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LG LFXS28566S User Manual

LG LFXS28566S
108 pages
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CAUTION
BEFORE SERVICING THE UNIT,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
MODEL : LFXS28566*
REFRIGERATOR
SERVICE MANUAL
CONFIDENTIAL
Any reproduction, duplication, distribution (including by way of email, facsimile or other electronic means),
publication, modification, copying or transmission of this Service Manual is STRICTLY PROHIBITED unless
you have obtained the prior written consent of the LG Electronics entity from which you received this
Service Manual. The material covered by this prohibition includes, without limitation, any text, graphics or
logos in this Service Manual.
Copyright © 2016-2017 LG Electronics Inc. All rights reserved. Only training and service purposes

Questions and Answers:

LG LFXS28566S Specifications

General IconGeneral
Typefreestanding
Stylefrench door
Colorstainless steel
Number of Doors3
Total Capacity27.7 cubic feet
Refrigerator Capacity18.4 cubic feet
Freezer Capacity9.3 cubic feet
Humidity Controlled Crispersyes
Defrost Systemautomatic
Quick Freezeno
Number of Refrigerator Shelves4
Number of Refrigerator Door Binsyes
Temperature Controlelectronic
Interior Lightled
Dispenserice and water
Ice Makeryes
Water Filteryes
Air Filteryes
Door Alarmyes
Smart Hometrue, amazon alexa, google assistant
Wi-Fiwi-fi
Annual Energy Consumption724 kilowatt hours
Voltage120 volts
Current20 amperes
Weight and Dimensions IconWeight and Dimensions
Depth36 1/4 inches
Height69 3/4 inches
Width35 3/4 inches
Net Weight315.9 pounds

Summary

Refrigerator Service Manual

Safety Precautions

Specifications

Dimensions and Specs

Provides detailed dimensions and technical specifications for the unit.

Parts Identification

Refrigerator Interior Components

Diagram showing the layout and names of interior parts.

Disassembly Procedures

Refrigerator Door Removal

Detailed guide on how to safely remove and replace refrigerator doors.

Door and Mullion Servicing

Procedures for servicing the door, mullion, and gasket.

Dispenser Sub PCB Service

Instructions for removing and replacing the sub PCB for the dispenser.

Door Alignment and Fan Motor Replacement

Steps for aligning doors and replacing the evaporator fan motor.

Defrost Control Assembly Service

Procedure for replacing the defrost control assembly.

Lamp and Duct Component Service

Guidance on servicing compartment lamps and the multi duct.

Main and Display PCB Replacement

Instructions for removing and replacing the main and display PCBs.

Ice Corner Door and Icemaker Replacement

Procedures for replacing the ice corner door and the icemaker assembly.

Cap Duct Motor Replacement

Step-by-step guide for replacing the cap duct motor.

Ice Bin Removal and Insertion

Instructions for safely removing and inserting the ice bin.

Pullout Drawer Removal and Reinstallation

Detailed steps for removing and reinstalling the pullout drawer.

Water Valve and Fan Motor Disassembly

Procedures for disassembling the water valve and fan motor.

Drawer Removal Procedure

Instructions on how to remove and reinstall the drawers.

Vegetable Box Disassembly and Assembly

Steps to disassemble and reassemble the refrigerator's vegetable box.

Adjustment Procedures

Compressor Role and Protection Logic

Details on compressor function, usage precautions, and protection logic.

Circuit Diagrams

Troubleshooting Guide

Error Code Summary

Table detailing error codes, their causes, and display indicators.

PCB Component Identification

Main and Display PCB Layouts

Diagrams showing the main and display printed circuit boards and their connectors.

Sub PCB Identification

Diagram of the sub PCB and its connectors.

Troubleshooting Specific Errors

Freezer Sensor Error (FS E)

Procedure to diagnose and resolve the freezer sensor error.

Refrigerator Sensor Error (rS E)

Procedure to diagnose and resolve the refrigerator sensor error.

Icing Sensor Error (IS E)

Procedure to diagnose and resolve the icing sensor error.

Defrost Sensor Error (dS F)

Procedure to diagnose and resolve the defrost sensor error.

Ice Maker Motor Error (It E)

Procedure to diagnose and resolve ice maker motor errors.

Defrost Heater Error (dH F)

Procedure to diagnose and resolve defrost heater errors.

Freezer Fan Error (FF E)

Procedure to diagnose and resolve freezer fan errors.

Icing Fan Error (IF E)

Procedure to diagnose and resolve icing fan errors.

Condenser Fan Error (CF E)

Procedure to diagnose and resolve condenser fan errors.

Communication Error (CO E)

Procedure to diagnose and resolve communication errors between components.

Cube Mode Malfunction

Troubleshooting steps for when the cube mode does not function.

Crush Mode Malfunction

Troubleshooting steps for when the crush mode does not function.

Water Mode Malfunction

Troubleshooting steps for when the water mode does not function.

Refrigerator Lamp Malfunction

Troubleshooting steps for when the refrigerator compartment lamp fails.

Freezer Lamp Malfunction

Troubleshooting steps for when the freezer compartment lamp fails.

Poor Cooling in Fresh Food Section

Diagnosing and resolving issues with insufficient cooling in the fresh food compartment.

Poor Cooling in Freezer Compartment

Diagnosing and resolving issues with insufficient cooling in the freezer compartment.

Over Cooling in Freezer Compartment

Diagnosing and resolving issues with excessive cooling in the freezer compartment.

Home Bar Heater Malfunction

Troubleshooting steps for when the home bar heater fails to operate.

Hygiene Fan Malfunction

Troubleshooting steps for when the hygiene fan fails to operate.

Wi-Fi Modem Malfunction

Troubleshooting steps for when the Wi-Fi modem fails to operate.

Reference Information

Test Mode and TPA Removal

Guide on entering test modes and removing Terminal Position Assurance (TPA).

Temperature Chart: Freezer and Icing Sensor

Table correlating temperatures with resistance and voltage for FRZ and icing sensors.

Temperature Chart: Refrigerator and Defrost Sensor

Table correlating temperatures with resistance and voltage for refrigerator and defrost sensors.

Fan Error Diagnosis

Explanation of how the system checks for and displays fan errors.

Component Testing

Defrost Controller Assembly Testing

How to test the fuse-M and sensor in the defrost controller assembly.

Sheath Heater Testing

Procedure for testing the sheath heater's resistance.

Door Heater Assembly Testing

Instructions for testing the door heater assembly's resistance.

Dispenser DC Motor Testing

Procedure for measuring the resistance of the dispenser DC motor.

AC Motor Assembly Testing

How to measure resistance for the AC motor assembly.

Damper Testing

Procedure for checking damper electrical current and resistance.

Flow Sensor Testing

Procedure for testing the flow sensor's resistance.

Compressor Troubleshooting

PCB Check and Test Mode

Steps for checking the PCB and entering test mode for compressor diagnostics.

Compressor Check A: IPM Output

Procedure to check IPM output voltage for compressor operation.

Compressor Check B: LED Blink Patterns

Interpreting LED blink patterns for compressor fault diagnosis.

Compressor Check C: Harness and Capacitor

Checking harness connections, capacitor specs, and compressor terminals.

Compressor Check D: System Diagnosis

Diagnosing sealed system issues related to compressor operation.

Service Diagnosis Chart

Refrigeration Cycle Troubleshooting

Refrigeration Cycle States Analysis

Analysis of different states within the refrigeration cycle and their causes.

Sealed System Diagnosis

Flowchart for diagnosing problems within the sealed refrigeration system.

Icemaker Operation and Troubleshooting

Icemaker Basic Operating Method

Overview of the icemaker's operational steps and modes.

Icemaker Functions and Water System Issues

Details on icemaker functions and troubleshooting water system problems.

Icemaker Ice Production Diagnosis

Step-by-step diagnosis for icemaker not making ice or not making enough.

Icemaker Suspected Issues and Ice Dispensing

Troubleshooting other suspected icemaker issues and ice dispensing problems.

MICOM Functions and Circuit Description

Basic Functions and Display Toggle

Overview of basic appliance functions and how to toggle between °F and °C.

Filter, Ice Plus, and Dispenser Usage

Guidance on filter status display, ice plus selection, and dispenser usage.

Hygiene Filter, Auto, and Power Modes

Instructions for operating the hygiene filter and understanding auto/power modes.

Fan Motor Controls and Ice PLUS Function

Details on freezer fan motor, cooling fan, ice compartment fan, and Ice PLUS function.

Defrosting, Defect Diagnosis, and Auto Pantry

Information on defrosting, defect diagnosis, and auto pantry temperature control.

Exploded View and Parts List

Case Parts Diagram

Exploded view of the refrigerator's case parts with identification numbers.

Freezer Parts Diagram

Exploded view of freezer compartment parts with identification numbers.

Refrigerator Parts Diagram

Exploded view of refrigerator compartment parts with identification numbers.

Door Parts Diagram

Exploded view of door components with identification numbers.

Dispenser Parts Diagram

Exploded view of dispenser assembly parts with identification numbers.

Valve and Water Tube Parts Diagram

Exploded view of valve and water tube components with identification numbers.

Icemaker and Ice Bin Parts Diagram

Exploded view of icemaker and ice bin components with identification numbers.

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