Daewoo FR-420N, Service Manual

Page 1: ...RFP341C001 ...

Page 2: ...yer No RF 420N RN 420N 375 120 Total 242 242 332 332 90 90 Cooling Cycle Refrigerant Type Refrigerant Charge Evaporator Type Condenser Type Dryer Capillary Tube Blowing Agent Fan Cooling System Molecular Sieve xH 9 ID0 7 x T0 55 x L2320 AC 230V 50Hz 2400RPM 25W x 1EA Freezer Fan Motor Electric Part Weight 68 68 Refrigerator Lamp Condenser Fan Motor 1898 1898 0 095kg R 600a 0 040kg AC230V 160W Gros...

Page 3: ...nt Below is RF 420N model 1 6 2 3 4 5 7 9 11 10 8 1 Refrigerator Shelves 2 Lamp Window 3 Multi Duct 4 Basket Multiple option 5 Cover Vegetable Case 6 Vegetable Case 7 Feezer Case B 8 Freezer Case C 9 Dairy Pocket As 10 Refrigerator Pocket 11 Adjustable Foot 2 ...

Page 4: ...0N model 1 10 2 5 3 8 11 4 13 9 12 1 Capacitor Run 2 Power Cord 3 Suction Pipe As 4 Pipe Absorber 5 Box Relay As 6 Fixture Compress Washer 7 Pipe Connector B Compressor 6 7 8 Compressor Absorber 9 Dryer As 10 Pipe Wire Condensor As 11 Case vaporization As 12 Drain Hose 13 Compressor Cooling Fan 3 ...

Page 5: ...4 Refrigerant Cycle Welding Point Silver Welding Ag 30 3 Point SPECIFICATIONS Copper Welding Ag 5 6 Point 4 ...

Page 6: ...gerator Refrigeration function is weak in the initial time Please adjust temperature as above after using refrigerator for minimum 1 2 days SPECIFICATIONS Features are model dependent Below model is RF 420NT Refrigerator Dial Mode LOW 1 3 6 degree MID 3 0 3 degree HIGH 5 2 0 degree Vegetable compartment 1 5 degree Freezer Mode HIGH below 20 degree MID 18 20 degree LOW 16 18 degree 5 ...

Page 7: ...6 Wiring Diagram 6 1 For RF 420N Models SPECIFICATIONS 6 ...

Page 8: ...6 Wiring Diagram 6 2 For RN 420N R 600a Models SPECIFICATIONS 7 ...

Page 9: ...6 Main PCB Circuit Diagram Only for RF 420N and RN 420N Models SPECIFICATIONS 8 ...

Page 10: ...ously and TEMP button 5 times The Priorities of Error R SENSOR RT SENSOR DR S W CYCLE DEFROST 3 flickeringly 2 flickeringly 1 flickeringly 2 3 flickeringly 1 3 flickeringly 1 2 flickeringly Push TEMP button for continuously and S COOL button 5 times And then push S COOL button for continuously and TEMP button 5 times 3 S COOL on 4 5 flickeringly Push TEMP button 5 times LED 2 on Push TEMP button 4...

Page 11: ... 4 Refrigerator ON OFF Temp Difference 1 7C C S COOL MODE 1 Press S COOL SWITCH and make S COOL led lamp on 2 COMP FAN are on until R sensor reaches to Over Refrigeration OFF Point 7C 3 After the reach of 7 C STEP 5 mode continues 4 When S COOL MODE Quick Refrigeration Mode lasts for about 40 minutes it returns to general operation mode D Temperature of Freezer Control It will be only controlled b...

Page 12: ... temp of freezer increases So the COMP works for 25 min before defrost mode Limited Time of Defrost Heater 40 minutes Heater turns off when D SENSOR is OPEN or SHORT 60 minutes Heater turns off after maximum 60 minutes Heater Off When the temperature at D SENSOR is over 10C B Forced Defrost Mode How to start by press TEMP button for continuously and S COOL button 5 times Process same as General De...

Page 13: ...revention of Compressor Restart Refer to function No 5 FUNCTIONS Initial Defrost Flow Chart of Defrost Start Defrost Mode CONTROL OBJECT INPUT Total COMP Work Time COMP Working Rate Total Door Open Time RT 3 Defrost Mode Comp time 2 hours Start Total time 60 hours Comp time 14 hours Comp time 6 hours Comp Rate 80 Any Error RT Temp 40C Total door open time 3min END Defrosting Start Yes Yes Yes Yes ...

Page 14: ...Sensor is on ERROR open or short R Sensor HTR is off Function of R Heater Inspection After initial power is on R HTR is on off 5times for 10 seconds When Defrost Heater is on R Sensor Heater is on CONTROL OBJECT INPUT RT 4 Function of Low Ambient Temperature RT COMP COMP doesn t work after COMP turns off even though R sensor is on condition This is to protect comp A General operation Temp at the R...

Page 15: ...nction of stop for 6 min CONTROL OBJECT INPUT FAST KEY 7 Time Reduction Display Panel A START by pressing TEMP and S COOL buttons for 5 seconds B CONTROL All electronic compartments are off except Display Panel When DEMO mode works led lamps will be on as next steps 1 2 3 4 5 1 C CANCEL Push again TEMP and S COOL buttons for 5 seconds at DEMO or turn off power and restart CONTROL OBJECT INPUT TEMP...

Page 16: ...r service Resistance R47 Default resistance 31 4Kohms Resistance R45 Cut the J1 off to reduce basic resistance by 1 5 C 2Kohms up Resistance R42 Cut the J2 off additionally to reduce basic resistance by 1 5 C total 4Kohms up R47 R SENSOR OFF point R47 R45 R SENSOR OFF point 1 5C R47 R45 R42 R SENSOR OFF point 3C CONTROL OBJECT INPUT J1 J2 On Main PCB 9 Control of R sensor OFF Point R SENSOR J2 R47...

Page 17: ... J3 CUT R30 NO USE 0 3C 2 0C 11 1 4C 4V J3 CUT R30 40 2kohm 0C 1 7C 10 1 1C 3 3V J3 CUT R30 19 6kohm 0 3C 1 4C 9 0 7C 2 5V J3 CUT R30 10kohm 0 7C 1 0C 8 0 4C 2 0V J3 CUT R30 6 65kohm 1 0C 0 7C 7 0 4C 1 6V J3 CUT R30 4 87kohm 1 8C 0 1C 6 0 7C 1 4V J3 CUT R30 3 92kohm 2 1C 0 4C 5 1 1C 1 1V J3 CUT R30 2 8kohm 2 5C 0 8C 4 1 4C 0 8V J3 CUT R30 2kohm 2 8C 1 1C 3 1 7C 0 3V J3 CUT R30 680ohm 3 1C 1 4C 2 S...

Page 18: ... 9C 5V J4 CUT R23 NO USE 1 4C 2 5C 11 3 5C 4V J4 CUT R23 40 2kohm 1 4C 2 1C 10 3 2C 3 3V J4 CUT R23 19 6kohm 1 4C 1 8C 9 2 8C 2 5V J4 CUT R23 10kohm 1 4C 1 4C 8 2 5C 2 0V J4 CUT R23 6 65kohm 1 4C 1 1C 7 2 1C 1 6V J4 CUT R23 4 87kohm 1 4C 0 7C 6 1 4C 1 4V J4 CUT R23 3 92kohm 1 C 0C 5 1 1C 1 1V J4 CUT R23 2 8kohm 1 4C 0 3C 4 0 7C 0 8V J4 CUT R23 2kohm 1 4C 0 7C 3 0 4C 0 3V J4 CUT R23 680ohm 1 4C 1 0...

Page 19: ...R ERROR It happens when the system senses door opens more than 1 hour DISPLAY STEP 2 3 LED Lamps are on off continually CONTROL Deletion of function related door switch sensing If door switch open close is sensed the error is terminated automatically E C1 ERROR When D Sensor is more than 5C Comp operates over 3 hrs DISPLAY STEP 1 3 LED Lamps are on off continually CONTROL The system is normally op...

Page 20: ...lay 4 5 LED flicker When no error happens How to enter the Mode Temp S Cool button for 5 seconds How to enter the Mode S Cool Temp button 5 times How to terminate emp button 1 time or after 4 minutes How to terminate After Mode ends about 30 hour Display 1 S Cool LED ON In Error Mode Display 3 S Cool LED ON In Error Mode How to enter the Mode Temp button 30 times How to enter the Mode Temp S Cool ...

Page 21: ...ratch the surface Unscrew Panel F Control Lift up the Window FCP Input cutterr deeply to lift up easily Pull up the Panel and disconnect the wire connector Procedure Procedure 3 4 2 1 No No Inuput a thin driver in the right part as above picture Move switch to left side And lift up to remove Disconnect the wire housing Procedure Procedure 1 2 20 ...

Page 22: ...r Remove the Door Switch from the cover hinge Separate the Cover hinge by using driver Disconnect door switch connector Be careful not to scratch the cabniet surface Procedure Procedure 4 2 3 1 No No 1 Remove screw cap with flat driver Unscrew 2 points Disconnect the Lamp Sensor wire housing Procedure 3 2 Procedure 21 ...

Page 23: ...w to remove the Louver F As Remove 3 screws in order to disassemble Louver F As Remove the Louver F As pulling the top side When disassembling check the Knob position Disconnect Fan motor wire housing Default position is M 3 6 Procedure Procedure 4 5 2 1 L M H 22 ...

Page 24: ...over Hinge Harness T L Separate the Cover hinge by using driver disclose the door wire harness Reassemble the cover and button door switch And also assemble the door stopper to opposite side Remove the Door Switch from the cover hinge Which is located the Door under Cap Remove the Middle Hinge Disconnect all wire connector and hinge Assemble Cover Bushing Stopper to the opposite a Change the locat...

Page 25: ... fix the Freezer Door Connect the wire harness to door swtich Washer should be up Be careful the dircetion Also assemble wire cover on the top plate On the right Assemble Door and hing cover Change the plate position and separate door switch Procedure Procedure 15 12 14 11 13 24 ...

Page 26: ...etected avoid any naked flames or potential sources of ignition and air the room in which appliance is standing for several minutes In order to avoid the creation of a flammable gas air mixture if a leak in the refrigerating circuit occurs the size of the room in which the appiance may be sited depends on the amount of refrigerant used The room must be 1m3 in size for every 8g of R600a refrigerant...

Page 27: ... polder gauge Time 60 80min Charging the ref on POWER ON Time 10min Coupling cap and gas charging cap should be seperated before welding NO SVC process Image Details 1 Connect the discharging hose to the pinch plier 2 The outlet of discharging hose should be placed to the outdoor window 1 Fix the pinch plier to the compressor charging pipe 2 Pinch plier should not be moving freely If that is movin...

Page 28: ...ed 8 Disassembly of charging valve Coupling pipe 7 Welding 6 Exchanging comp dryer Valve Ass y Valve Ass y 1 And then connect the vacuum pump to the outlet of discharging hose 1 Disassembe the each pipe Del pipe Suc pipe Capi pipe Dryer Hot pipe Vacum pump should be placed at the outdoor where is able to clear air easily It should have enough time more than 10 minutes to discharge Caution A part i...

Page 29: ...e guage 76 Hg If the cycle is not vacuumed it would be leak 1 Check the amounts of R 600a can with scale and discharge the surplus ref Tip of adjusting Can total weight 160g Can 75g Ref 85g Adapter 145g Total 305g The amounts of charging 79g Discharging 6g Total 299g Discharging is surely done at the outdoor where is able to clear air 13 Adjusting the amounts of refrigerants R 600a can 11 Vacuum 1...

Page 30: ...er of refrigerator and then start to charge the ref 10min Charge the ref until going out the water vapour condensing on the can outlet 1 Check the leakage You must rework from Step 1 when the leakage is detected 1 Clean and clear around the machinery room when the service is finished 2 Assemble the machinery room cover 17 Finish 14 Connecting of coupling pipe adapta 15 Charging 16 Leakage Test 29 ...

Page 31: ...ENDENT 1 1 15 3012929100 HINGE U AS RFP 340 1 1 20 3014469600 PIPE WICON AS RFP 340 1 1 21 3010102100 ABSORBER C MOTR NR FRB 5350NT 1 1 22 3015918110 MOTOR C FAN S6112CEC01 1 1 23 3012532000 GUIDE DRN GA T0 4 AL 1 1 24 3011122800 CASE VAPORI AS 1 1 25 3011802700 FAN AS FAN OD110 CLAMP 1 1 26 3016808900 DRYER AS RFM 340 OD19 05 V LAZER 1 1 3956158K50 COMPRESSOR YX58LHP5 220V 50HZ 1 x 3956141250 COM...

Page 32: ...S AC250V 1 1 47 2 3012764600 HARNESS R SENS RFP 340 NBC K43 D21 1 1 48 4010G56012 CASE ICING PP J 360 1 1 49 3012535500 GUIDE F CASE PP 1 1 50 3011197900 CASE F B AS CASE WINDOW 1 1 51 3011197900 CASE F B AS CASE WINDOW 1 1 52 3011198000 CASE F C AS CASE WINDOW 1 1 53 3018927900 LOUVER F AS RFP 341 1 1 53 1 3015918210 MOTOR F FAN S6112CDF03 1 1 53 2 3011835900 FAN OD100 SHAFT OD3 17 1 1 53 3 30134...

Page 33: ...016307700 BUTTON DR SW ABS x 1 67 3014240140 PANEL F PCB AS RFP 341 T SILVER 1 1 67 1 30143G1160 PCB FRONT AS V LAZER FRONT AS RFP 340 1 1 3000077500 RFP 341 TWHITE 3000077510 RFP 341 SILVER 3000077520 RFP 341 T SILVER 3011783220 RFP 341 T SILVER 3011783220 RFP 341 T SILVER 3011783220 RFP 341 T SILVER 68 2 3012321100 GASKET F DR AS RFP 340 1 1 Some parts can be changed for improving without notice...