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Daewoo ERF-310 Service Manual

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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
1

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Summary of Contents for Daewoo ERF-310

  • Page 1: Table Of Contents

    C O N T E N T S Model specifications ........3 1.2 Types of the approved safety standards .

  • Page 3: Types Of The Approved Safety Standards

    1. SPECIFICAT I O N S 1. Specifications Model Name ERF-310 ERF-340 ERF-370 Division 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...

  • Page 4: External Drawings

    2. EXTERNAL D R AW I N G S 1. ERF-310M, 340M, 370M 2. ERF-310A, 340A, 370A...

  • Page 5: Wiring Diagrams

    3. WIRING DIAGRAMS 1. ERF-310M, 340M, 370M 2. ERF-310A, 340A, 370A...
  • Page 6 4. NAME OF 1. ERF-310M, 340M, 370M Removable shelf (ERF-310 series: 2 shelves and ERF-340,370 series: 3 shelves), glass or crystal clear plastic depending on model. Light. Multi air-flow duct. Refrigerator and freezer temperature control knob. Low temperature compartments. Vegetable bin. Two bins or one bin; in case of one bin item (15) won´t be applied depending...
  • Page 7 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 Case vegetable Suitable in storing fruits or vegetable Wrapping can prevent from dryness Air circulation in the...
  • Page 8 6. REFRIGERANT CYCLE DIA -...
  • Page 9 7. MACHINE ROOM VIEW A N D PART NAME PART NAME PART NAME ASS´Y BOX POWER CASE VAPORI ABSORBER VAPORI CASE BASE COMP. AS HARNESS EARTH COMPRESSOR ASS´Y WI-CON PIPE CHARGE SCREW MACHINE SUCTION PIPE AS HOT PIPE SPECIAL SCREW C. DRYER AS PIPE SUCTION CONN SPECIAL WASHER...
  • Page 10 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...

  • Page 11: Component Dissassembly Pictures

    Components disassembly pictures 2) Remove flap link fixing screw Take out flap link 3) Remove Hall Pcb As by pressing the fixture ribs with the fingers 3. LOUVER F-A 1. ERF-310A, 340A, 370A, 310M, 340M, 370M 1) Remove 2 fixing screws 2) Remove Louver F A with hand...
  • Page 12 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.
  • Page 13 Components disassembly pictures 2) Take out Fan Motor by pressing the housing 6. Evaporator 1. ERF-310A, 340A, 370A, 310M, 340M, 370M 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...
  • Page 14 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...
  • Page 15 Components disassembly pictures 3) Bend the big aluminium fixture rib by hand 4) Take out Defrost Heater 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.
  • Page 16 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...
  • Page 17 Components disassembly pictures 4) Detach Switch Lamp Harness by pressing the housing with the fingers 5) Remove 3 fixing screws to take out F Pcb 6) Remove 3 front and 2 upper screws to take out Base Control Panel 7) Cut cable tie...
  • Page 18 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...
  • Page 19 Components disassembly pictures 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 1) Remove the door switch sliding by its guide 13.
  • Page 20 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...
  • Page 21 Components disassembly pictures 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 7) Remove the aluminium tape 8) Remove Insulator Multi Duct...
  • Page 22 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.
  • Page 23 Components disassembly pictures 2) Remove special nut by unscrewing it 3) Take out thermostat 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...
  • Page 24 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...
  • Page 25 Components disassembly pictures 7) Take out Relay Harness and earth harness from their housings 8) Cut Condenser fixing cable tie and take out condenser 9) Detach OLP and PTC housings from Relay harness 10) Detach Relay harness from Condenser...
  • Page 26 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...
  • Page 27 Components disassembly pictures 5) Remove earth harness fixing screws with a screwdriver 6) Unscrew Relay Harness from Relay Box 7) Take out D-Timer fixing screw 8) Take out Relay Harness and earth harness from their housings...
  • Page 28 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...
  • Page 29 Components disassembly pictures 13) Detach D-Timer housings from Relay harness 14) Detach Relay harness from Condenser 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...
  • Page 30 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...
  • Page 31 Components disassembly pictures 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 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...
  • Page 32 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;...
  • Page 33 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...
  • Page 34 Component specifi - 5. HEATER D AS ERF-310A/M ERF-340A/M ERF-370A/M Remarks Part RICA <– <– Name CONSONI <– <– Specifications 230V 230W <– <– Part code 3012803600 <– <– 6. LAMP ERF-310A/M ERF-340A/M ERF-370A/M Remarks Type Pygmy <– <– Specifications 230V 15W <–...
  • Page 35 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...
  • Page 36 10. EXPLODE DRA - 1. ERF-310M, ERF-340M, ERF-370M...

  • Page 37: Explode Drawings

    Explode drawings...
  • Page 38 Explode drawings 2. ERF-310A, ERF-340A, ERF-370A...
  • Page 39 Explode drawings...
  • Page 40 11. PA RT LIST 1. Parts list (M TYPE)

  • Page 41: Part Lists

    Part List...
  • Page 42 Part List 2. Parts list (A TYPE)
  • Page 43 Part List...
  • Page 44 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 Initial Operation In the Initial Operation, the Temperature of Refrigerator set MID Position. Freezer and Refrigerator LED is ON with Red color.

  • Page 45: Pcb Control Functions

    Pcb Control Functions NO CONTROL FUNCTION CONTENTS Panel Display 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. Refrigerator Temperature Temperature can be controled by 3 steps with the Refrigerator Control...
  • Page 46 Pcb Control Functions NO CONTROL FUNCTION CONTENTS Flow chart for Determination of Defrost Defrost Mode • General Defrost START: By determination defrost condition start Accumulated running time of compressor FLOW H E AT E R PA U S E ( 4 m i n . ) FAN DELAY(4 min.) CONTROL 1- HEATER...
  • Page 47 Pcb Control Functions NO CONTROL FUNCTION CONTENTS Defrost Mode • For ced Defrost START: Temp Control SW is pushed for 5 sec continuosly FLOW 1- Buzzer for 1 sec. 2. Same of the general Defrost Flow Initial Defrost When Power is on, Check the D-SENSOR Temp. Start Condition: Less than 3.5 deg for D-SENSOR COMP Restart prevent The COMP.
  • Page 48 13. MAIN PCB DIA -...

This manual is also suitable for:

Erf-340Erf-370