Daewoo FR-63-20 Service Manual

Service Manual

Refrigerator

Model: FR-631KD

DAEWOO ELECTRONICS CO., L TD.

http://svc.dwe.co.kr Feb. 2001

S/M No. : FR631KD010

SAFETY AND PRECAUTIONS

1) For starters, be sure to check any chances of the leakage of electricity

2) You could handle a part in the vicinity of electricity after unplugging

3) You should put on rubber glovers to prevent an electric shock on operation test

4) Make sure the rated current, voltage, capacity before using an instrument

5) Keep your wet hands away from the metal goods in the freezer compartment not to be frostbitten

6) Be careful not to let water to permeate the electric part in the machine room

7) with the door open during your working, you might be damaged by that door

8) You should give a tilt to the refrigerator for your safe after removing the breakable goods inside the refrigerator

9) You'd better use cotton gloves if you fix it up around the evaporator

TABLE OF CONTENTS

1. EXTERNAL VIEWS

1-1. EXTERNAL SIZE 1-2. NAME OF PARTS

2. SPECIFICATIONS

2-1. OUTLINE

3. OPERATION AND FUCTIONS

3-1. FUNCTION LIST 3-2. CIRCUIT & WIRE DIAGRAM 3-3. CIRCUIT

4. DIAGRAM

4-1. AIR FIOW DIAGRAM 4-2. REFRIGENT CYCLE DIAGRAM

5. EXPLODED VIEW AND PARTS LIST

5-1. TOTAL EXPLODED VIEW

5-2. TOTAL PARTS LIST....................................................................................................................................17

5-3. MACHINE ROOM EXPLODED VIEW AND PARTS LIST............................................................................21

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2 2

4 7 8

14 15

1. EXTERNAL VIEWS

1-1. EXTERNAL SIZE

1-2. NAME OF PARTS

1 Freezer Compartment Lamp 2 Shelf Ffreezer 3 Case Icing 4 Guide Icing 5 Ice Box 6 Refrigerator Compartment Lamp 7 Cover Cubic Duct 8 Fresh Case 9 Shelf Refrigerator 0 Deodorant q Cover Vegetable w Case Vegetable(B) e Case Vegetable(A) r Guide Vegetable t Front Grille y Adjustable Foot u Freezer Pocket Top i Freezer Pocket Under o Egg Pocket p Egg Tray a Guide Bottle s Bottle Pocket d Multi Pocket f Multi Pocket

38.4

5891084

1817.4

715.1

1.1

695732

820

17.3

590

820

810

2 3 4

7 8

9 0

q w e

r t

a s

DIVISION CONTENTS

MODEL NAME FR-631KD

FREEZER 138

USABLE CAPACITY (L) REFRIGERATOR 366

TOTAL 504 WIDTH 818

EXTERNAL DIMENSION( mm) DEPTH 752

HEIGHT 1818

REFRIGENT R134a 110

COOLING SYSTEM Fan Cooling System

COOLING &CONTROL SYSTEM DEFROST SYSTEM Fin Evaporator Forced

DEFORST CONTROL Automatic Start & Stop

NET WEIGHT (kg) 85

2. SPECIFICATIONS

2-1. OUTLINE

3. OPERATION AND FUCTIONS

3-1. Function List

1-1. Freezer T emperature

Input Control Object Contents Remark

1. Temperature Dial

2. F Thermostat

3. ON / OFF DIFF.

1. COMP

2. F-FAN

3. C-FAN

1. Freezer temperature is controlled by Freezer Temperature Dial. Weak Middle Strong

2. COMP, F-FAN and C-FAN are controlled by ON/OFF point of each

mode.

3. ON / OFF DIFF of Freezer : 4.0°C

(Middle OFF Point of Freezer : -12.0°C)

4. Strong / Weak Step DIFF of Freezer : 3.0°C

Weak Middle

STEP DIFF

-13.0˚C

-9.0˚C

-16.0˚C

-12.0˚C

-19.0˚C

OFF

-15.0˚C

Strong

Temperature

MODE

STEP DIFF

ON/OFF DIFF

Input Control Object Contents Remark

1. Temperature Dial

2. R Thermostat

3. ON / OFF DIFF

1. R-Fan 1. efrigerator temperature mode is set by the temperature dial. Weak Middle Strong

2. R-FAN is controlled by ON / OFF point of each mode.

3. ON / OFF DIFF of Refrigerator : 3.0°C (Middle OFF Point : 0.5°C) Strong / Weak STEP DIFF : 2°C * When R-Thermo reaches to R-FAN ON point, R-FAN turns ON ;

OFF point, R-FAN turns OFF.

Weak Middle

STEP DIFF

2.5˚C

5.5˚C

0.5˚C

3.5˚C

-1.5˚C

OFF

1.5˚C

Strong

Temperature

MODE

STEP DIFF

ON/OFF DIFF

1-2. Refrigerator(Fresh Food Compartment) T emperature

Input Control Object Contents Remark

1. Accumulated work time of COMP

1. Defrosting Mode

1. What to consider in determining the defrosting cycle ☞ Total (accumulated) work time of COMP

2. Conditions to start defrosting mode ☞ When total work time of COMP is more than 8, defrosting mode

starts unconditionally.

1-3. Defrosting Cycle

START 2 4 6 7

(Total Work Time of COMP)

Input Control Object Contents Remark

1.Defrosting Cycle

1. COMP

2. F-FAN

3. R-FAN

4. HEATER

1. Defrosting Mode

1) COMP, F/R/C-FAN: Control

1) If Bi-Metal is over 10, Heater turns Off.

2) COMP, F/R/C FAN: Off

1) Pause: 5 minutes

2) COMP, F/C-FAN: Off

3) R FAN: Control

1) COMP, F/R/C FAN: Control

2. Time Chart in Defrosting Mode

3. Output Control & Limit Time of Each Defrosting Mode

1) When defrosting starts COMP and F/R/C-FAN turn Off.

2) R Fan is ON/OFF Controlled in Pause mode.

1-4. Defrosting Mode

Control

Heater Defrosting

Pause

Control

Control Heate Defrosting Pause Control

COMP ON/OFF OFF OFF ON/OFF F-FAN ON/OFF OFF OFF ON/OFF R-FAN ON/OFF OFF ON ON/OFF

HEATER OFF ON OFF OFF

Limit Time – If Bi-metal≥10°C, 5min. –

HTR turns Off.

Comp

F-FAN

C-FAN

R-FAN

HTR

ON OFF ON ON

HTR ON

HTR Start HTR Finish

Pause Star

Pause Finish/ CONTROL

Input Control Object Contents Remark

1. Door Switch

1. F-FAN

2. R-FAN

- R-Fan turns Off when Door Switch turns On.

1. F/R-Fan movement by Door Switch

- When door is open, F-Fan and R-Fan turn Off simultaneously.

- When Door SW is closed and Fans turn On, R-Fan first turns on and

0.2second later F-Fan turns On.

2. Fan Delay and Priority

- R FAN ON ---> ON without delay

- F FAN ON ---> ON after 0.2second delay

- C FAN ON ---> ON after 0.1second delay

- In case of DC-Fan initial movement, R-Fan starts first, then C-Fan and F-Fan work due to the over current protection.

1-5. Time Delay of Electrical Parts

DOOR R F AN

F F AN

Open

Off

Time Delay : 0.2 second

FAN

Terms to be ON.

Off

0.1sec.

0.2sec.

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