LG LSXS26466 Series Service Manual
  1. Manuals
  2. Brands
  3. LG Manuals
  4. Refrigerator
  5. LSXS26466
  6. Service manual

LG LSXS26466 Series Service Manual

Sxs
Hide thumbs Also See for LSXS26466 Series:
Table of Contents

Advertisement

Quick Links

See also: Owner's Manual
REFRIGERATOR
SERVICE MANUAL
CAUTION
PLEASE READ CAREFULLY THE SAFETY PRECAUTIONS OF THIS MANUAL
BEFORE CHECKING OR OPERATING THE REFRIGERATOR.
MODELS:
*
LSXS26466
*
LSXS26386
*
LSXS26366
*
LSXS26326

Advertisement

Table of Contents
loading

Related Manuals for LG LSXS26466 Series

Summary of Contents for LG LSXS26466 Series

  • Page 1 REFRIGERATOR SERVICE MANUAL CAUTION PLEASE READ CAREFULLY THE SAFETY PRECAUTIONS OF THIS MANUAL BEFORE CHECKING OR OPERATING THE REFRIGERATOR. MODELS: LSXS26466 LSXS26386 LSXS26366 LSXS26326...

  • Page 2: Table Of Contents

    CONTENTS CONTENTS SAFETY PRECAUTIONS ........................... 1. SPECIFICATIONS ............................ 2. PARTS IDENTIFICATION ........................3. DISASSEMBLY ............................1. Door Alignment............................2. Install Water Filter............................3. Refrigerator Shelves..........................4. Icemaker..............................4. HOW TO DISASSEMBLY AND ASSEMBLY................
  • Page 3 Safety Warning and Cautions Chapter 1 Safety Warning and Cautions ► Observing cautions for safety can prevent accidents and dangers. ► Cautions are classified into Warning and Caution and the meanings are as follows WARNING WARNING indicates the possibility of serious injury or death if the instructions are not followed.
  • Page 4 Safety Warning and Cautions WARNING If grounding is required, be sure to Do not store poisonous, consult an electrician. flammable, or explosive chemicals in the refrigerator. The refrigerator must be plugged in There is danger of to a properly rated explosion and fire.
  • Page 5 Safety Warning and Cautions WARNING Do not alter the power cord. Do not place heavy objects on the Replace it only with an exact factory refrigerator. replacement part. Falling objects when opening or closing doors Electric shock or fire may occur may cause injury.
  • Page 6 Safety Warning and Cautions WARNING Do put the vessel that flower base, Do not accumulate objects on a cup, cosmetics or drugs, etc refrigerator or do not keep are contained on the foods in random method. refrigerator. Dropping of objects when opening or closing the door may cause Fire or electric shock may occur, or physical injury.
  • Page 7 Safety Warning and Cautions WARNING power plugs catching with the end Do not use power cords or power of plugs without catching cords. plugs when they are damaged or holes of power plugs are loose. Fire may occur due to electric Fire may occur due to shock or short-circuit.

  • Page 8: Product Standards

    Product Standards Model LSXS26466* LSXS26386* LSXS26366* LSXS26326* Total inner capacity(L) 738.66L (26.09 Cu.ft) 742.49L (26.22 Cu.ft) Effective inner F-Room 260.59L (9.20 Cu.ft) 260.59L (9.20 Cu.ft) capacity R-Room 478.07L (16.89 Cu.ft) 481.90L (17.02 Cu.ft) Outer dimension ( W X D X H ) 35 7/8"...
  • Page 9 Circuit Diagram...

  • Page 10: Specifications

    Specifications 1. Specifications Unit : inch (mm) Model LSXS26466 LSXS26386 LSXS26366 LSXS26326 ltem Width (A) 35.9 (912) Width When opening door by 90° (including handle) (B) 39.6 (1005) Case (including back handle) (C) 28 7 730 After disassembling door (including hinge, L) (D) 31 5 800 Including door (not including handle) (E) 33 4 848...

  • Page 11: Icemaker

    Appearance Size of Refrigerator and Name of Every Part 2. Main Name MODEL : LSXS26466 LSXS26386 LSXS26366 Freezer Refrigerator Compartment Compartment Dairy Corner LED Lamp Filter LED Lamp Automatic Icemaker Shelf Shelf Refreshment center Shelf Door Bin Freezing Zone Fresh zone Door Bin Door Bin...
  • Page 12 Appearance Size of Refrigerator and Name of Every Part 2. Main Name MODEL : LSXS26326* Freezer Refrigerator Compartment Compartment Dairy Corner LED Lamp Filter LED Lamp Automatic Icemaker Door Bin Shelf Shelf Shelf Door Bin Door Bin Door Bin Freezing Zone Fresh zone Door Bin Door Bin...

  • Page 13: Dispenser

    Micom Function 1. Operating Panel MODEL : LSXS26466* Ice Type Dispenser Refrigerator Selection Button Temperature adjustment button for refrigerator compartment Freezer Temperature Ice Plus adjustment button Ice on / off for freezer compartment Ice Plus button(1sec) Ice Making ON Light / OFF 3secs button Water Filter Dispenser light...

  • Page 14: Micom Function

    Micom Function 1. Operating Panel MODEL : LSXS26386 LSXS26366 LSXS26326 Ice Type Dispenser Refrigerator Selection Button Temperature adjustment button for refrigerator compartment Freezer Temperature Ice Plus adjustment button Ice on / off for freezer compartment Ice Plus button(1sec) Ice Making ON Light / OFF 3secs button Water Filter...
  • Page 15 Micom Function 2. Function description 2-1. Funnction of Temperature Selection Power Notch Temp 1st press 2nd press 3rd press 4th press 5th press 6th press 7th press 8th press 9th press 10th press 11th press 13th press 12th press Initiallly On Freezer °F Refrigeration...
  • Page 16 Micom Function 2-5. Control of variable type of freezing room fan 1. To increase cooling speed and load response speed, MICOM variably controls freezing room fan motor at the high speed of RPM and standard RPM. 2. MICOM only operates in the input of initial power or special freezing operation or load response operation for the high speed of RPM and operates in the standard RPM in other general operation.
  • Page 17 Micom Function 2-10. Function of Trouble Diagnosis(88-LED) 1. Failure diagnosis function is function to facilitate service when nonconforming matters affecting performance of product during use of product. 2. In occurrence of failure, pressing the function adjustment button does not perform function and only alarm sound (“Ding~”) rings.

  • Page 18: Test Function

    Micom Function 2-11. Test Function 1. Test function is function to find out any failed part in the failure status or check function of PWB and the product. 2. The test button is placed on the main PCB (test switch) of the refrigerator. The refrigerator ends the test mode after Max. 2 hours irrespective of modes and returns to normal status (reset).
  • Page 19 Micom Function 2-13 Ice on / off function Press Ice on/off Button to select Ice Making on or off. Ice on Mode in factory default setting. Ice on Ice on / off BUTTON Ice off Ice on / off BUTTON...

  • Page 20: Icemaker And Dispenser Working Principles And Repair

    Icemaker and dispenser working principles and repair 1. OPERATION PRINCIPLE 1-1. Operation Principle of Icemaker Power On • Adjusts EJECTOR to Start Position with power on. Start Position Icemaking • Waits until water becomes cold after starting the Mode icemaking operation. Checking full •...
  • Page 21 Icemaker and dispenser working principles and repair 2. Function TEST CAUTION! Before you carry out the test mode, check whether the water is frozen in the icemaker completely. If the test is performed while the water is not frozen in the icemaker, The water may overflow after test and it will cause other serious problem.

  • Page 22: Micom Circuit Description

    Micom Circuit description 1. Refrigerator undercool/overcool compensation circuit Temperature compensation from cut JCR1 JCR2 JCR3 JCR4 Undercool compensation Overcool compensation Refrigerator temperature Remarks compensation JCR3 JCR4 JCR1 JCR2 (Factory default) Above option circuit compensates the refrigerator temperature by simply cutting the circuit during the service.
  • Page 23 Micom Circuit description 2. Freezer undercool compensation circuit Temperature compensation from cut JCF3 JCF4 Undercool compensation Freezer temperature Remarks compensation JCF3 JCF4 (Factory default) ►Above option circuit compensates the freezer temperature by simply cutting the circuit during the service. 2-1. Communication circuit and connecting L/wire between main PCB and display PCB As the communication circuit, the following circuit exchanges information required between main MICOM of main PCB and MICOM exclusively for LED for LED control of display PCB.
  • Page 24 Micom Circuit description 3. Table of sensor resistance characteristics Refrigerator sensor 1, 2, defrost Measured temperature Freezer sensor sensor, external sensor 22.3kΩ 77kΩ 16.9kΩ 60kΩ 13kΩ 47.3kΩ 10.1kΩ 38.4kΩ 7.8kΩ 30kΩ 6.2kΩ 24.1kΩ 4.9kΩ 19.5kΩ 3.9kΩ 15.9kΩ 3.1kΩ 13kΩ 2.5kΩ 11kΩ...
  • Page 25 Micom Circuit description...
  • Page 26 Compressor 12-1 INFORMATION OF LINEAR COMPRESSOR The information tag provides compressor model, refrigerant, serial number and safety approval Compressor Label 1. Compressor Model F L B 0 7 5 L A N A Operating Type Series name A : A-Inverter DLF/FA/FB E : E-Inverter Displacement...
  • Page 27 Compressor To reduce noise level, the piston stroke is slowly increased to full power during start up. Step 1) Start up - Half stroke interval for first 30 seconds. Step 2) Ramp up - Stroke increases every 0.8sec until maximum stroke length is reached (about 3 min, 15 sec) Step 3) CVCF interval - 180V / 60Hz Step 1) Start up - Half stroke interval for first 20...
  • Page 28 Compressor CON201 Time>30sec Power off Power ON PCB OK Disconnect ≒ Y& V 200 Replace drver Comp FLB075(A-Inverter) Ref. Display & sound Refer TEST1 Forced Starting TDC (Full Stroke) Display ON, Buzz 1 time...
  • Page 29 Compressor 12-1 Check A Dear is PC board located in the PCB case. The control driver is PC board for the compressor. This step shows the source voltage of the driver PC board. Step 1. Open PCB Cover Step 2. Check Driver PCB * Driver PCB located in machine room.

  • Page 30: Protection Logic

    Compressor 12-1 Check B B1. LED blinks once, then repeats (FCT0 Fault: A-Inverter) Blink OFF Blink OFF - Purpose: Detecting motor current and voltage error - Check voltage at point A (Motor Voltage), point B (Motor Current) and Point C (Capacitor Voltage) when compressor is off.
  • Page 31 Compressor...
  • Page 32 Compressor Protection Compressor blink 6 times logic Intermittently (Current Trip)check B5 Check B Works Replace IPM Check Driver PCB Compressor Replace Damage Compressor Check Reset Repeat Current trip Power Check Procedure occur? Replace Compressor Cycle blockage? Compressor Doesn’t works Sealed system Cycle check Repair...
  • Page 33 Compressor...
  • Page 34 Compressor...
  • Page 35 Compressor...
  • Page 36 Troubleshooting Chapter 9 Troubleshooting 1. PCB Picture - Main PCB EBR765311 P/No & MFG CON9 CON8 CON5 CON7 CON3 CON6 Picture CON1 CON201...
  • Page 37 Troubleshooting 2. Troubleshooting With Error Display 1) Freezer Sensor Error(FS E) Checking flow Result & SVC Action Check for a loose connection. Check the Pin10(1) to Pin11(2) ResultSVC Action of CON8. Short Change the sensor Open Replace the refrigerator Check the Temp and CON8 Normal resistance (Table-1)
  • Page 38 Troubleshooting 2-1. Freezer Sensor Error (FS E) Symptom Check Point 1. FS E 1. Check for a loose connection 2. Check Sensor Resistance CON201 CON8 CON6 CON7 CON1 CON9 CON3...
  • Page 39 Troubleshooting Freezer Sensor Error (FS E) Reconnect or Is the Connector disconnected Check the Sensor resistance. repair the or loose between Main PCB and Is resistance normal? connector sensor? Check the Temperature and resistance refer to the table. No problem? CON8 Resistance [Ω] pin ~ 11...
  • Page 40 Troubleshooting 2-2. Refrigerator Sensor Error (rS E) Symptom Check Point 1. rS E 1. Check for a loose connection 2. Check Sensor Resistance CON201 CON8 CON6 CON7 CON1 CON9 CON3...
  • Page 41 Troubleshooting Refrigerator Sensor Error (rS E) Reconnect or Is the Connector disconnected Check the Sensor resistance. repair the or loose between Main PCB and Is resistance normal? connector sensor? Check the Temperature and resistance refer to the table. No problem? CON6 Resistance [Ω] pin ~ 6...
  • Page 42 Troubleshooting 2-3. Refrigerator Sensor Error (r2 E) Symptom Check Point 1. r2 E 1. Check for a loose connection 2. Check Sensor Resistance CON201 CON8 CON6 CON7 CON1 CON9 CON3...
  • Page 43 Troubleshooting Icing Sensor Error (r2 E) Reconnect or Is the Connector disconnected Check the Sensor resistance. repair the or loose between Main PCB and Is resistance normal? connector sensor? Check the Temperature and resistance refer to the table. No problem? CON6 Resistance [Ω] pin ~ 8...
  • Page 44 Troubleshooting 2-4. Ambient Sensor Error (rt E) Symptom Check Point 1. rt E 1. Check for a loose connection 2. Check Sensor Resistance CON201 CON8 CON6 CON7 CON1 CON9 CON3...
  • Page 45 Troubleshooting Defrost Sensor Error (rt E) Reconnect or Is the Connector disconnected Check the Sensor resistance. repair the or loose between Main PCB, Is resistance normal? connector Defrost controller and Sensor? Check the Temperature and resistance refer to the table. No problem? CON7 Resistance [Ω]...
  • Page 46 Troubleshooting 2-5. Defrost Sensor Error (dS F) Symptom Check Point 1. dS F 1. Check for a loose connection 2. Check Sensor Resistance CON201 CON8 CON6 CON7 CON1 CON9 CON3...
  • Page 47 Troubleshooting Defrost Sensor Error (dS F) Reconnect or Is the Connector disconnected Check the Sensor resistance. repair the or loose between Main PCB, Is resistance normal? connector Defrost controller and Sensor? Check the Temperature and resistance refer to the table. No problem? Check the Orange(1) to...
  • Page 48 Troubleshooting 2-6. Defrost Heater Error (dH F) Symptom Check Point 1. F dH 1. Check the door gasket 2. Check the Defrost control part 3. Check the PCB output voltage CON201 CON8 CON6 CON7 CON1 CON9 CON3...
  • Page 49 Troubleshooting 2-6. Defrost Heater Error (dH F) Symptom Check Point 1. F dH 1. Check the door gasket 2. Check the Defrost control part 3. Check the PCB output voltage CON201 CON8 CON6 CON7 CON1 CON9 CON3...
  • Page 50 Troubleshooting...
  • Page 51 Troubleshooting 2-7. Freezer Fan Error (FF E) Symptom Check Point 1. FF E 1. Reset the unit and Input Test 1 Mode. 2. Open the freezer door and Check the air flow. 3. Check the Fan motor. 4.Check the Fan motor Voltage. CON201 CON8 CON6...
  • Page 52 Troubleshooting...
  • Page 53 Troubleshooting 2-8. Condensor Fan Error (CF E) Symptom Check Point 1. CF E 1. Reset the unit and Input Test 1 Mode. 2. Open the fan rotating. 3. Check the Fan motor and surrounding. 4.Check the Fan motor Voltage. CON201 CON8 CON6 CON7...
  • Page 54 Troubleshooting...
  • Page 55 Troubleshooting 2-9. Communication Error (CO E)
  • Page 56 Troubleshooting 3. COMP operation error 1.Open the PWB COVER When the COMP is normal, it will 2.Check the number of LED blinks not blink (Refer to the next page for resolution by number of LED blinks 1.Open the BACK COVER 3.Check the COMP connector voltage (Measure without...
  • Page 57 Troubleshooting 4. Resolution by number of LED blinks LED operating condition Cause Service guide 1. After resetting the power check LED blinking 1 time repeatedly PCB part normal operation defect . When the same symptom occurs again after taking action for 1, (MICOM) Blink -Off-Blink-Off-Blink-Off-Blink-Off-Blink-Off Repeat...
  • Page 58 Troubleshooting 5. Reference 1) TEST MODE and Removing TPA 1.How to make TEST MODE If you push the test button on the Main PCB, the refrigerator will be enter the TEST MODE * 2 times :Forced defrost mode * 1 time :Comp / Damper / All FAN on (All things displayed) (22 22 displayed) Main PWB...
  • Page 59 Troubleshooting 2) TEMPERATRUE CHART - FRZ AND ICING SENSOR TEMP RESISTANCE VOLTAGE -39°F( -40°C) 73.29Ω 4.09 V -30°F(-35°C) 53.63Ω 3.84 V -21°F(-30°C) 39.66Ω 3.55 V -13°F( -25°C) 29.62Ω 3.23 V -4°F(-20°C) 22.33Ω 2.89 V 5°F(-15°C) 16.99Ω 2.56 V 14°F( -10°C) 13.05Ω...
  • Page 60 Troubleshooting 3) TEMPERATRUE CHART - REF AND DEF SENSOR TEMP RESISTANCE VOLTAGE -39°F( -40°C) 225.1Ω 4.48 V -30°F(-35°C) 169.8Ω 4.33 V -21°F(-30°C) 129.3Ω 4.16 V -13°F( -25°C) 99.3Ω 3.95 V -4°F(-20°C) 76.96Ω 3.734 V 5°F(-15°C) 60.13Ω 3.487 V 14°F( -10°C) 47.34Ω...
  • Page 61 Troubleshooting 4) TEMPERATRUE CHART - AMBIENT SENSOR TEMP RESISTANCE VOLTAGE -39°F( -40°C) 225.1Ω 4.79 V -30°F(-35°C) 169.8Ω 4.72 V -21°F(-30°C) 129.3Ω 4.64 V -13°F( -25°C) 99.3Ω 4.54 V -4°F(-20°C) 76.96Ω 4.43 V 5°F(-15°C) 60.13Ω 4.29 V 14°F( -10°C) 47.34Ω 4.13 V 23°F( -5°C) 37.55Ω...

  • Page 62: How To Disassemble And Assemble

    How to disassemble and assemble (4) Lift up the freezer door 1 in arrow direction and disconnect 1. DOOR the door from the lower hinge 2 . Don’t pull the door forward. 1) Disconnect water supply tube 2 in the lower part of freezer door.
  • Page 63 How to disassemble and assemble 3-12 ICE BUTTON ASSEMBLY 3-10 DISPENSER 1) Remove the 1 screw holding the lever. 2) Remove the spring from the hook. 3) Push and pull on the tab to remove. 2) Use these 2 holes to pull 1) Pull out the drain out the bottom Button Lever...
  • Page 64 How to disassemble and assemble 4.WATER VALVE DISASSEMBLY METHOD 1)Turn off the power of the refrigerator (pull out the plug). 4)Separate the Mechanical Cover and Valve Screw. Open the FREEZER and REFRIGERATOR Door and Mechanical Cover disassemble the Lower Cover. 5)Separate the housing and pull out the valve.
  • Page 65 How to disassemble and assemble 4.WATER VALVE DISASSEMBLY METHOD 1)Turn off the power of the refrigerator (pull out the plug). 4)Separate the Mechanical Cover and Valve Screw. Open the FREEZER and REFRIGERATOR Door and Mechanical Cover disassemble the Lower Cover. 5)Separate the housing and pull out the valve.
  • Page 66 How to disassemble and assemble 6. ICEMAKER DISASSEMBLY METHOD 2) Hold the front of the Cover,TV and Pull it out completely. Note :to disassemble the icemaker, separate Motor, AC from the door first. disassemble Ice bin and cover. Cover 3) Loosen 1 Screw on the Water Tank. Ice bin Separate the Motor,AC from the door.
  • Page 67 How to disassemble/reassemble the refrigerator home bar How to disassemble/reassemble the refrigerator home bar 1. Family home bar model 1-2. The Method to disassemble the Home Bar button 1-1. How to disassemble the home bar 1. Separate the H/Bar Gasket adjacent to the Holder,Lever,and then unscrew three screws.
  • Page 68 How to adjust the refrigerator door level difference How to adjust the refrigerator door level How to adjust the door level difference difference * It may be unleveled concerning installed condition of the floor. 1. When the refrigerator door is low 1.

  • Page 69: Heavy Repair Method Of Refrigerator By Application Of Refrigerant

    Heavy Repair Method of Refrigerator by Application of Refrigerant Heavy Repair Method of Refrigerator by Application of Refrigerant 1. Heavy Repair SVC Method For the heaver repair of R134a type of refrigerator, perform work according to following SVC method. 1-1. Return of Refrigerator Refrigerant Required equipment: Pinch pliers, refrigerant discharging hose, refrigerant returnbag •...
  • Page 70 Heavy Repair Method of Refrigerator by Application of Refrigerant 1-2. Return of Remained Refrigerant Required equipment: Pinch pliers, hose for refrigerant recovery, vacuum pump If refrigerant returntime of 7 minutes has passed, connect a vacuum pump at the ends of a refrigerant returnhose outdoor.
  • Page 71 Heavy Repair Method of Refrigerator by Application of Refrigerant 1-4. Charging Tube Connection Step Required equipment: Charging tube, simple welding machine Remove a charging pipe to recharge R134a refrigerant after completing work, and then connect a charging tube with welding Suction Pipe Charging Tube Discharge Pipe...
  • Page 72 Heavy Repair Method of Refrigerator by Application of Refrigerant 1-6. Refrigerant Charging Required equipment: Bombe, R134 a refrigerant (Energy Star Al spiral condenser model 165g DOE Fe wire condenser model 175g • Firstly remove fire appliances and heating source for performing work when charging scaled refrigerant. (Do not spray refrigerant indoor.) •...

  • Page 73: Exploded View

    #EV# #EV# EXPLODED VIEW FREEZER DOOR 131C 600A 200A 201A 203A 131D 405H 282G 612A 280A 113F 113E 606A 241G 244A...

  • Page 74: Refrigerator Door

    #EV# #EV# REFRIGERATOR DOOR 241D 241H 230A 231A 231B 271D 241F 233A 212G 212K 241B 244F 212J 212K 241A...

  • Page 75: Freezer Compartment

    #EV# FREEZER COMPARTMENT 120E 625A 312C 281A 271B 271A 404A 619A 330B 405A 329A 405D 332A 405G 135J 301A 316B 149A 332B 149C 128C 128D 128E 161C 128F 281G 136A 135D 319B 136B...
  • Page 76 #EV# REFRIGERATOR COMPARTMENT 625A 281B 271B 611E 271C 120B 140A 120A 120D 154B 136C 128G 128H 611B 621B 616K 281H 154A 610E 615A 623A 627B 627C 151A...
  • Page 77 #EV# MACHINE COMPARTMENT 103B 411A 501F 103A 410G 410H 308A 501A 304A 316A 307A 105A 314A 314A 317A 318A 319C 404B 405C 405F 329C 319E 312A 319A 315A 323B 105F...
  • Page 78 August, 2014 MFL62215930...

This manual is also suitable for:

Lsxs26366 seriesLsxs26386 seriesLsxs26326 seriesLsxc22386Lsxc22336Lsxc22326

Table of Contents