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Daewoo FR-420N User Manual

Daewoo FR-420N
33 pages
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RFP341C001
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Daewoo FR-420N Specifications

General IconGeneral
ModelFR-420N
BrandDaewoo
CategoryRefrigerator
InstallationFreestanding
Defrost SystemManual Defrost
Number of Doors2
Weight70 kg
Total Capacity420 liters
Cooling SystemDirect Cool

Summary

Service Manual Introduction and Caution

Key Usage and Part Change Warnings

Warning about part changes and where to find the latest information.

Product Specifications

Model Information and Technical Data

Detailed technical specifications for different refrigerator models.

Interior Compartment Components

Refrigerator and Freezer Section Parts Identification

Identifies shelves, cases, pockets, and other internal components.

Machine Compartment Details

Compressor and Associated Components Identification

Illustrates and labels components in the compressor compartment.

Refrigerant Cycle Diagram

Refrigerant Flow and Key Component Placement

Shows the flow and placement of key refrigerant cycle components.

Temperature Control Settings

Compartment Temperature Adjustments

Details temperature settings for refrigerator, vegetable, and freezer compartments.

Wiring Diagrams

RF-420N Model Wiring Schematic

Electrical connections for RF-420N refrigerator models.

Wiring Diagrams

RN-420N (R-600a) Model Wiring Schematic

Electrical connections for RN-420N (R-600a) refrigerator models.

Main PCB Circuit Diagram

Control Board Component Layout and Connections

Detailed circuit diagram and component identification for the main PCB.

Control Panel Display and Operations

LED Indicators and Function Mapping

Mapping of LED displays to operational functions and error codes.

Temperature Regulation Functions

Adjusting Compartment Temperatures

How to adjust temperatures using buttons, sensors, and knobs.

Defrost Cycle Management

Defrost Mode Activation and Process

Conditions for defrost, general operation, and manual activation.

Defrost Cycle Initiation Logic

Automatic Defrost Start Conditions

Flowchart detailing conditions that trigger automatic defrost start.

Environmental and System Protection Functions

Low Ambient Temp, Compressor Protection, and Buzzer

Functions related to low ambient temp, compressor restart, and buzzer notifications.

Special Operational Modes

Time Reduction and Demonstration Mode Usage

How to use Time Reduction and Demonstration modes.

Sensor Control Adjustments

R-Sensor Control for Cooling Performance

Adjustments to R-sensor resistance for cooling performance.

Sensor Control Adjustments

Cooling Performance Tuning Options

Using MICOM voltage settings to prevent cooling issues.

Error Code Identification and Troubleshooting

All Error Codes (R1-F3) Display and Control

Details on all error codes, their display, and control actions.

Function Key Summary Table

Mode Entry, Termination, and Display Actions

Summary of key operations for various modes like defrost, pull down, error, and demo.

Component Disassembly Procedures

Front Panel and Door Switch Removal

Step-by-step guide to detach front panel and door switch.

Component Disassembly Procedures

RN-420N Door Switch and Interior Part Removal

Specifics for RN-420N door switch and general interior part removal.

Component Disassembly Procedures

Freezer Louver Assembly Removal

Steps for detaching the freezer louver assembly.

Door Reversal Procedure

Hinge and Switch Relocation for Reversal

Steps to reverse the door opening direction by moving hinges and switches.

R-600a Refrigerant Handling and Tools

Safety Precautions and Required Tools

Essential safety guidelines and tools for working with R-600a refrigerant.

Refrigerant Charging Process Overview

Stages of Refrigerant Charging

Summary of the main steps involved in charging the refrigerant.

Detailed Refrigerant Charging Steps

Hose Connection and Refrigerant Discharge

Procedures for connecting hoses and discharging refrigerant safely.

Detailed Refrigerant Charging Steps

Refrigerant Removal and Component Exchange

Steps for removing residual refrigerant and replacing the compressor/dryer.

Refrigerant Charging Operations and Checks

Welding, Connecting Lines, and Vacuuming

Welding, connecting gauges, and performing vacuum operations.

Refrigerant Charging Operations and Checks

Adjusting Charge, Leak Test, and Finalizing

Setting charge, testing for leaks, and completing the service.

Parts Lists

Cabinet, Evaporator, Compressor Compartment Parts

Detailed list of parts for the main assemblies.

Parts Lists

Refrigerator and Freezer Compartment Parts

Inventory of components within the main refrigerator and freezer sections.

Parts Lists

Door Assembly Part List

A comprehensive list of parts for the refrigerator and freezer doors.

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