LG GR-359 Service Manual

CAUTION
BEFORE SERVICING THE UNIT, READ THE "SAFETY
PRECAUTIONS" IN THIS MANUAL.
MODEL: GR-359/399
REFRIGERATOR
SERVICE MANUAL

LG GR-359 Specifications

General

Brand	LG
Model	GR-359
Category	Refrigerator
Language	English

Summary

SAFETY PRECAUTIONS

SERVICING PRECAUTIONS

Refrigerant (R600a) Features

Properties and characteristics of R600a refrigerant.

Refrigerator Specific Features

Compressor Air Recharging Procedure

DOOR REVERSAL

DISASSEMBLY (Part 1)

Door and Door Switch Disassembly

Procedures for removing doors and switches.

DISASSEMBLY (Part 2)

Fan, Motor, Defrost, Damper, Heater Disassembly

COMPRESSOR & PTC-STARTER ADJUSTMENT

Compressor Operation and Usage

PTC-Starter Function and Circuit

TROUBLESHOOTING (Part 1)

Compressor & Electric Component Issues

Diagnosing compressor and related electrical faults.

TROUBLESHOOTING (Part 2)

Relay Assy (PTC/OLP) Faults

Troubleshooting the relay assembly (PTC and OLP).

TROUBLESHOOTING (Part 3)

Other Electric Component Faults

Diagnosing issues with other electrical parts.

SERVICE DIAGNOSIS CHART

REFRIGERATING CYCLE (Part 1)

Refrigerating Cycle Troubleshooting

Diagnosing problems within the cooling cycle.

REFRIGERATING CYCLE (Part 2)

MICOM & PCB EXPLANATION (Part 1)

Function Exposition Overview

Overview of refrigerator functions like Quick Freeze, Vacation.

MICOM & PCB EXPLANATION (Part 2)

Door Alarms, Defrosting, and Operation Order

MICOM & PCB EXPLANATION (Part 3)

Self-Test and Function Test

ELECTRONIC FUNCTION DESCRIPTIONS (Part 1)

Electric Circuits Overview

LOAD, BUZZER, AND DOOR SENSING CIRCUITS

TEMPERATURE SENSOR CIRCUITS

TEMPERATURE COMPENSATION

KEY BUTTON INPUT AND DISPLAY LIGHTING

PWB CIRCUIT DRAWING