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Daewoo FR-540N Service Manual

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Service Manual
Refrigerator
Model:FR-540N
Caution

: In this Manual, some parts can be changed for improving, their
performance without notice in the parts list. So, if you need the
latest parts information,please refer to PPL(Parts Price List) in
Service Information Center (http://svc.dwe.co.kr).
DAEWOO ELECTRONICS CO., LTD.
S/M No. : FR540NT010

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Summary of Contents for Daewoo FR-540N

  • Page 1 : In this Manual, some parts can be changed for improving, their performance without notice in the parts list. So, if you need the latest parts information,please refer to PPL(Parts Price List) in Service Information Center (http://svc.dwe.co.kr). DAEWOO ELECTRONICS CO., LTD.

  • Page 2: Table Of Contents

    CONTENTS 1. Specification -----------------------------------------------------------------------------------------------1 2. External view ----------------------------------------------------------------------------------------------2 3. Wire diagram ----------------------------------------------------------------------------------------------3 4. Name of parts----------------------------------------------------------------------------------------------4 5. Air flow diagram------------------------------------------------------------------------------------------5 6. Refrigerant cycle diagram -----------------------------------------------------------------------------7 7. Machine room view and part list--------------------------------------------------------------------8 8. Main components-----------------------------------------------------------------------------------------9 9. Door color specification -------------------------------------------------------------------------------13 10.

  • Page 3: Specification

    1. SPECIFICATION MODEL NAME FR-540N FR-540NT 200g 200g Refirgerant R134a 170g 170g Cooling System Fan Cooling Convection Refrigeration System Air Forced Convection Defrost System Fin Evaporator Forced Automatic Start & Stop Defrost Operation Cold Control Adjustable Button Freezer Refrigerator Capacity...

  • Page 4: External View

    2. EXTERNAL VIEW...

  • Page 5: Wire Diagram

    3. WIRE DIAGRAM R-F/M F-SENSOR OR X 2 BL X 2 COMMON D-SENSOR D-HTR COMP R1-SENSOR DR S/W F-F/M 1 3 4 R ROOM LAMP DR S/W P-RELAY M-PCB PLUG L/BL BL X 2 HARNESS 14PIN F-F/M GN/YW TEMP FUSE R-F/M F-PCB COMPRESSOR...

  • Page 6: Name Of Parts

    4. NAME OF PARTS 1. FR-540N 1 Freezer Lamp 2 Freezer Shelf 3 Case Icing 4 Guide Icing 5 Ice Box 6 Chilled Door 7 Chilled Case 8 Deodorant 9 Refrigerator Side Louver 10 Refrigerator Shelf 11 Cover Cubic Duct...

  • Page 7: Air Flow Diagram

    5. AIR FLOW DIAGRAM 1. FR-540N Freezer door pocket Do not put ice cream or frozen Freezer room food in freezer door pocket to Do not put any bottle such as store for a long term. Opening beer or beverage because it can...
  • Page 8 2. FR-540NT Freezer pocket Freezer Please don't put long term storing Please don't put bottles items such as ice cream etc. such as beer, beverage etc. It might be melted because of It might be broken -19ûC opening the door frequently. because of freezing.

  • Page 9: Refrigerant Cycle Diagram

    6. REFRIGERANT CYCLE DIAGRAM ACCUM SUC-PIPE COOLING PIPE...

  • Page 10: Machine Room View And Part List

    7. MACHINE ROOM VIEW AND PART LIST PART NAME PART NAME PART NAME BASE COMPRESSOR DRYER BIND WIRE COMPRESSOR PIPE CON (SUC) PLUG POWER AS ABSORBER COMPRESSOR VIBRATIONPROOF GUM SCREW MACHINE WASHER COMP. *T PIPE CON (AUX) PIPE CON (HOT) SWITCH P-RELAY AS HOSE DRAIN (B) TAPE OPP...

  • Page 11: Main Components

    8. MAIN COMPONENTS 1. COMPRESSOR Refrigerant Voltage 100V/50,60Hz 110V/60Hz 115, 120V/60Hz 127V/60Hz 220V/50Hz 220V/60Hz 230V/50Hz 240V/50Hz Comp. model BL25YE-3 BL25YE-1 PL28YE-6 PL25YE-4 PL28YE-6 Part code 3952125C30 3952125C10 3956128C60 3956128C40 3956128C60 Strating type RSCR RSCR RSCR Refrigerant R134a Voltage 100V/50,60Hz 110V/60Hz 115, 120V/60Hz 127V/60Hz 220V/50Hz...
  • Page 12 220V/60Hz 230V/50Hz 240V/50Hz Spec. 3211DWBFM 3211DWBFU 3211DWBFQ 3211DWBFE 3211DWBFS Part code 3011800850 3011801000 3010027220 3015902600 3011801030 7. DEFROST HEATER 1) FR-540N Refrigerant R12, R134a Voltage 100V/50,60Hz 110V/60Hz 115, 120V/60Hz 127V/60Hz 220V/50Hz 220V/60Hz 230V/50Hz 240V/50Hz Spec. 148W 148W Part code 3012801300...
  • Page 13 9. PCB TRANSFORMER 1) FR-540N Refrigerant R12, R134a Voltage 100V/50,60Hz 110V/60Hz 115, 120V/60Hz 127V/60Hz 220V/50Hz 220V/60Hz 230V/50Hz 240V/50Hz Part code 5EPK057700 5EPK057609 5EPK042000 5EPK057030 5EPK057630 2) FR-540NT Refrigerant R12, R134a Voltage 100V/50,60Hz 110V/60Hz 115, 120V/60Hz 127V/60Hz 220V/50Hz 220V/60Hz 230V/50Hz 240V/50Hz...
  • Page 14 POWER CORD SPECIFICATION SHAPE OF POWER CODE PART CODE DESCRIPTION REMARK 3011315000 CP-2PIN FOR EUROPEAN COUNTRY 401RA17200 CP-2PIN FOR OTHER COUNTRY 4006D17101 KP-30 FOR AMERICA 401PD17101 KP-211 FOR JAPAN & TAIWAN 3011300801 BP-3PIN 3011303010 #267 FOR CHILE 3011315310 FOR ISRAEL FOR U.K, MIDDLE ASIA 3011303050 BS-1363A...

  • Page 15: Door Color Specification

    9. DOOR COLOR SPECIFICATION 1. FR-540N 1. ASSEMBLY URETHAN FREEZER DOOR Refrigerant R134a Key type Dull lamina High glossy High glossy Dull lamina High glossy High glossy Normal PCM Normal PCM sheet lamina sheet bright PCM sheet lamina sheet bright PCM...
  • Page 16 COLOR TABLE 1. PCM type COLOR CHIP COLOR NAME P/WITH (WH069) '94 L/GRAY (GY158) '95 L/GRAY (GY259) '94 M/GRAY (GY331) '95 M/GRAY (GY335) '97 M/GRAY (GY267) M. D/GRAY (GY750) N/BLUE (BL718) MINT GREEN (GN206) '97 BEIGE (BE215)
  • Page 17 2. Lamina sheet type COLOR CHIP COLOR NAME P/WITH (WH069) '94 L/GRAY (GY158) '95 L/GRAY (GY259) '94 M/GRAY (GY331) '95 M/GRAY (GY335) '97 M/GRAY (GY267) M. D/GRAY (GY750) N/BLUE (BL718) MINT GREEN (GN206) S/GOLD G/GREEN...

  • Page 18: Exploded View And Parts List

    10. EXPLODED VIEW AND PARTS LIST 1. FR-540N 1. Exploded view...
  • Page 19 2. Parts list PART CODE PART NAME DESCRIPTION QUANTITY REMARK ASSY URT CAB 4018G57110 GUIDE DRN *O 3011408100 COVER HTR *U HEATER GLAS TUBE AS REFER TO # 10 3011408200 COVER HTR *T 4010G19010 FIXTURE DEFR HTR 3017000701 EVAPORATOR SAS 3014801201 SENSOR F D AS PTC-KD38-FD6 ABS TYPE...
  • Page 20 PART CODE PART NAME DESCRIPTION QUANTITY REMARK 3011410000 COVER M/PCB BOX AS 3015501200 WINDOW R DRYER AS REFER TO # 11 3012901400 HINGE *T AS ASSY URT *T DOOR REFER TO # 13 3017402202 LINER F DR ABS 1.4 x 785 x 1140 3012300600 GASKET F DR AS PVC-S...
  • Page 21 2. FR-540NT 1.Exploded view...
  • Page 22 2. Parts list  Caution : In this Service Manual, some parts can be changed for improving, their performance without notice in the parts list. So, if you need the latest parts information, please refer to PPL (Parts Price List) in Service Information Center (http://svc.dwe.co.kr) PART CODE PART NAME...
  • Page 23 PART CODE PART NAME DESCRIPTION QUANTITY REMARK 3011420010 COVER VEGTB BOX AS CV+F+KNOB+NAMP 3017804700 SHADE F 3010029791 CHILD DUCT AS 3014504600 PLT VEGTB BOX-DV 3018901902 LOUVER R SIDE *L AS ABS+CERAMIC 42-1 3018901911 LOUVER R SIDE *R AS ABS+CERAMIC 3014801001 R1 SENSOR AS NBM-K43-D12 PBN-43 3010507400...

  • Page 24: Electronic Function

    11. ELECTRONIC FUNCTION 1. FR-540N 1) How to use the panel • The temperature inside the freezer and refrigerator room is • The comp and fan in the refrigerating room controlled automatically according to the customer’s purpose operate for 40 min.
  • Page 25 2) Function table Control Control Contents Remark Function Objects Initial Time 1. In the initial operation, the temperature of FRZ. and REF. operation Temperature automatically set at 3/3. control 2. The clock is set at 12:00. QUICK FREEZER QUICK FRIDGE TIME FUZZY FREEZING...
  • Page 26 Control Control Contents Remark Function Objects 4. Time chart of each device. COMP F-FAN C-FAN 30" 5. COMP. on/off temperature (Temperature ˚C/Resistance kΩ) COMP. OFF -21/23.6 -21/23.6 -22/25.0 -23/26.4 -24/27.9 -25/29.6 COMP.ON -16/17.9 -16/17.9 -17/18.9 -18/20.0 -19/21.1 -20/22.3 Refrigerator R-fan 1.
  • Page 27 Control Control Contents Remark Function Objects Quick COMP. 1. If quick freezing button is pressed, the clock mode is changed freezing F-fan to quick freezing time mode. C-fan QUICK FREEZER QUICK FRIDGE TIME FUZZY FREEZING TEMP. FRIDGE. TEMP. FRZ. REF. FRESH 1 2 3 F 5 4...
  • Page 28 Control Control Contents Remark Function Objects 3. The bar LED is illuminated 3 times in a row. REF. REF. F 5 4 3 2 1 E. F F 5 4 3 2 1 E. F Quick mode ON After 30 min. REF.
  • Page 29 Control Control Contents Remark Function Objects Determination 1. Defrost function is started by the following 4 conditions. Condition 1 : Accumulated COMP. on time (MAX. and MIN. defrost time) Condition 2 : Accumulated door open time (different from the accumulated door open time in fuzzy function) Condition 3 : COMP.
  • Page 30 Control Control Contents Remark Function Objects Deciding defrosting period Is it min. accumulated COMP ON time? Is the percentage of operation, so far, above 80%? Is it max. accumulated COMP ON time? Is the resuting accumulated door open time, 10 min? Is the percentage of operation, so far, above 80%? Will it be min.
  • Page 31 Control Control Contents Remark Function Objects Device COMP. 1. Pressing the SW01 on M-PCB enables device test function. test F-fan 2. Pressing the SW01 proceeds the operation of device as function R-fan follows. Heater COMP. D-heater break F-fan R-fan return 3.
  • Page 32 Control Control Contents Remark Function Objects COMP. 1. The low cooling prevention function will be operating if the cooling R-fan temperature of R1-sensor or R2-sensor goes above 6˚C. prevent 2. Time chart function low cooling detection temp. (6˚C) R-FAN ON : ON R-FAN OFF : OFF...
  • Page 33 Control Control Contents Remark Function Objects 4. Sensor’s temperature indication is as follow. 1) R-sensor (when 1˚C) FRZ. REF. FRESH 1 2 3 5 4 3 2 1 E. F CLEAN 2) D-sensor (when -23˚C) FRZ. REF. FRESH 1 2 3 5 4 3 2 1 E.
  • Page 34 3) Self-diagnosis table Code Content Perception method Refrigerator operation state F-sensor - Short circuit - The refrigerator is run at 60% power with a malfunction 40 minute period. - Wire disconnection - When the refrigerator compartment is over frosted, the operation is forcibly stopped, then returns to a 40 minute period operation.
  • Page 35 4) Circuit and Wiring Diagram N 8 0 2 M-PCB CN06 F-PCB 26.7K F-SENSOR 1. The RESISTOR value which has not displayed time constant is 10K 1/4W. CE12 D-SENSOR CC11 2. The CERAMIC CONDENSOR which been displayed time constant is 0.01µF. R2.3 D03 D06 D05 D01 D02 SCAN A...
  • Page 36 N 8 0 3 CN06 F-PCB M-PCB F-SENSOR CE13 D-SENSOR CC15 D03 D06 D05 D01 D02 SCAN A CN07 CC10 CE04 26.7K CN01 CN08 SCAN B R1-SENSOR SW5 SW2 SW3 SW1 SW4 SCAN C CC20 R-TEMP. F-TEMP. NEURO CE05 CONTROL CONTROL FUZZY 30.1K...
  • Page 37 2. FR-540NT 1) How to use the panel • When the FUZZY button is pressed, both • When the quick freezing button is pressed, “BAR LED” are blinking in a row BAR LED of freezing is blinked 3 times in a •...
  • Page 38 2) Function table Control Control Contents Remark Function Objects Clook 1. The time is set at 12:00 in initial operation function TEMP QUICK QUICK FRZ. REF. FUZZY TIME SET FREEZING REFRIGERATION FUZZY SURROUND CLEAN 2. Time setting 1) When the temperature/time set button is pressed 3 times, Hour blinks.
  • Page 39 Control Control Contents Remark Function Objects 5. When the low cooling is detected, COMP. goes on regardless of F-sensor. 6. When the fridge temperature goes R-fan off point, COMP. is controlled by F-sensor and R-fan goes off. 7. Low cooling is detected by R1-sensor or R2-sensor, its cancellation can be done by R1-sensor only.

  • Page 40: Total

    Control Control Contents Remark Function Objects Fuzzy COMP. 1. When press the fuzzy button, predictable cooling of freezer R-fan and fridge room is started. F-fan TEMP QUICK QUICK FRZ. REF. FUZZY TIME SET FREEZING REFRIGERATION FUZZY SURROUND CLEAN 2. How to predict freezer and fridge room temperature. 1) Checking accumulated door open time every 2 hours.
  • Page 41 Control Control Contents Remark Function Objects 2. Description Start (COMP. on accumulation time) 1) It enters into the defrost mode at 15 hours unconditionally. 2) It enters into the defrost mode at 6, 9, 12 hours conditionally. 3) Flow chart of determination defrost mode. Start TOTAL Does the time elapse for 3 hours?
  • Page 42 Control Control Contents Remark Function Objects 4) If the F-sensor -27˚C even the time elapsed is less than 50 min., the Pre-cool step goes off. 2. D-heater+R-fan defrost 1) D-heater and R-fan are on. 2) When D-sensor is higher than 2˚C, R-fan goes off, and D- heater stays on contionously.
  • Page 43 Control Control Contents Remark Function Objects Electric Door S/W 1. F-fan on or off time is delayed, when COMP. is on or off. device COMP. delay F-fan COMP R-fan F-FAN 1MIN. 1MIN. 2. F-fan and R-fan on or off time is delayed, when door switch is on or off.
  • Page 44 Control Control Contents Remark Function Objects 2. The electric devices are off for 2 hours in delivery function. 3. The custom LED is on normally. Power COMP. 1. M-PCB reserves all functions for 3 hours after power failure. failure Clock 2.
  • Page 45 Control Control Contents Remark Function Objects R1 : Off point determination in R1-SENSOR normal operation R2 : Decreases off point determination J1 : If remove J1, the off point will be decreased. 2) Resistance value R1 : 31. 4 kΩ R2 : 2.15 kΩ...
  • Page 46 3) Self-diagnosis table Error Defect function Check method mode F-sensor - Compressor & F-fan is on for 24 minutes. - Compressor & F-fan is off for 16 minutes. R1-sensor - Regarded by R2-sensor. R2-sensor - Detecting weak cooling is impossible. D-sensor - Heater is on only for 35 minutes.
  • Page 47 4) Circuit and wiring diagram CN06 F-PCB M-PCB F-SENSOR D-SENSOR CE11 CC15 D01 D04 D02 D03 SCAN A CN07 CC19 CE04 CN01 CN08 ˚C 25.7K SCAN B open jump 3˚C R1-SENSOR SW1 SW4 SW2 SW3 31.4K 5˚C SCAN C Jump option 2.15K jump jump 7˚C...

This manual is also suitable for:

Fr-540nt

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