Daewoo FRN-U20IB series User Manual

Refrigerator
S/M No: RNU20IB001
- May, 2006
✔ Caution
: In this Manual, some parts can be changed for improving, their
performance without notice in the parts list. So, if you need the
latest parts information,please refer to PPL(Parts Price List) in
Service Information Center
FRN-U20IB*
FRS-U20IB*
FRN-U20DB
*
FRN-U20EB
*
FRS-U20DB
*
FRS-U20EB
*
FRN-U20FB
*
FRN-U20GB
*
FRS-U20FB
*
FRS-U20GB
*
FRU-577I~ FRU-547D/E~ FRU-547F/G~
Downloaded from Fridge-Manual.com Manuals

Daewoo FRN-U20IB series Specifications

General

Category	Refrigerator
Installation	Freestanding
Energy Star Certified	No
Door Hinge	Right
Reversible Doors	No
Climate Class	SN-T
Voltage	220-240 V
Frequency	50 Hz
Number of shelves/baskets refrigerator	3
Model	FRN-U20IB series

Summary

1. WARNINGS AND PRECAUTIONS FOR SAFETY

2. EXTERNAL VIEWS

2-2. Internal Parts Identification

2-3. Cold Air Circulation Flow

Illustrates the flow of cold air within the refrigerator compartments.

3. SPECIFICATION

3-1. Detailed Specifications

4. OPERATION AND FUNCTIONS

4-1. Display and Controls Overview

Explains the display and temperature control for basic and dispenser models.

4-2. Defrost Mode Operation

1. Defrosting Cycle Stages

Details the stages of the defrosting cycle: Pre-Cool, Heater, Pause, Fan-Delay.

4-3. Forced Defrosting Mode

1. A/S Defrosting Mode Procedure

4-4. Fan Voltage Control

4-9. R-Sensor ON/OFF Point Compensation

4-10. Error Display

4-10-1. Basic Model Error Display

Lists error codes and their corresponding LED displays for the basic model.

4-10-2. Dispenser Model Error Display

Lists error codes and their CLED displays for the dispenser model.

4-13. Automatic Icemaker - Dispenser Model

1. Flow of Ice Making Process

5. CIRCUIT OPERATION

5-1. Power Circuit Diagram

Shows power circuit diagrams for both basic and dispenser models.

5-2. Function of Each Sensor

- Dispenser Model Sensor Functions

5-3. Relay Function

- Basic Model Relay Function

- Dispenser Model Relay Function

5-4. Fan Function

1. Fan Circuit Diagrams

6. DIAGRAM

6-1. Wiring Diagram - Basic Model

6-1. Wiring Diagram - Dispenser Model

6-2. Circuit Diagram of Main PCB

- Basic Model Main PCB Circuit

8. HOW TO CHECK EACH PARTS

8-3. Dispenser Micro Switch Check

8-4. Dispenser Solenoid Valve Check

8-5. Main PCB Component Check

- Basic Model Main PCB Checks

- Dispenser Model Main PCB Checks

8-6. Ice Maker Component Check

9. TROUBLE DIAGNOSIS

9-1. Faulty Start Diagnosis

Flowchart for diagnosing start issues with no lights and F-PCB power off.

9-2. Freezer Compartment Troubleshooting

Flowchart for diagnosing freezing failures in the freezer compartment.

9-3. Refrigerator Compartment Troubleshooting

Flowchart for diagnosing refrigeration failures, dew, and excessive cooling.

9-4. Operation Noise Troubleshooting

10. COOLING CYCLE HEAVY REPAIR

10-1. Summary of Heavy Repair Processes

Provides a summary of heavy repair processes, contents, and tools.

10-2. Precautions During Heavy Repair

Lists precautions for tools, refrigerant removal, and welding during heavy repair.

10-3. Practical Work for Heavy Repair

Details practical work for refrigerant removal and nitrogen blowing welding.

10-4. Standard Regulations for Heavy Repair

Outlines standard regulations for heavy repair, focusing on safety and welding practices.

11. INSTALLATION GUIDE

11-1. Installation Preparation Steps

Covers preparation steps for installing the refrigerator, including dimensions and placement.

11-3. Refrigerator Leveling and Door Adjustment

Explains how to level the refrigerator and adjust doors for proper appearance and function.

11-4. Water Line Installation