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LG LRSC26940ST - User Manual

LG LRSC26940ST
143 pages
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CAUTION
PLEASE READ CAREFULLY THE SAFETY PRECAUTIONS OF THIS MANUAL
BEFORE CHECKING OR OPERATING THE REFRIGERATOR.
REFRIGERATOR
SERVICE MANUAL
LRSC26925SW
LRSC26925TT
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LRSC26915TT
LRSC26912SW
LRSC26912TT
LRSC26940SW
LRSC26940SB
LRSC26940TT
LRSC26940ST
LRSC26941SW
LRSC26941SB
LRSC26941ST
http://biz.lgservice.com
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LG LRSC26940ST Specifications

General IconGeneral
TypeSide-by-Side
Ice MakerYes
Water DispenserYes
Energy Star CertifiedYes
Door FinishStainless Steel
Refrigerator FeaturesLED Lighting
Freezer FeaturesShelves

Summary

WARNINGS AND PRECAUTIONS FOR SAFETY

SPECIFICATIONS

Model Reference Numbers

Lists specific model numbers for refrigerator specifications.

General Specifications

Provides key physical and operational specifications like dimensions and weight.

PARTS IDENTIFICATION

Refrigerator Components Overview

Illustrates and labels major parts of the refrigerator.

HOW TO INSTALL REFRIGERATOR

Adjusting Door Height

Steps for adjusting the height of refrigerator doors for proper leveling.

Water Filter Replacement

Instructions for replacing the water filter cartridge.

Icemaker Water Supply Control

Procedure to control the amount of water supplied to the icemaker.

MICOM FUNCTION

Monitor Panel & Display Functions

Operation of the monitor panel and secondary display features.

Core Operational Modes

Covers dispenser use, freezing modes, and dispenser light functions.

Advanced Temperature & Sensing Controls

Details OptiChill, fan control, and temperature sensing operations.

System Management & Troubleshooting

Explains frost control, alarms, test modes, and failure diagnosis.

EXPLANATION FOR MICOM CIRCUIT

Power Circuitry

Details the power supply unit (SMPS) and its components.

Oscillation and Reset Circuits

Explains the clock signal generation and system reset mechanisms.

Load Driving and Door Sensors

Describes circuits for component operation and door status detection.

Dispenser and Temperature Sensing Circuits

Details dispenser operation and temperature sensor input circuits.

Motor and Communication Circuits

Covers stepping motor control, switch inputs, and inter-PCB communication.

PWB Diagrams and Parts List

Provides main PCB assembly diagrams and component lists.

ICE MAKER AND DISPENSER WORKING PRINCIPLES AND REPAIR

Ice Maker Operation Principles

Explains the step-by-step working principles of the ice maker.

Dispenser Operation Principles

Details how the ice and water dispenser functions.

Ice Maker Function Details

Describes initial control, water supply, and ice making functions.

Ice Ejection and Test Functions

Explains ice ejection control and the system's test function.

Ice Maker Troubleshooting

Provides guidance for diagnosing and resolving ice maker issues.

CIRCUIT

Circuit Diagram - Model GR-L267 BV(T)R

Presents the detailed circuit diagram for the GR-L267BV(T)R model.

Circuit Diagram - Model GR-L267 BV(T)RA

Presents the detailed circuit diagram for the GR-L267BV(T)RA model.

Circuit Diagram - Model GR-L267 BV(T,S)PA

Presents the detailed circuit diagram for the GR-L267BV(T,S)PA model.

TROUBLE DIAGNOSIS

Troubleshooting Common Issues

Covers initial checks for power, start circuits, and defrost problems.

Cooling System Problems

Addresses issues related to no cooling and weak refrigeration performance.

Temperature and Operation Faults

Discusses problems with compartment temperatures, operation, and condensation.

Component-Specific Faults

Details issues related to lamps, internal voltage, and structural problems.

Faults

Power and Compressor Faults

Addresses power supply issues and compressor operational failures.

Temperature Regulation Faults

Covers problems related to temperature control and cooling efficiency.

Defrosting and Icing Issues

Details failures in the defrost system and ice formation problems.

Sound and Odor Related Faults

Discusses troubleshooting for unusual sounds and odors.

Micom and Display Faults

Addresses issues with the control unit (Micom) and display system.

Cooling Cycle Heavy Repair

R134 a Refrigerant Repair Standards

Outlines standards for refrigerant handling and system opening.

Heavy Repair Procedures Summary

Summarizes key steps for heavy repair processes.

Repair Precautions and Regulations

Provides essential precautions for performing heavy repairs.

Brazing and Leak Check Procedures

Details regulations and practices for brazing and leak testing.

HOW TO DEAL WITH CLAIMS

Addressing Sound-Related Claims

Explains common sounds and how to address customer complaints about them.

Temperature Symptom Resolution

Provides measures for addressing symptoms related to temperature control.

Odor and Frost Issue Resolution

Offers solutions for problems concerning refrigerator odor and frost formation.

Other Common Claims

Covers claims related to hot case, door issues, and power connection.

HOW TO DISASSEMBLE AND ASSEMBLE

Door Disassembly and Assembly

Step-by-step guide for removing and reattaching refrigerator doors.

Handle Component Removal

Instructions for disassembling and assembling the refrigerator handles.

Fan Shroud and Icemaker Assembly

Procedures for disassembling fan shrouds and assembling the icemaker.

Dispenser Unit Disassembly

Detailed steps for disassembling the refrigerator's dispenser assembly.

EXPLODED VIEW

Door Assembly Exploded Views

Exploded views of freezer and refrigerator doors across different models.

Compartment Exploded Views

Exploded views of freezer and refrigerator compartment components.

System Component Exploded Views

Exploded views of ice/water, mechanical, and dispenser systems.

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