Daewoo FR-551NB Service Manual
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Daewoo FR-551NB Service Manual

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S/M No. : FR521NT010
Service Manual
Refrigerator
Model : FR-521NT/551NT
FR-521NB/551NB
DAEWOO ELECTRONICS CO., LTD
Nov. 1999
http : //svc.dwe.co.kr

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Summary of Contents for Daewoo FR-551NB

  • Page 1 S/M No. : FR521NT010 Service Manual Refrigerator Model : FR-521NT/551NT FR-521NB/551NB DAEWOO ELECTRONICS CO., LTD Nov. 1999 http : //svc.dwe.co.kr...

  • Page 2: Table Of Contents

    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.

  • Page 3: External Views

    EXTERNAL VIEWS 1. EXTERNAL SIZE FR-521NT/NB FR-551NT/NB...

  • Page 4: Name Of Parts

    EXTERNAL VIEWS 2. NAME OF PARTS Freezer Compartment Lamp Shell Freezer & Icr Tray Case Icing Temperature Controller ( Freezer Compartment ) Refrigerator Compartment Lamp Fresh Case Shell Refrigerator Cover Vegetable Case Vegetable Front Grille Adjustable Foot Freezer Pocket Egg Pocket Egg Tray Bottle Pocket Multi Pocket...

  • Page 5: Specifications

    SPECIFICATIONS 1. OUTLINE DIVISION CONTENTS MODEL NAME FR-521NT FR-551NT USABLE CAPACITY FREEZER REFRIGERATOR TOTAL EXTERNAL DIMENSION WIDTH 757mm 757mm DEPTH 750mm 750mm HEIGHT 1749mm 1809mm REFRIGENT 160g 160g R134a 130g 130g COOLING & CONTROL SYSTEM COOLING SYSTEM Fan Cooling System DEFROST SYSTEM Fin Evaporator Forced DEFORST CONTROL...
  • Page 6 SPECIFICATIONS 2) RELAY REFRIGEANT VOLTAGE(V/HZ) 100/50,60 110/60 115,120/60 127/60 220/50 220/60 230/50 240/50 ASSY 276THBYY-52 181SHBYY-52 276THBYY-52 TYPENAME 3018119940 3018116610 3018119940 PART CODE RESIANCE PART CODE OVER LOAD OVER LOAD REFRIGERANT R134a VOLTAGE(V/HZ) 100/50,60 127/60 220/50 220/60 230/50 240/50 110/60 115,120/60 ASSY TYPE NAME...
  • Page 7 SPECIFICATIONS REFRIGERANT R134a VOLTAGE(V/HZ) 100/50,60 110/60 115,120/60 127/60 220/50 220/60 230/50 240/50 PART CODE 3816800400 3016401900 3016401900 RATED VOLTAE 300V 400V 400V RATED CAPACITANCE 5) F-FAN MOTER REFRIGERANT R12,R134a VOLTAGE(V/HZ) 100/50,60 110/60 115,120/60 127/60 220/50 220/60 230/50 240/50 TYPE NAME DL-2213DWFC PART CODE 3015907200...
  • Page 8 SPECIFICATIONS 10) MAIN PCB ASSEMBLY REFRIGERANT R12,R134a VOLTAGE(V/HZ) 100/50,60 110/60 115,120/60 127/60 220/50 220/60 230/50 240/50 TYPE NAME N808RT PART CODE 3014385070 3014385060 11) DRYER REFRIGERANT R134a SPEC (g) PART CODE 3016801000 3016801010 12) FUSE (PCB) REFRIGERANT R12,R134a VOLTAGE(V/HZ) 100/50,60 110/60 115,120/60 127/60...

  • Page 9: Power Cord

    SPECIFICATIONS 3. POWER CORD SHAPE OF CODE PART CODE DESCRIPTION REMARK 3011315000 CP-2PIN FOR EUROPEAN COUNTRY 401RA17200 CP-2PIN FOR OTHER COUNTRY 4006D17101 KP-30 FOR AMERICA & ELSALVADOR 401PD17101 KP-211 FOR JAPAN & TAIWAN 3011300801 BP-3PIN 3011303010 #267 FOR CHILE 3011315310 FOR ISRAEL FOR U.K, MIDDLE ASIA 3011303050...

  • Page 10: Door Color

    SPECIFICATIONS 4. DOOR COLOR 1) ASSEMBLY URETHAN FREEZER DOOR REFRIGERANT R134a Dull High-glossy High-glossy Dull High-glossy High-glossy COLOR TYPE Normal PCM Normal PCM lamina sheet Lamina sheet Bright PCM lamina sheet Lamina sheet Bright PCM PART CODE 3010075150 3010075170 2) ASSEMBLY URENTHAN REFRIGERATOR DOOR FR-521NT NON-KEY TYPE REFRIGERANT...

  • Page 11: Operation And Functions

    OPERATION AND FUNCTIONS CONTROL INPUT CONTROL CONTENTS REMARK FUNCTION OBJECTS Display F-PCB Custom LED Button :TEMP CONTROL But- 1. Normal State Initial State ; Both compartments’ Icons indicate Middle-mode (“1”, and “2” are lit.) 2. TEMP CONTROL Button Temperature Regulation of Freshfood Compartment Middle-right Icons are lit by pressing the button.
  • Page 12 OPERATION AND FUNCTIONS CONTROL INPUT CONTROL CONTENTS REMARK FUNCTION OBJECTS Defrosting 1. Total Run-time Defrosting 1. What to be considered in determing Defrosting Period Period of COMP Mode 1) Total Run-time of COMP : 6, 8, 10, 12, 14 hours 2.
  • Page 13 OPERATION AND FUNCTIONS CONTROL INPUT CONTROL CONTENTS REMARK FUNCTION OBJECTS Error Display 1. TEMP CUSTOM-LED 1.How to start ; open and close refrigerator door 3 times while pressing (Displayed on Control Button REF.SET Button and it starts after 3 seconds. C-LED of F- 2.
  • Page 14 OPERATION AND FUNCTIONS CONTROL INPUT CONTROL CONTENTS REMARK FUNCTION OBJECTS 4) Door Error Occurrence : when door-opening is sensed for more than 1 hours Control : deletion of Door SW sensing function Dissolution : it Door SW open-close is sensed, it ends by itself. Display dissolution : after Custom LED Display Mode (Door SW should be in normal state if Error Display Mode is to start.)
  • Page 15 OPERATION AND FUNCTIONS CONTROL INPUT CONTROL CONTENTS REMARK FUNCTION OBJECTS Initial 1. D-Sensor Defrosting COMP delay for 1. Defrosting mode starts when D-Sensor at initial power supply. Defrosting 2. Initial Power Mode 6min at initial ( It starts from Pre-cool ) Supply defrosting Explanation...

  • Page 16: Diagram

    DIAGRAM 1. WIRING DIAGRAM...

  • Page 17: Circuit Wiring Diagram

    DIAGRAM 2. CIRCUIT WIRING DIAGRAM...

  • Page 18: Air Flow Diagram

    DIAGRAM 3.AIR FLOW DIAGRAM...

  • Page 19: Refrigrant Cycle Diagram

    DIAGRAM 4. REFRIGRANT CYCLE DIAGRAM...

  • Page 20: Disassembly And Assembly

    DIASSEMBLY AND ASSEMBLY 1) FREEZER & REFRIGEATOR DOORS Insert flat type (-) screw driver between Hinge cover and Cabinet surface to remove the Cover ( Be careful not to break the hooks of Cover and not to damage the Cabinet surface. ) Remove 4 bolts with 10mm wrench.
  • Page 21 DIASSEMBLY AND ASSEMBLY 2) DOOR HANDLES Insert rectangular bent tool whose diameter is less than 4mm into the hole of Handle to remove the Handle Decorator. Pull out Handle Decorator from up to down. Be careful not to damage the surface of Handle. Once it is peeled or damaged, corrosion may occur from metal parts beneath the handle.
  • Page 22 DIASSEMBLY AND ASSEMBLY 3) FREEZER LOUVER Push smothly the locker of light bulb cover and Remove it Remove the screw cover on the top left using screw driver ( “-” type ). Loosen wire tie on the left. Remove the screw using driver. ( “+” type ) Remove the screw on the light bulb base.
  • Page 23 DIASSEMBLY AND ASSEMBLY Pull the housing by pressing the locker smoothly. Remove the louver. 4) REFRIGERTATOR CONTROL BOX Remove the light bulb cover by pushing the locker with screw driver. Remove the screws on the light bulb base.
  • Page 24 DIASSEMBLY AND ASSEMBLY 5) EXCHANGE OF TEMPERATURE FUSE Remove fuse fixing clip down left of evaporator Separate temperature fuse out of fixing clip. Pull out temperature fuse connector of 2 wires.
  • Page 25 DIASSEMBLY AND ASSEMBLY 6) EVAPORATOR Place any sheet on freezer compartment floor to protect it. Remove 2 screws left right of evaporator. Cut black gum out. Pull pipes about 50 mm forward. Disconnect pipes by unsoldering them.
  • Page 26 DIASSEMBLY AND ASSEMBLY 7) DEFROST HEATER Remove connector of gray wire on the top left. Remove connector of white wire on the top right. Remove defrosting sensor on the top right of evaporartor.
  • Page 27 DIASSEMBLY AND ASSEMBLY Pull evaporator forward slowly until defrosting heater appears. Be careful not to damage suction pipe and capillary pipe. Pull heater fixing rubbers forward. Straighten with screw driver left 2 hooks of aluminum plate, then right hooks are open of itself. 8) CUBIC DUCT Insert screw driver into the gap to pull out Be careful not to break the hook...
  • Page 28 DIASSEMBLY AND ASSEMBLY 9) SIDE LOUVER Pull louver forward slowly. Be careful not to damage sealing sponge stripes 10) FRONT CONTROL PANEL Place any sheet right of panel to protect surface of it. Insert small screw driver into the gap to lift panel windows up.
  • Page 29 DIASSEMBLY AND ASSEMBLY Remove connector. Remove screws on the back of panel. 11) COMPRESSOR Remove Machine-room Cover screws. Pull the cover up to remove. Remove P-Relay Band by pressing it up toward the Compressor. Remove Relay Assembly from Compressor. Cut out Service Pipe and tiny pipe of Dryer. Remove Compressor Pipes using soldering torch.
  • Page 30 DIASSEMBLY AND ASSEMBLY 12) WIRE-CONDENSOR & C-FAN Remove the 2 Case screws using cross type screw driver Remove Wir-condenser pipes using soldering torch. Cut out Dryer fixing cable. Turn the Drain Hose by 90degrees to remove. Press the Housing Locker down to remove it. Pull out Wire-condenser.
  • Page 31 DIASSEMBLY AND ASSEMBLY Remove the Bell-mouth fixing screw. Remove Bell-mouth by pulling them aside. Press the Motor Band down to remove it. Lift the Motor up to remove.

  • Page 32: Exploded View And Parts List

    EXPLODED VIEW AND PARTS LIST 1. TOTAL EXPLODED VIEW F ROOM FRP-440(FR-521NT) FRP-480(FR-551NT) DOOR 14-1 80-1 R ROOM 113 114 115 MECH ROOM...

  • Page 33: Total Parts List

    EXPLODED VIEW AND PARTS LIST 2. TOTAL PARTS LIST is a recommendable part for essential stock. PART CODE PART NAME PART DESCRIPTION QUANTITY REMARK 3010074930 ASSY CAB URT FRP-440 3010074940 ASSY CAB URT FRP-440(HCFC) 3010074830 ASSY CAB URT FRP-480 3010074940 ASSY CAB URT FRP-480(HCFC) 3012905400...
  • Page 34 EXPLODED VIEW AND PARTS LIST PART CODE PART NAME PART DESCRIPTION QUANTITY REMARK 3014426900 PLT WICON AS FLTT SW D4.76 3010102100 ABSORBER C MOT NR, FRB-5350NT 3012004400 FIXTURE C MOTR 3015906800 MOTOR C BLDC 12V 3011800400 3011200400 CLAMP FAN SUS304 7112401211 SCREW TAPPING T1 TRS 4...
  • Page 35 EXPLODED VIEW AND PARTS LIST PART CODE PART NAME PART DESCRIPTION QUANTITY REMARK 3012603400 HANDLE ICE BOX 3011445500 COVER ICE BOX GPPS 3010519600 BOX ICE HIPS 3018701300 DEO ANTI RETURN 3018700700 DEODORANT SHEET UNITRON 3011102501 CASE DEO A SWITCH DR 2 BUTTON/4 PIN REFER TO #7 3017903610...
  • Page 36 EXPLODED VIEW AND PARTS LIST PART CODE PART NAME PART DESCRIPTION QUANTITY REMARK 301117600 CASE EGG GPPS 3019011100 POCKET F GPPS 3012307330 GASKET F DR AS PVC, FRB-4870KT ASSY F DR FRB-440/480 REFER TO #9 3012610710 HANDLE F DR ABS + CR 7002501611 SCREW MACHINE TRS 5 x 16 MFZN...

  • Page 37: Machine Room Exploded View And Parts List

    EXPLOD-ED VIEW AND PARTS LIST 3. MACHINE ROOM EXPLODED VIEW AND PARTS LIST PART NAME PART NAME BASE CAB * B PIPE HOT SCREW TAPPING PIPE CONN A CORD POWER AS PIPE SUC CONN SCREW MACHINE PIPE SUCTION AS ABSORBER COMP BAND RELAY COMPRESSOR SWITCH P-RELAY AS...
  • Page 38 DAEWOO ELECTRONICS CO., LTD 686, AHYEON-DONG MAPO-GU SEOUL, KOREA C.P.O. BOX 8003 SEOUL, KOREA TELEX : DWELEC K28177-8 CABLE : “ DAEWOOELEC” E-mail : G7F00E@web.dwe.co.kr FAX : 82-32-510-7624 TEL: 82-32-510-7630 PRINTED DATE : SEP. 1999...

This manual is also suitable for:

Fr-551ntFr-521ntFr-521nb

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