LG W051CE User manual

www.lg.com
EN ENGLISH
*MFL70643104*
Copyright © 2018 - 2021 LG Electronics Inc. All Rights Reserved
MFL70643104
Rev.06_111121
AIR CONDITIONER
Read this owner’s manual thoroughly before operating the appliance
and keep it handy for reference at all times.
OWNER’S MANUAL
TYPE : WINDOW
W051CE SSF

TABLE OF CONTENTS
SAFETY INSTRUCTIONS ..............................................................3
IMPORTANT SAFETY INSTRUCTIONS ..........................................................4
PRODUCT OVERVIEW ..................................................................7
Exterior Parts ....................................................................................................7
Interior Parts......................................................................................................7
INSTALLATION...............................................................................8
Circuit Breaker Installation ................................................................................8
Installation Overview.........................................................................................8
Tools Needed ....................................................................................................8
How to Install the Unit .......................................................................................9
Drain Pipe .........................................................................................................9
Space for Outside Air Flow................................................................................9
Unit Installation................................................................................................10
OPERATION ................................................................................. 11
Control Panel and Remote Control .................................................................11
Wireless Remote Control ................................................................................12
Air Direction.....................................................................................................13
Slinger Fan......................................................................................................13
MAINTENANCE............................................................................14
Air Filter...........................................................................................................14
TROUBLESHOOTING..................................................................15
Before Calling for Service ...............................................................................15
Normal Sounds You May Hear........................................................................15

3
EN
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.

4
EN
IMPORTANT SAFETY INSTRUCTIONS
WARNING
To reduce the risk of explosion, fire, death, electric shock, scalding or
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.
•Keep any required ventilation openings clear of obstruction.
•Compliance with national gas regulations shall be observed.
•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.
•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.
•Do not turn on the circuit breaker or power under condition that front grille, cabinet, control box are
removed or opened. Otherwise, it may cause fire, electric shock, explosion or death.
•If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or
similarly qualified person in order to avoid a hazard.
•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.
•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.
•Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any
other appliance.

5
EN
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 the LG Electronics Customer Information Center.
•Never unplug the appliance by pulling on the power cord. Always grip the plug firmly and pull
straight out from the outlet.
•Do not grasp the power cord or touch the appliance controls with wet hands.
•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 the 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. Children should be supervised to ensure that they do not play with the appliance.
•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,
product failure, electrical shock, or fire.
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
customer should have the wall receptacle and circuit checked by a qualified electrician to make
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.
•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
through the house wiring. The customer should have the circuit checked by a qualified electrician
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.

6
EN
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.
•Do not install the appliance in an area where it is directly exposed to sea air (salt spray).
−Saline conditions are a cause of corrosion. (Particularly, corrosion of the condenser and
evaporator can damage the appliance or impair its performance.)
•Set up windbreak in front of the outdoor unit if installing it in coastal areas.
−Avoid direct exposure to salt winds.
−Install a firm and stiff concrete-wind shield that can withstand salt winds.
•Wear gloves and use caution when unpacking and installing the appliance. Screws or sharp edges
can cause injuries.
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 operate the appliance without the filter securely installed.
•Do not drink water drained from the appliance.
•Be sure to ventilate sufficiently when the air conditioner and a heating appliance such as a heater
are used simultaneously.
•Being exposed to direct airflow for an extended period of time could be hazardous to your health.
•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.
•Stop using the remote control if there is a fluid leak in the battery. If your clothes or skin are
exposed to the leaking battery fluid, wash off with clean water.
•If the leaking battery fluid has been swallowed, rinse the inside of the mouth thoroughly and
consult a doctor.
•Do not recharge or disassemble the batteries.
MAINTENANCE
•Clean the filter every two weeks.
•Never touch the metal parts of the air conditioner when removing the air filter.
•Never use strong cleaning agents or solvents when cleaning the air conditioner or spray water.
Use a smooth cloth.

7
EN
PRODUCT OVERVIEW
Exterior Parts Interior Parts
5
4
7
1
3
2
6
3
4
5
2
1
6
1
Control Panel
1
Evaporator
2
Remote Control
2
Air Guide
3
Air Filter
3
Compressor
4
Front Grille
4
Condenser
5
Cabinet
5
Base Pan
6
Air Outlet
6
Power Cord
7
Horizontal Air Deflector (Vertical Louver)

8
EN
INSTALLATION
Circuit Breaker Installation
Read thoroughly and follow all directions provided.
A circuit breaker must be installed between the power source and the unit if the plug is not used (see
illustration below).
Main Power sourceMain Power source
Circuit BreakerCircuit Breaker
Use a circuit breaker or timeUse a circuit breaker or time
delay fuse.delay fuse.
NOTE
•Use 15 A circuit breaker.
Installation Overview
FoamFoam
Drain pipeDrain pipe
Tools Needed
Phillips-head screwdriver Flat-blade screwdriver Pencil Level
Tape measure Cutting knife Scissors

9
EN
How to Install the Unit
1 Measure the space for installation to assure a
good fit. The air conditioner must be installed
firmly into place to prevent vibration and noise.
2 Avoid exposure to direct sunlight.
3 Remove all obstacles from the rear of the
unit. There must be at least 50 cm (20 in.)
of cleared space around the rear of the unit.
Obstacles restricting the airflow may reduce
the cooling efficiency of the unit.
4 The unit should be installed with a slight tilt
towards the outside to allow condensed water
to drain. (About 10~15 mm or 1/4 bubble with
Level)
Fence
Awning
Heat
radiation
Cooled air
10~15 mm
Over 50 cm
Foam
70-150 cm
Level
1/4 Bubble
CAUTION
•The external grille must be exposed outside for
air discharge.
Drain Pipe
In humid weather, excess water may cause the
base pan to overflow. To drain the water, remove
the drain cap and secure the drain pipe to the rear
hole of the base pan.
Press the drain pipe into the hole by pushing down
and away from the fins to avoid injury.
Hang
Drain Cap
Push
Drain Pipe
CAUTION
•Be careful when inserting the drain pipe. Push
away from the sharp fin area to avoid slipping
injuring yourself.
Space for Outside Air Flow
100 mm minimum
AIR IN
AIR IN
AIR OUT
OPTION A
100 mm
100 mm
LOUVRE
FRONT
45° BRICK CUT
AWAY
TO CLEAR LOUVRES
45° BRICK CUT AWAY
TO CLEAR LOUVRES
BRICK
WALL
AIR INAIR IN
BRICK
WALL
AIR OUT
TOP
VIEW
OPTION B

10
EN
Unit Installation
CAUTION
•The power cord must be connected to an
independent circuit. The green wire must be
grounded.
Stuff the foam between the top of the unit and the
wall to prevent air and insects from getting into the
room.
The FoamThe Foam

11
EN
OPERATION
Control Panel and Remote Control
6
7
1234
5
Remote Control
1
4
2
5
3
NOTE
•The feature may be changed according to the type of model.
1
Power
Press to turn the air conditioner ON or
OFF.
Energy Saver (Ahorro Energía) - 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.
Cool (Frío) - 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 (Nivel
Vent.) button to set the desired fan circulation
speed.
Fan (Vent.) - In this mode the fan circulates air
but the compressor does not run. Use the Fan
Speed (Nivel Vent.) button to set fan speed to
High, Medium or Low. In this mode, you cannot
adjust the set temperature.
Dry (Deshum) - This mode is ideal for rainy
and damp days to dehumidify the room
rather than cooling it significantly. Humidity is
removed from the room by the combination of
compressor operation and the fan speed fixed
at Low. The compressor and fan turn off once
the set temperature is reached. Fan speed
cannot be adjusted in Dry (Deshum) mode.
2
Fan Speed
Press to set the Fan Speed (Nivel Vent.) to
Low (Bajo) (F1), Medium (Medio) (F2) or
High (Alto) (F3).
3
Delay 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 (Control
Tiempo) button advances the timer by
1 hour. After the last press the display
returns to the temperature setting.
4
Operation Mode
Press the Mode (Modo) button to cycle
between 4 types of air conditioner
operation: Energy Saver (Ahorro Energía) /
Cool (Frío) / Fan (Vent.) / Dry (Deshum)

12
EN
5
Temperature Control
The thermostat monitors room
temperature to maintain the desired
temperature. The thermostat can be set
between 16 °C–30 °C (60 °F–86 °F).
Press or arrows to increase or
decrease temperature setting.
6
Remote Control Sensor
7
Clean Filter
The Clean Filter (Limpieza Filtro) LED
lights up to notify you that the filter needs
to be cleaned. After cleaning the filter,
press Temp and together on the
control panel to turn off the Clean Filter
(Limpieza Filtro) light.
NOTE
•The filter reset must be done using the
control panel, not the remote control.
•This feature is a reminder to clean the
air filter for more efficient operation.
The LED light turns on after 250 hours
of operation.
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 (Ahorro Energía) : The unit
defaults to the Energy Saver (Ahorro Energía)
mode each time the unit is switched on except
in Fan (Vent.) 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.
Wireless Remote Control
Inserting Batteries
1 Push out the cover on the back of the remote
control with your thumb.
2 With the plus and minus poles facing as
marked, and insert two new AAA 1.5 V
batteries.
3 Reattach the cover.
NOTE
•New batteries are supplied with the air
conditioner for use in the remote control.
•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.

13
EN
Air Direction
Adjusting the air direction using the horizontal air
deflector control.
Using the control tabs, the air flow can be directed
to the left, right, straight ahead, or any combination
of these directions.
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 the
air conditioner more efficient.
RingRing

14
EN
MAINTENANCE
WARNING
•Before cleaning or performing maintenance,
disconnect the power supply and wait until the
fan stops.
Air Filter
Check the air filter at least twice a month to see
if cleaning is necessary. Trapped particles in the
filter can build up and block the airflow, reducing
cooling capacity and causing an accumulation of
frost on the evaporator.
Cleaning the Air Filter
1 Remove the air filter from the front grille by
pulling the filter forward and then up slightly.
2 Wash the filter using lukewarm water below
40 °C (104 °F).
3 Gently shake the excess water from the filter.
4 Dry the filter in the shade.
5 Insert the filter into the Front grille.
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
•To ensure continued peak efficiency, the
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 a LG
Electronics Customer Information Center.
See the warranty card for details or call
55-5321-1919. Have your model number and
serial number available.

15
EN
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
1
2
3
5
4
1
High Pitched Chatter
Today’s high efficiency compressors may have a high pitched chatter during the cooling cycle.
2
Sound of Rushing Air
At the front of the unit, you may hear the sound of rushing air being moved by the fan.
3
Gurgle/Hiss
Gurgling or hissing noise may be heard due to refrigerant passing through evaporator during
normal operation.
4
Vibration
Unit may vibrate and make noise because of poor wall or window construction or incorrect
installation.
5
Pinging or Swishing
Droplets of water hitting condenser during normal operation may cause pinging or swishing
sounds.

16
EN
Problem Possible Causes & Corrective Action
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.
Air conditioner does
not cool as it should.
Airflow is restricted.
•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.
The air filter is dirty.
•Clean the filter at least every 2 weeks. See the ‘MAINTENANCE (Cleaning
the Air Filter)’ section.
The room may have been hot.
•When the air conditioner is first turned on, you need to allow time for the
room to cool down.
Cold air is escaping.
•Check for open fumace floor 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.
•Ice may block the air flow and obstruct the air conditioner from properly
cooling the room. Set the Fan Speed High at Fan or Cool mode.
Water drips outside. Hot, humid weather.
•This is normal.

17
EN
Problem Possible Causes & Corrective Action
Water drips Indoors.
The air conditioner is not tilted to the outside.
•For proper water disposal, make sure the air conditioner slants slightly from
the cabinet front to the rear.
Water collects in
base pan.
Moisture removed from air and drains into base pan.
•This is normal for a short period in areas with little humidity; normal for a
longer period in very humid areas.
Air conditioner turns
on and off rapidly.
Dirty air filter - air restricted.
•Clean air filter.
Outside temperature extremely hot.
•Refer to installation instructions or check with installer.
Noise when unit is
cooling.
Air movement sound.
•This is normal. If too loud, set to lower FAN Speed.
Window vibration - poor installation.
•Refer to installation instructions or check with installer.
Room too cold. Set temperature too low.
•Increase set temperature.
Remote sensing
deactivating
prematurely.
Remote control not located within range.
•Place remote control within 6.1 m & 120° radius of the front of the unit.
Remote control signal obstructed.
•Remove obstruction.
NOTE
•If you see “CH” in the display, please call 55-5321-1919.
Model Voltage Frequency Cooling Heating
Power Current Power Current
W051CE SSF 115 V~ 60 Hz Nor. 450 W
Max. 710 W
Nor. 4.2 A
Max. 6.4 A - -

LG ELECTRONICS MEXICO,S.A. DE C.V.
Sor Juana Inés de la Cruz No. 555
Col. San Lorenzo Industrial
Tlalnepantla de Baz, Estado de México C.P. 54033
Tel. [phone]
Página web http://www.lg.com.mx