LG LRSPC2031BS Service Manual
  1. Manuals
  2. Brands
  3. LG Manuals
  4. Refrigerator
  5. LRSPC2031BS
  6. Service manual
LG LRSPC2031BS Service Manual

LG LRSPC2031BS Service Manual

Lg refrigerator service manual
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
http://biz.lgservice.com
REFRIGERATOR
SERVICE MANUAL
CAUTION
PLEASE READ CAREFULLY THE SAFETY PRECAUTIONS OF THIS BOOK
BEFORE CHECKING OR OPERATING THE REFRIGERATOR.
Ref. No.
GR-L207ERA
GR-L247ERA
MODEL: LRSPC2031BS
COLOR: EMBO BISQUE
LRSPC2331BS

Advertisement

Table of Contents
loading

Related Manuals for LG LRSPC2031BS

Summary of Contents for LG LRSPC2031BS

  • Page 1 REFRIGERATOR SERVICE MANUAL CAUTION PLEASE READ CAREFULLY THE SAFETY PRECAUTIONS OF THIS BOOK BEFORE CHECKING OR OPERATING THE REFRIGERATOR. Ref. No. GR-L207ERA GR-L247ERA MODEL: LRSPC2031BS COLOR: EMBO BISQUE LRSPC2331BS...

  • Page 2: Table Of Contents

    CONTENTS WARNINGS AND PRECAUTIONS FOR SAFETY ........................ 3 SPECIFICATIONS................................... 4 PARTS IDENTIFICATION ..............................12 HOW TO INSTALL THE REFRIGERATOR .......................... 18 HOW TO ADJUST DOOR HEIGHT OF THE REFRIGERATOR ..................18 HOW TO INSTALL WATER PIPE............................19 HOW TO CONTROL THE AMOUNT OF WATER SUPPLIED TO THE ICEMAKER ............23 MICOM FUNCTION ................................

  • Page 3: Warnings And Precautions For Safety

    WARNINGS AND PRECAUTIONS FOR SAFETY Please observe the following safety precautions in order to 8. Do not fray, damage, machine, heavily bend, pull out, use safely and correctly the refrigerator and to prevent or twist the power cord. accident and danger during repair. 9.

  • Page 4: Specifications

    SPECIFICATIONS 1. Ref No. : GR-P247 ITEMS SPECIFICATIONS ITEMS SPECIFICATIONS DIMENSIONS (mm) 890(W) 840(D) 1750(H) FIRST DEFROST 4 - 5 Hours NET WEIGHT (kg) DEFROST CYCLE 13 - 15 Hours COOLING SYSTEM Fan Cooling DEFROSTING DEVICE Heater, Sheath TEMPERATURE CONTROL Micom Control Heater, L - Cord DEFROSTING SYSTEM...
  • Page 5 SPECIFICATIONS 2. Ref No. : GR-P207 ITEMS SPECIFICATIONS ITEMS SPECIFICATIONS DIMENSIONS (mm) 890(W) 755(D) 1750(H) FIRST DEFROST 4 - 5 Hours NET WEIGHT (kg) DEFROST CYCLE 13 - 15 Hours COOLING SYSTEM Fan Cooling DEFROSTING DEVICE Heater, Sheath TEMPERATURE CONTROL Micom Control Heater, L - Cord DEFROSTING SYSTEM...
  • Page 6 SPECIFICATIONS 3. Ref No. : GR-L247 ITEMS SPECIFICATIONS ITEMS SPECIFICATIONS DIMENSIONS (mm) 890(W) 840(D) 1750(H) CAPILLARY TUBE MOLECULAR SIEVE XH-7 NET WEIGHT (kg) FIRST DEFROST 4 - 5 Hours COOLING SYSTEM Fan Cooling DEFROST CYCLE 13 - 15 Hours TEMPERATURE CONTROL Micom Control DEFROSTING DEVICE Heater, Sheath...
  • Page 7 SPECIFICATIONS 4. Ref No. : GR-L207 ITEMS SPECIFICATIONS ITEMS SPECIFICATIONS DIMENSIONS (mm) 890(W) 755(D) 1750(H) CAPILLARY TUBE MOLECULAR SIEVE XH-7 NET WEIGHT (kg) FIRST DEFROST 4 - 5 Hours COOLING SYSTEM Fan Cooling DEFROST CYCLE 13 - 15 Hours TEMPERATURE CONTROL Micom Control DEFROSTING DEVICE Heater, Sheath...
  • Page 8 SPECIFICATIONS 1. Ref No. : GR-C247 ITEMS SPECIFICATIONS ITEMS SPECIFICATIONS DIMENSIONS (mm) 890(W) 840(D) 1750(H) FIRST DEFROST 4 - 5 Hours NET WEIGHT (kg) DEFROST CYCLE 13 - 15 Hours COOLING SYSTEM Fan Cooling DEFROSTING DEVICE Heater, Sheath TEMPERATURE CONTROL Micom Control Heater, L - Cord DEFROSTING SYSTEM...
  • Page 9 SPECIFICATIONS 2. Ref No. : GR-C207 ITEMS SPECIFICATIONS ITEMS SPECIFICATIONS DIMENSIONS (mm) 890(W) 755(D) 1750(H) FIRST DEFROST 4 - 5 Hours NET WEIGHT (kg) DEFROST CYCLE 13 - 15 Hours COOLING SYSTEM Fan Cooling DEFROSTING DEVICE Heater, Sheath TEMPERATURE CONTROL Micom Control Heater, L - Cord DEFROSTING SYSTEM...
  • Page 10 SPECIFICATIONS 3. Ref No. : GR-B247 ITEMS SPECIFICATIONS ITEMS SPECIFICATIONS DIMENSIONS (mm) 890(W) 840(D) 1750(H) CAPILLARY TUBE MOLECULAR SIEVE XH-7 NET WEIGHT (kg) FIRST DEFROST 4 - 5 Hours COOLING SYSTEM Fan Cooling DEFROST CYCLE 13 - 15 Hours TEMPERATURE CONTROL Micom Control DEFROSTING DEVICE Heater, Sheath...
  • Page 11 SPECIFICATIONS 4. Ref No. : GR-B207 / GR-B197 ITEMS SPECIFICATIONS ITEMS SPECIFICATIONS DIMENSIONS (mm) B207 890(W) 755(D) 1750(H) CAPILLARY TUBE MOLECULAR SIEVE XH-7 B197 890(W) 725(D) 1750(H) FIRST DEFROST 4 - 5 Hours NET WEIGHT (kg) DEFROST CYCLE 13 - 15 Hours COOLING SYSTEM Fan Cooling DEFROSTING DEVICE...

  • Page 12: Parts Identification

    PARTS IDENTIFICATION 1. Ref No. : GR-P247ER, GR-P207ER Cover Hinge Cover PWB Frame Display Water Tube Dispenser Lamp Ice & Water Dispenser Button Home Bar Freezer Refrigerator Compartment Compartment Milk product corner Door rack Lamp Shelf Automatic Door rack ice maker Wine holder (optional) Lamp Egg Box...
  • Page 13 PARTS IDENTIFICATION 2. Ref No. : GR-P247EQ, GR-P207EQ Cover Hinge Cover PWB Frame Display Water Tube Dispenser Lamp Ice & Water Dispenser Button Home Bar Freezer Refrigerator Compartment Compartment Milk product corner Door rack Lamp Shelf Automatic Door rack ice maker Wine holder (optional) Lamp Egg Box...
  • Page 14 PARTS IDENTIFICATION 3. Ref No. : GR-L247ER, GR-L207ER Cover Hinge Cover PWB Frame Display Water Tube Dispenser Lamp Ice & Water Dispenser Button Freezer Refrigerator Compartment Compartment Milk product corner Door rack Lamp Shelf Automatic Door rack ice maker Wine holder (optional) Lamp Egg Box Snack drawer...
  • Page 15 PARTS IDENTIFICATION 4. Ref No. : GR-L247EQ, GR-L207EQ Cover Hinge Cover PWB Frame Display Water Tube Dispenser Lamp Ice & Water Dispenser Button Freezer Refrigerator Compartment Compartment Milk product corner Door rack Lamp Shelf Automatic Door rack ice maker Wine holder (optional) Lamp Egg Box Snack drawer...
  • Page 16 PARTS IDENTIFICATION 1. Ref No. : GR-C247EC, GR-C207EC Cover Hinge Cover PWB Home Bar Freezer Refrigerator Compartment Compartment Milk product corner Door rack Lamp Shelf Door rack Wine holder (optional) Lamp Egg Box Snack drawer Shelf Refreshment center (optional) Shelf Drawer or Shelf (optional)
  • Page 17 PARTS IDENTIFICATION 3. Ref No. : GR-B247, GR-B207, GR-B197 Cover Hinge Cover PWB Freezer Refrigerator Compartment Compartment Milk product corner Door rack Lamp Shelf Door rack Wine holder (optional) Lamp Egg Box Snack drawer Shelf Shelf Drawer or Shelf (optional) Door rack Drawer Vegetable drawer...

  • Page 18: How To Install The Refrigerator

    HOW TO INSTALL REFRIGERATOR 1. How to Adjust Door Height of Refrigerator Make the refrigerator level first. (If the refrigerator is not installed on the flat floor, the height of freezer and refrigerator door may not be the same.) 1. If the height of freezer door is lower than that of 2.

  • Page 19: How To Install Water Pipe

    HOW TO INSTALL REFRIGERATOR 2. How to Install Water Pipe 2-1. When connecting directly to the water tap. Please confirm the following installation parts. Before Installation 1. The icemaker requires the water pressure of 1.5 - 8.5kgf/cm . (It is acceptable if city water fills a cup of 180cc with water for 3 seconds) 2.
  • Page 20 HOW TO INSTALL REFRIGERATOR 1. Connection of Pipe Connector A and B. Caution : • Feed pipe should be connected to cold water line. If it is connected to hot water line, trouble 1) Turn off main valve of water pipe. may occur.
  • Page 21 HOW TO INSTALL REFRIGERATOR 3. When customer uses bottled water. *If customer wants to use bottled water, extra pump should be installed as shown below. 1. The pump system should not be on the floor (it may cause noise and vibration). Securely fasten the inlet and outlet nuts of pump.
  • Page 22 HOW TO INSTALL REFRIGERATOR Install Water Filter (Applicable to some models only) Before Installing water filter Control box 1. Before installing the filter, take out the top shelf of the refrigerator after tilting it to the direction ( ) and lifting it to the direction ( ) and move it to the lower part.

  • Page 23: How To Control The Amount Of Water Supplied To The Icemaker

    HOW TO INSTALL REFRIGERATOR 3. How to Control the Amount of Water Supplied to Icemaker. 3-1. Confirm the amount of water supplied to the icemaker. 1. Pull out the ice bank in the upper part of the freezer compartment. Caution : • Do not put hands or tools into the chute to confirm the operation of geared motor.
  • Page 24 HOW TO INSTALL REFRIGERATOR 3-2. Control the amount of water supplied to the Caution : When adjusting the amount of water supplied, adjust step by step. Otherwise the water may icemaker. spill over. Caution : • Please unplug the power cord from the wall outlet and wait for more than three minutes before disconnecting PWB cover as 310V is applied in the control panel.

  • Page 25: Micom Function

    MICOM FUNCTION 1. Monitor Panel 1-1. GR-P247, GR-P207, GR-L247, GR-L207 1-2. GR-C247, GR-C207, GR-B247, GR-B207, GR-B197 Function Monitor Temp Temp SELECT Temp Temp Freezer compartment Refrigerator compartment Dispenser selection button temperature control Button temperature control Button 2. Description of Function 2-1.
  • Page 26 MICOM FUNCTION 2-2. Control of Variable Speed Fan in the Refrigerator Compartment 1. Fan motor in the freezer compartment shall change from standard to high speed rpm in order to increase cooling speed and load corresponding speed. 2. High speed rpm is only used for the initial power application and load corresponding operation. But standard rpm is used in the general working conditions.
  • Page 27 MICOM FUNCTION 2-7. Electric Equipment Sequential Operation Electric equipment such as compressor, defrost heater, cooling fan, step motor damper, etc. operates in the following sequence when power is initially applied and test is completed in order to reduce noise and parts damage. Function Operation Sequence Remarks...
  • Page 28 MICOM FUNCTION 2-8. Function of Trouble Diagnosis 1. Function of trouble diagnosis is to make the repair service easy when the refrigerator is out of order during service. 2. The function control button does not work but the recognition sound is heard when the refrigerator is out of order. 3.
  • Page 29 MICOM FUNCTION Note 1) When open air temperature detecting sensor, refrigerator sensor 2, ice maker unit, ice making sensor are abnormal, it is not indicated in the trouble code. But it is indicated while checking LED (press freezer and refrigerator temperature control buttons for more than 1 second at the same time). Normal : LED On.
  • Page 30 MICOM FUNCTION * LED check function- When freezer and refrigerator temperature control buttons are pressed for more than 1 second at the same time, all LEDS on the display are on. And it returns to the normal conditions when the buttons are released. * Check of freezer fan rpm variation- Freezer fan speed changes from high speed to standard speed and vice versa for 30 seconds whenever freezer and refrigerator temperature control buttons are pressed at the same time for more than 1 second when freezer fan is in operation and returns to the previous rpm.

  • Page 31: Micom Circuit Description

    MICOM CIRCUIT DESCRIPTION 1. Description of PWB Circuit 1-1. Power Circuit 1. GR-P247, GR-P207, GR-L247, GR-L207 Power circuit is composed of switching mode power supply (SMPS) electric parts. SMPS is composed of rectifying part (D1~D4, CE1) which converts AC to DC voltage, switching part (IC2) which switches this converted DC voltage, trans which transmits primary energy to secondary energy, secondary power source which transmits power to MICOM and IC, and feed back part (IC3, ZD1) which feeds back voltage to primary trans in order to maintain constant secondary voltage.
  • Page 32 MICOM CIRCUIT DESCRIPTION 1-4. Load/Dispenser Operation, Buzzer Driving, Door Opening Detecting Circuit 1. LOAD DRIVING CIRCUIT * Freezer fan motor shall stop when freezer or refrigerator door is open. Freezer fan motor shall immediately operate when freezer or refrigerator door is closed. * Door switches A, B, C, D, E, F of freezer and refrigerator are connected to the door opening detecting circuit in Micom.
  • Page 33 MICOM CIRCUIT DESCRIPTION 2) GR-C247, GR-C207, GR-B247, GR-B207, GR-B197 * Freezer fan motor shall operate when freezer, refrigerator, or home bar door is open. * Door switches A, B, C, D of freezer and refrigerator are connected to door opening detecting circuit in Micom. * Home bar door switch E, F is parallelly connected to the refrigerator switch C, D.
  • Page 34 MICOM CIRCUIT DESCRIPTION 2. Dispenser Operation Circuits GR-P247, GR-P207, GR-L247, GR-L207 POWER 1) LOAD DRIVING CONDITION CHECK WATER VALVE GEARED SOLENOID SOLENOID HOME BAR Refrigerator LOAD TYPE MOTOR CUBE PILOT DISPENSER HEATER Compartment Lamp WATER Measuring Points No.15(IC6) No.10(IC7) No.11(IC7) No.12(IC7) No.16(IC7) No.14(IC7)
  • Page 35 MICOM CIRCUIT DESCRIPTION 3. Buzzer Driving Circuits CONDITIONS Bell sounds when button on Beep sounds when warning dosplay is pressed. door opening. MEASURING POINTS 0.05 s 0.2 s 0.1 s 0.4 s 0.5 s 0.5 s IC1 (No. 50 Pin) IC1 (No.51 Pin) 2.63 kz (DING) 2.21 kz (DONG)
  • Page 36 MICOM CIRCUIT DESCRIPTION 1-5. Temperature Detecting Circuit, Duct Door Heat Working Circuit The above circuit is fixed in the freezer compartment sensor, refrigerator compartment sensor, ice making sensor, and defrost sensor. The condition of short or open of each temperature sensor is as follows. SENSOR CHECK POINT NORMAL(-30 °C ~ 50 °C)
  • Page 37 MICOM CIRCUIT DESCRIPTION 1-6. Switch Input Circuits The following circuit is an input circuit to detect the test switch for refrigerator detection and to detect the signal of electronic single motor damper reed switch. TEST S/W 1-7. Option Designation Circuit (Model Classifying Function) The above circuit is to designate model by option and inform it to MICOM.
  • Page 38 MICOM CIRCUIT DESCRIPTION Description) MICOM Pin No. 41, 42, and 43 terminals send signals of which wave form are shown on the right in 3.33 msec cycles. These signals pass through input terminals (No. 3, 6, and 8) of motor driving IC6 (TA7774AP) and are sent to the output terminal (No.
  • Page 39 MICOM CIRCUIT DESCRIPTION u Refrigerator compartment temperature compensation table is as shown below. Amended Resi s tance 470 Ω 2 kΩ 3.3 kΩ 5.6 kΩ 8.2 kΩ 10 kΩ 12 kΩ 18 kΩ 33 kΩ 56 kΩ 180 kΩ Present Resistance 0.5 °C 1 °C 1.5 °C...
  • Page 40 MICOM CIRCUIT DESCRIPTION 2. Refrigerator Weak Cooling and Over Cooling Compensation Circuit Temperature Compensation by Cutting JCR1 +1 °C +2 °C JCR2 +1 °C JCR3 -1 °C -2 °C JCR4 -1 °C WEAK COOLING OVER COOLING REFRIGERATOR COMPARTMENT COMPENSATION COMPENSATION REMARKS TEMPERATURE COMPENSATION JCR3...
  • Page 41 MICOM CIRCUIT DESCRIPTION 1-10. Key Button Input and Display Lighting Circuit 1. GR-P247, GR-P207, GR-L247, GR-L207 This circuit is to judge the work of function control button on the operation panel and to light each function indication led (LED module). It is driven by SCAN method. Freezer Refrigerator Crushed...

  • Page 42: Sensor Resistance Characteristic Tabie

    MICOM CIRCUIT DESCRIPTION 2. Sensor Resistance Characteristic Table Refrigerator Sensor 1 and 2, Defrost Sensor and Measured Temperature (°C) Freezer Sensor Open Air Sensor -20 °C 22.3 kΩ 77 kΩ -15 °C 16.9 kΩ 60 kΩ -15 °C 13.0 kΩ 47.3 kΩ...

  • Page 43: Pwb Parts Drawing And List

    MICOM CIRCUIT DESCRIPTION 3. PWB Parts Drawings and List 3-1. PWB Assembly Main Parts Drawings 1 GR-P247, GR-P207, GR-L247, GR-L207 - 43 -...
  • Page 44 MICOM CIRCUIT DESCRIPTION 2 GR-C247, GR-C207, GR-B247, GR-B207, GR-B197 FUSE 250V/15A (OPTION) TRANS D3 D1 CC12 CC11 JCR1 JCR2 JCR3 RCF1 JCR4 RCR1 CC13 CC10 STICKER CON5 - 44 -...
  • Page 45 MICOM CIRCUIT DESCRIPTION 3-2. Parts List 1. GR-P247, GR-P207 / GR-L247, GR-L207 WORK WORK - 45 -...
  • Page 46 MICOM CIRCUIT DESCRIPTION 1. GR-P247, GR-P207, GR-L247, GR-L207 WORK - 46 -...
  • Page 47 MICOM CIRCUIT DESCRIPTION 2. GR-C247, GR-C207, GR-B247, GR-B207, GR-B197 JCR1 JCR2 JCR3 JCR4 - 47 -...

  • Page 48: Pwb Circuit Drawing

    MICOM CIRCUIT DESCRIPTION 4. PWB circuit drawing- PWB circuit drawing may change depending on the conditions. 1 GR-P247, GR-P207, GR-L247, GR-L207 - 48 -...
  • Page 49 MICOM CIRCUIT DESCRIPTION Freezer Refrigerator Crushed Temp Temp /Water Control Control /Cube - 49 -...
  • Page 50 MICOM CIRCUIT DESCRIPTION 2. GR-C247, GR-C207, GR-B247, GR-B207, GR-B197 Refrigerator Compartment Temperature Compensation Freezer Compartment Temperature Compensation - 50 -...
  • Page 51 MICOM CIRCUIT DESCRIPTION Freezer Refrigerator Temp Temp Control Control - 51 -...
  • Page 52 ICE MAKER AND DISPENSER WORKING PRINCIPLES AND REPAIR 1. Working Principles 1-1. Ice Maker Working Principles Power Input Initial Control • Level Ice Maker Cube Mould for “Initial Control” after power is input. Ice Making Control • Wait until the water in the cube mould is frozen after ice maker starts operation.

  • Page 53: Ice Maker And Dispenser Working Principles And Repair

    ICE MAKER AND DISPENSER WORKING PRINCIPLES AND REPAIR 2. Function of Ice Maker 2-1. Initial Control Function 1. When power is initially applied or reapplied after power cut, it detects level of ice maker cube mould after completion of MICOM initialization. The detecting lever moves up and down. 2.
  • Page 54 ICE MAKER AND DISPENSER WORKING PRINCIPLES AND REPAIR 2-4. Ice Ejection Control Function 1. This is to eject ice from ice maker cube mould after ice making is completed. 2. If Hall IC signal is on within 3.6 seconds after ice ejection motor rotates in normal direction, it does not proceed ice ejection but waits.
  • Page 55 ICE MAKER AND DISPENSER WORKING PRINCIPLES AND REPAIR 2-5 Test Function 1. It is to force the operation during operation test, service, and cleaning. The test switch is mounted under the automatic ice maker. The test function starts when the test switch is pressed for more than 0.5 second. 2.

  • Page 56: Ice Maker Troubleshooting

    ICE MAKER AND DISPENSER WORKING PRINCIPLES AND REPAIR 3. Ice Maker Troubleshooting * Troubleshooting: it is possible to confirm by pressing freezer and refrigerator temperature control buttons for more than 1 second. (ice maker is normal if all leds are on): refer to trouble diagnposis function in MICOM function 2-8 (page 18) Is DC Power (5V and 12V) Failed DC Power...

  • Page 57: Ice Maker Circuits

    ICE MAKER AND DISPENSER WORKING PRINCIPLES AND REPAIR 4. Ice Maker Circuits FOWARD REVERSE ICE MAKER STOP SWITCH The above ice maker circuits are applied to GR-P247, GR-P207 and GR-L247, GR-L207 and composed of ice maker unit in the freezer and ice maker driving part of main PWB. Water is supplied to the ice maker cube mould through the solenoid relay for ice valve of solenoid valve in the machine room by opening valve for the set time.

  • Page 58: Circuit

    CIRCUIT GR-B247, GR-B207, GR-C247, GR-C207, GR-B197 - 58 -...
  • Page 59 CIRCUIT GR-P247, GR-P207, GR-L247, GR-L207 • HOME BAR PART(H/BAR-HEATER, DOOR S/W) SOLENOID WATER VALVE, CAPACITOR PART, THE PLUG TYPE, COMPRESSOR EARTH PART ON CIRCUIT DIAGRAM ARE SUBJECT TO CHANGE IN DIFFERENT LOCALITES AND ACCORDANCE WITH MODEL TYPE. - 59 -...

  • Page 60: Trouble Diagnosis

    TROUBLE DIAGNOSIS 1. TROUBLE SHOOTING CLAIMS. CAUSES AND CHECK POINTS. HOW TO CHECK * Measuring instrument : 1) No power on outlet. 1. Faulty start Multi tester 2) No power on cord. Bad connection between adapter and outlet. (faulty adapter) Check the voltage.
  • Page 61 TROUBLE DIAGNOSIS CLAIMS. CAUSES AND CHECK POINTS. HOW TO CHECK 2. No cooling. Check the clogged 2) Refrigeration system is clogged. evaporator by heating (as Moisture Residual moisture Air Blowing. Not performed. soon as the cracking sound clogged. in the evaporator. Too short.
  • Page 62 TROUBLE DIAGNOSIS CLAIMS. CAUSES AND CHECK POINTS. HOW TO CHECK 3. Refrigeration 1) Refrigerant Partly leaked. Weld joint leak. is weak. Parts leak. 2) Poor defrosting capacity. Check visually. Drain path (pipe) clogged. Inject P/U into drain hose. Inject through the hole.
  • Page 63 TROUBLE DIAGNOSIS CLAIMS. CAUSES AND CHECK POINTS. HOW TO CHECK 3. Refrigeration Residual Weak heat from heater. Sheath Heater - rated. is weak. frost. Heater plate - rated. Heater cord-L - rated. Bad heater assembly. Heater plate No contact to drain. Loosened stopper cord.
  • Page 64 TROUBLE DIAGNOSIS CLAIMS. CAUSES AND CHECK POINTS. HOW TO CHECK 3. Refrigeration 4) No cooling air circulation. is weak. Faulty fan motor. Fan is Fan shroud contact. - Clearance. constrained. Damping evaporator contact. Accumulated residual frost. Small cooling air Insufficient Fan overload.
  • Page 65 TROUBLE DIAGNOSIS CLAIMS. CAUSES AND CHECK POINTS. HOW TO CHECK 4. Warm 1) Colgged cooling path. refrigerator P/U liquid leak. compartment Foreign materials. –– P/U dump liquid. temperature. 2) Food storate. Store hot food. Store too much at once. Door open. Packages block air flow.
  • Page 66 TROUBLE DIAGNOSIS CLAIMS. CAUSES AND CHECK POINTS. HOW TO CHECK 6. Dew and 4) Dew on door. ice formation. Dew on the duct door. - Duct door heater is cut. Dew on the dispense Recess Heater is cut. recess. Duct door is open. / Foreign material clogging. Dew on the door surface.
  • Page 67 TROUBLE DIAGNOSIS CLAIMS. CAUSES AND CHECK POINTS. HOW TO CHECK 7. Sounds 1) Compressor compartment operating sounds. Transformer sound. Its own fault. –– Core gap. Bad connection. –– Correct screw connection. Drip tray vibration sound. Bad assembly. Distortion. Foreign materials inside. Back cover machine sound.
  • Page 68 TROUBLE DIAGNOSIS CLAIMS. CAUSES AND CHECK POINTS. HOW TO CHECK 8. Faulty lamp 1) Lamp problem. Filament blows out. (freezer and Glass is broken. refrigerator 2) Bad lamp assembly. Not inserted. compartment). Loosened by vibration. 3) Bad lamp socket. Disconnection. Bad soldering.
  • Page 69 TROUBLE DIAGNOSIS CLAIMS. CAUSES AND CHECK POINTS. HOW TO CHECK 10. Structure, 1) Door foam. appearance Sag. Weak torque of Bolt is loosened during and others. hinge connection. transportaion. Not tightly fastened. Screw worn out . Weak gasket Adhesion surface. adhesion.

  • Page 70: Faults

    TROUBLE DIAGNOSIS - 70 -...
  • Page 71 - 71 -...
  • Page 72 - 72 -...
  • Page 73 TROUBLE DIAGNOSIS - 73 -...
  • Page 74 - 74 -...
  • Page 75 TROUBLE DIAGNOSIS - 75 -...
  • Page 76 - 76 -...
  • Page 77 TROUBLE DIAGNOSIS - 77 -...
  • Page 78 - 78 -...
  • Page 79 TROUBLE DIAGNOSIS - 79 -...
  • Page 80 - 80 -...
  • Page 81 TROUBLE DIAGNOSIS - 81 -...
  • Page 82 TROUBLE DIAGNOSIS - 82 -...
  • Page 83 TROUBLE DIAGNOSIS - 83 -...
  • Page 84 TROUBLE DIAGNOSIS - 84 -...
  • Page 85 TROUBLE DIAGNOSIS - 85 -...
  • Page 86 TROUBLE DIAGNOSIS - 86 -...

  • Page 87: Cooling Cycle Heavy Repair

    TROUBLE DIAGNOSIS 3. Cooling Cycle Heavy Repair 3-1. The Heavy Repair Standards for Refrigerator with R134a Refrigerant Items Unit Standards Purposes Remarks Pipe and piping Min. Pipe:within 1 hour. To protect The opening time should be reduced to a system opening time. Comp:within Moisture half of the standards during rain and...
  • Page 88 TROUBLE DIAGNOSIS 3-2. Summary Of Heavy Repair Process Contents Tools Trouble diagnosis Remove refrigerant - Cut charging pipe ends and discharge refrigerant from Filter, side cutters Residuals drier and compressor. - Use R134a oil and refrigerant for compressor and drier Pipe Cutter, Gas welder, N - Confirm N sealing and packing conditions before use.
  • Page 89 TROUBLE DIAGNOSIS 3-3. Precautions During Heavy Repair Items Precautions 1. Use of tools. 1) Use special parts and tools for R134a. 2. Removal of retained 1) Remove retained refrigerant more than 5 minutes after turning off a refrigerator. refrigerant. (If not, oil will leak inside.) 2) Remove retained refrigerant by cutting first high pressure side (drier part) with a nipper and then cut low pressure side.
  • Page 90 TROUBLE DIAGNOSIS 3-4. Practical Work For Heavy Repair Items Precautions 1. Removal of residual Evaporator Low pressure side refrigerant. KEYPOINTING Observe the sequence for Compressor removal of refrigerant. Drier Suction (If not, compressor oil may leak.) High pressure side Release Condenser Refrigent Intake...
  • Page 91 TROUBLE DIAGNOSIS Items Precautions 4.Vacuum degassing. Evaporator Suction pipe Compressor Drier Condenser pressure High Blue pressure Yellow Vaccum Pump KEYPOINTING - If power is applied during vacuum degassing, vacuum degassing shall be more effective. Pipe Connection - Operate compressor Connect a red hose to the high pressure side and a blue hose to the while charging refrigerant.
  • Page 92 TROUBLE DIAGNOSIS Items Precautions Evaporator Compressor Drier Condenser Bombe 4) Refrigerant Charging Charge refrigerant while operating a compressor as shown above. 5) Pinch a charging pipe with a pinch-off plier after completion of charging. 6) Braze the end of a pinched charging pipe with copper brazer and take a gas leakage test on the welded parts.
  • Page 93 TROUBLE DIAGNOSIS 3-6. Brazing Reference Drawings PIPE ASSY, HOT LINE PIPE ASSY, HOT LINE (Freezer) (Refrigerator) Copper Brazer Copper Brazer CAPI - TUBE DRIER ASSY Copper Silver Brazer Brazer PIPE ASSY, JOINT PIPE ASSY, SUCTION Copper Brazer PIPE ASSY, JOINT CONDENSER ASSY, WIRE Copper Brazer Silver Brazer...

  • Page 94: How To Deal With Claims

    TROUBLE DIAGNOSIS 4. HOW TO DEAL WITH CLAIMS 4-1. Sound Problems Checks and Measures "Whizz" sounds Explain general principles of sounds. • All refrigerator when functioning properly have normal operating sound. The compressor and fan produce sounds. There is a fan in the freezer compartment which blows cool air to freezer and refrigerator compartments.
  • Page 95 TROUBLE DIAGNOSIS Problems Checks and Measures Sounds of water flowing Explain the flow of refrigerant. • When the refrigerator stops, the water flowing sound happens. This sound happens when the liquid or vapor refrigerant flows from the evaporator to compressor. "Click"...
  • Page 96 TROUBLE DIAGNOSIS 4-2. Measures for Symptoms on Temperature Problems Checks and Measures Refrigeration is weak. Check temperature set in the temperature control knob. • Refrigerator is generally delivered with the button set at “normal use” (MID). But customer can adjust the temperature set depending on their habit and taste. If you feel the refrigeration is weak, then set the temperature control button at “strong”...
  • Page 97 TROUBLE DIAGNOSIS 4-3. Odor and Frost Problems Checks and Measures Odor in the refrigerator compartment. Explain the basic principles of food odor. • Each food has its own peculiar odor. Therefore it is impossible to prevent or avoid food odor completely when food is stored in the completely sealed refrigerator compartment.
  • Page 98 TROUBLE DIAGNOSIS 4-5. Others Problems Checks and Measures The refrigerator case is hot. Explain the principles of radiator. • The radiator pipes are installed in the refrigerator case and partition plate between the refrigerator and the freezer compartment in order to prevent condensation formation.

  • Page 99: How To Disassemble And Assemble

    HOW TO DISASSEMBLE AND ASSEMBLE 1. DOOR (3) Disconnect upper hinge from a hinge supporter by grasping the front part of upper hinge and lifting up (Hinge Assy, U) in arrow direction A and pull forward 1) Remove lower cover and then disconnect water in arrow B direction.

  • Page 100: Handle

    HOW TO DISASSEMBLE AND ASSEMBLE 2. HANDLE 4) Disassembly of a grille fan (L) : Hold upper part of a grille fan(L) and pull forward carefully. 1) Put blade screwdriver into a groove on the side of a 5) Loosen two screws. Deco handle and lift up a little bit in arrow direction 6) Disassembly of shroud.

  • Page 101: Dispenser

    HOW TO DISASSEMBLE AND ASSEMBLE 5. DISPENSER 4) Loosen four screws with a phillips screwdriver and pull a funnel Assy to disconnect. 1) Disconnect button assembly by pulling down until it stops and then pulling forward. Funnel Assy Funnel Assy Button 5) Duct cap Assy is disconnected if hold lever connecting screw is loosened with a phillips screwdriver.
  • Page 102 HOW TO DISASSEMBLE AND ASSEMBLE 7) Dispenser Related Parts FRAME ASSY, DISPLAY COVER, DISPENSER PWB(PCB) ASSY, DISPLAY FUNNEL ASSY SWITCH, MICRO FRAME, FUNNEL 10 LEVER(SWITCH) 11 FUNNEL 12 RUBBER, FUNNEL 13 SWITCH, ROCKER 14 SOLENOID ASSY 15 SPRING 16 HOLDER, LEVER 17 CAP, DUCT 19 LEVER, DISPENSER 20 RUBBER, CAP...

  • Page 103: Water Tank And Water Line

    HOW TO DISASSEMBLE AND ASSEMBLE 6. WATER TANK AND WATER LINE 7-2. Home Bar parts disassembly and assembly 1) Disconnect H/Bar Door Assy u The water tank at back and lower part of a refrigerator is fixed by one screw and has a capacity containing 7 2) Loosen two screws attached on the refrigerator glasses (180cc per glass) of cold water.

  • Page 104: Exploded View

    EXPLODED VIEW FREEZER DOOR PART: GR-P247, GR-P207, GR-L247, GR-L207 200A 206C 206B 202A 206A 205A 205A 205C 210A 205D 205F 210B 210C 205C 205B 205B 210C 201A 206E 203A - 104 -...
  • Page 105 EXPLODED VIEW FREEZER DOOR PART: GR-C247, GR-C207, GR-B247, GR-B207, GR-B197 200A 206C 206B 202A 205A 206A 205A 205C 210B 205D 205F 210B 210B 205C 205B 205B 210C 210C 201A 206E 203A - 105 -...
  • Page 106 EXPLODED VIEW Ref No. : GR-P247, GR-P207, GR-C247, GR-C207 REFRIGERATOR DOOR PART : Optional part 230A 205A 241A 206D 241B 236A 147C 147B 232A 147A 234A 205F 243A 206B 240A 205A 264B 205C 402B 266A 266C 262A 265A 261A 267A 264C 205B 260A...
  • Page 107 EXPLODED VIEW Ref No. : GR-L247, GR-L207, GR-B247, GR-B207, GR-B197 REFRIGERATOR DOOR PART : Optional part 230A 241A 206D 241B 236A 147C 232A 147B 234A 147A 205A 243A 206B 240A 205A 205C 205F 243A 240A 205D 240C 205B 205C 205B 231A 233A 240C...
  • Page 108 EXPLODED VIEW FREEZER COMPARTMENT : Optional part 101A 270A 271B 271A 137A 136C 402A 403A 135A 136C 136B 136A 152A 400A 131B 401A 131A 302A 130A 128C 408B 120D 121A 128D 120B 320C 320A 120B 320A 272A 103A 120B 408A 320B 120A 135B...
  • Page 109 EXPLODED VIEW REFRIGERATOR COMPARTMENT : Optional part 140A 140D 101B 146A 270B 140C 271B 271A 141A 626C 626B 141D 626A 171A 115A 171B 116A 141C 115B 410A 170C 402A 170B 151C 170A 624C 140D 152A 151E 140A 401A 177A 151D 150A 162A 177B...
  • Page 110 EXPLODED VIEW ICE & WATER PART : Optional part 622A 625A 618A 616E 616F 616G 616D 623A 627A 624B 623A 623B 619A 404A 619A 612A 612C 620A 620B 600A 607A 612B 610A 602A 605A 616C 616A 604A 611A 616A 603B 616B 510B 601A...
  • Page 111 EXPLODED VIEW MACHINE COMPARTMENT : Optional part 411A 502A 407A 407B 505A 303A 500A 303B 502B 304A 303C 303D 313A 300A 310B 307A 307A 306C 317A 301A 317B 306D 104A 308B 306A 309A 309B 305A 403B 306C 305B 310A 309B 305C 308A 308C...
  • Page 112 EXPLODED VIEW DISPENSER PART 277A 278A 278C 402C 278B 276A 275A 278F 278E 405A 275D 278D 276B 401C 275C 275B 501A 281A 280C 280B 280A 207A 279A - 112 -...

  • Page 113: Replacement Parts List

    P/No. 3828JD8456H APR., 2002 Printed in Korea...

This manual is also suitable for:

Lrspc2331bs

Table of Contents