LG LFX28978 series Service Manual
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LG LFX28978 series Service Manual

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See also: Owner's Manual
REFRIGERATOR
SERVICE MANUAL
CAUTION
BEFORE SERVICING THE UNIT,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
MODEL : LFX28978**
LFX25978**
COLOR : STAINLESS(ST)
SMOOTH BLACK(SB)
SUPER WHITE(SW)

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Summary of Contents for LG LFX28978 series

  • Page 1 REFRIGERATOR SERVICE MANUAL CAUTION BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. COLOR : STAINLESS(ST) SMOOTH BLACK(SB) SUPER WHITE(SW) MODEL : LFX28978** LFX25978**...

  • Page 2: Table Of Contents

    CONTENTS SAFETY PRECAUTIONS ............................... 2 1. SPECIFICATIONS ................................3-4 2. PARTS IDENTIFICATION ..............................5 3. DISASSEMBLY ................................6-17 REMOVING AND REPLACING REFRIGERATOR DOORS ..................... 6 DOOR ....................................7 DOOR ALIGNMENT ................................8 FAN AND FAN MOTOR(EVAPORATOR) ......................... 8 DEFROST CONTROL ASSEMBLY ........................... 8 LAMP ....................................

  • Page 3: Specifications

    1. SPECIFICATIONS 1-1 LFX28978** 28 cu.ft. ITEMS SPECIFICATIONS ITEMS SPECIFICATIONS DOOR DESIGN Side Rounded VEGETABLE TRAY Clear Drawer Type 3 /4 3 /8 3 /4 DIMENSIONS (inches) X 35 X 69 (WXDXH) 28cu.ft. COMPRESSOR Linear NET WEIGHT (pounds) 155kg (342lb) EVAPORATOR Fin Tube Type COOLING SYSTEM...
  • Page 4 1-2 LFX25978** 25 cu.ft. ITEMS SPECIFICATIONS ITEMS SPECIFICATIONS DOOR DESIGN Side Rounded VEGETABLE TRAY Clear Drawer Type 23 /32 3 /8 3 /4 DIMENSIONS (inches) X 35 X 69 (WXDXH) 25cu.ft. COMPRESSOR Linear NET WEIGHT (pounds) 142kg (313lb) EVAPORATOR Fin Tube Type COOLING SYSTEM Fan Cooling CONDENSER...

  • Page 5: Parts Identification

    2. PARTS IDENTIFICATION ADJUSTABLE REFRIGERATOR SHELVING The refrigerator compartment shelves are adjustable to allow flexibility for storage needs. GALLON STORAGE BINS Three interchangeable bins can be arranged to suit your storage needs. REMOVABLE ICE STORAGE BIN The ice storage bin can be removed to fill ice buckets, coolers, or pitchers.

  • Page 6: Disassembly

    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.

  • Page 7: Door

    3-2 DOOR Door Gasket Replacement 1. Insert gasket into channel Mullion Removal Press gasket into channels on the four remaining 1. Remove 2 screws. sides of door. Figure 5 Figure 1 2. Lift Mullion up carefully. Mullion Replacement 1. Connect wire harness. Figure 2 3.

  • Page 8: Door Alignment

    3-3 Door Alignment * Ice Fan Scroll Assembly Replacement If the space between the door are uneven, 1) Remove the plastic guide on the left side, using a follow the instructions to align them. phillips screwdriver to remove the screws. Remove the Base Grillie.

  • Page 9: Lamp

    3-6 LAMP 3-6-2 Freezer Compartment Lamp 1. Unplug refrigerator power cord form outlet. Unplug, or disconnect power at the circuit breaker. 2. Remove screw with driver. If necessary, remove top shelf or shelves. 3. Grasp the cover Lamp, pull the cover downward. 3-6-1 Refrigerator Compartment Lamp 1) Release 2 screws.

  • Page 10: Main Pwb

    3-8 MAIN PWB 1) Loosen 3 screws on the PWB cover. Figure 26 Figure 27 5) Remove the 4) Holding the inner side of lead wire. the dispenser pull forward to remove. Figure 20 CAUTION: When replacing the dispenser cover make sure the lead wire does NOT come off and the water line 2) Remove the PWB cover is not pinched by the dispenser.

  • Page 11: Water Button Assmebly

    3-12 WATER BUTTON ASSMEBLY 3-14 ICEMAKER REPLACEMENT 1) Remove screws. 1) Remove 4 screws as shown. 2) Grasp the Button assembly and lift. Button Lever Figure 31 Figure 33 2) Grasp the bottom of motor cover assembly and pull slowly. 3-13 ICE CORNER DOOR REPLACEMENT 1) Loosen the front screw as shown in the picture.

  • Page 12: Sub Pwb For Working Dispenser

    CAUTION: Make sure that the motor housing is taped to 3-16 CAP DUCT MOTOR REPLACEMENT the mold, if not positioned correctly the cover will not fit 1) Separate the Housing of the Cap Duct Motor. properly. Figure 39 2) Unscrew 3 screws to disassemble the motor. Figure 36 Figure 40 3) When replacing the motor, check the position of the door...

  • Page 13: How To Remove A Ice Bin

    3-17 HOW TO REMOVE A ICE BIN 3-18 HOW TO INSERT A ICE BIN 1) Grip the handles, as shown. 1) Insert the Ice Bin, slightly tilting to avoid touching the Icemaker. (Especially, Ice-Detecting Sensor) Figure 44 Figure 47 2) Tilt and lift slightly as shown. Figure 45 3) Remove ice bin slowly.

  • Page 14: How To Remove And Reinstall The Pullout Drawer

    3-19 HOW TO REMOVE AND REINSTALL THE PULLOUT DRAWER 3-19-1 Follow Steps to Remove Step 1) Open the freezer door. Step 2) Remove the lower basket. Figure 48 Figure 49 Step 3) Remove 2 screws one on each side of the guide Step 4) Removal of the freezer door is done by lifting clear rails.
  • Page 15 3-19-2 Follow Steps to Reinstall Step 1) Reinstall the right side of the gear into the clip. Figure 53 Step 2) Insert the rail into the right side of the gear. Gears Step 3) Insert the rail into the left side of the gear, and do not need to be perpendicular to each other.

  • Page 16: Water Valve Disassembly Method

    3-20 WATER VALVE DISASSEMBLY METHOD 3-21 FAN AND FAN MOTOR DISASSEMBLY METHOD 1) Turn off the water to unit. Remove the waterline from the 1) Remove screws for the Drain Pipe Assembly and the 1 valve. connected to the Motor Cover. MOTOR COVER Figure 64 Figure 60...

  • Page 17: Drawer Removal

    3-22 Drawer Removal Fully extend the drawer and lift from the front pulling straight out. Figure 66 To install the drawer back into the frame, tilt the front sightly and pushingt back into place. Figure 67 - 17 -...

  • Page 18: Adjustment

    4. ADJUSTMENT 4-1 COMPRESSOR 4-2-3 Compressor protection logic Since linear Comp conducts linear reciprocating motion, 4-1-1 Role we have protection logic for compressor, motor and PCB The compressor intakes low temperature and low pressure as the below. gas from the evaporator of the refrigerator and compresses this gas to high-temperature and high-pressure gas.

  • Page 19: Circuit Diagram

    5. CIRCUIT DIAGRAM LFX28978** - 19 -...
  • Page 20 LFX25978** - 20 -...

  • Page 21: Troubleshooting

    6. TROUBLESHOOTING 6-1 Error Code Summary WARNING: When checking Resistance values, make sure to turn off the power, and wait for the voltage to discharge. NOTE) Within 3 hours after the error : Press the Ice Plus button and Freezer button simultaneously 3 hours after the error : All errors, except for "Er rt", "Er SS", "Er IS(except for Icing sensor)", "Er gF", "Er It"...

  • Page 22: Pcb Picture

    7. PCB PICTURE 7-1 Main PCB LFX28978** P/No & MFG Picture CON1 CON8 CON6 EBR65002710 CON5 CON2 (2010.12~) CON4 CON3 CON10 CON203 EBR65640204 (2010.12~) CON201 CON2 - 22 -...
  • Page 23 LFX25978** P/No & MFG Picture CON1 CON8 CON6 EBR65002714 CON5 CON2 (2010.12~) CON4 CON3 CON10 CON203 EBR65640204 (2010.12~) CON201 CON2 - 23 -...
  • Page 24 7-2 Display PCB & Sub PCB P/No Picture Display PCB EBR65749301 (2010.02~) CON103 CON102 CON101 Sub PCB EBR60070707 (2010.02~) CON2 - 24 -...

  • Page 25: Troubleshooting With Error Display

    8. Troubleshooting With Error Display 8-1 Freezer Sensor Error (Er FS) Checking flow Result & SVC Action Check for a loose connection. Check the Blue/White to Result SVC Action Blue/White. Short Change the sensor Open Replace the refrigerator Check the Temp and Normal resistance (Table-1) <CON6>...
  • Page 26 8-2 Refrigerator Sensor Error (Er rS) Checking flow Result & SVC Action Check for a loose connection. Check the White to White. Result SVC Action Short Change the sensor Open Replace the refrigerator Check the Temp and Normal resistance (Table-2) <CON6>...
  • Page 27 8-3 Icing Sensor Error (Er IS) Checking flow Result & SVC Action Check for a loose connection. Check the Blue to Blue. Result SVC Action Short Change the sensor Open Replace the refrigerator Check the Temp and Normal resistance (Table-1) <Temperature table-1>...
  • Page 28 8-4 Defrost Sensor Error (Er dS) Checking flow Result & SVC Action Check for a loose connection. Check the Orange to Orange. Result SVC Action Short Change the sensor Open Replace the refrigerator Check the Temp and Normal resistance (Table-3) Check the Brown to Brown.
  • Page 29 8-5 Defrost Heater Error (Er dH) Checking flow Result & SVC Action Check the Door gasket. Part Result SVC Action Go to the 3 Check the Defrost control part. Fuse-M Change Fuse-M Fuse Go to the 3 34~42 Sensor Heater Change Fuse-M Go to the 3 Def Heater...
  • Page 30 8-6 Freezer Fan Error (Er FF) Checking flow Result & SVC Action Reset the unit and Input Test 1 Mode. (Push the button 1 time) Open the freezer door and Check the air Status SVC Action flow. No windy Go to 3 While an error code is displayed, the fan is not working.
  • Page 31 8-7 Icing Fan Error (Er IF) Checking flow Result & SVC Action Reset the unit and Input Test 1 Mode. (Push the button 1 time) Open the refrigerator door and Check the Status SVC Action air flow. No windy Go to the 3,4 While an error code is displayed, the fan is not working.
  • Page 32 8-8 Condenser Fan Error (Er CF) Checking flow Result & SVC Action Reset the unit and Input Test 1 Mode. (Push the button 1 time) Check the fan rotation. Status SVC Action While an error code is displayed, No windy Check motor the fan is not working.
  • Page 33 8-9 Communication Error (Er CO) Checking flow Result & SVC Action Check the loose connection. Check the Red to White/Red. Result SVC Action 12 V Go to the 3 Check the Hinge CON101 Other (loose connection) <Display> <CON101> Change the Main PCB Check the Orange to White/Red.

  • Page 34: Troubleshooting Without Error Display

    9. Troubleshooting Without Error Display 9-1 Cube mode doesn’t work Checking flow Result & SVC Action Check the loose connection. Check the Black to White. Lever s/w Result SVC Action (While pushing the lever S/W) 112 ~ 115 V Go to the 3 Pushing Other Change PCB...
  • Page 35 9-2 Crush mode doesn’t work Checking flow Result & SVC Action Check for a lose connection. Check the Sky Blue to White. Lever s/w Result SVC Action (While pushing the lever S/W) 112 ~ 115 V Go to the 3 Pushing Other Change PCB...
  • Page 36 9-3 Water mode doesn’t work Checking flow Result & SVC Action Check the loose connection. Check the Purple to White. Lever s/w Result SVC Action (While pushing the lever S/W) 112 ~ 115 V Go to the 3 Pushing Other Change PCB 0 ~2 V Go to the 3...
  • Page 37 9-4 Freezer room AC Bulb Lamp doesn’t work Checking flow Result & SVC Action Check the Freezer door switch. If it is stuck, Change the door s/w. Check the door S/W resistance. Status Result SVC Action Go to the 3 Normal Change door S/W Go to the 3...
  • Page 38 9-5 Refrigerator room lamp doesn’t work Checking flow Result & SVC Action Check the Refrigerator door switch. If it is stuck, Change the door s/w. Check the door S/W resistance. Status Result SVC Action Go to the 3 Normal Change door S/W Infinity Go to the 3 Push...
  • Page 39 9-6 Poor cooling in Fresh food section Checking flow Result & SVC Action Check the sensor resistance. Temperature Result 23°F / -5°C 32°F / 0°C 41°F / 5°C <CON6> 50°F / 10°C 19.5 The sensor is determined by the temperature. 59°F / 15°C For example, 30 indicates 32°F.
  • Page 40 Checking flow Result & SVC Action Damper checking method. Test Damper Inputting TEST Mode, SVC Action Mode State Check the damper and PCB. 1 Mode Open Damper is normal. (Go to 6) 2 Mode Closed Change the damper mode working Point Result SVC Action...
  • Page 41 9-7 Poor cooling in Freezer compratment Checking flow Result & SVC Action Check the sensor resistance. (1) To (2) Result -22°F / -30°C -13°F / -25°C -4°F / -20°C <CON6> 5°F / -15°C The sensor is determined by 14°F / -10°C the temperature.
  • Page 42 9-8 Over cooling in Fresh food compartment Checking flow Result & SVC Action Check the sensor resistance. Temperature Result 23°F / -5°C 32°F / 0°C 41°F / 5°C <CON6> 50°F / 10°C 19.5 The sensor is determined by the temperature. 59°F / 15°C For example, 30 indicates 32°F.

  • Page 43: Reference

    10. Reference 10-1 TEST MODE and Removing TPA 1. How to enter the TEST MODE Push the test button on the Main PCB to enter the TEST MODE. * 1 time : Comp / Damper / All FAN on (Everything is displayed) * 2 times : Damper closed (22 22 displayed) * 3 times : Forced defrost mode...
  • Page 44 10-2 TEMPERATRUE CHART - FRZ AND ICING SENSOR TEMP RESISTANCE VOLTAGE -39°F (-40°C) 4.09 V 73.29 -30°F (-35°C) 3.84 V 53.63 -21°F (-30°C) 3.55 V 39.66 -13°F (-25°C) 3.23 V 29.62 -4°F (-20°C) 2.89 V 22.33 5°F (-15°C) 16.99 2.56 V 14°F (-10°C) 2.23 V 13.05...
  • Page 45 10-3 TEMPERATRUE CHART - REF AND DEF SENSOR TEMP RESISTANCE VOLTAGE -39°F (-40°C) 4.48 V 225.1 -30°F (-35°C) 4.33 V 169.8 -21°F (-30°C) 4.16 V 129.3 -13°F (-25°C) 3.95 V 99.30 -4°F (-20°C) 3.734 V 76.96 5°F (-15°C) 60.13 3.487 V 14°F (-10°C) 3.22 V 47.34...
  • Page 46 10-4 How to check the Fan-Error (1) EBR650027** After sending a signal to the fan, the MICOM checks the BLDC fan motor s lock status. If there is no feedback signal from the BLDC fan, the fan motor stops for 10 seconds and then is powered again for 15 seconds.

  • Page 47: Component Testing Information

    11. COMPONENT TESTING INFORMATION 11-1 Defrost Controller Assembly Function The controller assembly is made up of two different kinds of parts. The fuse and the sensor. To determine if these parts are defective, check for resistance. The fuse will cut power to the defrost heater at very high temperatures.
  • Page 48 11-2 Sheath Heater Function Sheath heater is a part for defrost. All heating wire is connected to only one line. To check if the part is defective, check the resistance. How to Measure (1) (2) Set a ohmmeter connect to The 2 housing pin. Measure the 2 pin connected to Sheath Heater.
  • Page 49 11-3 Door Heater Assembly Function The heater is designed to prevent the door from sweating. How to Measure Standard Test Point Ressult (1) to (2) 2.3 ~ 2.9 - 49 -...
  • Page 50 11-4 Door Switch Function The switch senses if the door is open or closed. - When the door open, lamp on. - When the door open, the switch give information to Micom. When the door open, internal contact operate on and off moving plunger of door switch up and down.
  • Page 51 11-5 Dispenser DC Motor Function - Dispenser DC Motor : When customer push the dispenser button, Pull duct door and abstract from ice bank. How to Measure Dispensor DC Motor Standard Dispenser DC Motor Test Points Result (1) to (2) 9.9 ~ 12.1 - 51 -...
  • Page 52 11-6 AC Motor ASSEMBLY Function The motor in the door pushed the ice into the dispenser. How to < In-door Motor > < In-door Motor > Measure Separate the Separate the housing. housing. Measure the Measure the resistance between resistance between (1) and (2) (1) and (3) Check the resistance between connectors (In-door motor 1, 2) and...
  • Page 53 11-7 Damper Function The damper supplies cold air from the freezer to the chill room using the damper plate. The chill room is colder when the damper plate is open. When the damper is closed the chill rooms temperature will rise. How to Measure <...
  • Page 54 11-8 Lamp Socket Function The lamp socket connect cover lamp assembly to lamp. The lamp socket fix lamp and unite lamp and cover lamp assembly. The lamp socket supply electric source to lamp also. How to Measure Check the resistance between connector of housing and connector of lamp socket. It means check whether or not applying an electric current.
  • Page 55 11-9 Flow Sensor Function Flow Sensor (in machine room) Count the water quantity from city water to water filter in refrigerator How to Measure Flow Sensor (in machine room) Standard Test Points Result Red wire to Black wire 4 ~ 30 - 55 -...

  • Page 56: Compressor Troubleshooting

    12. Compressor Troubleshooting PCB Check (Simplify) Protection Logic TEST 1 Mode A-inverter Con202 Time>30sec Power Off Power On PCB OK Disconnect & V°÷200 Replace Driver PCB Check Voltage about 200V past 30second after turn on Test Mode Comp Ref. Display & sound Refer FC75(A-Inverter) TEST1...
  • Page 57 12-1 Check A - There is PC Board located in the PCB case. PCB Malfunction Check The control driver is PC board for the compressor. - This step shows the source voltage of the driver PC board. Step1. Open PCB Cover Step2.
  • Page 58 IPM Output check - Measure the voltage between the POWER and COMM pins of the connector as shown below. Check to make sure compressor is receiving voltage from IPM - In order to determine whether the compressor is operating normally, check the output voltage during the refrigeration cycle.
  • Page 59 12-2 Check B B1. LED blinks once, then repeats (FCT0 Fault: A-Inverter) Protection Logic 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 60 B3. LED blinks five times, then repeats (Locked Piston: A & E Inverters) Protection Logic Blink Blink Blink Blink Blink OFF - Purpose: To detect locked piston - Cause: Lack of oil to the cylinder, cylinder or piston damaged and or restricted discharge. A Locked Piston can also be caused by foreign materials inside the compressor.
  • Page 61 B5. LED blinks seven times, then repeats (IPM Fault: A & E Inverters) Protection Logic Blink Blink Blink Blink Blink Blink Blink OFF - Purpose: Prevent high current due to IPM Short - Cause: Damaged IPM (Dead Short) - Test for a dead short at Point A with a VOM. - Logic: Compressor is forced off and tries to restart in 2.5 minutes.
  • Page 62 12-3 Check C C1. Harness Connection Check Check Process C2. Capacitor Specifications C3. Compressor Check - Step 1. Power off. Step 2. Check capacitor spec. (table1). Step3. Check resistance of point A Step 4. Check wire harness (INF ohm). Step 5. Check resistance at point B. Step 6. Point D. Check Check Harness...
  • Page 63 12-4 Check D D1. Activate Protection logic Cycle check with protection logic - We have to check Condenser fan and Freezer fan before performing Check D - Locked Piston, Current trip and stroke trip can be activated by other problems then the driver or compressor. °Ê...
  • Page 64 Compressor Troubleshooting Step 1) Open PWB cover Step 2) Check for blinking frequency of LED, PWB If compressor is normal, it does not blink : Refer to the next page to find out what actions to take according to how many times LED blink - 64 -...
  • Page 65 LED operating condition Cause Service guideline 1. Please check, Whether connector of PCB Parts compressor is attached defect or rightly or not. after LED two - time repetiton (Stroke Trip) Compress power off 2. After the first action, Connector You check on normal miss operation of - off -...
  • Page 66 12-5 SERVICE DIAGNOSIS CHART COMPLAINT POINTS TO BE CHECKED REMEDY • Is the power cord unplugged from the outlet? • Plug into the outlet. No Cooling. • Check if the power switch is set to OFF. • Set the switch to ON. •...
  • Page 67 12-6 REFRIGERATION CYCLE Troubleshooting Chart TEMPERATURE STATE OF STATE OF THE OF THE CAUSE REMARKS THE UNIT EVAPORATOR COMPRESSOR PARTIAL Freezer Low flowing sound of A little higher than • Refrigerant level is low due LEAKAGE compartment and Refrigerant is heard ambient to a leak.
  • Page 68 12-6-2 SEALED SYSTEM DIAGNOSIS “Not Cooling” Complaint All components operating, No airflow problems, Not frosted up as a defrost problem problem has been isolated to sealed system area Frost Partial None Pattern? Equalization Equalization Test Test Very Fast Very Slow Very Slow Very Fast Fast...

  • Page 69: Icemaker Opearting And Trouble Shooting Method

    13. ICEMAKER OPERATING METHOD AND TROUBLE SHOOTING 13-1 Icemaker’s Basic Operating Method Power On Power On Start Position • Adjusts Ice Tray to Start Position with power on. • Adjusts Ice Tray to Start Position with power on. • Waits until water becomes ice. Icemaking For cold air circulation, Ice tray will be Mode...
  • Page 70 13-2 ICE MAKER FUNCTIONS 13-2-1 Icemaking Mode 1. Icemaking Mode begins right after the ice tray fills with water. 2. Icemaker waits until water becomes ice in the ice tray. Ice-detecting sensor checks if the ice bin is full every 2min. 13-2-2 Harvest Mode At least in 110min, since icemaker begun icemaking mode, Icemaker starts to twist the ice tray to drop ices into the Ice bin.
  • Page 71 13-3-2 Icemaker not making ice or not making enough ice (Icemaker Unit & Ice-detecting sensor Diagnosis) Icemaker Unit and Ice-detecting sensor Diagnosis The icemaker unit and Ice-detecting sensor is programmed to be diagnosed. Follow the procedure step by step to check to see if icemaker and Ice-detecting sensor is working normally. Icemaker Unit Ice-detecting sensor Fill Key...
  • Page 72 STEP (Ice-detecting sensor Diagnosis) 2. Close the left door 1. Remove Ice bin from compartment 3. Wait for 3min. (Door switch pushed) 4. Freezer door stays open 5. Push the refrigerator button & lock button at the same time. is shown on the display after the procedure above, Ice-detecting sensor is normal. FULL is shown on the display after the procedure above, Ice-detecting sensor is abnormal.

  • Page 73: Description Of Function & Circuit Of Micom

    14. DESCRIPTION OF FUNCTION & CIRCUIT OF MICOM 14-1 FUNCTION 14-1-1 Function 1. When the appliance is plugged in, it is set to 37°F for Refrigerator and 0°F for freezer. You can adjust the Refrigerator and the Freezer control temperature by pressing the ADJUST button. 2.
  • Page 74 14-1-4 Filter condition display function 1. There is a replacement indicator light for the filter In initial Power On Blinking Classification cartridge on the dispenser. / Filter RESET 2. Water filter needs replacement once six months or of using water filter. Filter Status 3.
  • Page 75 14-1-7 CONTROL OF FREEZER FAN MOTOR 1. Freezer fan motor has high and standard speeds. 2. High speed is used at power-up, for Ultra Ice, and when refrigerator is overloaded. Standard speeds is used for general purposes. 3. To improve cooling speed, the RPM of the freezer fan motor change from normal speed to high. 4.
  • Page 76 14-1-13 Defrosting (removing frost) 1. Defrosting starts each time the COMPRESSOR running time Betwee 7~50 hours. 2. For initial power on or for restoring power, defrosting starts when the compressor running time reaches 4 hours. 3. Defrosting stops if the sensor temperature reaches 46.4°F(8°C) or more. If the sensor doesn’t reach 46.4°F(8°C) in 1 hours, the defrost mode is malfunctioning.
  • Page 77 15. EXPLODED VIEW & REPLACEMENT PARTS LIST CASE PARTS CAUTION: Use the part number to order part, not the position number. 603C 624E 503E 603E 626A 624G 503D 624C 207B 503G 402A 624A 409D 158A 271B 103B 103A 501F 207A 120A 402A 145A...
  • Page 78 FREEZER PARTS CAUTION: Use the part number to order part, not the position number. 133B 133B 145C 131A 136C 136B 133A 133B 132P 145F 136A 237C...
  • Page 79 REFRIGERATOR PARTS 141A CAUTION: Use the part number to order part, not the position number. 141A 141B 141B 141C 141C 141A 140A 142D 142B 142A 141B 141C 141D 154A 161B 151C 151A 151B 161C 146E 161A 162B 145D 162A...

  • Page 80: Door Parts

    DOOR PARTS CAUTION: Use the part number to order part, not the position number. 241K 241A 231B 233B 241C 233A 231A 241B 212G 235A 241K 241D 241G 241D 312B 241E 243D 243C 262C 619B 603B 243A 615A 244A 244A 243B 603C 262E 262C...
  • Page 81 DISPENSER PARTS CAUTION: Use the part number to order part, not the position number. 276A 276G 276F 275A 405A 276B 279A 279I 278D 279H 279J 402C 278C 501D 279B 279D 500C 281B 279E 281A 501A 279C...
  • Page 82 VALVE & WATER TUBE PARTS CAUTION: Use the part number to order part, not the position number. 617A 625A 616G 616D 616G 623B 616J 623B 616J 616F 627B 603C 616D 627A 619A 619E 603B...
  • Page 83 ICE MAKER & ICE BIN PARTS LFX28978** CAUTION: Use the part number to order part, not the position number. 630J 630J 612A 630F 630B 608A 630C 600A 611A 630A 630H 630D 606A 630E 630Q 630G...
  • Page 84 MFL62188034 FEB. 2010 Printed in Korea...

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