resuming use.
●Unplug the product when unused for long periods.
●Unplug the product before cleaning.
●In the event of a gas leak (propane gas, etc.) do not operate this or any other appliance. Open a
window or door to ventilate the area immediately.
●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 the use of the appliance by a person responsible for
their safety.
●The interior of the product must only be cleaned by an authorized service center or a dealer.
●Do not use solvent-based detergent on the product. Doing so can cause corrosion or damage,
GROUNDING INSTRUCTIONS
●The power cord of this appliance is equipped with a three-prong (grounding) plug. Use this with
a standard three-slot (grounding) wall power outlet to minimize the hazard of electric shock. The
sure the receptacle is properly grounded. DO NOT CUT OR REMOVE THE THIRD (GROUND)
PRONG FROM THE POWER PLUG.
- Situations when the appliance will be disconnected occasionally; Because of potential safety
hazards, we strongly discourage the use of an adapter plug. However, if you wish to use an
adapter, a TEMPORARY CONNECTION may be made. Use UL-listed adapter, available from
most local hardware stores.
The large slot in the adapter must be aligned with the large slot in the receptacle to assure a
proper polarity connection.
●Attaching the adapter ground terminal to the wall receptacle cover screw does not ground the
appliance unless the cover screw is metal, and not insulated, and the wall receptacle is grounded
to make sure the receptacle is properly grounded.
●Disconnect the power cord from the adapter, using one hand on each. Otherwise, the adapter
ground terminal might break. Do not use the appliance with a broken adapter plug.
- Situations when the appliance will be disconnected often; Do not use an adapter plug in these
situations. Unplugging the power cord frequently can lead to an eventual breakage of the
ground terminal. The wall power outlet should be replaced by a three-slot (grounding) outlet
instead.

6SAFETY INSTRUCTIONS
CAUTION
To reduce the risk of minor or moderate injury to persons, malfunction, or
damage to the product or property when using this product, follow basic
precautions, including the following:
INSTALLATION
●Take care when installing the product that exhaust or condensation does not damage nearby
property.
●Follow installation instructions exactly to avoid excessive vibration or water leakage.
OPERATION
●This appliance is not intended for use as a precision refrigeration system. Do not use it for special
purposes such as maintaining pets, food, precision machinery, or art objects.
●When installing or moving the appliance, be careful not to pinch, crush, or damage the power
cord.
●Make sure the air inlet and outlet are free from obstructions.
●Use a soft cloth to clean the appliance. Do not use waxes, thinners, or harsh detergents.
●Do not step on or place heavy objects on top of the appliance.
●Do not drink water drained from the appliance.
are used simultaneously.
●Remove the batteries if the remote control is not to be used for an extended period of time.
●Never mix different types of batteries, or old and new batteries for the remote control.
f with clean water.
consult a doctor.
●Do not recharge or disassemble the batteries.
MAINTENANCE
●Never use strong cleaning agents or solvents when cleaning the air conditioner or spray water.
Use a smooth cloth.
Do not expose people, animals, or plants to the cold or hot wind from the air conditioner for
extended periods of time.

ENGLISH
7
SAFETY INSTRUCTIONS
REFRIGERANT (FOR R32 ONLY)
WARNING
●Do not use means to accelerate the defrosting process or to clean, other than those
recommended by the manufacturer.
●The appliance shall be stored in a room without continuously operating ignition sources (for
CAUTION
associated with older units. Please follow all precautions and advisories.
- Use caution while handling and prevent damage to unit. Do not put any holes into product for
any reason. This can cause damage to product and prevent unit from cooling.
- Maintenance and cleaning of unit should be performed by trained personnel. Failure to properly
clean unit can result in damage to the refrigeration system and or the electrical system.
- Make certain that all the air circulation/ventilation openings are free from obstruction.
-
warranties.
-
water heaters or furnaces. Also keep away from electric heaters. Damaged units should be
repaired before storage.
SAVE THESE INSTRUCTIONS

8PRODUCT OVERVIEW
PRODUCT OVERVIEW
Exterior Parts Interior Parts
8
63
1
4
5
7
3
4
5
6
7
1
2
1Evaporator
2Air Guide
3
4
Brace
5
Compressor
6
Condenser
7
Base Pan
Power Cord
1Control Panel
2Remote Controller
3Air Filter
4
5
6Front Grille
7
8Cabinet
Air Outlet
2

ENGLISH
9
INSTALLATION
INSTALLATION
Electrical Data
Power cord may include a current interrupter
device. TEST and RESET buttons are provided
on the plug case. The device should be tested on
TEST button
and then the RESET button. If the TEST button
does not trip or if the RESET button will not stay
engaged, discontinue use of the air conditioner
WARNING
●This appliance should be installed in
accordance with the National Electrical
Code.
●Use of extension cords could cause serious
injury or death.
sihthtiwdrocnoisnetxenaesutonoD-
window air conditioner.
teltuo-itlumrosrotcetorpegrusesutonoD-
adapters with this window air conditioner.
●Never push the TEST button during
operation. Doing so can damage the plug.
sihtesremmiro,yfidom,evomertonoD-
plug. If this device trips, the cause should
be corrected before further use.
CAUTION
●The conductors inside this cord are
surrounded by shields, which monitor
leakage current. These shields are not
grounded. Periodically examine the cord
for any damage. Do not use this product
in the event the shields become exposed.
Avoid shock hazard. This unit cannot be
user-serviced. Do not open the tamper-
resistant sealed portion. All warranties and
performance will be voided. This unit is not
intended to be used as an ON/OFF switch.
Use Wall Receptacle Power Supply
Use 15 A, time
delay fuse or 15 A,
circuit breaker.
Standard 120 V, 3-wire
grounding receptacle rated
15 A / 120 VAC / 60 Hz
for 120 V
RESET
TEST

10 INSTALLATION
Installation Overview
Accessories
Type 'A' Screws
(14)
Type 'B' Screws
(3)
Type 'C' Screws
(5)
Carriage Bolt
(2)
Lock Nut
(2)
Tools Needed
Phillips-head
screwdriver Flat-blade screwdriver Adjustable wrench Level
Tape measure Cutting knife Scissors Pencil
Heatproof foam (2)
(Adhesive backed)
Right curtain
panel
Left curtain
panel
Foam strip
(Non-adhesive)
Foam-PE (2)
(Adhesive backed)
Lower panel
guide (2)
Window locking
bracket
Sill bracket (2)

ENGLISH
11
INSTALLATION
How to Install the Unit
Window Requirements
●This unit is designed for installation in standard
double hung windows with actual opening
widths from 27" to 39".
The top and bottom window sashes must open
16" from the bottom of the upper sash to the
inside sill.
●The height offset between the inside sill and
outside sill must be less than 1 ¼".
27" to 39"
16" min
NOTE
●
wood, masonry, or metal.
Preparation of Cabinet
1Remove 4 screws which fasten the cabinet
at both sides and at the back. (Keep the
screws for later use.)
1To prevent vibration and noise, make sure
the unit is installed securely and firmly.
4Install the unit slightly tilted so the back is
slightly lower than the front (about 1/2").
This will force condensed water to flow to
the outside.
5Install the unit with the bottom between
30" ~60" above the floor level.
2Install the unit where the sunlight dose not
shine directly on the unit.
3The outside of the cabinet must extend out-
ward for at least 12" and there should be no
obstacles, such as a fence or wall, within 20"
from the back of the cabinet because it will
prevent heat radiation of the condenser.
Restriction of outside air will greatly reduce
the cooling efficiency of the air conditioner.
Fence
Awning
Heat
radiation
Cooled air
CAUTION
●All side louvers of the cabinet must remain
exposed to the outside of the structure.
Shipping
Screws
CAUTION
●The unit is heavy. To prevent injury, use
proper lifting techniques when pulling unit
forward from cabinet. Obtain assistance
from another person if possible.
3Cut the window sash seals (Foam-PE)
to the proper length. Peel off the backing
and attach the adhesive-backed foam to
the underside of the window sash and the
bottom of the window frame.
Foam-PE
(Adhesive backed)
2Slide the unit from the cabinet by gripping
the base pan handle and pulling forward
while bracing the cabinet.

12 INSTALLATION
Cabinet Installation
1Open the window. Mark a line on the center
of the inside sill.
Carefully place the cabinet in the window and
align the center hole on the cabinet bottom
front with the bracket using a carriage bolt
and a lock nut.
2Pull the bottom window sash down behind
the upper guide until they meet.
Center Line
Outside Sill
Inside Sill
1 ¼" max.
Center Hole
Inside Sill
Upper Guide
Window Sash
4Insert the lower curtain panel guides into
the bottom of the cabinet. Insert the guides
cabinet.
5
Upper Panel Guide
Right Curtain Panel
Left Curtain Panel
Lower Panel
Guide
Insert the top and bottom rails of the curtain
panels into the upper and lower panel
guides.
CAUTION
●The lower panel guides are easily broken.
Be careful with them when installing the
cabinet.
6Fasten the curtain panels to the unit with 8
type A screws.
Do not pull the window sash down so
tightly that the movement of the curtain
panels is restricted.
NOTE
●

ENGLISH
13
INSTALLATION
4Use 2 type A screws to attach a sill support
to the cabinet track holes on one side. Use
the cabinet track holes that will place the sill
support nearest to the outer edge of the sill.
Repeat with the second sill support on the
opposite side of the cabinet.
5Install the cabinet with a slight tilt (about ½”)
downward on the outside.
Use the bolt and nut to adjust the tilt of the
cabinet.
CAUTION
●Do not drill a hole in the bottom pan.
The product is designed to operate with
approximately ½” of water in the bottom
pan. There is no need to add water if the
pan is dry.
8Use a screwdriver or power drill to attach
the curtain panels to the window sashes
by driving type C screws into the sashes
through the cabinet holes shown in the
Screws (Type A)
Indoor
Outdoor
about ½”
Cabinet
7Pull each curtain panel out until it meets the
window sash track. Pull the bottom window
sash down behind the upper panel guide
until they meet.
Front Angle
Sash Track
Upper Panel
Guide
Inside Window Sill
NOTE
●Do not pull the window sash down so
tightly that the movement of the curtain
panels is restricted.
6Attach the cabinet to the inside sill by
driving 3 type B screws through the cabinet
and into the sill.
Sash Track
Front Angle
NOTE
●Install the cabinet with a very slight
downward tilt toward the outside.
CAUTION
●Do not drill a hole in the bottom pan.
The product is designed to operate with
approximately ½” of water in the bottom
pan.
3Loosely assemble each sill support.
Sill Support
Nut
Bolt
If the distance to the outer window sill is
not that deep, you may not need the bolt
and nut.
NOTE
●

14 INSTALLATION
10 Cut the non-adhesive foam strip to the
proper length and insert it between the
upper window sash and the lower window
sash.
Foam Strip
(Non-adhesive)
11 Attach the window locking bracket with a
type C screw.
Window Locking Bracket
12 Before installing the front grille, pull out the
vent control lever located above the unit
14 Connect the housing.
15 Attach the front grille to the cabinet by
insertingthe tabs the grille into the slots on
the front the cabinet.Push the grille in until
it snaps into place.
13
NOTE
●Guide the lever carefully through the grille
as you push it in.
NOTE
●
NOTE
●See the 'Electrical Data' section for
information on attaching the power cord
to an electrical outlet.
16 Take out the air filter and secure it with 2
type A screws through the front grille.
9With the aid of an assistant, slide the
unit into the cabinet. Reinstall the screws
removed from the cabinet sides in step 1.
CAUTION
● The unit is heavy. Use an assistant to help lift the
● Hold the unit firmly in place until the window
unit and set it in place. Lifting and maneuvering
the unit by yourself could result in injury.
frameis lowered to meet the top surface of the
unit directly behind the upper guide. If the unit
falls from the window, it could cause personal
injury orproperty damage.
control knobs, as shown.
Cut the adhesive-backed heatproof foam
to match the size of the curtain panels.
Remove the backing from the heatproof
foam and attach it to the curtain panels.
Heatproof Foam
Heatproof foam improves the cooling
capability of the air conditioner.
These 2 Type A screws are packaged by
bag on the Front Grille.)

ENGLISH
15
OPERATION
Control Panel and Remote Control
Remote Control
OPERATION
4 3 2 1
5
7
6
1Power
Press to turn the air conditioner ON or OFF.
2Fan Speed
Press to set the fan speed to Low (F1),
Medium (F2), or High (F3).
3Delay ON/OFF Timer
Delay ON - When the air conditioner is off,
set it to automatically turn on from 1 to 24
hours later, at its previous mode and fan
settings.
Delay OFF - When the air conditioner is on,
set it to automatically turn off from 1 to 24
hours later.
NOTE
●Each press of the Timer button advances
the timer by 1 hour. After the last press
the display returns to the temperature
setting.
4Operation Mode
Press the Mode button to cycle between
4 types of air conditioner operation:
Energy Saver / Cool / Fan / Dry.
Cool
Fan - In this mode the fan circulates air
but the compressor does not run. Use
the Fan Speed button to set fan speed to
High, Medium or Low. In this mode, you
cannot adjust the set temperature.
Dry - This mode is ideal for rainy and
damp days to dehumidify the room rather
removed from the room by the combination
of compressor operation and the fan speed
off once the set temperature is reached.
Fan speed cannot be adjusted in Dry mode.
- This mode is ideal on hot days to
cool and dehumidify the room quickly. Use
the Temp buttons to set the desired
room temperature and use the Fan Speed
button to set the desired fan circulation
speed.
Energy Saver - In this mode the
compressor and fan turn off when the set
temperature is achieved. Approximately
every 3 minutes the fan turns on to allow
the unit sensor to accurately determine if
more cooling is needed.
1
3
9
2
8
4
5
TEMP
MODE
FAN
SPEED
ENERGY
SAVER
TIMER
TIMER
CLEAR

16 OPERATION
Wireless Remote Control
Inserting Battery
1Remove the cover on the back of the
remote control.
2Insert the new batteries and make sure that
the + and - terminals of the batteries are
installed correctly.
NOTE
●New batteries are supplied with the air
conditioner for use in the remote control.
NOTE
●This function is available with Cooling
Mode.
●Do not use a rechargeable battery. Make sure
that the battery is new.
●In order to prevent discharge, remove the
battery from the remote control if the air
conditioner is not going to be used for an
extended period of time.
●Keep the remote control away from extremely
hot or humid places.
●To maintain optimal operation of the remote
control, the remote sensor should not be
exposed to direct sunlight.
5Temperature Control
The thermostat monitors room temperature
to maintain the desired temperature. The
thermostat can be set between 60 °F–86 °F
(16 °C–30 °C). Press or arrows to
increase or decrease temperature setting.
6Remote Control Sensor
Clean Filter
The Clean Filter LED lights up to notify you
Temp and
together on the control panel to turn off the
Clean Filter light.
NOTE
control panel, not the remote control.
●This feature is a reminder to clean the air
light turns on after 250 hours of operation.
7
Energy Saver
In this mode the compressor and fan turn
off when the set temperature is achieved.
Approximately every 3 minutes the fan turns
on to allow the unit sensor to accurately
determine if more cooling is needed.
8
Timer Clear
Cancel Timer setting.
9
NOTE
●Auto Restart: If the air conditioner turns off due
to a power outage, it will restart automatically
once the power is restored, with the same
settings as were set before the unit turned off.
●Energy Saver: The unit defaults to the Energy
Saver mode each time the unit is switched on
except in Fan mode or when power is restored
after an electrical power outage.
●The remote control will not function properly if
the AC infrared sensor is exposed to direct light
or if there are obstacles between the remote
controller and the air conditioner.
If the display screen of the remote control begins
to fade, replace the batteries. Insert AAA (1.5 V)
batteries before using the remote control.

ENGLISH
17
OPERATION
Close Open
Air Direction
Ventilation
Push the ventilation lever in to the closed position
to maintain the best cooling performance. Pull
the ventilation lever out to open the vent and
draw fresh air into the room.
of the air conditioner’s louvers.
Direction
levers of the vertical louvers to the left or right.
Direction
up or down.
NOTE
●When the weather is extremely hot, the unit
may turn off automatically to protect the
compressor.
Additional Features
Slinger Fan
This air conditioner is equipped with a slinger
fan. (See drawing.)
The fan’s outer ring picks up the condensed
water from the base pan if the water level gets
high enough. The water is then picked up by the
fan and expelled through the condenser, making
Ring

18 MAINTENANCE
240 °C (104 °F).
3Gently shake the excess water from the
Cleaning the Air Conditioner
●Wipe the front grille and inlet grille with a cloth
dampened in a mild detergent solution.
●Wash the cabinet with mild soap or detergent
and lukewarm water, then polish using liquid
appliance wax.
NOTE
●
condenser coils (outside of unit) should be
checked periodically and cleaned if clogged
with soot or dirt from outside air.
●For repair and maintenance, contact an
Authorized Service Center. See the warranty
page for details or call 1-800-243-0000.
Have your model number and serial number
available. They should be written on page 23 of
this manual.
MAINTENANCE
WARNING
Before cleaning or performing maintenance,
disconnect the power supply and wait until
the fan stops.
Air Filter
if cleaning is necessary. Trapped particles in the
cooling capacity and causing an accumulation of
frost on the evaporator.
Cleaning the Air Filter
1

ENGLISH
19
TROUBLESHOOTING
TROUBLESHOOTING
Before Calling for Service
The appliance is equipped with an automatic error-monitoring system to detect and diagnose problems
at an early stage. If the appliance does not function properly or does not function at all, check the
following before you call for service.
Normal Sounds You May Hear
1High Pitched Chatter
2Sound of Rushing Air
At the front of the unit, you may hear the sound of rushing air being moved by the fan.
3Gurgle/Hiss
Gurgling or hissing noise may be heard due to refrigerant passing through evaporator during
normal operation.
4Vibration
Unit may vibrate and make noise because of poor wall or window construction or incorrect
installation.
5Pinging or Swishing
Droplets of water hitting condenser during normal operation may cause pinging or swishing
sounds.
1
2
3
4
5

20 TROUBLESHOOTING
Problem Possible Cause Solutions
Air conditioner
does not start.
The air conditioner is unplugged. Make sure the air conditioner plug
is pushed completely into the outlet.
The fuse is blown/circuit breaker
is tripped.
Check the house fuse/circuit
breaker box and replace the fuse or
reset the breaker.
Power failure.
If power failure occurs, turn the
mode control to off. When power is
restored, wait 3 minutes to restart
the air conditioner to prevent
tripping of the compressor overload.
The current interrupter device is
tripped.
Press the RESET button located
on the power cord plug. If the
RESET button will not stay
engaged, discontinue use of the air
service technician.
Air conditioner
does not cool as it
should.
Make sure there are no curtains,
blinds, or furniture blocking the front
of the air conditioner.
The temp control may not be set
correctly.
Set the desired temperature to
a level lower than the current
temperature.
weeks. See the 'MAINTENANCE'
section.
The room may have been hot. turned on, you need to allow time
for the room to cool down.
Cold air is escaping. registers and cold air returns.
Cooling coils have iced up. See 'Air conditioner freezing up'
below.
Air conditioner
freezing up. The cooling coils are iced over.
obstruct the air conditioner from
properly cooling the room. Set the
mode control at High Fan or High
Cool.
Water drips
outside. Hot, humid weather. This is normal.