LG LMXS28596 Series User manual
CAUTION
BEFORE SERVICING THE UNIT,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
REFRIGERATOR
SERVICE MANUAL
CONFIDENTIAL
Any reproduction, duplication, distribution (including by way of email, facsimile or other electronic means), publication,
modification, copying or transmission of this Service Manual is STRICT Y 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 prohi-
bition includes, without limitation, any text, graphics or logos in this Service Manual.
Copyright © 2019LG Electronics Inc. All rights reserved. Only training and service purposes.
MODEL :LMXS28596*
COLOR : BLACK STAINLESS(D)
STAINLESS(S)
-2-
CONTENTS
Copyright © 2019 LG Electronics Inc. All
rights reserved. Only training and service purposes
SAFETY PRECAUTIONS .........................................................................................................................................2
1. SPECIFICATIONS ................................................................................................................................................3
2. PARTS IDENTIFICATION.....................................................................................................................................4
3. DISASSEMBLY................................................................................................................................................5-18
REMOVING AND REPLACING REFRIGERATOR DOORS ................................................................................................... 5
DOOR ...................................................................................................................................................................................... 6
DOOR ALIGNMENT ................................................................................................................................................................ 7
FAN AND FAN MOTOR(EVAPORATOR) ............................................................................................................................... 7
DEFROST CONTROL ASSEMBLY......................................................................................................................................... 8
MULTI DUCT ........................................................................................................................................................................... 8
MAIN PWB............................................................................................................................................................................... 9
DISPENSER ............................................................................................................................................................................ 9
DISPLAY PCB ......................................................................................................................................................................... 9
ICE BUTTON ASSEMBLY....................................................................................................................................................... 9
WATER BUTTON ASSMEBLY.............................................................................................................................................. 10
ICE CORNER DOOR REPLACEMENT ................................................................................................................................ 10
ICEMAKER REPLACEMENT ...........................................................................................................................................10-11
SUB PWB FOR WORKING DISPENSER ............................................................................................................................. 11
CAP DUCT MOTOR REPLACEMENT .................................................................................................................................. 11
HOW TO REMOVE A ICE BIN .............................................................................................................................................. 12
HOW TO INSERT A ICE BIN ................................................................................................................................................ 12
HOW TO REMOVE AND REINSTALL THE PULLOUT DRAWER .................................................................................13- 14
FAN AND FAN MOTOR DISASSEMBLY METHOD ............................................................................................................. 17
DRAWER REMOVAL ............................................................................................................................................................ 18
4. ADJUSTMENT....................................................................................................................................................19
5. CIRCUIT DIAGRAM............................................................................................................................................20
6. TROUBLESHOOTING........................................................................................................................................21
7. PCB PICTURE ...............................................................................................................................................22-23
8. TROUBLESHOOTING WITH ERROR DISPLAY ..........................................................................................24-37
9. TROUBLESHOOTING WITHOUT ERROR DISPLAY...................................................................................44-70
10. REFERENCE ...............................................................................................................................................71-74
11. COMPONENT TESTING INFORMATION ...................................................................................................75-81
12. COMPRESSOR TROUBLESHOOTING......................................................................................................82-91
13. ICEMAKER OPEARTING AND TROUBLE SHOOTING METHOD..........................................................92-101
14. DESCRIPTION OF FUNCTION & CIRCUIT OF MICOM.........................................................................101-105
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 - 2018 LG Electronics Inc. All rights reserved. Only training and service purposes.
-3-
SPECIFICATIONS
- 3 -
1. SPECIFICATIONS
1-1
ITEMS
−—‹
ƽ
27.6 cu.ft.
ITEMS
SPECIFICATIONS
ƽDIMENSIONS
˛Š
LMXS28596*
33 3/4
(857 mm)
28 7/8
(759 mm)
48 1/2
(1232 mm)
36 1/4
(921 mm)
LMXS28596*
ı˝ flfi™
Copyright © 2019 LG Electronics Inc. All
rights reserved. Only training and service purposes
SPECIFICATIONS
WH76u
622
-4-
PARTS IDENTIFICATION
- 4 -
Crisper
Fixed Door Bin Glide‘N’Serve
Durabase
®
and Durabase
®
Divider
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Refrigerator Interior
LED interior lamps
In-door Icemaker
(Refrigerator)
Auto-Closing Hinge
(On Some Models)
Removable Ice Storage Bin
Door-in-Door Case
-5-
3. DISASSEMBLY
Removing Refrigerator Door
CAUTION :
Left Door -FIG. 2
š
‡
—
–
CAUTION :
ƒ
Right Door -FIG. 3
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CAUTION :
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Figure 1
Figure 2 Figure3
3. DISASSEMBLY
- 5- −ˆ
-6-
- 6 -
1. Remove gasket
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
2. Insert mullion into the channel.
Mullion Replacement
1. Connect wire harness.
3. Assemble 2 screws.
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
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3-6 DEFROST CONTROL ASSEMBLY
Figure 12 Figure 13
3-4 Door Alignment
3-5 FAN AND FAN MOTOR(EVAPORATOR)
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Figure 10
Figure 11
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3-7-2 Cap Decor LED LAMP(Bottom)
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3-8 MAIN PWB
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3-9 DISPLAY PCB
Figure 20
Figure 21
Figure 22
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-11-
- 1 -- 11 -
3-10 ICE CORNER DOOR REPLACEMENT
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3-11 ICEMAKER REPLACEMENT
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Figure 32
Figure 33
Figure 34
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Figure 35
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- 12 -
3-12 CAP DUCT MOTOR REPLACEMENT
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Figure 36
Figure 43
Figure 42
Figure 41
Figure 40
Figure 39
-13-
- 13 -
3-17 HOW TO REMOVE A ICE BIN
˜°
3-18 HOW TO INSERT A ICE BIN
˜°
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Figure 44
Figure 45
Figure 46
Figure 47
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-14-
- 14 -
3-19 HOW TO REMOVE AND REINSTALL THE PULLOUT DRAWER
3-19-1 Follow Steps to Remove
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3-19 HOW TO REMOVE AND REINSTALL THE PULLOUT DRAWER
3-19-1 Follow Steps to Remove
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3-19-2 Follow Steps to Reinstall
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-16-
- 16 -
3-21 WATER VALVE DISASSEMBLY METHOD
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Figure 60
Figure 61
Figure 62
Figure 63
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-17-
- 16 -
3-21 WATER VALVE DISASSEMBLY METHOD
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Figure 60
Figure 61
Figure 62
Figure 63
3-22
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- 17 -
3-23 Drawer Removal
Figure 66
Figure 67
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How to disassemble and
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How to disassemble vegetable box
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1. Cover TV service method (GC-J288***)
Chapter 13 How to disassemble and assemble the vegetable box
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-19-
4. ADJUSTMENT
- 19 -
4-2-3 Compressor protection logic
4. ADJUSTMENT
4-1-1 Role
4-1 COMPRESSOR
4-1-2 Note for Usage
fi’
fi−
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4-1-3 Remove the cover PTC
(1) Remove the Cover Back M/C
(2) Loosen two screws on comp base
(3) Use a L-shaped flap tooll to pry off the cover
(4) Assembly in reverse order of disassembly
Žˆ −‰’•ˆ –ıˆ ‡ˇˇˆ
5. CIRCUIT DIAGRAM
MEZ66414033 (Label,Circuit)
-20- Copyright © 2016 - 2018 LG Electronics Inc. All
rights reserved. Only training and service purposes
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