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LG LFD25860SB User Manual

LG LFD25860SB
47 pages
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CAUTION
BEFORE SERVICING THE PRODUCT,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
REFRIGERATOR
SERVICE MANUAL
COLORS: WESTERN BLACK(SB)
TITANIUM(TT)
SUPER WHITE(SW)
STAINLESS(ST)
LFD21860ST LFD25860ST
LFD21860SW LFD25860TT
LFD25860SB
LFD25860SW
MODELS:
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LG LFD25860SB Specifications

General IconGeneral
TypeFrench Door
Total Capacity25.5 cu. ft.
Ice MakerYes
Energy Star CertifiedYes
Water DispenserYes
ColorBlack Stainless Steel
Dimensions (W x H x D)35.75 x 69.875 x 36.75 inches

Summary

Safety Precautions

Refrigerator Specifications

Parts Identification

Disassembly and Alignment

Refrigerator Door and Drawer Procedures

Steps for removing/replacing doors, gaskets, and pullout drawers.

Door Alignment Guide

Instructions for aligning refrigerator doors for proper fit.

Component Adjustments and Protection

Compressor and PTC Starter Functionality

Role, composition, and handling of compressor and PTC starter.

Overload Protector (OLP) and PTC Cover Removal

OLP function, and steps to remove the PTC cover.

Circuit Diagram Overview

Troubleshooting and Diagnosis

Component-Specific Troubleshooting

Diagnosing issues with compressors, PTC/OLP, fans, and defrost systems.

Service Diagnosis Chart

Correlating complaints with checks and recommended remedies.

Refrigeration and Sealed System Diagnosis

Analyzing refrigeration cycle problems and sealed system issues.

Icemaker Operation and Maintenance

Icemaker Operational Principles and Functions

Explains the icemaker cycle, modes, and specific operational functions.

Icemaker Testing and Error Codes

Procedures for functional testing and interpreting icemaker error codes.

MICOM Control System Functions

Core MICOM Functions and Settings

Temperature control, fan operation, Ice Plus, and lamp auto-off features.

Alarms, Defrost, and Test Modes

Open door alarm, defrost cycle, and various test modes for diagnosis.

Printed Circuit Board (PCB) Functions

Power, Oscillation, and Reset Circuits

Details on the power supply, clock generation, and initialization circuits.

Load, Sensor, and Motor Control Circuits

Circuits for driving loads, detecting doors, sensors, and controlling the stepping motor.

Sensor Resistance Specifications

Comprehensive Troubleshooting and Solutions

General Troubleshooting Scenarios

Addresses issues like power, cooling, lamps, and gasket seals.

Specific System Troubleshooting

Diagnosing and fixing problems with defrosting and cooling systems.

Main PWB and Parts Information

Main PWB Assembly and Parts List

Diagram of the main PWB and a comprehensive list of replacement parts.

Display PWB and Components

Information on the display unit's PWB assembly and associated parts.

PWB Schematic and Compensation Details

Main PWB Assembly Schematic

Visual representation of the main Printed Wiring Board's connections.

Exploded Views and Parts Identification

Major Component Part Identification

Exploded views for case, freezer, refrigerator, door, water/icemaker, and dispenser parts.

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