Table of Contents
Troubleshooting
Related Manuals for LG LFC25770ST
Summarization of Contents
Refrigerator Specifications
Refrigerator Dimensions and Diagrams
Provides detailed measurements and diagrams for refrigerator dimensions.
Refrigerator Disassembly Procedures
Refrigerator Door Removal and Reassembly
Step-by-step guide for removing and reassembling the refrigerator door.
Refrigerator Door Alignment Guide
Instructions for properly aligning the refrigerator doors to ensure a proper seal.
Pullout Drawer Service Instructions
Detailed steps for removing and reinstalling the refrigerator's pullout drawer.
Component Adjustment and Calibration
Compressor Service Information
Details the role, composition, and usage precautions for the refrigerator compressor.
TSD Starter and PTC Circuitry
Explains the TSD starter function and the PTC-applied circuit diagram for motor starting.
OLP (Overload Protector) Functionality
Defines the OLP's role in protecting the compressor motor from overcurrent and overheating.
Refrigerator Troubleshooting Guide
Compressor and Electric Component Diagnosis
Outlines troubleshooting steps for compressor and other electrical parts.
TSD and OLP Troubleshooting
Details troubleshooting procedures for the TSD starter and Overload Protector (OLP).
Other Electrical Component Fault Finding
Addresses issues related to other electrical components like fan motors and sensors.
Service Diagnosis and Remedy Chart
A chart correlating refrigerator complaints with points to check and recommended remedies.
Refrigeration Cycle and Troubleshooting
Sealed System Fault Diagnosis
A diagnostic flow chart for troubleshooting sealed system problems causing cooling issues.
Icemaker Operational Principles
Icemaker Functions and Operating Modes
Details specific functions like Start Position, Ice Making Mode, and Harvest Mode.
Icemaker Tests and Error Diagnosis
Covers test procedures and error codes for diagnosing icemaker malfunctions.
MICOM Control Functions and Circuits
Key Refrigerator Functions Overview
Details key functions like temperature adjustment, fan control, ICE PLUS, and lamp auto-off.
Door Alarms and Defrosting Process
Describes the open door alarm, buzzer sound, and the defrosting process and potential issues.
Sequential Electrical Component Operation
Outlines the startup sequence of electrical components to prevent noise and damage.
MICOM Defect Diagnosis and Error Codes
Explains the automatic defect diagnosis system and lists error codes displayed on the panel.
MICOM Test and Demonstration Modes
Details various test modes for checking PCB and functions, and a demonstration mode.
PCB Functions and Power Circuitry
Main PCB Power Supply Circuit
Illustrates the power circuit of the PCB, including voltage distribution and components.
Oscillation and Reset Circuitry
Explains the oscillation circuit for timing and the reset circuit for initializing the MICOM.
Load Drive and Door Detection Circuits
Covers circuits for load drive, buzzer, and open door detection.
Temperature Sensor and Damper Circuits
Details the temperature sensor circuits and the stepping motor damper circuit.
Exploded Views and Replacement Parts
Case Parts Identification
Lists replacement parts for the exterior case of the refrigerator.
Freezer Compartment Parts
Lists replacement parts specifically for the freezer compartment.
Refrigerator Compartment Parts
Lists replacement parts for the refrigerator compartment.
Door Assembly Parts List
Lists replacement parts for the refrigerator and freezer doors.
Water and Icemaker Parts List
Lists replacement parts for the water supply and icemaker systems.
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