LG LSFXC2476 SERIES User manual

CAUTION
BEFORE SERVICING THE UNIT,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
Any reproduction, duplication, distribution (including by way of email, facsimile or other electronic means), publication,
modification, copying or transmission of this Service Manual is STRICTLY PROHIBITED unless you have obtained the
prior written consent of the LG Electronics entity from which you received this Service Manual. The material covered by
this prohibition includes, without limitation, any text, graphics or logos in this Service Manual.
Copyright © 2016 - 2017 LG Electronics Inc. All rights reserved. Only training and service purposes.
MODEL : LSFXC2476* COLOR : STAINLESS(S)
DIA BLACK (D)
CONFIDENTIAL
REFRIGERATOR
SERVICE MANUAL

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CONTENTS
SAFETY PRECAUTIONS ................................................................................................................................... 2
1. SPECIFICATIONS ......................................................................................................................................... 3
2. PARTS IDENTIFICATION ............................................................................................................................. 4
3. DISASSEMBLY ........................................................................................................................................ 5-23
REMOVING AND REPLACING REFRIGERATOR DOORS .......................................................................... 5
DOOR.............................................................................................................................................................. 6
SUB PCB.......................................................................................................................................................... 7
DOOR ALIGNMENT ....................................................................................................................................... 8
FAN AND FAN MOTOR .................................................................................................................................. 8
DEFROST CONTROL ASSEMBLY ............................................................................................................... 8
REFRIGERATOR LIGHT (TOP) ............................................................................................................... 9-10
MULTI DUCT ................................................................................................................................................ 10
DISPENSER ................................................................................................................................................. 11
DISPLAY PCB .............................................................................................................................................. 11
ICE BUTTON ASSEMBLY ........................................................................................................................... 11
WATER BUTTON ASSMEBLY .................................................................................................................... 11
ICE CORNER DOOR REPLACEMENT ....................................................................................................... 11
ICEMAKER REPLACEMENT ....................................................................................................................... 12
CAP DUCT MOTOR REPLACEMENT ......................................................................................................... 12
HOW TO REMOVE A ICE BIN ..................................................................................................................... 13
HOW TO INSERT A ICE BIN ....................................................................................................................... 13
HOW TO REMOVE AND REINSTALL THE PULLOUT DRAWER ......................................................... 14-15
WATER VALVE DISASSEMBLY METHOD ................................................................................................. 16
FAN AND FAN MOTOR DISASSEMBLY METHOD ..................................................................................... 16
PULL OUT DRAWER ................................................................................................................................... 17
CAUTION : SEALED SYSTEM REPAIR ...................................................................................................... 18
WAY VALVE SERVICE.................................................................................................................................. 18
HOW TO REMOVE AND REINSTALL THE HOMEBAR ..........................................................................19-20
HOW TO REMOVE AND REINSTALL THE HOMEBAR DOOR.................................................................... 20
HOW TO REMOVE AND REINSTALL THE DOOR FOAM ASSEMBLY, REFRIGERATOR ........................ 21
HOW TO REMOVE FRAME DOOR SWITCH OF DOOR FOAM .................................................................. 22
HOW TO REMOVE THE HOMEBAR DOOR................................................................................................. 23
4. ADJUSTMENT ............................................................................................................................................. 24
COMPRESSOR ............................................................................................................................................ 24
5. CIRCUIT DIAGRAM ..................................................................................................................................... 25
6. PCB PICTURE ........................................................................................................................................ 26-27
7. TROUBLESHOOTING ............................................................................................................................ 28-74
8. REFERENCE .......................................................................................................................................... 75-77
9. COMPONENT TESTING INFORMATION ............................................................................................... 78-90
10. COMPRESSOR TROUBLESHOOTING .............................................................................................. 95-105
11. ICEMAKER OPEARTING METHOD AND TROUBLE SHOOTING .................................................. 106-107
12. DESCRIPTION OF FUNCTION & CIRCUIT OF MICOM ................................................................... 108-111
13. EXPLODED VIEW & REPLACEMENT PARTS LIST................................................................................. 112
SAFETY PRECAUTIONS
Please read the following instructions before servicing your refrigerator.
1. Unplug the power before handling any elctrical componets.
2. Check the rated current, voltage, and capacity.
3. Take caution not to get water near any electrical components.
4. Use exact replacement parts.
5. Remove any objects from the top prior to tilting the product.
Copyright © 2016 - 2017 LG Electronics Inc. All rights
reserved. Only training and service purposes.

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1. SPECIFICATIONS
1-1 LSFXC2476*
DOOR DESIGN
DIMENSIONS (inches)
NET WEIGHT (pounds)
COOLING SYSTEM
TEMPERATURE CONTROL
DEFROSTING SYSTEM
DOOR FINISH
HANDLE TYPE
INNER CASE
INSULATION
ITEMS
Flat type
35 3/4X 30 7/8X 70 1/4(WXDXH) 23.5cu.ft
149kg (328lb)
Fan Cooling
Micom Control
Full Automatic
Heater Defrost
Stainless
Bar
ABS Resin
Polyurethane Foam
SPECIFICATIONS
●23.5 cu.ft.
VEGETABLE TRAY
COMPRESSOR
EVAPORATOR
CONDENSER
REFRIGERANT
LUBRICATING OIL
DEFROSTING DEVICE
ITEMS
Clear Drawer Type
Linear
Fin Tube Type
Spiral Condenser
R-134a (135 g)
ISO10 (280 ml)
SHEATH HEATER
LED Module
LED Module
SPECIFICATIONS
LAMP REFRIGERATOR
FREEZER
● DIMENSIONS
Depth w/ Handles
Depth w/o Handles
Depth w/o Door
Depth (Total with Door Open)
Height to Top of Case
Height to Top of Door Hinge
Width
Width (door open 90 deg. w/o handle)
Width (door open 90 deg. w/ handle)
A
B
C
D
E
F
G
H
I
30 7/8 in
28 3/8 in
24 1/8 in
42 3/4 in
68 7/8 in
70 1/4 in
35 3/4 in
40 in
45 in
Description LSFXC2476*

- 4 -
2. PARTS IDENTIFICATION
Ice Bin
Icemaker
Ice Compartment Door

- 5 -
3. DISASSEMBLY
3-1 REMOVING AND REPLACING REFRIGERATOR DOORS
●Removing Refrigerator Door
CAUTION: Before you begin, unplug the refrigerator. Remove food and bins from doors.
▶Left Door -FIG. 2
1. Disconnect water supply tube by pushing back on the disconnect ring (3).-FIG. 1
2. Open door. Loosen top hinge cover screw (1).
Use flat tip screwdriver to pry back hooks on front underside of cover (2). Lift up cover.
3. Disconnect door switch wire harness and remove the cover.
4. Pull out the tube.
5. Disconnect all 3 wiring harnesses (4). Remove the grounding screw (5).
6. Rotate hinge lever (6) counterclockwise. Lift top hinge (7) free of hinge lever latch (8).
7. Lift door from middle hinge pin and remove door.
8. Place the door with the insides facing up, on a not scratch surface.
CAUTION: When lifting hinge free from the latch, be careful that door does not fall forward.
▶Right Door -FIG. 3
1. Open the door, remove 1 screw on the top of the hinge cover. Loosen top hinge cover screw (1). Lift up cover (2).
2. Disconnect door switch wire harness and remove the cover.
3. Rotate hinge lever (3) clockwise. Lift top hinge (4) free of hinge lever latch (5).
4. Lift door from middle hinge pin and remove door.
5. Place the door with the insides facing up, on a not scratch surface.
CAUTION: When lifting hinge free from the latch, be careful that the door does not fall forward.
Figure 2 Figure 3
Figure 1
1) Insert the tube until you can see only one of
the lines printed on the tube.
2) After inserting, pull the tube to ascertain that
it is secure.
3) Assemble clip.

- 6 -
1. Remove gasket
Remove the gasket from gasket channel at doorliner as
shown in the illustration below.
3-2 DOOR
●Mullion Removal
1. Remove 2 screws.
●Door Gasket Removal
2. Lift mullion up carefully.
3. Disconnect wire harness.
●Door Gasket Replacement
1. Insert gasket into channel
Insert and press gasket into channels at doorliner.
2. Insert mullion into channel.
Insert the mullion into channel at door as shown below.
●Mullion Replacement
1. Connect wire harness.
3. Assemble 2 screws.
Gasket
Gasket
Channel

- 7 -

- 8 -
* Ice Fan Assembly Replacement
1) Remove the plastic guide for slides on left side by
unscrewing phillips head screws.
2) Pull out the cover sensor to disassemble by using tools
shown in the figure.
3) Pull out the cover grille to disassemble by using tools
shown in the figure.
4) Put your hand into the inside of grille to disassemble
shown in the figure.
5) Disconnect wire harness of the grille assembly.
6) Remove the Ice fan assembly by loosening all screws.
(1) (2)
(3) (4)
(5) (6)
3-6 DEFROST CONTROL ASSEMBLY
Defrost Control assembly consists of Defrost Sensor and
FUSE-M.
The Defrost Sensor works to defrost automatically. It is
attached to the metal side of the Evaporator and senses its
temperature. At 46F(8°C), it turns the Defrost Heater off.
Fuse-M is a safety device for preventing over-heating of
the Heater when defrosting.
1. Pull out the grille assembly. (Figure 1)
2. Separate the connector with the Defrost Control
assembly and replace the Defrost Control assembly after
cutting the Tie Wrap. (Figure 2)
GRILLE ASSEMBLY DEFROST-CONTROL
ASSEMBLY
3-4 Door Alignment
If the level of refrigerator doors is uneven, follow the
instructions below to align the doors:
Turn the leveling legs (CCW) to raise or (CW) to lower the
height of the front of the refrigerator by using flat blade
screw driver or 11/32" wrench. Use the wrench (Included
with the User Manual) to adjust the bolt in the door hinge to
adjust the height. (CW to raise or CCW to lower the height.)
3-5 FAN AND FAN MOTOR
1. Remove the freezer drawer.
2. Remove the plastic guide for slides on left side by
unscrewing phillips head screws.
3. Remove the grille assembly by removing four screws
and pulling the grille assembly forward.
4. Remove the Fan Motor assembly by loosening 3 screws
and disassembling the shroud.
5. Pull out the fan and separate the Fan Motor and Bracket
Motor.
FAN MOTOR
BRACKET
MOTOR
Shroud
Up
Down
Ice Fan Assembly

- 9 -
3-7 Refrigerator Light (Top)
Unplug Refrigerator, or disconnect power at the circuit
breaker.
If necessary, remove top shelf or shelves.
1) Release 2 screws.
2) Hold both ends with your both hands and pull it
downward to remove it.
3-7-1 Refrigerator Compartment Lamp
4) Use a flat blade screwdriver as shown below to remove
the cover lamp.
5) To remove the LED Assembly, open the Hook part to pull
it out as shown in the following picture.
Cover, lamp
Case, lamp
LED, Assembly
3) To remove the case lamp and cover lamp, release
another 2 screws as following picture.
3-7-2 Refrigerator Light (Side)
1. Unplug refrigerator power cord from electric outlet.
2. Put flat screwdriver into sevice hole and remove cover of
refrigerator light.
3. Remove the LED assembly from connector.
4. Replace LED assembly.
5. Assemble the cover in reverse order.

- 10 -
3-8 MULTI DUCT
3-7-3 Cap Duct LED LAMP(Bottom)
1. Unplug refrigerator power cord from electric outlet.
2. Open the refrigerator door to need diassembly.
3. Put flat screwdriver into service hole, remove the cover
of cap duct LED LAMP.
5. Replace LED assembly.
6. Assembly the cover in reverse order.
4. Remove the LED assembly from connector.
1. Remove 2 screws and guide rail.
2. Remove the upper and lower Caps by using a flat
screwdriver and remove 2 screws as shown figure.
3. Disconnect the lead wire on the bottom position
4. Grip both side of multi duct, pull it out.

- 11 -
3-12 ICE CORNER DOOR REPLACEMENT
1) Loosen the front screw as shown in the picture.
2) Lift up the hinge with one hand.
3) Pull out the Ice Corner Door with the other hand.
hinge
3-10 DISPLAY PCB
Remove the display PCB fixing screw.
3-11 ICE BUTTON ASSEMBLY
1) Pull bottom of button lever to separate hooks.
2) Separate button lever from right to left.
3-9 DISPENSER
1) As shown picture,
Separate bottom of
display by the flat-head
screwdriver.
2) Separate left side of
display by the flat-head
screwdriver.
CAUTION: When replacing he dispenser cover make
sure the lead wire does NOT come off.
3) Separate display from
left to right.
4) Remove the entire
housing.

- 12 -
3-14 CAP DUCT MOTOR REPLACEMENT
1) Separate the Housing of the Cap Duct Motor.
3) When replacing the motor, check the position of the door
duct and the link for proper fit.
Link
Duct Door
Cap Duct Motor
NG Position
2) Unscrew 3 screws to disassemble the motor.
4) Insert 2 screws.
5) Push housing aside.
- 12 -
3-13 Icemaker replacement
1) Remove 3 screws marked in the picture below.
2) Grasp the bottom of motor cover assembly and pull it out
slowly to remove.
3) Disconnect wire harness from wall of compartment.

- 13 -- 13 -
3-15 HOW TO REMOVE ICE BIN
1) Grip the handles, as shown in the picture.
2) Lift the lower part slightly.
3-16 HOW TO PLACE ICE BIN IN POSITION
1) Insert the Ice Bin, slightly tilting it to avoid touching the
Icemaker. (Especially, Ice-Detecting Sensor)
Note) Before remove ice bin, put on clean golves for
keeping clean ice bin.
3) Take the Ice Bin out slowly.

- 14 -- 14 -
3-17 HOW TO REMOVE AND REINSTALL THE PULLOUT DRAWER
3-17-1 Follow Steps to Remove
Step 1) Open the freezer door.
Step 3) Remove the two screws from the guide rails (one
from each side).
Step 2) Remove the lower basket.
Step 4) Removal of the freezer door is done by l ifting clear
of the rail support.
Fully extend both rails.
Step 5) Remove only 1 screw of gearice, and disassemble
the bar and gearice
Step 6) Remove 2 screws of both side of supporter covers
tv and disassemble the supporter cover tv.

- 15 -- 15 -
3-17-2 Follow Steps to Reinstall
Step 6) Reinstall the freezer door by inserting the rail tabs
into the guide rail.
* Assemble them like as pictures
Step 8) Reinstall the lower basket, and close the freezer
door.
Step 5) The rail system will align itself by pushing the rails
all the way into the freezer section.
Pull the rails back out to full extension.
Step 7) Reinstall the two screws into the guide rails
(one from each side).
Step 1) Insert both side of supporter cover tv into connector
rails, and then screw them.
Step 2) Assemble a bar and gear ice with screw.
Push the otherside of the gear to inside of the
bar.
Step 3) Put gear ice assembled with the bar by screw into
connector rail’s hole.
Step 4) Insert opposite gear ice into connector rail and
screw them

- 16 -- 16 -
3-18 WATER VALVE DISASSEMBLY METHOD
1) Turn off the water to unit. Remove the waterline from the
valve.
3-19 FAN MOTOR ASSEMBLY AND
DISASSMEMBLY METHOD
1) Remove screws for the Drain Pipe Assembly and the 1
connected to the Motor Cover.
2) Remove cover and 1 screw from the valve.
3) Separate the housing and remove the valve.
4) Remove the clip, and press the collet to separate the
tube from the connector. Note: there maybe some water
in the line.
Mechanical Cover
Housing
2) Remove the screw from shroud and Separate the Fan
motor assembly and Shroud.
Assemble in reverse order. Taking care to avoid.
1. Do not to bend the tube during assembly.
2. Press the Water Dispenser button letting water pour out,
this checks for any leaks in the tube connection, this may
vary depending on the water pressure
( about 2 minutes.).

- 17 -- 17 -
3-20 PULL OUT DRAWER
Top Drawer
1. Use a flat blade screwdriver to push the tab in on the left rail and push the tab on the right rail in with your finger.
Once the tabs have been pushed in, you can lift the tray up and out.
2. Pull both rails out to the full extension and insert the insert the back of the tray into both rails. Then set the front of the
tray into the rail and push it until you hear it click into place.
Middle Drawer
1. To remove the middle drawer.
Pull the drawer out to full extension. Lift the front of the drawer up, then pull it straight out.
2. To install, slightly tilt up the front and insert the drawer into the frame and push it back into push it back place.

- 18 -- 18 -
3-21 CAUTION : Sealed System Repair
Before making a sealed system repair : Start with the power cord unplugged from the outlet. Plug in the power cord and
between 6 and 12 seconds after it has been pugged in, unplug it from the power source. this will allow both sides of the 3
way valve to be opened to allow for proper evacuation.
3-22 Way Valve Service Whole picture of refrigerator
R-Evaporator
F-Evaporator
｡ The3wayvalvehasplasticpartsinside,soalwayswrap
it with a wet cloth before servicing when using a torch.
1) Always replace the 3 way valve if there is a leak at any
one of the 3 tubes coming from it.
2) Service in replacement of valve (valve failure) Perform
service in the same method as above.
Note : To service sealed system, follow the directions in "3-22" and "3-23" above.Then service is the same as a single
evaporator system.
3 way valve
To Freezer(Refrigerant outlet)
Dryer Side(Refrigerant Inlet)
To Fresh Food
(Refrigerant outlet)
R-Evaporator
F-Evaporator
3 Way Valve
R-Evaporator
F-Evaporator

- 19 -- 19 -
3-23 HOW TO REMOVE AND REINSTALL THE HOMEBAR
3-23-1 CASE ASSEMBLY, HOME BAR
The Home Bar is removable for easy cleaning and
adjustment.
1. To remove the Home Bar, Slopingly lifts the Home Bar
up and pulls straight out.
2. To replace the Home Bar, Slopingly slides it in above
the desired support and push down until it snaps into
place.
NOTE : Some Home Bar may vary in appearance and
will only fit in one location.
3-23-2 DOOR BASKET OF HOME BAR DOOR
The Door Baskets are removable for easy cleaning and
adjustment.
1. To remove the Door Baskets, simply lifts the Door
Baskets up and pulls straight out.
2. To replace the Door Baskets, slides it in above the
desired support and push down until it snaps into place.
NOTE : Some Door Baskets may vary in appearance
and will only fit in one location.
3-23-3 DOOR BASKET OF HOME BAR
The Door Baskets of Homebar are removable for easy cleaning and adjustment.
1. To remove the Door Baskets of Homebar, simply lifts the Door Baskets of Homebar up and pulls straight out.
2. To replace the Door Baskets of Homebar, slides it in above the desired support and push down until it snaps into
place.
NOTE : Some Door Baskets of Homebar may vary in appearance and will only fit in one location.

- 20 -- 20 -
3-23-4 COVER FRONT
3-24 HOW TO REMOVE AND REINSTALL THE HOMEBAR DOOR
The Cover Front is removable for easy cleaning and adjustment.
1. To remove the Cover Front, simply lifts the basket doorr up and pulls slopingly out.
2. Remove two screws of The Cover Front and pull slopingly straight out.
NOTE : To replace the Cover Front and basket door, Slide them in above desired support and push down until them
snaps into place.
1. Remove three Screws on the Top
of Frame Door.
2. Pull Frame Door. up and
out.