LG LM78SXT User manual

www.lg.com
OWNER'S MANUAL
FRIDGE&
FREEZER
Read this owner's manual thoroughly before operating the appliance and keep
it handy for reference at all times.
Copyright © 2019-2022 LG Electronics Inc. All Rights Reserved

TABLE OF CONTENTS This manual may contain images or
content different from the model you
purchased.
This manual is subject to revision by the
manufacturer.
SAFETY INSTRUCTIONS .......................................................3
About This Manual...................................................................................... 3
IMPORTANT SAFETY INSTRUCTIONS.................................................... 3
INSTALLATION ......................................................................11
Before Installation..................................................................................... 11
Removing the Doors and Drawer ............................................................. 12
Refitting the Doors and Drawer ................................................................ 15
Leveling the appliance.............................................................................. 15
Aligning the Doors .................................................................................... 15
Connecting the Water Line ....................................................................... 16
Connecting the Appliance......................................................................... 17
Moving the Appliance ............................................................................... 17
Earth (Grounding) Construction (Optional)............................................... 18
OPERATION ...........................................................................19
Parts and Functions.................................................................................. 19
Notes for Operation .................................................................................. 24
Using Control Panel.................................................................................. 26
Water and Ice Dispenser .......................................................................... 28
Automatic Icemaker.................................................................................. 28
Removing the Ice Storage Bin.................................................................. 29
Vegetable Drawer ..................................................................................... 30
Glide‘N’ Serve ( * ).................................................................................... 30
Door Mullion ............................................................................................. 31
Door-in-Door ( * ) ...................................................................................... 31
InstaView Function ( * ) ............................................................................ 31
Using the Folding Shelf ( * )...................................................................... 32
Other Functions ........................................................................................ 32
SMART FUNCTIONS .............................................................33
LG ThinQ Application................................................................................ 33
Smart Diagnosis ....................................................................................... 35
MAINTENANCE......................................................................36
Notes for Cleaning.................................................................................... 36
Cleaning the Condenser Cover ................................................................ 36
Cleaning the Water Dispenser.................................................................. 37
Cleaning the Fridge Shelf ......................................................................... 37
Cleaning the Vegetable Drawer................................................................ 38
Cleaning the Door-in-Door ( * )................................................................. 38
Replacing the Water Filter ........................................................................ 39
TROUBLESHOOTING ...........................................................40

3
The following safety guidelines are intended to prevent
unforeseen risks or damage from unsafe or incorrect
operation of the appliance.
The guidelines are separated into ‘WARNING’ and ‘CAUTION’
as described below.
This symbol is displayed to indicate matters and
operations that can cause risk. Read the part with this
symbol carefully and follow the instructions in order to
avoid risk.
WARNING
This indicates that the failure to follow the instructions can
cause serious injury or death.
CAUTION
This indicates that the failure to follow the instructions can
cause the minor injury or damage to the product.
About This Manual
Read the technical instructions before installing this appliance.
Read the instructions for use before using this appliance.
IMPORTANT SAFETY INSTRUCTIONS
WARNING
To reduce the risk of explosion, fire, death, electric shock,
injury or scalding to persons when using this product,
follow basic precautions, including the following:
Children in the Household
•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.
•If the appliance is equipped with a lock (some models only), keep
the key out of reach of children.
SAFETY INSTRUCTIONS EN

4
EN
Installation
•This appliance should only be transported by two or more people
holding the appliance securely.
•Ensure that the socket outlet is properly grounded, and that the
earth pin on the power cord is not damaged or removed from the
power plug. For more details on grounding, inquire at an LG
Electronics customer information centre.
•This appliance is equipped with a power cord having an
equipment-grounding conductor and a grounding power plug. The
power plug must be plugged into an appropriate socket outlet that
is installed and grounded in accordance with all local codes and
ordinances.
•If the power cord is damaged or the hole of the socket outlet is
loose, do not use the power cord and contact an authorized
service centre.
•Do not plug the appliance into a multi socket adapter which does
not have a power cable (mounted).
•Do not modify or extend the power cable.
•The appliance should be connected to a dedicated power line
which is separately fused.
•Do not use a multi socket outlet which is not properly grounded
(portable). In case of using a properly-grounded multi socket outlet
(portable), use the multi socket outlet with the current capacity of
the power code rating or higher and use the multi socket outlet
only for the appliance.
•Install the appliance in a place where is easy to unplug the power
plug of the appliance.
•Be careful not to point the power plug up or let the appliance lean
against the power plug.
•Install the appliance on a firm and level floor.

5
EN
•Do not install the appliance in a damp and dusty place. Do not
install or store the appliance in any outdoor area, or any area that
is subject to weathering conditions such as direct sunlight, wind,
rain, or temperatures below freezing.
•Do not place the appliance in direct sunlight or expose it to the
heat from heating appliances such as stoves or heaters.
•Be careful not to expose the rear of the appliance when installing.
•Be careful not to let the appliance door fall during assembly or
disassembly.
•Be careful not to pinch, crush, or damage the power cable during
assembly or disassembly of the appliance door.
•Do not connect a plug adapter or other accessories to the power
plug.
Operation
•Do not use the appliance for any purpose (storage of medical or
experimental materials or shipping) other than any domestic
household food storage use.
•Unplug the power plug during a severe thunderstorm or lightening
or when not in use for a long period of time.
•Do not touch the power plug or the appliance controls with wet
hands.
•Do not bend the power cable excessively or place a heavy object
on it.
•If water penetrates electrical parts of the appliance, disconnect
power plug and contact an LG Electronics customer information
centre.
•Do not place hands or metallic objects inside the area emitting the
cold air, cover or heat releasing grille on the back.

6
EN
•Do not apply excessive force or impact to the back cover of the
appliance.
•Do not put animals, such as pets into the appliance.
•Be careful of nearby children when you open or close the
appliance door. The door may bump the child and cause injury.
•Avoid the danger of children getting trapped inside the appliance.
A child trapped inside the appliance can cause suffocation.
•Do not place heavy or fragile objects, containers filled with liquid,
combustible substances, flammable objects (such candles, lamps,
etc.), or heating devices (such as stoves, heaters, etc.) on the
appliance.
•If there is a gas leakage (isobutane, propane, natural gas, etc.),
do not touch the appliance or power plug and ventilate the area
immediately. This appliance uses a refrigerant gas
(isobutane,R600a). Although it uses a small amount of the gas, it
is still combustible gas. Gas leakage during appliance transport,
installation or operation can cause fire, explosion or injury if
sparks are caused.
•Do not use or store flammable or combustible substances (ether,
benzene, alcohol, chemical, LPG, combustible spray, insecticide,
air freshener, cosmetics, etc.) near the appliance.
•Immediately unplug the power plug and contact an LG Electronics
customer information centre if you detect a strange sound, odour,
or smoke coming from the appliance.
•Fill with potable water only into icemaker or dispenser water tank.
•Do not damage the refrigerant circuit.
•Do not place any electronic appliance (such as heater and mobile
phone) inside the appliance.

7
EN
Maintenance
•Disconnect the power cord before cleaning the appliance or
replacing the inside lamp (where fitted).
•Securely plug the power plug in the socket outlet after completely
removing any moisture and dust.
•Never unplug the appliance by pulling on the power cable. Always
grip the power plug firmly and pull straight out from the socket
outlet.
•Do not spray water or inflammable substances (toothpaste,
alcohol, thinner, benzene, flammable liquid, abrasive, etc.) over
the interior or exterior of the appliance to clean it.
•Do not clean the appliance with brushes, cloths or sponges with
rough surfaces or which are made of metallic material.
•Only qualified service personnel from LG Electronics service
centre should disassemble, repair, or modify the appliance.
Contact an LG Electronics customer information centre if you
move and install the appliance in a different location.
•Do not use a hair drier to dry the inside of the appliance or place
a candle inside to remove the odours.
•Do not use mechanical devices or other means to accelerate the
defrosting process.
•Connect the water supply line (for plumbed models only) to a
potable water source only. Otherwise, impurities in the water may
cause illness.
Disposal
•When discarding the appliance, remove the door gasket while
leaving the shelves and baskets in place and keep children away
from the appliance.

8
EN
•Dispose of all packaging materials (such as plastic bags and
styrofoam) away from children. The packaging materials can
cause suffocation.
Technical Safety
•Keep ventilation openings, in the appliance enclosure or in the
built-in structure, clear of obstruction.
•Do not use electrical appliances inside the refrigerator.
•The refrigerant and insulation blowing gas used in the appliance
require special disposal procedures. Consult with service agent or
a similarly qualified person before disposing of them.
•Refrigerant leaking out of the pipes could ignite or cause an
explosion.
•The amount of refrigerant in your particular appliance is shown on
the identification plate inside the appliance.
•Never start up an appliance showing any signs of damage. If in
doubt, consult your dealer.
•This appliance is intended to be used in household and similar
applications only. It should not be used for commercial, or catering
purposes, or in any mobile application such as a caravan or boat.
•Do not store explosive substances such as aerosol cans with a
flammable propellant in this appliance.
Risk of Fire and Flammable Materials
This symbol alerts you to flammable materials that
can ignite and cause a fire if you do not take care.
•This appliance contains a small amount of isobutane refrigerant
(R600a), but it is also combustible. When transporting and
installing the appliance, care should be taken to ensure that no
parts of the refrigerating circuit are damaged.

9
EN
•If a leak is detected, avoid any naked flames or potential sources
of ignition and air the room in which the appliance is standing for
several minutes. In order to avoid the creation of a flammable gas
air mixture if a leak in the refrigerating circuit occurs, the size of
the room in which the appliance is used should correspond to the
amount of refrigerant used. The room must be 1 m² in size for
every 8 g of R600a refrigerant inside the appliance.
•When positioning the appliance, ensure the supply cord is not
trapped or damaged.
•Do not locate multiple portable socket-outlets or portable power
supplies at the rear of the appliance.
CAUTION
To reduce the risk of minor injury to persons, malfunction,
or damage to the product or property when using this
product, follow basic precautions, including the following:
Installation
•Do not tilt the appliance to pull or push it when transporting.
•Make sure not to get a body part such as a hand or foot stuck
while moving the appliance.
Operation
•Do not touch frozen food or the metal parts in the freezer
compartment with wet or damp hands. It may cause frostbite.
•Do not place glass containers, bottles or cans (especially those
containing carbonated drinks) in the freezer compartment, shelves
or ice bin that will be exposed to temperatures below freezing.
•The tempered glass on the front side of the appliance door or the
shelves can be damaged by an impact. If it is broken, do not
touch it with hands.
•Do not place heavy objects on top of the door in door.
•Do not use the door in door as a chopping board and ensure it is
not scratched by a sharp tool, as this may cause appliance
damage.
•Do not hang from the appliance door, storage room, shelf or fridge
door in door or climb up into it.

10
EN
•Do not store an excessive amount of water bottles or containers
for side dishes on the door baskets.
•Prevent animals from nibbling on the power cable or water hose.
•Do not open or close the appliance door with excessive force.
•If the hinge of the appliance door is damaged or operates
improperly, stop using the appliance and contact an authorized
service centre.
•Do not clean glass shelves or covers with warm water when they
are cold.
•Never eat frozen foods immediately after they have been taken
out in the freezer compartment.
•Do not insert your hands into the mechanical part of the automatic
icemaker such as the ice bin or the ice dispenser.
•Do not use a thin crystal cup or chinaware when dispensing.
•Do not remove the cover of the automatic icemaker. Touching any
mechanical part of the automatic icemaker. It may result in injury.
•Do not open the door of the appliance with the door in door open,
or do not open the door in door while the door of the appliance is
open. The door in door may be struck by the edge of the
appliance and damaged.
•Make sure not to get a hand or foot stuck upon opening or closing
the appliance door or door in door.
Maintenance
•Do not insert the shelves upside down. The shelves may fall.
•To remove frost from the appliance, contact an LG Electronics
customer information centre.