LG LFC25770ST User Manual

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)
LFC21770ST LFC25770SW
LFC25770SB LFC25770TT
LFC25770ST
MODELS:

LG LFC25770ST Specifications

General

Brand	LG
Model	LFC25770ST
Type	French Door
Ice Maker	Yes
Water Dispenser	Yes
Energy Star Rated	Yes
Finish	Stainless Steel
Width	35.75 inches

Summary

Safety Precautions

Specifications Overview

Disassembly Procedures

Refrigerator Door Disassembly

Adjustment Procedures

Compressor Role and Handling

Role, composition, and usage precautions for the compressor.

OLP (Overload Protector)

Circuit Diagram

Troubleshooting Guide

Compressor and Electric Components Troubleshooting

Troubleshooting steps for compressor and related electrical parts.

TSD and OLP Diagnostics

Service Diagnosis Chart

Refrigeration Cycle Troubleshooting

Sealed System Diagnosis

Icemaker Operation and Repair

Icemaker Operation Principle

Icemaker Functions

Icemaker Function Test

MICOM Functions and Circuits

General Functions

Defect Diagnosis Function

Test Mode Procedures

PCB Functions

Power Circuit

Load, Buzzer, and Door Detection Circuits

Temperature Sensor Circuit

Sensor Resistance Specifications

General Troubleshooting

Power Source Issues

Diagnosing and resolving issues related to a poor power source.

Cooling System Defects

Main PWB Assembly and Parts List

Exploded View and Parts List