
24 HOURS A DAY, 7 DAYS A WEEK FOR LG CUSTOMER SERVICE
para el Servicio LG (Atencin al Cliente) 24 horas al da, 7 das a la semana
LSC27990TT

2
Entry
Important safety instructions
Identification of parts
Where to install
Door removal
Install the freezer and refrigerator compartment doors
Water supply installation
Water connection instruction guide
Height adjustment
External Equipment Connections
Setup
Adjusting the temperatures and functions
Temperature
Dispenser
Menu
Shelf
Humidity control in the vegetable compartment
OptiFresh temperature bin
OptiFresh
Location of foods
Storing foods
How to remove and replace parts
General information
Cleaning
Troubleshooting
Warranty
Zip code
Table of Contents
Introduction
Installation
Operation
Suggestion on
food storage
Care and
maintenance
3
3
4
5
6
7
7
8
11
12
13
13
16
37
14
15
37
38
38
39
40
41
44
44
45
50
151

Entry
The model and serial numbers are found on the inner case or back of refrigerator
compartment of this unit. These numbers are unique to this unit and not
available to others. You should record requested information here and retain
this guide as a permanent record of your purchase. Staple your receipt here.
Date of purchase
Dealer
Dealer address
Dealer phone
Model
Serial
Before use, this refrigerator must be properly installed and located in accordance with
the installation instructions in this manual.
Never unplug your refrigerator by pulling on the power cord. Always grip the plug firmly
and pull it straight out from the outlet.
When moving your appliance away from the wall, be careful not to roll over the power
cord or to damage it in any way. Do not crush or damage the water line.
After your refrigerator is in operation, do not touch the cold surfaces in the freezer
compartment, particularly when your hands are damp or wet. Skin could adhere to
these extremely cold surfaces.
Unplug the power cord from the power outlet for cleaning or other requirements. Never
touch it with wet hands because you can get an electric shock or be injured.
Never damage, bend, kink, pull out, or twist the power cord because damage to the
power cord can cause product failure, fire, or electric shock. If you have doubts the
appliance is properly grounded, consult a qualified electrician.
Never place glass products in the freezer because they may be broken from expansion
when their contents are frozen.
Never put your hands within the ice storage bin of the automatic icemaker. You can be
injured by the operation of the automatic icemaker.
The appliance is not intended for use by young children without supervision.
Young children should be supervised to ensure that they do not play with the appliance.
Never allow anyone to climb, sit, stand, or hang on the door. These actions may
damage the refrigerator and even tip it over, causing severe personal injury.
Before you move your refrigerator into its final location, it is
important to make sure you have the proper electrical connection.
A 115 Volt, 60 Hz., AC only, 15 or 20 amp, fused and grounded
single-outlet circuit is required. Use an outlet that cannot be turned
off by a switch. Do not use an extension cord.
The refrigerator-freezer should be so positioned that the supply
plug is accessible for quick disconnection in the event of an
emergency.
If the supply cord is damaged, it must be replaced by the manufacturer or its service
agent or a similarly qualified person in order to avoid any hazard.
Do not modify or extend the Power Cord length.
It may cause electric shock or fire.
Introduction
3
Important safety instructions
Recommended
grounding
method
Accessibility of
supply plug
Supply cord
replacement
Warning

4
DANGER: Risk of child entrapment.
Before you throw away your old refrigerator or freezer take off the doors but leave the
shelves in place so that children may not easily climb inside.
The appliance is not intended for use by young children without supervision.
Young children should be supervised to ensure that they do not play with the appliance.
Don’t store or use gasoline or other flammable vapor and liquids in the vicinity of this or
any other appliance.
In the event of an electric short circuit, grounding (earthing) reduces the risk of electric
shock by providing an escape wire for the electric current.
In order to prevent possible electric shock, this appliance must be grounded.
Improper use of the grounding plug can result in an electric shock. Consult a qualified
electrician or service person if the grounding instructions are not completely
understood, or if you have doubts on whether the appliance is properly grounded.
Child entrapment
warning
Don’t store
Grounding
Introduction
•
Parts, features, and options vary by model. Your model may not include every option.
NOTE
Freezer
Compartment
Refrigerator
Compartment
Dairy Corner
Water Filter
Lamp
Lamp
Automatic
Icemaker
Shelf
Door Rack
Drawer
Door Rack
Lower Cover
Shelf
Shelf
Snack Drawer
Lamp
Vegetable Drawer
Door Rack
Door Rack
OptiFresh Room
Model LSC27990TT
Identification of parts

Installation
5
Strong
and even floor
A proper
distance from
adjacent items
Where water
supply can be
easily connected
in a dry place
Where it is free
from heat
Please keep the refrigerator at a proper
distance from other things. Too small a
distance from adjacent items may result in
lowered freezing capability and increased
electricity charges consumption.
Select a place where a water supply can be
easily connected between the automatic ice
maker and dispenser.
Installing the refrigerator in a wet or damp
area may cause rust and may be an electrical
hazard.
If this refrigerator is installed where the
ambient temperature is high, the freezing
capacity is deteriorated and the cost of
electricity used increases.
Where to install
Unstable installation may cause vibration and
noise. If the floor to install the refrigerator on
is not even, make the refrigerator level by
rotating the height adjusting screw.
•
Install the refrigerator at a place where the ambient temperature is 5˚C ~ 43˚C
(41˚F~110˚F).
Ambient temperature outside this range may cause product malfunction. Also, the
tube between the dispenser and automatic ice maker may freeze.
NOTE
Bottom Pad
More than
4"(10 cm)
to top
Height
More than
2"(5 cm)
to back

Door removal
Electric Shock Hazard
Disconnect electrical supply to refrigerator before installing.
Failure to do so could result in death or serious injury.
If your entrance door is too narrow for the
refrigerator to pass through, remove the refrigerator
door and pass the refrigerator laterally.
Remove the lower cover by lifting upward, and then pull
up the water feed tube while pressing the release ring
shown in the figure to the right.
Remove lower
cover and
water feed tube
Warning
Remove the
freezer
compartment
door
Remove the
refrigerator
door
Installation
6
1) Remove the hinge cover by loosening the
screws. Disconnect all connections except
the ground line.
2) Remove the keeper by rotating it counter
clockwise and then lifting the upper
hinge up
.
3) Remove the freezer compartment door by
lifting it upward. This time, the door should
be lifted enough for the water feed tube to
be completely pulled out.
1) Loosen the hinge cover screws and remove
the cover. Remove connection wire, if any,
except for the ground line.
2) Remove keeper by rotating it clockwise ()
and then remove the upper hinge by lifting
it up ().
3) Remove the refrigerator compartment door
by lifting it up.
•
If a tube end is deformed or abraded, trim the part away.
Disconnecting the tube under the door causes about
1
/
2
gallon (2 liters) water to flow
out. Please put up a big container to prevent it.
NOTE
•
When removing the upper hinge, be careful that the door does not fall forward .
NOTE
•
After removing the door, take it into the kitchen where you are installing the refrigerator.
Lay it down on a blanket and be careful to avoid damaging the water feed tube.
NOTE
Lower Cover
Lower hinge
Lower Hinge
Keeper
Water Feed Tube
Connection
Wires
Connection
Wires
Hinge
Cover
Upper Hinge
Upper Hinge
Keeper
Upper Hinge
Ground Line

7
Installation
Install the freezer and refrigerator
compartment doors
Water supply installation
Pass the refrigerator laterally through the access
door as shown in the right figure.
Automatic icemaker operation needs water pressure of 21~121 psi (1.5~8.5
kgf/cm2) (That is, an instant paper cup (6 oz. or 180 cc) will be fully filled within
3 seconds.)
If water pressure is less than 21 psi (1.5 kgf/cm2). It is necessary to purchase a
separate pressure pump for normal automatic icemaking and cool water feed.
Keep the total length of the feed water pipe tube within 26’ (8 m). Be careful for the
tube to avoid being kinked. If the tube is longer than 26’ (8 m), the pressure may
drop to an unacceptable level.
Install the water supply line where it will not be affected by heat.
Connect to potable water supply only.
Mount them in the reverse sequence of removal after they pass through the access
door.
Pass the
refrigerator
Before
installation
Warning
This appliance contains fluids (refrigerant and lubricant) and is made of parts and
materials which are reusable and/or recyclable.
All the important materials should be sent to the collection center of waste material
and can be reused after rework (recycling). For recycling, please contact the local
agency.
Disposal of the
old appliance
1
2
3
4
5
Max
F
R
Z
T
EMP
REF
T
E
M
P
Min
5
4
3
2
1
M
a
x

8
Water connection instruction guide
Read all directions carefully before you begin.
Connecting
the refrigerator
to a water source
Connect to potable water supply only.
Warning
•
If operating the refrigerator before installing the water connection, turn the icemaker
to the OFF position to prevent operation without water.
•
All installations must be in accordance with local plumbing code requirements.
•
Use copper tubing and check for leaks.
•
Install copper tubing only in areas where temperatures will remain above freezing.
•
It may take up to 24 hours for your icemaker to begin producing ice.
IMPORTANT
The icemaker water valve contains a flow washer which is used as a water
pressure regulator.
The icemaker needs to be connected to a cold water line with water pressure
21 psi (lb/inch2)
Cold water supply
Standard screwdriver
7
/
16
-inch and
1
/
2
-inch open-end wrenches or two adjustable wrenches
1
/
4
-inch nut driver
1
/
4
-inch drill bit
Hand drill or electric drill (properly grounded)
Tools required
•
Your refrigerator dealer has a kit available with a 1/4-inch saddle-type shut-off valve,
a union, and copper tubing. Before purchasing, make sure a saddle-type valve
complies with your local plumbing codes. Do not use a piercing-type or 3/16-inch
saddle valve which reduces water flow and clogs more easily.
NOTE
Installation

9
1. Unplug the refrigerator or disconnect power.
2. Turn OFF the main water supply. Turn on the nearest faucet to relieve the
pressure on the line. It may help to open an outside faucet to allow the water to
drain from the line in the house.
3. Find a
1
/
2
-inch vertical COLD water pipe near the refrigerator.
Connect
the tubing to
water line
•
Horizontal pipe will work, but the following precaution must be taken: Drill on the top of
the pipe, not the bottom. This will help keep water away from the drill. This also keeps
normal sediment from collecting in the valve.
NOTE
4. To determine the length of copper tubing you will need, measure from the
connection on the lower left rear of the refrigerator to the water pipe. Add 7
feet (2.1m) to allow for moving refrigerator for cleaning. Use
1
/
4
-inch O.D.
(outside diameter) copper tubing. Be sure both ends of copper tubing are cut
square.
5. Using a drill, drill a
1
/
4
-inch hole in the cold water pipe you have selected.
6. Fasten shut-off valve to cold water pipe with pipe clamp. Be sure the outlet
end is solidly in the
1
/
4
" drilled hole in the water pipe and the washer is under
the pipe clamp. Tighten the packing nut. Tighten the pipe clamp screws
carefully and evenly so the washer makes a watertight seal. Do not
overtighten or you may crush the copper tubing, especially if soft (coiled)
copper tubing is used. Now you are ready to connect the copper tubing.
7. Slip the compression sleeve and the compression nut onto the copper tubing
as shown. Insert the end of the tubing into the outlet end squarely as far as it
will go. Tighten the compression nut onto the outlet end with a wrench. A flare
nut wrench works best, but an open end wrench will suffice. Do not
overtighten.
8. Place the free end of the tubing into a container or sink, and turn on the main
water supply. Flush out the tubing until the water is clear. Turn off the shutoff
valve on the water pipe. Coil the copper tubing as shown below.
Cold Water Pipe
Pipe Clamp
Coil of Polyethylene or
Copper Tubing
Compression NutCompression Sleeve
Shut Off Valve
Packing Nut

10
Before making the connection to the refrigerator, be sure the refrigerator
power cord is not plugged into the wall outlet.
• If your refrigerator does not have a water filter, we recommend installing
one. If your water supply has sand or particles, that could clog the screen of
the refrigerator’s water valve. Install the filter in the water line near the
refrigerator.
1. Remove the plastic flexible cap from the water valve.
2. Place the compression nut and ferrule (sleeve) onto the end of the tubing as
shown.
3. Insert the end of the copper tubing into the connection as far as possible. While
holding the tubing, tighten the fitting.
Connect the tubing to
the refrigerator
Tighten any connections that leak.
Plug In the Refrigerator
Arrange the coil of copper tubing behind the refrigerator so it does not vibrate
against the back of the refrigerator or against the wall. Push the refrigerator
back to the wall.
Start the lcemaker
Set the icemaker switch to the ON position The icemaker will not begin to
operate until it reaches its operating temperature of 15 °F (-9 °C). It will then
begin operation automatically.
Turn the water on at
the shutoff valve
Tubing Clamp
1/4
"
Compression
Nut
Ferrule
(sleeve)
Refrigerator Connection
1/4
"
Tubing

11
Height adjustment
Level them by inserting a flat (
-
type) driver into the groove of the left height adjusting
screw and rotating it clockwise ().
Level them by inserting a flat (
-
type) driver into the groove of the right height
adjusting screw and rotating it clockwise ().
The refrigerator door will close smoothly by raising the front side by adjusting the
height adjusting screw. If the door does not close properly because it is improperly
adjusted, the performance of the refrigerator will be affected.
If the freezer
compartment door
is lower than the
refrigerator
compartment door
If the freezer
compartment door
is higher than the
refrigerator
compartment door
After leveling the
door height
Installation

12
Installation
Antenna or Cable Service without a Cable Box Connections
For optimum picture quality, adjust antenna direction if needed.
Antenna Connection
External Equipment Connections
wall antenna
socket
VHF antenna
UHF antenna
outdoor
antenna
Single-family Dwellings /Houses
(Connect to wall jack for outdoor antenna)
Be careful not to bend the bronze wire
when connecting the antenna.
Bronze Wire
Main Power
Antenna jack
Bronze Wire
RF coaxial wire (75 ohm)
Turn clockwise to tighten.
Multi-family Dwellings/Apartments
(Connect to wall antenna socket)
Typical
Antennas
Direct
Connection
VCR
Connection Panel
Cable Box Connection Panel
Connection
1. Connect the audio/video out sockets of the
VCR to audio/video in sockets of the set.
2. Press the TV/AV/RADIO button to select AV.
3. Press the PLAY button on the VCR.
The VCR playback picture
appears on the screen.
Connection
1. Use the TV/AV/RADIO button on
the remote control to select TV.
2. Tune to cable service provided
channels using the cable box.
- After subscribing to a local cable TV service and installing a converter, you can
watch cable TV programming.
- For further cable TV information, contact a local cable service provider.
In a poor signal area to improve picture quality,
purchase and install a signal amplifier.
If the antenna is not installed properly, contact
your dealer for assistance.
Connecting
a VCR / DVD
Cable TV
Connections
• If you have a mono VCR, connect the audio cable from the VCR to the AUDIO
L/MONO socket of the set.
NOTE

13
Operation
Setup
Adjusting the temperatures and functions
When your refrigerator is first installed, allow it to stabilize at normal operating
temperatures 2~3 hours prior to filling it with fresh or frozen foods.
If operation is interrupted, wait 5 minutes before restarting.
(Hidden)
Menu Button
Dispenser Light Button
Door Alarm Button
Dispenser Button
Temperature Button
Calendar and Anniversary Reminder
Lock Button
Function Display Board
Select
•
Your model may not include every option.
NOTE
About defective pixels
This LCD display contains hundreds of
thousands of individual pixels. LCD displays
typically contain a small number of pixels that do
not function normally. Your display has been
inspected and is in compliance with
manufacturer’s specifications, indicating that any
pixel defects do not affect the operation or use
of your display. On a display of this size, 4 or
fewer defective pixels are considered to be
normal and are not grounds for exchange or
refund.

Operation
14
Temperature
- You can adjust the freezer and refrigerator temperature.
1 2
Press the TEMPERATURE button.
Using the or button, select
the desired refrigerator.
3
Select the temperature using the or button.
Refrigerator temperature options: 46, 41, 37, 34, or 32˚F
Freezer temperature options: 7, 1, -2, -5, or -8˚F
4
Press the SELECT button.
5
Return to the standby screen.
Refrigerator/Freezer
12
Press the TEMPERATURE button.
Press the or button
to select IcePlus.
- For quick freezing.
- The standby screen is shown during IcePlus operation.
3
Press the or button to select Use.
[ Use ] <--> [ Not in Use ]
4
Press the SELECT button.
5 6
Return to the standby screen.
IcePlus
- The indicated set temperature is not the actual temperature within the
refrigerator but the target temperature. The actual internal temperature can
differ, especially if the door is opened and warm food was recently stored.
- Initially the refrigeration is weak. Adjust the temperature as mentioned
above after using the refrigerator for at least 2 to 3 days.

- You can select from Crush, Water or Cube options.
- When the dispenser is in use, the active option is indicated in the standby screen.
- Crush , Water , Cube .
15
Operation
Dispenser
Crush/Water/Cube
12
Press the DISPENSER button.
Select the desired option using
the and buttons.
[ Crush ] <--> [ Water ] <--> [ Cube ]
4
3
Press the SELECT button.
5
Return to the standby screen.
The automatic icemaker can automatically make 6 cubes at a time, 70~120 pieces
per day. This quantity may vary by circumstance, including ambient temperature,
door opening, freezer load. etc.
Icemaking stops when the ice storage bin is full.
If you don't want to use the automatic icemaker, turn the icemaker switch to OFF.
If you want to use automatic icemaker again, change the switch to ON.
The water amount will vary depending on the water amount selection button.
Setting, as well as the water pressure of the connected water line.
Automatic
icemaker
•
It is normal that a noise is produced when ice drops into the ice storage bin.
NOTE
Water Amount
Indicator Light
Power
Switch
Water Amount
Selection Button
Feeler Arm

16
Operation
Menu
You can select from Information, Gourmet Recipes, Refrigerator, Settings, and
Photo Album function.
1
Press the MENU button.
2
4
Press the SELECT button.
5
You will see the detail menu.
3
Select the menu using the and buttons.

17
Operation
Press the or button to
select On.
Press the or button
to select On/Off.
Select the desired region
using the or button.
Press the or button to
select Weather Forecast.
You can select from Weather Forecast, Anniversary Reminder,
Date and Time Setting, or Timer function.
Information
- Receives and displays the weather and temperature for 5 days, including the
current day.
- Reception of weather forecast information received and displayed on the screen
is subject to vary depending on your region and location of refrigerator.
- Thereby LG does not guarantee and will not be held responsible for accuracy of
the weather information.
- Weather forecast information is only available in U.S.A
❐ Weather Forecast
1 2
3 4
56
7
Return to the Information menu.

18
Operation
Select the menu using
the or button.
Select the advance time
using the or button.
Select the month using the or button.
Press the button and then select the date using the or button.
Press the or button to
select Anniversary Reminder.
- Register the anniversary date.
- Select the Anniversary reminder using the button.
❐ Anniversary Reminder
< To set a new date >
1 2
3
4
6
Return to the Information menu.
Press the button
to select Save.
5
The anniversary reminder alarm goes off
The alarm will go off at the set date
and time, and the anniversary will be
displayed in the screen.

19
Operation
You can check the detail menu using
the or button.
Press the or button
to select List.
Press the or button to
select Anniversary Reminder.
< To view the anniversary list >
1
2
3 4
Press the button to select Save.
Select the menu using
the or button.
Select the value using
the or button.
Press the or button to select
Data & Time Setting.
To set the date and time.
❐ Data & Time Setting
1 2
3 4
5
Return to the Information menu.

20
Operation
To set the alarm.
❐ Timer
Press the button
to select Save.
Select the time using
the or button.
Press the or button
to select Timer.
1 2
3 4
5
Return to the Information menu.
- The alarm will go off at the set time, and
the timer image will be displayed in the
screen.

21
Operation
Select the recipe after selecting the menu category of dish.
Gourmet Recipes
1
2
Select the menu category using the or button.
Press the button
to select More.
You can select the dish
using the or button.
3 4
Press the button
to select List.
You can select the detail menu
using the or button.
56
7
Return to the Gourmet Recipes menu.

Operation
22
You can select from Filter reset, Door alarm, Dispenser light, Manual, and Service Call
functions.
< When the filter exchange date is still not due. >
Reminds you when to replace the filter.
1
Refrigerator
2
❐ Filter Reset
Press the or button
to select Filter Reset.
4
Press the SELECT button.
3
Press the or button to
select Reset.
5
Return to Refrigerator menu.

23
Operation
1 2
Press the or button
to select Filter Reset.
4
Press the SELECT button.
3
Press the or button
to select Reset.
5
Return to Refrigerator menu.
< When the filter exchange date is overdue. >
- You will see a message notifying you how long it will be before you need
to change the filter.
Return to the
standby screen.
- If you choose to cancel filter exchange setting.
Press the or button
to select Later.
You will see the filter exchange
sign in the standby screen.
Press
the SELECT button.
Press the or
button to select Reset.
Press
the SELECT button.

24
Operation
This is the function of notifying you every 30 seconds that the refrigerator door is
open for more than 1 minute.
- You can turn the door alarm on or off.
❐ Door Alarm
1 2
Press the or button to
select Door Alarm.
4
Press the button to select Save.
3
Press the or button
to select Use or Not in Use.
5
Return to the Refrigerator menu.
- You will see the door alarm message.
- When using the Door Alarm
This notifies you every 30 seconds that the
refrigerator door is open for more than 1 minute.
- When not using the Door Alarm
The alarm will not go off even when the refrigerator
door is open.

25
Operation
This function controls the LED lamp located on the dispenser.
- Press this icon turn the dispenser light on or off.
❐ Dispenser Light
- When On is selected, the dispenser light is always on.
- When Off is selected, the dispenser light is turned on only when the
dispenser lever is pressed.
1 2
Press the or button to
select Dispenser Light.
4
Press the button to select Save.
3
Press the or button
to select On.
[ On ] <--> [ Off ]
5
Return to the Refrigerator menu.

26
Operation
You can select from Key Guide, Tem. Adjustment, Child Lock, Weather Forecast,
Proper Food Storage, Fridge Maintenance Guide, Freezer Maintenance Guide or
Elimination of Odor function.
❐ Owner’s Manual
1 2
Press the or button
to select Owner’s Manual .
7
Return to Refrigerator menu.
3
4
Press the SELECT button.
6
Press the button to select List.
5
Select the detail menu using
the or button.
Select the menu using the or button.

27
Operation
1. Key Guide
Press the or
button to select
Key Guide.
You will see the detail
menu.
2. Tem. Adjustment
Press the or
button to select
Tem. Adjustment.
You can check the
detail menu using the
or button.
3. Child Lock
Press the or
button to select
Child Lock.
You can check the
detail menu using the
or button.
4. Weather Forecast
Press the or
button to select
Weather Forecast.
You can check the
detail menu using the
or button.
5. Proper Food Storage
Press the or
button to select
Proper Food Storage.
You can check the
detail menu using the
or button.
6. Fridge Maintenance Guide
Press the or
button to select
Fridge Maintenance
Guide.
You can check the
detail menu using the
or button.
7. Freezer Maintenance Guide
Press the or
button to select
Freezer Maintenance
Guide.
You can check the
detail menu using the
or button.
8. Elimination of Oder
Press the or
button to select
Elimination of Odor.
You can check the
detail menu using the
or button.

28
Operation
You can select from Display Image, Display Theme, Power Saver,
Screen Backlight/Button Sound, or ˚C/˚F Setting function.
Settings
1 2
Select the menu using
the or button.
3
Select and Save the menu you
want using the or button.
4
Return to the Settings
list menu.
This shows the number to call for service in the US or Canada.
❐ Service Call Info.
1 2
Press the or button
to select Service Call Info.
3
You will see the detail menu.