LG GR-R463JCA Service Manual
  1. Manuals
  2. Brands
  3. LG Manuals
  4. Refrigerator
  5. GR-R463JCA
  6. Service manual

LG GR-R463JCA Service Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

REFRIGERATOR
SERVICE MANUAL
CAUTION
BEFORE SERVICING THE UNIT, READ THE "SAFETY
PRECAUTIONS" IN THIS MANUAL.
Ref. No.
GR-R522JQA
MODEL: GR-R463JCA
http://biz.lgservice.com
COLOR:SUPER WHITE

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the GR-R463JCA and is the answer not in the manual?

Questions and answers

Related Manuals for LG GR-R463JCA

Summary of Contents for LG GR-R463JCA

  • Page 1 REFRIGERATOR SERVICE MANUAL CAUTION BEFORE SERVICING THE UNIT, READ THE "SAFETY PRECAUTIONS" IN THIS MANUAL. Ref. No. GR-R522JQA MODEL: GR-R463JCA COLOR:SUPER WHITE...

  • Page 2: Table Of Contents

    CONTENTS SAFETY PRECAUTIONS ............................... 2 SERVICING PRECAUTIONS..............................3 SPECIFICATIONS ................................4-5 PARTS IDENTIFICATION..............................6-7 DISASSEMBLY..................................8-9 DOOR....................................8 DOOR SWITCH..................................8 THERMISTOR ..................................8 FAN AND FAN MOTOR................................ 8 DEF' CONTROL ASM ................................9 LAMP....................................9 CONTROL BOX-R................................9 ADJUSTMENT................................. 10-11 COMPRESSOR..................................

  • Page 3: Safety Precautions

    SERVICING PRECAUTIONS Air Recharging in Compressor vacuum operation is over, add the quantity in grams of R- 134a to the refrigerant system. Remember that every Test the refrigeration by connecting it electrically before system has an exact quantity of R-134a with a tolerance of refilling operation.

  • Page 4: Specifications

    1. SPECIFICATIONS SPECIFICATIONS ITEMS GR-R522 / GR-S522 GR-R472 / GR-S472 FREEZER NET CAPACITY REFRIGERATOR ( l ) TOTAL DIMENSIONS (mm) 680(W) 758(D) 1725(H) 680(W) 708(D) 1725(H) NET WEIGHT (kg) FREEZER Knob Dial TEMPERATURE CONTROL REFRIGERATOR Micom Control Full Automatic DEFROSTING SYSTEM Heater Defrost OUT CASE Coated Steel Sheet...

  • Page 5: Specifications

    SPECIFICATIONS ITEMS GR-522 GR-472 FREEZER NET CAPACITY REFRIGERATOR ( l ) TOTAL DIMENSIONS (mm) 680(W) 758(D) 1725(H) 680(W) 708(D) 1725(H) NET WEIGHT (kg) FREEZER Knob Dial TEMPERATURE CONTROL REFRIGERATOR Micom Control Full Automatic DEFROSTING SYSTEM Heater Defrost OUT CASE Coated Steel Sheet INNER CASE A B S INSULATION...

  • Page 6: Parts Identification

    2. PARTS IDENTIFICATION u u GR-R472/R522 FREEZER COMPARTMENT Lamp Freezer Temperature Control Dial Freezer Shelf Twisting Ice Serve (Optional) Freezer Door Rack General Type Ice Making Egg Storage Rack (Optional) REFRIGERATOR Dairy Conner COMPARTMENT Wine Rack Deodorizer(Optional) (Option if steel shelf) You can use Fresh Zone this as...
  • Page 7 u u GR-S472/S522 FREEZER COMPARTMENT Lamp Freezer Temperature Control Dial Freezer Shelf Twisting Ice Serve (Optional) Freezer Door Rack General Type Ice Making Egg Storage Rack (Optional) REFRIGERATOR Dairy Conner COMPARTMENT Wine Rack Deodorizer(Optional) (Option if steel shelf) Fresh Zone You can use this as Refrigerator Temperature...
  • Page 8 u u GR-472/522 FREEZER COMPARTMENT Lamp Freezer Temperature Control Dial Freezer Shelf Twisting Ice Serve (Optional) Freezer Door Rack General Type Ice Making (Optional) Egg Storage Rack REFRIGERATOR COMPARTMENT Deodorizer(Optional) Wine Rack (Option Fresh Zone if steel shelf) You can use Temperature this as Control Dial...

  • Page 9: Disassembly

    3. DISASSEMBLY 3-1 DOOR 3-2 DOOR SWITCH Freezer Door 1. To remove the door switch, pull out it with a '—' type 1. Remove the hinge cover by pulling it upwards. driver as shown in (figure 9). 2. Loosen hexagonal bolts fixing the upper hinge to the 2.

  • Page 10: Def' Control Asm

    6. Disconnect the housing of lead wire. 3-6 LAMP 7. Separate the Fan Assy. 8. Loose 2 screw fixed to the Bracket. FREEZER ROOM LAMP REFRIGERATOR ROOM LAMP 9. Pull out Shroud-F remove the Fan Motor Assy. 10. Separate the Motor Bracket and Rubber. FAN MOTOR SHROUD Figure 16...

  • Page 11: Adjustment

    4. ADJUSTMENT 4-1 COMPRESSOR 4-2-3 PTC-Applied Circuit Diagram According to Starting Method of Motor 4-1-1 Role The compressor inhales low temperature and low pressure gas evaporated from Evaporator of the Refrigerator, and OVERLOAD PROTECTOR condenses this gas to high temperature and high pressure gas, and then plays delivering role to Condenser.

  • Page 12: Olp (Over Load Protector)

    4-3 OLP (OVER LOAD PROTECTOR) CONTACTING 4-3-1 Definition of OLP POINT COVER (1) OLP (OVER LOAD PROTECTOR) is attached to Hermetic Compressor and protects Motor by cutting off BIMETAL current in Compressor Motor by Bimetal in the OLP in case of over-rising temperature. (2) When over-voltage flows to Compressor motor, Bimetal CONTACTING POINT...
  • Page 13 GR-S472/S522 GR-472/522 NOTE : 1. This is a basic diagram and specifications vary in different localities. - 13 -...

  • Page 14: Troubleshooting

    6. TROUBLESHOOTING 6-1 COMPRESSOR AND ELECTRIC COMPONENTS (Rating Voltage Remove the PTC-Starter Power Source. ±10%)? from the Compressor and measure the voltage between Terminal C of Compressor and Terminals 5 or 6 of PTC. No Voltage. OLP disconnected? Replace OLP. Check connection condition.

  • Page 15: Ptc And Olp

    6-2 PTC AND OLP Check another Normal operation of Separate the PTC from Observation value is electric components. Compressor is 220V/50Hz : 22 ±30% Compressor and impossible or poor. 115V/60Hz : 6.8 ±30% measure the resistance 240V/50Hz : 33 ±30% between No.

  • Page 16: Another Electric Components

    6-3 ANOTHER ELECTRIC COMPONENTS Cooling is impossible Compressor Check if current flows to Cause. doesn't run. the following components. a. Thermistor Poor contacting. b. Starting devices Shorted or broken. Poor contacting c. OLP or shorted. d. Compressor coil Coil shorted. Replace Poor contacting e.

  • Page 17: Service Diagnosis Chart

    6-4 SERVICE DIAGNOSIS CHART COMPLAINT POINTS TO BE CHECKED REMEDY Cooling is • Is the power cord unplugged from the outlet? • Plug to the outlet. impossible. • Check if the power S/W is set to OFF. • Set the switch to ON. •...

  • Page 18: Refrigerating Cycle

    6-5 REFRIGERATING CYCLE Troubleshooting Chart TEMPERATURE STATE OF STATE OF THE CAUSE REMARKS OF THE THE SET EVAPORATOR COMPRESSOR PARTIAL Freezer and Low flowing sound of A little high • A little Refrigerant LEAKAGE Refrigerator Refrigerant is heard and more than •...

  • Page 19: Refrigerating Cycle

    General Control of Refrigerating Cycle ITEMS CONTENTS AND SPECIFICATIONS REMARKS WELDING (1) H 30 • Chemical Ingredients • Recommend H34 containing 34% Ag in the (1) • Ag: 30%, Cu: 27%, Zn: 23%, Cd: 20% • Service Center. • Brazing Temperature: 710~840°C (2) Bcup-2 •...

  • Page 20: Description Of Function & Circuit Of Micom

    7. DESCRIPTION OF FUNCTION & CIRCUIT OF MICOM The following description is basically for GR-R472/GR-R522, GR-S472/GR-S522, GR-472/GR-522. For the other models, refer to the diagram of the entire PCB circuit. 7-1 FUNCTION 7-1-1 FUNCTION 1. When the appliance is plugged in, it is set to ‘Medium’. Each time the button is pushed, it is set to ‘Medium’...
  • Page 21 7-1-2 DEFROSTING 1. The defrosting is performed each time when the total running time of the compressor reaches 7 hours. 2. After the power is turned on (or restored after a power failure), the defrosting starts when the total running time of the compressor reaches 4 hours.
  • Page 22 7-1-4 ERROR DIAGNOSTIC MODE 1. The error diagnostic mode allows the SVC when a fault that may affect the performance of the product occurs while operating the product. 2. Even if the function control button is pushed when an error occurs, the function will not be performed. 3.
  • Page 23 7-2 PCB FUNCTION 7-2-1 POWER CIRCUIT The secondary part of the TRANS is composed of the power supply for the display and relay drive (12Vdc) and that for the MICOM and IC (5Vdc). The voltage for each part is as follows. PART VA 1 CE 2...
  • Page 24 7-2-2 OSCILLATION CIRCUIT This circuit is to generate the base clock for calculating time and the synchro clock for transmitting data from and to the inside logic elements of the IC1(MICOM). Be sure to use the authentic parts since the calculating time by the IC1 may be changed or it will not work if the OSC1 SPEC is changed.
  • Page 25 7-2-4 LOAD DRIVE CIRCUIT 1. Load Drive Condition Check Comp, Load Type Defrosting Heater Freezer Fan Motor Measurement Location(IC5) No.13 No.10 1V or below Condition - 25 -...
  • Page 26 7-2-5 TEMPERATURE SENSOR CIRCUIT The upper CIRCUIT reads REFRIGERATOR temperature and DEF-SENSOR temperature for defrosting into MICOM. OPENING or SHORT state of each TEMPERATURE SENSOR are as follows. SENSOR CHECK POINT NORMAL(-30 °C ~ 50 °C) SHORT-CIRCUITED OPEN Refrigerator Sensor POINT Voltage 0.5 V ~ 4.5 V...
  • Page 27 7-2-7 TEMPERATURE COMPENSATION & OVERCOOLING/UNDERCOOLING COMPENSATION CIRCUIT 1. Refrigerator Temperature Compensation Refrigerator Resistance Temperature Remark (RCR1) Compensation 180 K +2.5 °C Compensation by raising the 56 K +2.0 °C temperature 33 K +1.5°C 18 K +1.0 °C 12 K +0.5 °C 10 K 0 °C Standard Temperature...
  • Page 28 7-2-8 KEY BUTTON INPUT & DISPLAY LIGHT ON CIRCUIT The circuit shown above is to determine whether a function control key on the operation display is pushed and to turn on the corresponding function indication LED. The drive type is the scan type. - 28 -...
  • Page 29 7-3 RESISTANCE SPECIFICATION OF SENSOR TEMPERATURE SENSOR RESISTANCE OF REFRIGERATOR (DEFROST) SENSOR - 20 ˚C 77 K - 15 ˚C 60 K - 10 ˚C 47.3 K - 5 ˚C 38.4 K 0 ˚C 30 K + 5 ˚C 24.1 K + 10 ˚C 19.5 K + 15 ˚C...
  • Page 30 - 30 -...
  • Page 31 - 31 -...
  • Page 32 7-5 MAIN PWB ASSEMBLY AND PARTS LIST 7-5-1 MAIN PWB ASSEMBLY u u GR-R472/R522 - 32 -...
  • Page 33 7-5-2 MAIN PWB ASSEMBLY u u GR-S472/S522 - 33 -...

  • Page 34: Replacement Parts List

    7-5-3 REPLACEMENT PARTS LIST u u GR-R472/R522 - 34 -...
  • Page 35 7-5-4 REPLACEMENT PARTS LIST u u GR-S472/S522 - 35 -...
  • Page 36 7-5-5 PWB ASSEMBLY, DISPLAY AND PARTS LIST u u GR-R472/R522 - 36 -...
  • Page 37 7-5-6 PWB ASSEMBLY, DISPLAY AND PARTS LIST u u GR-S472/S522 - 37 -...
  • Page 38 7-6-1 PWB DIAGRAM u u GR-R472/R522 - 38 -...
  • Page 39 - 39 -...
  • Page 40 7-6-2 PWB DIAGRAM u u GR-S472/S522 - 40 -...
  • Page 41 REF. TEMP. CONTROL - 41 -...

  • Page 42: Exploded View

    #EV# 8. EXPLODED VIEW 8-1. The parts of refrigerator and the shape of each part are subject to change in different localities. Capacitors and fuse are optional parts. 281A 281A 301A 401A 281B 103B 103A 129A 501F 409A 411A 501A 418A 410G 158B...
  • Page 43 #EV# u u GR-R472/522, GR-S472/522 405C 405A 404A 329A 330B 149D 332A 136C 136D 149B 110B 140A 125A 131A 125H 149C 149A 125J 149C 136A 136B 149C 149C 136A 136B 154A 152B 152A 155B 151A - 43 -...
  • Page 44 #EV# u u GR-R472/522, R472/522 203A 200A 201A 205A 201A 201A 201A 212G 205A 212G 212A 212G 212C 212A 212G 212C 212A 212A 212C 210B 503B 210A 249B 503C 235A 233A 210B 233B 210A 230A 231A 231A 241C 231A 231A 244A 244C 244A...
  • Page 45 #EV# u u GR-472/522 405C 405A 200A 203A 205A 329A 201A 404A 330B 201A 205A 332A 212G 212G 212A 212C 212A 212C 149D 210B 110B 210A 210B 125A 210A 131A 125H 125J 235A 149A 136C 230A 136D 233A 231A 241A 231A 140A 149C...
  • Page 46 P/No. 3828JD8605W JUN, 2005 Printed in Korea...

This manual is also suitable for:

Gr-r522jqaGr-r522Gr-s522Gr-r472Gr-s472Gr-522 ... Show all

Table of Contents

Save PDF