Daewoo ERF-310, ERF-340, ERF-370 Service Manual

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Page 1

C O N T E N T S

1. Model 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. Component dissassembly pictures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

9. Component specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

10. Explode drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

11. Part lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

12. PCB control functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

13. Main PCB diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

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1. SPECIFICAT I O N S

1. Specifications

Model Name ERF-310 ERF-340 ERF-370

Division M A M A M A

Refrigerant(R134a) 150g <– <– <– 160g <–

Cooling system Fan cooling convection

Refrigration system Air forced convection

Defrost system Fin evaporator forced

Defrost operation Automatic start and stop

Cold control Dialing Button Dialing Button Dialing Button

Gross Freezer 93 <– 93 <– 112 <–

Capacity Refrigerator 218 <– 248 <– 251 <–

(l.) Total 311 <– 341 <– 363 <–

External Height 1780 <– 1911 <– 2000 <–

Dimension Width 600 <– <– <– <– <–

(mm) Depth 618 <– <– <– <– <–

Net weight (Kg) 69 <– 75 <– 79 <–

Energy class C grade

Power consumption (kWh/24h) 1 . 4 5 1 . 4 8 1 . 5 1 . 5 4 1 . 5 8 1 . 6 2

Freezing capacity (kg/24h) 5 6 . 5 5 6 . 5 6 7 . 5

Autonomy (F room) 12 h

Rated input 120 125 120 125 130 135

Lamp rated input (W) 15

Rated voltage AC 230/50 Hz

Note) A: Electronic control type

M: Manual control type

2. Types of the approved safety standards

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2. EXTERNAL D R AW I N G S

1. ERF-310M, 340M, 370M

2. ERF-310A, 340A, 370A

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3. WIRING DIAGRAMS

1. ERF-310M, 340M, 370M

2. ERF-310A, 340A, 370A

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4. NAME OF

1. ERF-310M, 340M, 370M

1. Removable shelf (ERF-310 series: 2 shelves and

ERF-340,370 series: 3 shelves), glass or crystal clear plastic depending on model.

2. Light.

3. Multi air-flow duct.

4. Refrigerator and freezer temperature control

knob.

5. Low temperature compartments.

6. Vegetable bin. Two bins or one bin; in case of

one bin item (15) won´t be applied depending on model.

7. Rating plate. It is attached in the refrigerator compartment on the left-hand side next to the vegetable bins.

8. Ice cube tray.

9. Compartment for storing and freezing.

10. Butter pocket.

11. Removable pocket (for egg tray)

12. Egg tray.

13. Removable pocket (not in ERF-310M)

14. Bottle pocket.

Pocket assembled with plastic bottle fixture (“A” type) or with metal bar (“B” type) depending on model.

15. R door pocket (depending on model).

16. Adjustable feet.

2. ERF-310A, 340A, 370A

1. Removable shelf (ERF-310 series: 2 shelves and

ERF-340,370 series: 3 shelves), glass or crystal clear plastic (depending on model).

2. Light.

3. Multi air-flow duct.

4. Refrigerator temperature control.

5. Low temperature compartments.

6. Vegetable bin.

Two bins or one bin; with one bin, item (16) will not be applied (depending on model).

7. Rating plate. Positioned in the refrigerator compartment on the left-hand side next to the vegetable bins.

8. Ice cube tray.

9. Compartment for storing and freezing.

10. Freezer temperature control.

11. Butter pocket.

12. Removable pocket (for egg tray)

13. Egg tray.

14. Removable pocket (not in ERF-310A).

15. Bottle pocket.

Pocket assembled with plastic bottle fixture (“A” type) or with metal bar (“B” type) depending on model.

16. R door pocket (depending on model).

17. Adjustable feet.

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5. AIR FLOW DIA -

Refrigerator room

Do not place frozen food near the duct If may freezze due to low temperature

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

Suitable in storing fruits or vegetable Wrapping can prevent from dryness

Freezer room

Do not put it any bottle such as beer or beverage because it can be frozen or broken

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6. REFRIGERANT CYCLE DIA -

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7. MACHINE ROOM VIEW A N D

NO PART NAME NO PART NAME NO PART NAME

1 ASS´Y BOX POWER 9 CASE VAPORI 17 ABSORBER VAPORI CASE

2 BASE COMP. AS 10 HARNESS EARTH 18 COMPRESSOR

3 ASS´Y WI-CON 11 PIPE CHARGE 19 SCREW MACHINE

4 SUCTION PIPE AS 12 HOT PIPE 20 SPECIAL SCREW C.

5 DRYER AS 13 PIPE SUCTION CONN 21 SPECIAL WASHER

6 BASE CAB. 14 CONN. B 22 ABSORBER PIPE B

7 COVER RELAY BOX 15 ABSORBER COMP. 23 ABSORBER PIPE C

8 BAND RELAY 16 FIXTURE COMP.

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8. COMPONENTS DISASSEMBLY P I C -

1. Control Box

1. ERF-310A, 340A, 370A

1) Remove 2 fixing screws

2) Pull forward and down Control Box

3) Detach Hall Pcb harness

2. Hall Pcb

1. ERF-310A, 340A, 370A

1) Remove knob control fixing screw Take out knob control

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2) Remove flap link fixing screw Take out flap link

3) Remove Hall Pcb As by pressing the fixture

ribs with the fingers

Components disassembly pictures

3. LOUVER F-A

1. ERF-310A, 340A, 370A, 310M, 340M, 370M

1) Remove 2 fixing screws

2) Remove Louver F A with hand

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Components disassembly pictures

4. Louver F-B

1. ERF-310A, 340A, 370A, 310M, 340M, 370M

1) Detach the harness by pressing the housing

with the fingers

2) Remove 2 fixing screws

3) Take out Louver F B by hand

5. Fan Motor

1. ERF-310A, 340A, 370A, 310M, 340M, 370M

1) Remove a fixing screw

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2) Take out Fan Motor by pressing the housing

6. Evaporator

1. ERF-310A, 340A, 370A, 310M, 340M, 370M

Components disassembly pictures

1) Detach Fuse Temp and Defrost Heater harness

using a flat screwdriver.

2) Detach Swich Bi-Metal (M-type) or D-sensor

(A-type) harness by pressing the housing with the fingers

3) Remove 2 welded points

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Components disassembly pictures

4) Remove 2 evaporator fixing screws

5) Extract evaporator forward with minimising the

pipe deformation after grasping the both sides of evaporator and pulling accumulator slighty forward

7. Defrost Heater

1. ERF-310A, 340A, 370A, 310M, 340M, 370M

1) Remove the cable tie

2) Bend 2 small aluminium fixture ribs with

a screwdriver

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3) Bend the big aluminium fixture rib by hand

4) Take out Defrost Heater

Components disassembly pictures

8. Fuse Temp

1. ERF-310A, 340A, 370A, 310M, 340M, 370M

1) Open the rib with a screwdriver and

take out Fuse Temp

9. D-Sensor

1. ERF-310A, 340A, 370A

1) Open the rib with the hand and take out D-Sensor

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Components disassembly pictures

10. Switch Bi-Metal

1. ERF-310M, 340M, 370M

1) Remove fixing screw with a screwdriver

11. Control Panel

1. ERF-310A, 340A, 370A

1) Remove 2 fixing screws

2) Take out panel Control by pulling it up and forward

3) Detach F Pcb Harness by pulling it forward

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4) Detach Switch Lamp Harness by pressing the

housing with the fingers

5) Remove 3 fixing screws to take out F Pcb

Components disassembly pictures

6) Remove 3 front and 2 upper screws to take out

Base Control Panel

7) Cut cable tie

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Components disassembly pictures

8) Detach Main Pcb Harness by pulling forward

all the housings

9) Take out Main Pcb

10) Remove 2 screws to take Down Trans out

2. ERF-310M, 340M, 370M

1) Remove 2 fixing screws

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2) Take out Panel Control by pulling it up and forward

and detach Switch Lamp harness by pressing the housing with fingers

12. Door Switch

1. ERF-310A, 340A, 370A, 310M, 340M, 370M

Components disassembly pictures

1) Remove the door switch sliding by its guide

13. Gasket

1. ERF-310A, 340A, 370A, 310M, 340M, 370M

1) Take off the gasket as shown

2) Fix the new one

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Components disassembly pictures

14. Cover Multi Duct

1. ERF-310A, 340A, 370A, 310M, 340M, 370M

1) Remove the Window by pushing lower part upward

and pulling forward

2) To replace the lamp unscrew it, if it is out of order

3) Remove 3 fixing screws

4) Pull forward with instant force

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5) Remove the Socket Lamp harness by pressing the housing with fingers

6) Remove Thermostat (M-type) or R-Sensor (A-type) harness by pressing the rib with a screwdriver

Components disassembly pictures

7) Remove the aluminium tape

8) Remove Insulator Multi Duct

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Components disassembly pictures

15. Socket Lamp

1. ERF-310A, 340A, 370A, 310M,

340M, 370M

1) Remove harness housing by pulling back

2) Remove 2 fixing screws with a screwdriver

16. R-Sensor

1. ERF-310A, 340A, 370A

1) Take out R-sensor

17. Thermostat

1. ERF-310M, 340M, 370M

1) Take out temperature Knob Control Switch by a flat screwdriver

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2) Remove special nut by unscrewing it

3) Take out thermostat

Components disassembly pictures

18. Box Power

1. ERF-310A, 340A, 370A

1) Unscrew Box Power with special tool. To take it pull down and then forward. * It must be handled by authorized technicians

2) Take out harness with a screwdriver

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Components disassembly pictures

3) Take out Relay band to remove relay cover

4) Detach PTC and OLP housings with fingers

5) Remove earth harness fixing screws with a screwdriver

6) Unscrew Relay Harness from Relay Box

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7) Take out Relay Harness and earth harness from their housings

8) Cut Condenser fixing cable tie and take out condenser

Components disassembly pictures

9) Detach OLP and PTC housings from Relay harness

10) Detach Relay harness from Condenser

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Components disassembly pictures

2. ERF-310M, 340M, 370M

1) Unscrew Box Power. To take it out pull down and then forward * It must be handled by authorized technicians

2) Take out harness with a screwdriver

3) Take aut Relay Band to remove Relay cover

4) Detach PTC and OLP housings with fingers

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5) Remove earth harness fixing screws with a screwdriver

6) Unscrew Relay Harness from Relay Box

Components disassembly pictures

7) Take out D-Timer fixing screw

8) Take out Relay Harness and earth harness from their housings

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Components disassembly pictures

9) Detach power Cord harness by pressing fixture housing with the fingers

10) Cut Condenser fixing cable tie

11) Take out D-Timer and Condenser

12) Detach OLP and PTC housings from Relay harness

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13) Detach D-Timer housings from Relay harness

14) Detach Relay harness from Condenser

Components disassembly pictures

19. Compressor

1. ERF-310A, 340A, 370A, 310M,

340M, 370M

1) Remove 2 welded points

2) Take out the four compressor fixture with a flat screwdriver

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Components disassembly pictures

3) Take out compressor

20. Reverse doors

1. ERF-310A, 340A, 370A, 310M, 340M, 370M

1) Remove 2 screws to take out Medium Hinge

2) Take out freezer and refrigerator doors

at the same time

3) Remove Handle fixing screws and change them

from one door to the other

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4) Take out Cap door bushings and change them

to the other side of the door

5) Take out Cap handles and changes to the other

side of the door

Components disassembly pictures

6) Take out Cover door caps and move them from

one door to the other

7) Take out cap screw hole and move to the

other side

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Components disassembly pictures

8) Take out Cap screw and move to the other side

9) Take out Top and Under Hinges with a screwdriver and change them to the other side. Take out Cap

Control Panel and move to the other side

10) Assembly Freezer door in the Under hinge and put the Medium hinge without screwing it

11) Assembly Refrigerator door; First the Top hinge and then the Medium hinge. After this screw the Medium hinge

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9. COMPONENTS SPECIFICA -

1. COMPRESSOR

ERF-310A/M ERF-340A/M ERF-370A/M Remarks

Part name HPL25YG1-5 <– HPL27YG1-5

Part code 39561125R51 <– 39561127R51

Rated voltage 220-240V 50Hz <– <–

Starting type RSIR <– <–

Refrigerant R134 a

2. RELAY ASSEMBL Y

2.1 PTC

ERF-310A/M ERF-340A/M ERF-370A/M Remarks

Part name PTH490D-AS330 <– <–

Part code 3817907000 <– <–

2.2 OLP

ERF-310A/M ERF-340A/M ERF-370A/M Remarks

Part name 4TM213NHBYY <– 4TM265NHBYY

Part code 3817911200 <– 3817911300

3. RUNNING CAPACITOR

ERF-310A/M ERF-340A/M ERF-370A/M Remarks

Part name MA80040040 <– MA80050040

Specifications 4uF 400VAC <– 5uF 400VAC

Part code 3016400800 <– 3016400810

4. AS MOTOR FAN

ERF-310A/M ERF-340A/M ERF-370A/M Remarks

Part name IS-23211DWBFH <– <–

Specifications 2400RPM <– <–

Part code 3015903700 <– <–

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Component specifi -

5. HEATER D AS

ERF-310A/M ERF-340A/M ERF-370A/M Remarks

Part RICA RS6 <– <–

Name CONSONI 16 <– <–

Specifications 230V 230W <– <–

Part code 3012803600 <– <–

6. LAMP

ERF-310A/M ERF-340A/M ERF-370A/M Remarks

Type Pygmy <– <–

Specifications 230V 15W <– <–

Part code 3013600700 <– <–

7. SWITCH LAMP

ERF-310A/M ERF-340A/M ERF-370A/M Remarks

Part name 1051 <– <–

Specifications 250V 0.25A <– <–

Part code 3018111500 <– <–

8. SOCKET LAMP AS

ERF-310A/M ERF-340A/M ERF-370A/M Remarks

Part name 1058 <– <–

Specifications 250V 2A <– <–

Part code 3017903100 <– <–

9. FUSE TEMPERATURE

ERF-310A/M ERF-340A/M ERF-370A/M Remarks

Part name SF76E <– <–

Specifications 250V 15(10)A <– <– 77ºC

Part code 3017200700 <– <–

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10. SWITCH BI-METAL

ERF-310M ERF-340M ERF-370M Remarks

Part name 261N <– <–

Specifications 250V 10(3)A <– <–

Part code 3018115600 <– <–

11. SWITCH D TIMER

ERF-310M ERF-340M ERF-370M Remarks

Part name TMDE807UC1 <– <–

Specifications 9h 37 min <– <–

Part code 3018115700 <– <–

12. THERMOST AT

Component specifi -

ERF-310M ERF-340M ERF-370M Remarks

Part name K50-P1530 <– <–

Specifications 250V 6A <– <–

Part code 3018300300 <– <–

13. DOWN TRANS AS

ERF-310A ERF-340A ERF-370A Remarks

Part name ERF-310 <– <–

Specifications 230V / 50Hz <– <–

Part code 5EPK041009 <– <–

14. SENSOR R AS

ERF-310A ERF-340A ERF-370A Remarks

Part name TH310G34GBNR <– <–

Specifications 30 K (AT 0ºC) <– <–

Part code 3014801800 <– <–

15. SENSOR D AS

ERF-310A ERF-340A ERF-370A Remarks

Part name TH310G34GBNR <– <–

Specifications 30 K (AT 0ºC) <– <–

Part code 3014801700 <– <–

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10. EXPLODE DRA -

1. ERF-310M, ERF-340M, ERF-370M

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Explode drawings

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Explode drawings

2. ERF-310A, ERF-340A, ERF-370A

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Explode drawings

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11. PA RT LIST

1. Parts list (M TYPE)

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Part List

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Part List

2. Parts list (A TYPE)

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Part List

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12. PCB CONTROL F U N C -

PCB SERVICE MANUAL OF ELECTRONIC CONTROL TYPE

Model: ERF-310A/340A/370A

1. How to use the panel

NO CONTROL FUNCTION CONTENTS

1. Initial Operation 1) In the Initial Operation, the Temperature of Refrigerator set MID Position.

2) Freezer and Refrigerator LED is ON with Red color.

3) Vacation or Super Freezing LED depends on Position of Freezer Control knob.

2. Panel Display 1) VAC ON: When the Control Knob in the freezer is locationed Vacation position.

2) SUPER ON: When the Control knob in the freezer is locationed Freezing position.

3) FREEZER LED GREEN ON: When the freezer temp. is OK (less than -5 deg at D sensor) RED ON: When the freezer temp. is not good.

NG condition (1 OR 2) 1- More than -5 deg at D-sensor when comp. off 2- More than -5 deg when comp is running for 120 min.

cf. ERROR DISPLAY

RED LED ON/OFF one times: D1 ERROR

It is D sensor error for open or short

RED LED ON/OFF two times: D2 ERROR

Defrost Error is ocurred that heater off by timer for 80 min.

4) REFRIGERATOR LED GREEN ON: When the refrigerator temp. is OK, (-7˜10 deg) RED ON : When the refrigerator temp. is not good.

NG condition (1 and 2) 1- More than 10 deg OR Less than -7 deg at R-sensor 2- More than 120 min.

cf. ERROR DISPLAY

RED LED ON/OFF one times: R1 ERROR

It is R sensor error for open or short

5) LOW ON: When the comp is controled by Low on/off condition

6) MID ON: When the comp is controled by Mid on/off condition

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Pcb Control Functions

NO CONTROL FUNCTION CONTENTS

2. Panel Display 7) HIGH ON: When the comp is controled by High on/off condition. cf. LOW / MID / HIGH LED ALL ON: This is Continuty MODE that Comp/ Fan is ON without Sensor temp.

3. Refrigerator Temperature 1) Temperature can be controled by 3 steps with the Refrigerator

Control temperature button.

LOW MID HIGH LOW

2) Refrigerator Control ON/OFF temperature 1- MID OFF point: -2 deg 2- ON/ OFF DIFF: 4 deg 3- STEP DIFF: 3 deg

3) Delay time of Fan is 1 MIN after compressor on/off

4. Determination of Defrost 1) Detemination of Defrost mode 1- Accumulated running time of compressor 2- Accumulated Open Times of R-door 3- Total time (On time of compressor + Off time of compressor)

2) Starting condition of Defrost mode I. When Accumulated Running Time of compressor (1) is 10 hours II. When Accumulated Open Times of R-door (2) is more than 3 times III. Check After (I) condition, if the (II) condition is more than 3 times then Star Defrost mode. I V. When Accumulated Running Time of compressor (1) is 15 hours, Star Defrost mode. V. Finally, when Total time (3) is more than 60 hours, Star Defrost mode.

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Pcb Control Functions

NO CONTROL FUNCTION CONTENTS

5. Flow chart for Determination of Defrost

6. Defrost Mode • General Defrost

1) START: By determination defrost condition

start 10 11 12 13 14 15

2) FLOW

H E AT E R PA U S E ( 4 m i n . ) FAN DELAY(4 min.) CONTROL

1- HEATER

*On - When defrost condition mode is started. *Off - When D-sensor is more than 10 deg.

If D1 ERROR is existance, Heater off by Time

* LIMIT TIME -80min (D2 ERROR) Case of Heater/Temp Fuse Open

If D1 ERROR is existance, Heater off by 30 min. * HTR 30 SEC ON: To check DEFROST CURRENT (HEATER) in the mass production line

2- PAUSE

* Time - 4 min. * All devices are off

3- FAN DELAY

* Time - 4 min. * Only compressor is on in the R-sensor on condition

Accumulated running time of compressor

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Pcb Control Functions

Display contents LED on/off Output

D1 ERROR D2 ERROR

R1 ERROR

NO CONTROL FUNCTION CONTENTS

6. Defrost Mode • Forced Defrost

1) START: Temp Control SW is pushed for 5 sec continuosly

2) FLOW 1- Buzzer for 1 sec.

2. Same of the general Defrost Flow

7. Initial Defrost 1) When Power is on, Check the D-SENSOR Temp.

2) Start Condition: Less than 3.5 deg for D-SENSOR

8. COMP Restart prevent 1) The COMP. cannot be on within 6min. after COMP off.

2) During Pre-cool step in defrost mode. 6 min. dellay is unavailable

9. Alarm function 1) DOOR OPEN: 3 sec. in times every minute

2) TEMP SW: When it is clicked

3) POWER ON

4) FORCED DEFROST

5) FAST TIME SW

10. Control in R1 Error * In R SENSOR Open/Short error, Compress/Fan are controled by time as following

Comp/Fan ON TIME: 20 min. Comp/Fan OFF TIME: 30 min.

11. Error Code 1) D1 Error

* Display: FREEZER RED LED on/off one times. * Condition: It is occured when D sensor is open or short.

2) D2 Error

* Display: FREEZER RED LED on/off two times. * Condition: D2 Error is occured that heater off by timer for 80 min.

3) R1 Error

* Display: REFRIGERATOR RED LED on/off one times. * Condition: It is occured when R sensor is open or short

12. OPTION Protection of OVER-COOL in CRISP

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13. MAIN PCB DIA -

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