Daewoo ERF-331, ERFf-331, ERF-361, ERF-391, ERF-411 Service Manual

C O N T E N T S

1. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.2 Types of the approved safety standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2. External drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

3. Wiring diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

4. Name of parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

5. Air flow diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

6. Refrigerant cycle diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

7. Machine room view and part list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

8. Components disassembly pictures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

9. Components specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

10. Explode drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

11. Part lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

12. PCB control functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35

13. Main PCB diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

14. Trouble Shooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43

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1. SPECIFICATIONS

1. Specifications

Model name ERF-331 ERF-361 ERF-391 ERF-411
Division M A M A M A M

Refrigerant R-134a 80gr 90gr 90gr 90gr 90gr 90gr 90gr
Blowing agent C-PENTANE
Cooling system Fan cool system
Defrost system Automatic start & Automatic stop system
Compressor HPL25YG1-5
Rated voltage (w) AC220~240V / 50Hz
Rated input (W) 135 135 135 135 135 135 135
Lamp rated input (W) 15 15 15 15 15 15 15
Gross Freezer 99 93 93 93 93 114 114
capacity Refrigerator 201 223 223 253 253 254 254
(liter) Total 300 316 316 346 346 368 368
External Height 1706 1780 1780 1911 1911 2000 2000
dimension Width 596 600 600 600 600 600 600
(mm) Depth 624 618 618 618 618 618 618
Energy kwh/24h 1,26 1,29 1,28 1,30 1,29 1,33 1,32
consumption class B B B B B B B
Freezing capacity(kg/24h) 5.0 5.0 5.0 5.0 5.0 5.0 5.0
Star rating * *** * *** * *** * *** * *** * *** * ***
Climate class N N N N N N N

Net weight (kg) 61 69 69 75 75 79 79

Note) A : Electronic control type

M: Manual control type

1.2. Types of the approved safety standards

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2. EXTERNAL DRAWINGS

1. ERF-331M

2. ERF-361A(M), 391A(M), 411A(M)

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3. WIRING DIAGRAMS

1. ERF-331M

2. ERF-361M, 391M, 411M

3. ERF-361A, 391A, 411A

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4. NAME OF PARTS

1. ERF-331M

1. Shelves (The material of shelf can be changed

by model).
ERF-331, 361 series: 2 shelves.
ERF-391, 411 series: 3 shelves

2. Cover vegetable case (Tne material of shelf can
be changed by model).

3. Interior light for refrigerator compartment.

4. Multi air flow duct.

5. Refrigerator & freezer temperature control

knob.

6. Low temperature compartments (only ERF­411A series).

7. Vegetable case. 1 box type or 2 boxes type
(For the case of 1 box type, the Part (15) must
be deleted).

8. Rating plate. It‘s attached in the refrigerator
compartment on the left-hand side next to the
vegetable case.

9. Ice cube tray.

10. Case for storing & freezing.

11. Butter pocket.

12. Egg pocket.

13. Egg tray.

14. Bottle pocket.

15. R door pocket.

16. Adjustable feet.

2. ERF-361M, 391M, 411M 3. ERF-361A, 391A, 411A

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5. AIR FLOW DIAGRAM

Fresh food preserving case
(Chilled case)

Used for storing fish or
meat

Air circulation in the
freezer compartment

Cold air flow comes
out from the front
hole and comes into
the lower hole in
louver

Case vegetable

For storing fruits or
vegetables

* Standard Model

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6. REFRIGERANT CYCLE DIAGRAM

COMPRESSOR

PIPE CONN. B HOT PIPE WI-CON PIPE DRYER

SUCTION PIPE CONN. SUCTION PIPE EVAPORATOR

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CAPILLARY TUBE

7. MACHINE ROOM VIEW AND PART LIST

Nº PART NAME Nº PART NAME Nº PART NAME

A PIPE HOT 13-1 HARNESS RELAY AS 17 SCREW TRS 4X14
1 ABSORBER COMP. 13-1-1 HARNESS RELAY 18 SPECIAL WASHER R/C
2 COMPRESSOR 13-1-2 CAPACITOR RUN AS 19 SPECIAL NUT R/C
3 FIXTURE COMP. 13-1-3 CABLE TIE 20 SPECIAL WASHER
4 EVAPORATOR AS 13-2 BOX RELAY 21 SPECIAL MASHINE
5 PIPE Wi-CON AS 13-3 CABLE CLAMP 22 HARNESS EARTH
6 SPECIAL SCREW E 13-4 SCREW TAPPING 23 SPECIAL WASHER
7 PIPE CONN B 13-5 SWITCH P RELAY PTC 24 SCREW MASHINE
8 PIPE CHARGE 13-6 SWITCH P RELAY OL 25 CASE VAPORI

9 PIPE SUC. CONN 13-7 CODE POWER AS
10 DRYER AS 13-8 COVER ME HOUSING
11 ABSORBER PIPE B 14 REALY COVER
12 ABSORBER PIPE C 15 BAND REALY
13 BOX RELAY AS 16 CAP DRAINER

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8. COMPONENTS DISASSEMBLY PICTURES

1- CONTROL PANEL

1) Remove two fixing screws.

2) Take out control panel by pulling it
Up and inserting a minus driver like
Picture shows, and move it left-right.

3) Detach F-Pcb harness, cable tie and
Switch lamp.

4) Remove 3 front and 2 upper screws
to take out base control panel.

5) Detach all connectors of M-Pcb and
take out it.

Components disassembly pictures

6) Remove 3 fixing screws to take out
F-Pcb.

7) Remove the door switch sliding by its
guide.

* REMARK: Disassembly system for M type models is

similar but with less components.

Components disassembly pictures

2- COVER MULTI-DUCT (FOR M TYPE

MODELS)

1) Remove the window by pushing lower
part upward and pulling forward.

2) Remove 3 fixing screws.

3) Pull forward with instant force.

4) Remove socket lamp harness and
timer/thermostat harness by pressing
the housing with the fingers.

Components disassembly pictures

5) Remove insulator multi-duct.

6) Unscrew defrost timer.

7) Disconnect defrost timer housing.

8) Take out temperature control switch
by a minus driver carefully.

Components disassembly pictures

9) Take out thermostat by unscrewing it.

* REMARK: Disassembly system for A type models is similar but with less components.

3 GASKET

1) Take out the gasket as shown.

2) Fix the new one.

4- FREEZER COMPARTMENT

1) Remove 2 fixing screws.