Daewoo RF-405N Service Manual
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Daewoo RF-405N Service Manual

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S/M No.:
RF-T425NB/NW

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Summary of Contents for Daewoo RF-405N

  • Page 1 S/M No.: RF-T425NB/NW...

  • Page 2: Specifications

    SPECIFICATIONS * is the Color 1. Model Information Refrigerant Type R-134a R-600a Model No. RF-405N** RF-425N** RF-455N** RN-405N** RN-425** RN-455N** Control Type FCP Button Control Total Gross Vol. Freezer (ISO 15502) Refrigerator Total Storage Vol. Freezer (ISO 15502) Refrigerator Width...
  • Page 3 SPECIFICATIONS 2. Interior Parts - Features are model dependent ( Below is RN-425N** model ) 1. Refrigerator Shelves 7. Feezer Case B 2. LED Window 8. Freezer Case C 3. Multi Duct 9. Dairy Pocket As 4. Fresh Care Crisper (option ) 10.
  • Page 4 SPECIFICATIONS 3. Machine (Compressor) Compartment View - Features are model dependent ( Below isRN-425N** model ) Compressor 8. Compressor Absorber 1. Capacitor Run 9. Dryer As 2. Power Cord 10. Pipe Wire Condensor As 3. Suction Pipe As 11. Case vaporization As 4.
  • Page 5 SPECIFICATIONS 4. Refrigerant Cycle - Welding Point Copper Welding ( Ag 5%) 6 Point Silver Welding ( Ag 30%) 3 Point...

  • Page 6: Vegetable Compartment

    SPECIFICATIONS 5. Temperature Diagram * Features are model dependent ( Below model is RN-421N* ) Refrigerator Dial Mode MIN : 3 ~ 6 degree NOR : 0 ~ 3 degree MAX : -2 ~ 0 degree Vegetable compartment : 1 ~ 5 degree Freezer Mode MAX : below -20 degree NOR : -18 ~ -20 degree...
  • Page 7 SPECIFICATIONS 6. Wiring Diagram - For RN-405N** RN-425N** RN-455N**(R-600a) Models...
  • Page 8 SPECIFICATIONS 6-3. Main PCB Circuit Diagram...
  • Page 9 FUNCTIONS 1. DISPLAY INPUT CONTROL OBJECT PCB Control Panel Buttons PCB Control Panel LED Temperature adjustment button for refrigerator “Super Cool” Reference Page No. LED DISPLAY FUNCTION OPERATION LED “NOR” on TEMP STEP “NOR” Initially position LED “MAX-NOR” on TEMP STEP “MAX-NOR” Push “TEMP”...
  • Page 10 FUNCTIONS 2. Temperature Control of Refrigerator Compartment INPUT CONTROL OBJECT PCB Control Panel “TEMP” Buttons PCB Control Panel LED R-sensor COMPRESSOR, FAN A. “TEMP” Button 1. Temperature control of Refrigerator compartment 2. 5 step mode of successive temperature mode 3. Initial mode by power input: step “NOR” 4.
  • Page 11 FUNCTIONS 3. Defrost Mode INPUT CONTROL OBJECT Total COMP Work Time COMP Working Rate Defrost Mode Total Door Open Time / RT Conditions of Defrost Mode A. When total operation time of compressor becomes: 6, 8, 10, 12 hours. - any error mode-R1, D1, F3, C1, RT/S, Door SW error- happens. - or, running rate of COMP (per 2hrs of total operation time) is more than 80%.
  • Page 12 FUNCTIONS 3. Defrost Mode INPUT CONTROL OBJECT Total COMP Work Time / COMP Working Rate Defrost Mode Total Door Open Time / RT Initial Defrost A. When initial power input or returning power failure. if the temperature at the Defrost Sensor is below 3.5 C, Defrost Mode starts. ( It prceeds from 'PRE-COOL' ), [ PRE-COOL - Heater On - Pause (10min) - Normal Operation ] B.
  • Page 13 FUNCTIONS 4. Function of Low Ambient Temperature (RT) INPUT CONTROL OBJECT R-HTR COMP A. Condition of LOW RT - LOW RT Period : RT sensor below 19C - When the temperature of RT sensor is over 20C, the system comes to be “General Operation Mode”. - When the temp.
  • Page 14 FUNCTIONS 7. Time Reduction INPUT CONTROL OBJECT ”FAST KEY” Buzzer A. HOW TO REDUCE - 1 min : Click FAST KEY one time on MAIN PCB. - 30 min : If you press FAST KEY continuously, you can reduce 30 minutes on each 2.5 seconds with buzzer.
  • Page 15 FUNCTIONS 9. Control of R-sensor OFF Point INPUT CONTROL OBJECT Control Resistance of R sensor OFF Point ”J1” , “J2” On Main PCB A. LOW COOLING OPTION ( Weak Cooling ) - When the refrigeration of refrigerator is poor or weak though Fan and COMP are working continuously, the following actions are recommended for service.
  • Page 16 FUNCTIONS 9. Control of R-sensor OFF Point INPUT CONTROL OBJECT Input voltage of MICOM ”J3” & “R30” On Main PCB R-sensor ON/OFF Point B. Prevention OPTION of EXCESSIVE OR LOW COOLING. MICOM 26PIN OPTION 3 (P63) ; The input voltage of MICOM and R-Sensor ON/OFF point by changing J3 & R30. APPLICATION MICOM Compared to...
  • Page 17 FUNCTIONS 9. Control of R-sensor OFF Point INPUT CONTROL OBJECT Input voltage of MICOM ”J4” & “R23” On Main PCB R-sensor ON/OFF Point C. Changing Difference between R-sensor “On” point and “Off” point. MICOM 27PIN OPTION 2 (P64) ; The input voltage of MICOM and R-Sensor ON/OFF DIFF. by changing J4 & R23. APPLICATION MICOM DIFFERENCE OF...
  • Page 18 FUNCTIONS 10. Error Display INPUT CONTROL OBJECT PCB Control Panel Buttons / Door LED Lamp - ERROR DISPLAY - To confirm error happens or not, push S-COOL” button for continuously and “TEMP” button 5 times. - To stop the Error Display Set, push “TEMP” button 1 times, or wait 4 minutes. - After operations back to normal, the displays come to be reset.
  • Page 19 FUNCTIONS 11. Function Key Summary Table MODE Action Button / Remark How to enter the Mode Temp + S-Cool button 5 times Forced Defrost Mode How to terminate After Mode ends ( about 1 hour ) Display 'NOR', 'S-Cool' LED ON (In Error Mode) How to enter the Mode Temp button 30 times Pull Down Mode...
  • Page 20 DISASSEMBLY 1. Front PCB Procedure Procedure Put a (-) driver into aperture locating the botton of Unscrew 2 points with (+) driver and Separate FCP from Panel F control. ( Be careful not to scratch the surface. ) Panel F control. Lift up the Panel F control and Disconnect this from Deco F control can be separated easily.
  • Page 21 DISASSEMBLY 2. Door Switch Procedure Procedure Remove top cover hinge screw with (+) driver. 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. 3.
  • Page 22 DISASSEMBLY 4. Freezer Louver As Procedure Procedure Unscrew the fixing screw 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. L M H Disconnect Fan motor wire housing.
  • Page 23 DISASSEMBLY 5. LED Lamp ( In Freshfood Compartment ) Procedure Using a thin driver, Pull both locker and Separate a Window LED from Liner. Unscrew 2 points with (+) driver Disconnect LED PCB form housing.
  • Page 24 How to change Door opening Dirction (Reversible) Procedure Procedure Button Cover Bushing Hidden Wire After hiding door wire harness, remove the button Door Remove top cover hinge screw with (+) driver. Switch and Cover Bushing. After unscrewing the Cover Hinge Harness *T *L, Separate the Cover hinge by using driver.
  • Page 25 How to change Door opening Direction (Reversible) Procedure Procedure Screw the middle hinge to 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.
  • Page 26 How To Change Door Position 1-1. Remove the Door As a. Remove 'Top Cover Hinge' and 'Top Hinge' b. Separate 'Refrierator Door'. c. Remove 'Middle Hinge' d. Separate 'Freezer Door'. ⓑ e. Remove 'Cover Bracket'. ⓓ f. Remove 'Under Hinge'. 1-2.
  • Page 27 How To Change Door Position 1-3. Reassemble the Freezer and Refrigerator Door j. Assemble the 'Under Hinge' on the left. k. Attach the 'Freezer Door' to Cabniet. l. Assemble the 'Middle Hinge' on the left. ⓜ m. Attach the 'Refrigerator Door' to Cabinet. ( Be careful not to fall down ) n.
  • Page 28 How To Charge R-600a Refrigerant 1. Safety Warning ( R-600a Refrigerant Models) his appliance contains a certain amount of isobutane refrigerant (R600a) a natural gas with high environmental compatibility that is, however, also combustible. When transporting and installing the appliance, care should be taken to ensure that no parts of the refrigerating circuit are damaged.
  • Page 29 How To Charge R-600a Refrigerant 3. Process Summary 1st Step. 2nd Step. 3th Step. R-600a ref. Removing Exchanging comp. discharging the remaning refrigerant & dryer / pipe welding - Connect the dis- - For removing of - Exchange Comp. and Dryer charging hose to remaning refrigerant., - Welding the Pipe...
  • Page 30 How To Charge R-600a Refrigerant S VC process Image Details 1. And then, connect the vacuum pump to the outlet of discharging hose Remov ing the ※ Vacum pump should be placed at remaining ref. the outdoor where is able to clear air easily. ※...
  • Page 31 How To Charge R-600a Refrigerant SVC process Image Details 1. Weld after inserting the coupling pipe to the compressor. Coupling pipe welding ※ Use the wet cloth for preventing the other part of machinery-room from damage. 1. Reassemble the valve ass'y with coupling pipe to clockwise.
  • Page 32 How To Charge R-600a Refrigerant S VC process Image Details 1. Conect can adapter to the coupling pipe. 2. Charge the ref. with open lever slowly. Connecting of coupling pipe & adapta ※ Refrigerant should never leak in the room. 1.
  • Page 33 Cabinet Cabinet Compartment Q'ty PART-CODE PART NAME SPEC. ASSY CAB URT WHITE 3012929000 HINGE *T AS RFP-340 3001427700 PP (WHITE) COVER *T AS 3001427720 PP (T/SILVER) 3018125601 SWITCH H/BAR DR AS SP101B-2D1 3001412200 PP(WHITE) COVER CAB HRNS 3001412220 PP(T/SILVER) 30143HN060 PCB MAIN AS V3 COMBI(RFP-346) 3001416600 COVER(WHITE)+TAPE...
  • Page 34 Cabinet Compressor Compartment Q'ty PART-CODE PART NAME SPEC. 3010349300 BASE COMP AS RFP-340 OPTION CORD POWER AS RFP-340 3956198M50 MQ98NAEM(220-240V/50Hz)R-600a 3956158K50 YX58LHP5(220-240V/50Hz)R-134a COMPRESSOR 3956141250 MD4A1Q-L1U (220-240V/50Hz)R-600a 3956151D20 MSA151D-L1U(115-127V/60Hz)R-134 3016002500 SPECIAL WASHER SK-5 T0.8 3010101600 ABSORBER COMP 3018133000 MQ98NAEM 3018131810 YX58LHP5 SWITCH P RELAY AS 3018132900 MD4A1Q-L1U...
  • Page 35 Cabinet Refrigerator & Freezer Compartment Q'ty NO PART-CODE PART NAME SPEC. 3017065200 R-134a EVA AS 3017068200 R-600a 30127694100 R-134a 27-1 HARNESS D SENS 3012769400 R-600a 3012822000 HEATER D AS R-134a (GLASS)230V 180W 27-2 3012825000 HEATER D AS R-134a (GLASS)110V 180W 3012823000 HEATER SHEATH AS R-600a 230V 160W 3018927900 LOUVER F AS RFP-341...
  • Page 36 Refrigerator & Freezer DOOR Compartment Cabinet Q'ty PART-CODE PART NAME SPEC. 30100A5000 RFP-326 (WHITE) 30100A5010 RFP-326 (T/SILVER) 30100A5100 RFP-346 (WHITE) ASSY R DR RFP-346 (T/SILVER) 30100A5110 30100A5200 RFP-356 (WHITE) 30100A5210 RFP-356 (T/SILVER) 3012327700 RFP-326 39-1 GASKET R DR AS 3012321200 RFP-340 RFP-356 3012327800...

This manual is also suitable for:

Rf-425nRf-455nRn-405nRn-425nRn-455n

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