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LG SxS GR-B207 User Manual

LG SxS GR-B207
125 pages
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CAUTION
PLEASE READ CAREFULLY THE SAFETY PRECAUTIONS OF THIS BOOK
BEFORE CHECKING OR OPERATING THE REFRIGERATOR.
Ref. No.
GR-P207
GR-P247
REFRIGERATOR
SERVICE MANUAL
Ref. No.
GR-L207ERA
GR-L207TRA
GR-L247TRA
Ref. No.
GR-C207
GR-C247
Ref. No.
GR-B207
GR-B247
MODEL:
COLOR: SUPER WHITE
NOBLE INOX
http://biz.lgservice.com
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LG SxS GR-B207 Specifications

General IconGeneral
BrandLG
ModelSxS GR-B207
CategoryRefrigerator
LanguageEnglish

Summary

LG Refrigerator Service Manual

Safety Precautions

Important safety warnings and precautions to prevent accidents and danger during repair.

General Safety Warnings and Precautions

Electrical Safety Guidelines

Precautions related to electric shock, grounding, and wiring.

Operational and Disposal Safety

Guidelines for safe operation, handling of materials, and disposal.

Refrigerator Model Specifications

GR-P247 Specifications

Detailed technical specifications for the GR-P247 model.

GR-P207 Specifications

Detailed technical specifications for the GR-P207 model.

GR-L247 Specifications

Detailed technical specifications for the GR-L247 model.

GR-L207 Specifications

Detailed technical specifications for the GR-L207 model.

GR-C247 Specifications

Detailed technical specifications for the GR-C247 model.

GR-C207 Specifications

Detailed technical specifications for the GR-C207 model.

GR-B247 Specifications

Detailed technical specifications for the GR-B247 model.

GR-B207 Specifications

Detailed technical specifications for the GR-B207 model.

Refrigerator Parts Identification

GR-P247, GR-P207 Parts Diagrams

Diagrams identifying parts for GR-P247 and GR-P207 models.

GR-L247, GR-L207 Parts Diagrams

Diagrams identifying parts for GR-L247 and GR-L207 models.

GR-C247, GR-C207 Parts Diagrams

Diagrams identifying parts for GR-C247 and GR-C207 models.

GR-B247, GR-B207 Parts Diagrams

Diagrams identifying parts for GR-B247 and GR-B207 models.

Refrigerator Installation Guide

Adjusting Door Height

Procedure for adjusting the height of refrigerator and freezer doors.

Water Pipe Installation

Steps and components for installing the water pipe for the refrigerator.

Water Supply and Filter Setup

Connecting water supply, using filters, and flushing the system.

Icemaker Water Supply Control

How to control and adjust the amount of water supplied to the icemaker.

MICOM Control Functions

Monitor Panel and Temperature Settings

Description of the control panel display and temperature adjustment.

LCD Backlight and Outside Temperature Display

Details on LCD backlight behavior and outside temperature display function.

Dispenser and Automatic Ice Maker Operation

How to use the dispenser and the operation of the automatic ice maker.

Super Freezer and Lock Functions

Explanation of the Super Freezer and Lock functions for the refrigerator.

Door Opening Alarm and Buzzer Functions

How the door opening alarm and button selection buzzers operate.

Frost Removal and Sequential Operation

Details on the frost removal function and sequential operation of components.

Failure Diagnosis Function

Information on how to diagnose failures using error codes and product status.

Test Function Procedure

Procedure for using the test function to check PWB and product failures.

Dispenser and Water Dispenser Built-in

Functions related to the dispenser and built-in water dispenser.

MICOM Circuit Explanations

Power Circuit Details

Description of the power circuit within the refrigerator's control system.

Oscillation and Reset Circuits

Explanation of the oscillation and reset circuits for the MICOM.

Load Driving and Door Opening Circuits

Circuits controlling load operation and door opening detection.

Dispenser Operation Circuit

Explanation of the circuit responsible for dispenser operation.

Door Opening Sensing Circuit

Details on the circuit that senses door opening status.

Temperature Sensing Circuits

Explanation of circuits for sensing various temperature points within the refrigerator.

Switch Entry and Option Designation Circuits

Circuits for sensing switches and designating model options.

Stepping Motor Operation Circuit

Explanation of the circuit that controls the stepping motor.

Fan Motor Driving Circuits

Description of the circuits controlling the fan motors for different compartments.

Temperature Compensation Circuits

Circuits for temperature compensation in freezing and cold storage rooms.

Compensation for Weak-Cold/Over-Cold

Circuit for compensating weak-cold or over-cold conditions in the freezing room.

Communication Circuit Between PCBs

Explanation of the communication circuit between main PCB and display PCB.

Sensor Resistance Characteristics Table

Table showing sensor resistance values at different temperatures.

PWB Parts Diagram and List

Diagrams and lists of components on the Printed Wiring Board (PWB).

Display Circuit Diagram

Schematic diagram of the display circuit for the refrigerator.

Ice Maker and Dispenser Operation

Ice Maker Working Principles

Detailed explanation of how the automatic ice maker functions.

Dispenser Working Principles

How the water and ice dispenser functions work.

Ice Maker Function Details

Specific functions of the ice maker, including water supply control.

Ice Ejection Control Function

How the ice is ejected from the ice maker and the sequence of operations.

Ice Maker Troubleshooting Guide

Step-by-step guide for troubleshooting common ice maker problems.

Overall Circuit Diagrams

Main PWB Circuit Diagram

Block diagram of the main Printed Wiring Board (PWB) connections.

Display PWB Circuit Diagram

Block diagram of the display Printed Wiring Board (PWB) connections.

Troubleshooting Common Issues

Power and Compressor Faults

Diagnosing and resolving issues related to power and compressor failures.

Temperature and Cooling Problems

Troubleshooting weak refrigeration, icing, and cooling air circulation.

Defrosting Failures

Diagnosing and fixing problems related to the defrosting system.

Icing Issues and Their Causes

Identifying causes and solutions for icing problems in the refrigerator.

Handling Operational Sounds

Diagnosing and resolving various operational sounds like whizz, click, and vibration.

Addressing Odor and Frost Issues

Troubleshooting methods for refrigerator odors and frost formation.

Resolving Other Refrigerator Problems

Solutions for issues like hot case, door problems, and high electric bills.

Heavy Repair Procedures for Cooling Cycle

Refrigerant Handling Standards

Standards for handling refrigerant R134a during repairs.

Summary of Heavy Repair Steps

Overview of the process for heavy repair, including vacuum and charging.

Precautions During Heavy Repair

Important precautions to follow during heavy repair procedures.

Practical Work for Heavy Repair

Detailed practical steps for heavy repair tasks like welding and drier replacement.

Brazing Reference Drawings

Diagrams illustrating brazing points for refrigerator components.

Handling Customer Claims

Resolving Sound-Related Claims

Explaining and addressing customer complaints about operational sounds.

Addressing Temperature-Related Claims

Measures for customer claims regarding refrigerator temperature issues.

Managing Odor and Frost Claims

Solutions for customer claims related to odors and frost.

Other Claim Resolutions

Resolving other customer claims like hot case and door issues.

Disassembly and Assembly Procedures

Door Disassembly and Assembly

Steps for disassembling and assembling the refrigerator and freezer doors.

Handle and Shroud/Grille Fan Disassembly

Procedures for disassembling the door handle and shroud/grille fan.

Ice Maker Assembly Disassembly

Steps for disassembling the ice maker unit.

Dispenser Disassembly and Parts

How to disassemble the dispenser and its related parts.

Water Tank and Home Bar Disassembly

Procedures for disassembling the water tank and home bar components.

Exploded Views of Refrigerator Components

Illustrated exploded views of various refrigerator parts for identification.

Freezer Door Exploded View

Exploded view of the freezer door assembly.

Refrigerator Door Exploded View

Exploded view of the refrigerator door assembly.

Freezer Compartment Exploded View

Exploded view of the freezer compartment and its components.

Refrigerator Compartment Exploded View

Exploded view of the refrigerator compartment and its components.

Ice & Water Part Exploded View

Exploded view of the ice and water dispensing system components.

Machine Compartment Exploded View

Exploded view of the machine compartment and its parts.

Dispenser Part Exploded View

Exploded view of the dispenser assembly and its components.

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