LG LSC27914SB Instruction Manual

MODELOS:
LSC27914ST /01
LSC27914SW /01
LSC27914SB /01
LSC27914TT /01
ATENCION:
ANTES DE INICIAR EL SERVICIO LEA CUIDADOSAMENTE LAS
ADVERTENCIAS DE SEGURIDAD EN ESTE MANUAL.
REFRIGERADOR
MANUAL DE SERVICIO
9

ECN (Engineering Change Number)
Rev.01 (LSC27914 /01)
Suction Pipe diameter

CONTENTSCONTENTS
SAFETY PRECAUTIONS ........................................................................................................
1. SPECIFICATIONS ...............................................................................................................
2. PARTS IDENTIFICATION ....................................................................................................
3. DISASSEMBLY ...................................................................................................................
1. Door Alignment..................................................................................................................
2. Install Water Filter..............................................................................................................
3. Refrigerator Shelves..........................................................................................................
4. Freezer Shelf.....................................................................................................................
5. How to Control the amount of water supplied to ice maker................................................
4. HOW TO DISASSEMBLY AND ASSEMBLY.......................................................................
1. Removing and Replacing Refrigerator door.......................................................................
2. Handle Removal................................................................................................................
3. How to Remove Swtich Lamp............................................................................................
4. Fan Shroud Grille...............................................................................................................
5. Ice maker Assembly...........................................................................................................
6. Water Valve Disassembly Method.....................................................................................
7. Water Valve Tubes Assembly Method................................................................................
8. Disassemble of fan Motor..................................................................................................
9. Disassemble of Tray Drip...................................................................................................
10. Dispenser...........................................................................................................................
5. MICOM FUNCTION .............................................................................................................
1. Monitor Panel.....................................................................................................................
6. EXPLANATION FOR MICOM CIRCUIT ..............................................................................
1. Explanation for PCB circuit...............................................................................................
7. ICEMAKER AND DISPENSER WORKING PRINCIPLES AND REPAIR............................
1. Working Principles............................................................................................................
2. Function on Icemaker........................................................................................................
3. Ice maker Troubleshooting................................................................................................
4. Icemaker Circuit................................................................................................................
8. CIRCUIT DIAGRAM.............................................................................................................
9. TROUBLE DIAGNOSIS.......................................................................................................
10. EXPLODED VIEW ..................................... ........................................................................
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4
5
6
6
7
8
8
9
11
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132
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- 3 -
SAFETY PRECAUTIONS
Please read the following instructions before
servicing your refrigerator.
1.Check the refrigerator for current leakage.
2.To prevent electric shock,unplug before
servicing.
3.Always check line voltage and amperage.
4.Use standard electrical components.
5.Don't touch metal products in the freezer
with wet hands.This may cause frost bite.
6.Prevent water from spiling on to electric
elements or the machine parts.
7.Before tilting the refrigerator, remove all
materials from on or in the refrigerator.
8.When servicing the evaporator, wear gloves
to prevent injuries from the sharp evaporator
fins.
9.Service on the refrigerator should be
performed by a qualified technician.Sealed
system repair must be performed by a CFC
certified technician.

1. SPECIFICATIONS
- 4 -
LSC27914SB /01
LSC27914SW /01
LSC27914TT /01
LSC27914ST /01
Black Super White Titanium Stainless
PCM PCM VCM Stainless
MOLECULAR SIEVE XH-7
ID Ø0.80
4 Hours
13 - 70 Hours
Heater, Sheath
Water Tank Heater
FREEZER
Anti-freezing Heater
Drier
MICOM control
Full Automatic
Heater Defrost
Cyclo, Pentane
Basket
LQ69LAUH PTC Starting Type
Wire Condenser
Egg Bank
Ice Maker
Lamp
Shelf
Twisting
Yes (1) 40W/Blue
3EA (Wire)
Basket 4 plastic
REFRIGERATOR
Embo (normal)
36 x 33 x 70 in
328.5 lbs
27 cuft
R134a
Temperate (N)
115V~ / 60Hz
Fan Cooling
GENERAL FEATURES
Defrost Cycle
Desfrosting Device
Evaporator
Capillary Tube
Fin Tube Type
Defrosting System
First Defrost
Condenser
Lubricanting Oil Polyol Ester (POE) 310 ± 10 cc
Insulation
Compressor
Temperature Control
Cooling System
Rated Rating
Climate class
MODELS
SPECIFICATIONS
Capacity
Refrigerant
Net Weight
Dimensions
Color
Lamp
Shelf
Tray meat
Case Material
Door Material
Handle Type
Display Graphic
Yes (2) 40W/Blue
1 (Fix) + 2 (S/Out)
Yes
No
Vista (plastic)
ICE PLUS
3full+1half

2. PARTS IDENTIFICATION
- 5 -
A
B
C
D
A
A
E
F
M
G
H
I
J
L
K
H
L
Use this page to become more familiar with the parts and features.
Note: This guide covers several different models.The refrigerator you have purchased may have some or
all of the items listed below. The locations of the features shown below may not match your model.
Refrigerator Door Rack
J
L
K
Refrigerator Shelf
Vegetable Drawer
I
Snack Pan
For storage of meat or fresh food.
Water Filter
HRefrigerator Lamp
M
Dairy Corner
Drawer
B
C
D
A
E
F
G
Freezer Door Rack
For storage of dairy products
such as butter and cheese.
Freezer Lamp
Base Grille
Freezer Shelf
Automatic Icemaker
The ice is produced in the icemaker
and sent to the dispenser.

3. HOW TO INSTALL THE REFRIGERATOR
- 6 -
1.
Before adjusting the doors, remove the Base Grille.
If the freezer compartment door is lower than
the refrigerator compartment door, make them
level by inserting flat blade screwdriver into the
groove of the left leveling leg and rotating it
clockwise.
DOOR ALIGNMENT
Left leveling
leg Height
If the freezer compartment door is higher than the
refrigerator compartment door, make them level by
inserting flat blade screwdriver into the groove of
the right leveling leg and rotating it clockwise.
Right leveling leg
Height
difference
Adjust the level when the refrigerator door is lower than
the freezer door during the installation of the refrigerator.
Tools you need
• Wrench 5/16 in (8 mm)
• Wrench 3/4 in (19 mm)
AFTER LEVELING THE DOOR HEIGHT
Make sure the front leveling legs are completely
touching the floor.
difference
Height
difference
Height
difference
Height
difference
Height
difference
Using a ¾” (19 mm) wrench, turn the keeper nut clockwise
to lossen the keeper nut.
Keeper nut
Adjustment
hinge pin
Wrench
Up
Down
Using a 5/16” (8 mm) wrench, turn the adjustment hinge pin
c refrigeratorclockwise or ounter clockwise to level the and
After setting the level door, turn the keeper nut
counter clockwise to tighten.
Do not over tight the door adjustment screw. The
hinge pin can be pulled out. (Adjustable range of height is a
maximum of ½” (1.27 cm)).
freezer door.

2. INSTALL WATER FILTER
Removing the water filter:
1. For first-time installation, remove filter substitute cap
(A) by turning it counterclockwise a quarter turn and
pulling it down. The substitute cap must be retained
for the future. If the filter is removed and not
replaced, it is necessary to reinstall the substitute
cap to prevent water leaks from the filter housing.
Installing the water filter
Remove red cap from the filter and insert the two
tabs on the filter tip into the two slots in the
refrigerator filter receptacle. You should feel the filter
entering completely. Turn the filter to the right a quarter
turn clockwise to lock it into place. The locked symbol
will be lined up with the indicator arrow.
A
After installing water filter
1. Replace the shelf to the initial position.
2. Turn on household water supply.
3. Dispense 2.5 gallons (9.46 L) of water to purge the
system, depressing and releasing the dispenser button
(30 seconds ON, 60 seconds OFF). Open the
refrigerator door and check the shelf area for leaks.
- 7 -
Before removing or installing water filter:
1. Take out the top shelf and move it to the lowest level.
2. IMPORTANT: Turn off household water supply.
• Filter Reset: When the Filter icon turns on, you
have to change the water filter. Press the Filter
button for 3 seconds to turn the icon .
2. For subsequent installation, remove old filter by
slowly turning it to the left a quarter turn and pulling it
down.
Filter

Car e andMai ntenance
3. REFRIGERATOR SHELVES
you can place it at a height according to space
requirement of foods.
The refrigerator compartment shelf is adjustable so that
• Fixed shelf
Lightly lift up the front part of shelf pull it towards you ,
then take it out while lifting the rear part of shelf .
• Slide shelf
Pull the shelf head towards you , then lift both front
and rear while taking ir out .
NOTE: Make sure to keep shelf horizontal while
removing; otherwise it may drop.
4. FREEZER SHELF
1
3
2
1
2
3
- 8 -
, push the right part to the direction k, and take it out.
• Lift the left part of the shelf a bit. Lift it to the direction

5. HOW TO CONTROL THE AMOUNT OF
WATER SUPPLIED TO ICE MAKER
2) Turn on the electricity after connecting water pipe.
1) Press the test switch under the icemaker for two seconds as
shown below.
2) The bell rings (ding ~ dong), the ice tray rotates, and water
comes out the icemaker water tube.
3) The water is supplied into the tray two or three times. The
amount is small each time. Put a container under the ice tray
and press test switch.
4) When the ice tray rotates, the water in it will spill. Collect the
spilled water and discard it.
5) When ice tray has finished rotation, water comes out the
water tube. Check the amount that goes into the ice tray.
(Refer to the drawing below. The optimum amount is 110cc.
(Almost 4 oz.)).
* It is acceptable is the adjusted water level is less than the
optimum level.
• To assemble the ice storage bin, push it int while
slightly lifting it .
NOTE: Use both hands to remove the ice bin to avoid
dropping it. If the ice bin does not slide into place easily,
twist the drive device slightly.
•Hold the ice storage bin as shown in the right figure 
and pull it out while slightly lifting it .
1. DISASSEMBLY ICE STORAGE BIN
1
2
2. DISASSEMBLY ICEMAKER
If you need acces to the Icemaker, follow these steps:
• Lift the ice shelf as shown in the right figure and 
pull it out .
COVER
Feeler Arm
Power Switch
ON/OFF
(On the lower
part of icemaker)
switch
Test
- 9 -
Make sure it is fully engaged into the auger drive .
1
2

3-2 Control the amount of water supplied to the icemaker.
Caution: • Unplug the power cord from the wall outlet and wait at least three minutes before removing the main PWB cover.
310 Volts are present in the control panel.
Water Supplying Time Control Option
1) The water supplying time is set at 9s when the refrigerator is delivered.
2) The amount of water supplied depends on the setting time and water pressure (city water pressure).
3) If the ice cubes are too small, increase the water supplying time. This happens when too little water is supplied into the ice tray.
4) If the ice cubes stick together, decrease the water supplying time. This happens when too much water is supplied into the ice
tray.
Caution: When adjusting the amount of water supplied, adjust step by step. Otherwise the water may spill over.
3. When the adjustment of the control switch for the amount of water supplied is complete, check the level of water in the ice.
Switch ON
Switch OFF 1
ON
2
- 10 -
S1 S2
1 OFF OFF 9.0
2 ON OFF 8.0
3 OFF ON 10.0
4ON ON 11.0
DIP S/W Setting will be depend of
water pressure
DISP S/W
No Water Supply Time Note

4. HOW TO DISASSEMBLY AND ASSEMBLE
1. REMOVING AND REPLACING
REFRIGERATOR DOORS
Before removing the doors, remove the base grille.
To remove the right (refrigerator) door:
CAUTION: When lifting the hinge free of the latch,
be careful that the door does not fall forward.
(1)
(2)
(3)(4)
(5)
1. Open the door. Remove the top hinge cover screw
3.Rotate the hinge lever (3) clockwise. Lift the top hinge
2. Use a flat blade screwdriver to pry back the hooks
(not shown) on the cabinet underside of the cover (2).
Lift up the cover.
4. Lift the door from the lower hinge pin.
5. Place the door, inside facing up, on a nonscratching
surface.
(1).
Type 2
Type 1
(4) free of the hinge lever latch (5).
(3)
(4) (5)
Rivet
NOTE: Regardless of hinge lever type, removal process
is the same.
Removing the left (freezer) door with water line
connection.
•
(Figure 1) as shown in the figure below.
If a tube end is deformed or abraded, trim the
part away. Disconnecting the tube under the door
causes about 0.13 gallons (0.5 liters) water to flow out.
Put a large container at end of tube to prevent water from
draining onto the floor.
Pull up the water feed tube while pressing area
• NOTE:
Figure 1
1. Open the door. Remove the top hinge cover screw (1).
2. Use a flat blade screwdriver to pry back the hooks
(not shown) on the cabinet underside of the cover (2).
Lift up the cover.
3. Disconnect all the wire harnesses (3).
4. Remove the grounding screw (4).
5.Rotate hinge lever (5) counterclockwise. Lift the top
CAUTION: When lifting the hinge free of the latch,
be careful that the door does not fall forward.
7. Place the door, inside facing up, on a nonscratching
surface.
6. being careful toLift the door from the lower hinge pin
pull the water lines through the lower hinge pin.
hinge (6) free of the hinge lever latch (7).
(1)
(2)
(3)
(5)
(6)
(7)
(4)
Type 2
Type 1
(6)
(5)
Rivet
NOTE: Regardless of hinge lever type, removal
process is the same.
(7)
- 11 -

Reinstalling the right (Refrigerator) door
(1)
(2)
(3) (4)
(5)
Type 2
Type 1
(3)
(4) (5)
Rivet
2. Fit top hinge (4) over hinge lever latch (5) into
place. Rotate lever (3) counterclockwise to secure
3. Hook tab on switch side of corner under edge of wire
opening in cabinet top. Position cover (2) into place.
Insert and tighten cover screw (1).
hinge.
1. Place the door onto the lower hinge pin.
NOTE: Regardless of hinge lever type. removal
process is the same.
Reinstalling the left (Freezer) door
(1)
(2)
(3)
(5)
(6)
(7)
(4)
Type 2
Type 1
(5)
(6)
(7)
Rivet
2. Fit top hinge (6) over hinge lever latch (7) and into
place. Rotate lever (5) clockwise to secure hinge
3. Install the grounding screw (4) and connect all the
wire harnesses (3).
4. Hook tab on door switch side of cover (2) under edge
of wire opening in cabinet top. Position cover into
place. Insert and tighten cover screw (1).
1. Feed the water tubes through the lower hinge pin and
place the door onto the lower hinge pin.
5. Reconnect the water tubes by inserting the tubes into
the connectors.
NOTE: Regardless of hinge lever type, removal
process is the same.
2. HANDLE REMOVAL
- 12 -
•
• The
•
Grasp the handle tigthtly with both hands and slide the
handle up (1) (this may require some force).
keyhole slots (2) on the back of the handle allow
the handle to separate from the mounting screws (3).
Then pull the handle towards you.
CAUTION: When trying to remove or install the handle
if hit wit a hammer, it could be damaged or broken.
CAUTION: When you assemble or dissasemble
handle, you must push and pull with moment force.
Keyhole slots
on back of
handle
Screws
mounted
on door
NOTE: It is ALWAYS recommended to remove the
refrigerator doors when it is necessary to move the
refrigerator through a narrow opening. If necessary,
follow the directions below to remove the door handles.

3. HOW TO REMOVE SWITCH LAMP
1. Open the door. Remove the top hinge cover screw (1).
2. Use a flat blade screwdriver to pry back the hooks (not
shown) on the cabinet underside of the cover (2). Lift up the
cover.
3. (3).
Disconnect the wire harnesses
(1)
(2)
(3)
(4)
(1)
(2)
4. To remove the switch (4) press and hold the hooks and
push it out.
(4)
- 13 -

4. FAN SHROUD GRILLE 5. ICEMAKER ASSEMBLY
1. Loosen one screw with a screwdriver blade.
2. Disassembly of an upper grille fan: Hold upper part of an
upper grille fan (U) and pull forward carefully.
3. Disassembly of a lower grille fan: Hold upper part of a
lower grille fan and pull forward carefully.
4. Disassembly of an upper freezer shroud: Hold lower part,
pull forward and disconnect housing A and B.
5. Check for foam sticking conditions around a shroud,
upper freezer and lower freezer during assembling. If
damaged torn, or badly stuck, assemble with a new one afer
sealing well.
1. Dispenser Model
1) How to disassemble:
(1) Remove ice bin from the freezer compartment.
(2) Loosen the screw on the upper part of icemaker bracket.
(3) Disconnect icemaker bracket so that it can slide forward.
(4) Disconnect icemaker housing and sensor housing.
(5) Disconnect icemaker horizontally by pressing bracket hook
part. (Don’t disassemble further. The set value may be
changed).
2) The assembly is the reverse order of the above disassembly.
Hook
- 14 -
Icemaker Bracket
Icemaker unit
Ice Tray
Insulation
Sensor
Sensor Cover
Lever
Bracket
screw
Shroud F(U)
Housing B
Housing A
Grille Fan
(U)
Motor
Fan
Socket
Lamp
Cover Lamp
Evaporator

6. WATER VALVE DISASSEMBLY METHOD
- 15 -
1. Turn off the water supply. Then separate the Water
connection connected to the water valve.
2. Separate the cover back M/C y valve screw.
3. Separate the housing and pull out the valve.
Valve Screw
Water Valve
Cover Back M/C
Housing

7. WATER VALVE TUBES ASSEMBLY METHOD
- 16 -
1) Connect the Water Filter tube (IN) to the water valve.
2) Connect the Water Filter tube (OUT) to the water valve.
3) Connect the Ice maker tube (IN) to the water valve.
4) Connect the Water Tank tube (IN) to the water valve.
The pipe has a Red mark on the end that connects to the water valve, make sure it is the correct tube.
NOTA: For a successful connection, insert the tubes to the water valve until you can see only a line.
1
2
3
4
4
1
3
4
2
Water Filter (IN) 5/16”
Water Filter (OUT 1/4”
Ice maker (IN) 1/4”
Water Tank (IN) 5/16”
Red mark in tube
2
1
3
4
Side View of Water Valve
Tubes
Water valve

8. FAN MOTOR DISASSEMBLY
1. Remove screws from water valve and drain pipe using a
phillips screwdriver.
2. Pull down drain pipe to remove it.
3. Using a small phillips screwdriver remove screws from
bracket motor.
4. Remove fan motor by pushing fan motor in direction of the
arrow.
5. Remove the motor from housing and cut tie wrap.
6. Unplug fan motor.
- 17 -
7.- To reinstall repeat the same process but inverted (6 to 1)

9. TRAY DRIP DISASSEMBLY
1. Remove guide fan and drain pipe screws using a phillips
screwdriver.
2. Remove fan motor by pushing fan motor in direction of
arrow.
3. Remove screws from wire condenser bracket. Use phillips
screwdriver.
4. Remove screws in compressor base in order to release
tray drip.
5. Use a tool to release clips (2) in order to disassemble
guide fan (move to right).
6. Turn condenser clockwise carefully in order to remove it
from tray drip. Then remove tray drip carefully. Avoid any
damage to condenser or pipes.
- 18 -
Move
Move

10. DISPENSER
Funnel Assembly
Funnel
Duct Cap
Assembly
Holder
Lever
Motor Assembly
Botón
Motor Assembly
1) Disconnect funnel and button assembly by pulling down
and forward.
2) Remove the display frame pulling out with both hands on
one side and repeat the process in the other side while pulling
it forward like shows the picture.
3) The display assembly can be disconnected by pressing the
top of the dispenser cover and pushing it after separating the
display frame from its housing.
4) Loosen four screws with a phillips screwdriver and pull the
funnel assembly to disconnect.
The duct cap assembly can be disconnected if the hold lever
connecting screws is loosened with a phillips driver.
6) To install the duct cap assembly, insert one end of the spring
into the right hole of the dispenser lever and insert the other
end into the right hole in the top part of the dispenser. Then
attach the holder at the solenoid switch.
- 19 -