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Daewoo FRX-623B Series Service Manual
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Daewoo FRX-623B Series Service Manual

Mineral water refrigerator
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Jun.2012.

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Summary of Contents for Daewoo FRX-623B Series

  • Page 1 Jun.2012.
  • Page 2 MODEL INFORMATION Basic Model F/Model : FRX‐623B.. F/Model : FRX‐624B.. F/Model : FRX‐625B.. B/Modle : FRN‐X22B3.. B/Modle : FRN‐X22B4.. B/Modle : FRN‐X22B5.. Dispenser Model F/Model : FPX‐605D.. F/Model : FPX‐604D.. F/Model : FPX‐603D.. B/Modle : FPN‐X22D5.. B/Modle : FPN‐X22D4.. B/Modle : FPN‐X22D3.. Dispenser +Homebar Model F/Model : FPX‐605F.. F/Model : FPX‐605F F/Model : FPX 603F F/Model : FPX‐603F.. F/M d l FPX 604F F/Model : FPX‐604F.. B/Modle : FPN‐X22F5.. B/Modle : FPN‐X22F3.. B/Modle : FPN‐X22F4..

  • Page 3: Specifications

    SPECIFICATIONS 1. Information X22B3.. X22D3.. X22F3.. Buyer No. X22B4.. X22D4.. X22F4.. X22B5.. X22D5.. X22F5.. Total Gross Vol. Freezer (ISO 15502) Refrigerator Total Storage Vol. Freezer (ISO 15502) Refrigerator Width (mm) Diemension Depth (mm) Height (mm) 1770 1770 1770 Weight (kg) 98 kg 107 kg 109 kg...
  • Page 4 SPECIFICATIONS 2. Outside Diemension [ The real features are model dependent ]...
  • Page 5 SPECIFICATIONS 3. Interior Parts(Basic) ※ The real features are model dependent. 1. Door storage compartment 6. Xpress can chiller ; for shot-term storage ; for storing beverage ( quick cooling compartment ) 2. Door storage compartment 7. Refrigerator shelf ; for storing frozen food ;...
  • Page 6 SPECIFICATIONS 3. Interior Parts(Dispenser +H/bar) ※ The real features are model dependent. 1. Door storage compartment 6. Xpress can chiller ; for shot-term storage ; for storing beverage ( quick cooling compartment ) 2. Door storage compartment 7. Refrigerator shelf ;...
  • Page 7 FUNCTIONS 1. Display (Basic) Temperature adjustment button for freezer compratment. Lock & Unlock button. Temperature adjustment button for refrigerator compartment. 2. Display Control Control Temp.Display(Set Temp.) Initial Mode : Freezer / Refrigerator set medium ( -19C / 4C) Quick Freezer & Refresh Compartment Button Key Lock Button...
  • Page 8 FUNCTIONS 1. Display Temperature adjustment button for freezer compratment. Dispenser light button. Lock & Unlock button. Lock ice maker & cubed ice selction button. Temperature adjustment button for refrigerator compratment. Water dispenser selction button. 2. Display Control Control Temp. Display (Set Temp.) Initial Mode : Freezer / Refrigerator set medium ( -19C / 4C) Quick Freezer &...
  • Page 9 FUNCTIONS 4. REF.SET button 1) Temperature control of refrigerator compartment 2) Initial power plug in : Medium ( 4C ) - Every time you press the REF.SET button, the setting temperature changes below order. 5. WATER/ICE select 1) When push the WATER button, water dispensing available. 2) When push the ICE button, cubed ice dispensing available.
  • Page 10 FUNCTIONS ( Temperature Control ) 1. Freezer Compartment Control 1) Adjust by the pushing the FRZ.SET button. 2) Compressor & Freezer Fan controlled by each mode ON/OFF point. 3) Freezer Compartment ON/OFF Difference : 4C - MEDIUM OFF point : -19.8C 4) Control Temperature Point in Each Mode Division Initially On...
  • Page 11 FUNCTIONS ( Temperature Control ) 2. Refrigerator Compartment Control 1) Adjust by the pushing the REF.SET button. 2) Refrigerator Damper controlled by each mode ON/OFF point. 3) Refrigerator Compartment ON/OFF Difference : 0.5C - MEDIUM OFF point : 6.0C 4) Weak Cooling Prevention Function - This funtion is free of Freezer sensor.
  • Page 12 FUNCTIONS ( Fan Control ) 3. Fan voltage per control mode Exerted fan motor voltage Mode F-Fan C-Fan Normal mode 10 V 13 V Super Freezer mode 13 V 13 V Load mode / 4 hours after defrosting 13 V 13 V RT >= 38C 1) Normal control : Slow operation mode with relatively low noise level.
  • Page 13 FUNCTIONS ( Defrost Mode ) 1. When Defrost Mode start? 1) When total Compressor runnig time becomes at 10,12,14..40hours. - Door opening time is over 2 minutes ( Each Freezer / Refrigerator door ) - Any error happens. ( R1, F1, D1, F3, RT-Sensor, C1, Door switch etc. ) - The compressor runing time is over 12 hours.
  • Page 14 FUNCTIONS ( Defrost Mode ) 2. Normal Defrost Mode 1) HEATER DEFROSTING HEATER - Defrost heater is switch on until Defrost Sensor temperature reaches 13C. DEFROTING - Heater operation time ; 30 seconds - Heater is ON free of Defrost Sensor. ;...
  • Page 15 Error Display ( Basic Models ) 1. How to enter this check mode 1) Push the LOCK button. 2) Push the LOCK button 5 times while pressing the FRZ.SET button. 2. The Front LED displays the current error code ( if happens ). ;...
  • Page 16 Error Display ( Dispenser Models ) 1. How to enter this check mode 1) Push the LOCK button. 2) Push the WATER button 5 times while pressing the FRZ.SET button. 2. The Front LED displays the current error code ( if happens ). ;...
  • Page 17 FUNCTIONS ( Error Display ) 5. Troubleshooting when error happens ( If the relative parts is normal, Error code display will be reset. ) 1) F1 error - Cause : Freezer sensor disconnection or short. - Check point : Measure the resistance of freezer sensor in the Main PCB. If sensor is disconnected or short, change that in the freezer compartment.
  • Page 18 FUNCTIONS ( Error Display ) 7) Et error - Cause : Level switch abnormal. ( No pulse is sensed for some time. ) - Control : By time. ( Supply mode is skipped. ) 8) Eg error - Cause : When Ice sensor temperature ( 5 minutes after water supply ) doesn't go up. - Check point : Ice sensor or water supply line.

  • Page 19: Water Supply

    FUNCTIONS ( Ice Maker ) 1. Ice making flow Start - water freezing Making the Ice water supply stand by Ice separating - Ice tray rotation to separate ice cubes - water supply to ice tray Water supply Water supply - check if water supply complete or not check 1) Press Test switch ( which is under the ice tray ) for more than 1 second and then test starts.
  • Page 20 FUNCTIONS ( Ice Maker ) 2. Ice making mode Start Ice sensor is below 70 minutes pass -9.5C Ice sensor is over 15 minutes pass -12.5C Ice separating 1) If Ice sensor temperature is below -12.5C after 70minutes, ice making completes. 2) If Ice sensor temperature keep below -9.5C for 15 minutes ice making complete, although the sensor is not below -12.5C 3) After 4.8hours ice making complete, when ice sensor is abnormal, 3.
  • Page 21 FUNCTIONS 4. Weak Cooling Trouble Shooting ; Adjust refrigerator sensor OFF point - Normal sensor resistance. (31.4kohm) - Cut the J18 and increase sensor resistance. (33.4kohm) - Cut the J18, J19 and increase resistance. (35.4kohm) Weak Cooling happens Option Normal 1.5C down 3.0C down 5 Magic cool zone ( *not all models )
  • Page 22 FUNCTIONS 6. Pull Down Mode ( Test Mode ) 1) How to start - Push the LOCK button. - Push the ICE button 5 times while keep pressing the REF.SET & FRZ.SET button. 2) How to control : Compressor, Freezer Fan, Refrigerator Fan and Compressor Cooling Fan is ON for 30 hours. 3) Display : Co display in Error Mode 4) Termination : After 30 hours or power reset.

  • Page 23: Functions Keys

    FUNCTIONS KEYS 1. Basic Model - All the modes active in LOCK condition ( Push the LOCK button ) Mode How to enter Remark REF.SET button 5 times while keep pressing FRZ.SET button. A/S Forced Defrosting LOCK button 10 times while keep pressing REF.SET button. Pull Down LOCK button 5 times while keep pressing FRZ.SET button.
  • Page 24 WIRING DIAGRAM ( Basic Model )
  • Page 25 WIRING DIAGRAM (Full Models )
  • Page 26 WIRING DIAGRAM ( Full Models_Inverter Comp. )
  • Page 27 How to Disassemble / Assemble for each part 1. Inner lamp changing method Disassembling Procedure...
  • Page 28 How to Disassemble / Assemble for each part 2. Ice maker / Geared-Moter changing method Disassembling Procedure...
  • Page 29 How to Disassemble / Assemble for each part 3.Freezer cooler area changing method Disassembling Procedure...
  • Page 30 How to Disassemble / Assemble for each part 4.Cooler fan / Fan separation Disassembling Procedure...
  • Page 31 How to Disassemble / Assemble for each part 5. Cooler front cover separation Disassembling Procedure...
  • Page 32 How to Disassemble / Assemble for each part Evaporator in detail...
  • Page 33 How to Disassemble / Assemble for each part 6. Refrigerator Damper changing method Disassembling Procedure...
  • Page 34 How to Disassemble / Assemble for each part 7. Refrigerator Damper changing method...
  • Page 35 How to Disassemble / Assemble for each part 8. C-Fan Motor changing method Disassembling Procedure C-Fan motor housing Bell mouth As...
  • Page 36 HOW TO Disassemble / Assemble for each part 9. Pump (Dispenser / Ice Maker) 1) Disassembling Procedure Procedure Procedure Pull out the water tank Unscrew 2 points with (+) driver After Turning on water icon lamp , Press Pull both locker and Separate the cover button to drain water in the tube.

  • Page 37: Troubleshooting

    TROUBLE SHOOTING 1. Faulty Start ( Lights OFF, Front PCB Power Dead ) Start Power plug or fuse is connected? Chage the plug or Fuse 1st power of SMPS is ON? Check the plug connection from compressor room and to CN1 of Main PCB Main PCB Fuse is connected?
  • Page 38 TROUBLE SHOOTING 2. Freezing or cooling failure ( Weak cooling )
  • Page 39 TROUBLE SHOOTING 3. Ice formation on Freezer Louver Start Dews form on the Gasket has a gap Remove the gap gasket surface Door hang down? Reassemble the door Door opening is too frquently? Explain not to open too frequently Heat appliance are too close? Make enough distance between heat appliance and...
  • Page 40 TROUBLE SHOOTING 4. Disconnection / Breaking of Interior Lights Wire 4-1. Freezer Door Start Freezer light filament is disconnected or breaking? Change the light bulb Connection of Freezer door switch Repair Door Switch Check the Door Switch connection and light socket 4-2.
  • Page 41 TROUBLE SHOOTING 6. Dews on Refrigerator Compartment...
  • Page 42 TROUBLE SHOOTING 5. Refrigeration failure ( Foods does not get cool or cold soon )
  • Page 43 TROUBLE SHOOTING 7. Cold of Vegetable Case Start Temperature setting Change to 'MIDDLE' mdoe Check Valve Repair or change the new Any Refrigerator Repair or change the new Sensor is ok? sensor Error? Check sensor connection (Check the connector to Main PCB) Remark - Compressor sound is somewhat normal because it works like a heart to circulate the refrigerant in the pipes.
  • Page 44 TROUBLE SHOOTING 8. Operation Noise of Refrigerator 8-1. Refrigerant Flow Sound Start Water flowing or Attach an absorber gum hiss sounds? on the capillary tube Hiss or sizzling sound Apply a gum on the when comprssor starts accumulator Any shaking sound from Fasten the evaporator tightly Freezer compartment when not to touch liner surfaces.
  • Page 45 TROUBLE SHOOTING 8-3. Pipe Noise Start Pipes are touching in the machine (compressor) compartment? Separate the touching pipes, if any.. Tray drip makes noise by condenser shaking? Apply cushion matterial between compressor base and tray drip. Pipe itself is shaking much? Move or change the points of vibration absorber rubbers on the...
  • Page 46 TROUBLE SHOOTING 9. Door opening alarm continues after closing Start Check if interior light is ON Door switch pushing well? Attach a thin pad on the door liner or change the door assmbly. Door switch is soaked with water or there is water in the switch? Change the door switch PCB input is OK?
  • Page 47 TROUBLE SHOOTING 10. Dispenser (Water Supply ) Operation Start On Display, Water Icon turns on? Turn on Water Icon (select the water mode) Is there Water in Water Tank? Refill Water Tank with Water Parts(Silicon) in the Water Tank is in right Assemble Parts in right position Pump for Dispenser operates?
  • Page 48 TROUBLE SHOOTING 11. Dispenser (Water Supply ) Water-Leakage Points - Freshefood Compartment 1. Water tank Guide Front Image Back Image 2. Pump - Compressor Compartment...

  • Page 49: Installation

    COOLING CYCLE HEAVY REPAIR 1. Summary of Heavy Repair Process Contents Tools Remove Cut charging pipe ends (Comp. & Dryer) and refrigerant Nipper, side cutters discharge refrigerant from drier and compressor. Residuals Confirm refrigerant (R-134a or R-600a) and oil for compressor and drier.

  • Page 50: Cooling Cycle Heavy Repair

    COOLING CYCLE HEAVY REPAIR 2. Precautions During Heavy Repair Items Precautions Use of tools. - Use special parts and tools for R-134a or R-600a. 1) Remove retained refrigerant more than 5 minutes after turning off a refrigerator. (If not, oil will leak inside.) Removal of retained 2) Remove retained refrigerant by cutting first high pressure side refrigerant.
  • Page 51 COOLING CYCLE HEAVY REPAIR 3. Practical Work for Heavy Repair Items Precautions 1. Removal of residual 1) Remove residual refrigerant more than 5 minutes later after refrigerant. turning off the refrigerator. ( If not, compressor oil may leak inside.) 2) Remove retained refrigerant slowly by cutting first high pressure side (drier part) with a nipper and then cut low pressure side.
  • Page 52 COOLING CYCLE HEAVY REPAIR Items Precautions * Pipe Connection Connect a red hose to the high pressure side and a blue hose 3.Vacuum degassing to the low pressure side. * Vacuum Sequence Open 1,2 valves and evacuate for 40 minutes. Close valve 1.
  • Page 53 COOLING CYCLE HEAVY REPAIR Item Precautions 4.Refrigerant charging 4) Refrigerant Charging Charge refrigerant while operating a compressor as shown above. 5) Pinch a charging pipe with a pinch-off plier after completion of charging. 6) Braze the end of a pinched charging pipe with copper brazer and take a gas leakage test on the welded parts.
  • Page 54 COOLING CYCLE HEAVY REPAIR Brzing Reference Drawings...
  • Page 55 Water System for Mineral Water Models...
  • Page 56 Cabinet Parts Q'ty Part Code Part Name Description Basic DISP. DISP.+H/BAR ASSY CAB URT 3012933100 HINGE *T *R PO T3.0+PAINT 3012933000 HINGE *T *L PO T3.0+PAINT 3001436800 COVER HI *T *R AS FRX-621B 3018125601 SWITCH H/BAR DR AS SP101B-2D1(G) GRAY 3001436700 COVER HI *T *L AS FRX-621B...
  • Page 57 Compressor Room Part Code Part Name Description Q'ty 3010359600 BASE COMP AS OPTION CORD POWER AS country dependent 3956180910 EGX80HLC (115-127V/60Hz) 3956183H4B MK183H-L2UB(220V/60HZ) 3956183D2B MK183D-L2UB(110~127V) 3956183Q5B COMPRESSOR MK183Q-L2UB(220~240V/50Hz 3956112250 DG125E11RAW5(220~240V/50 3956114M80 LQ140NAEM(220~240V/50Hz) 3959115280 EU4A5Q-L2X, Inverter Comp. 3018132600 SWITCH P TSD AS 4TM445KFB(EGX80HLC) 3018129720 265RFB, J531Q34E220M(MK183...
  • Page 58 Freezer Compartment Q'ty PART-CODE PART NAME SPEC. Basic Model Dispenser Model 3017068900 220-240V, 280W EVA AS 3017068910 110-127V, 250W 33-1 3014809500 SENSOR D AS PBN-43 3012824210 220-240V, 280W 33-2 HEATER SHEATH AS 3012824220 110-127V, 250W 3018928600 LOUVER F A AS FRY-621B 35-1 3015920700...
  • Page 59 Refrigerator Compartment Q'ty PART-CODE PART NAME SPEC. Basic Model Dispenser Model 3016767100 DAMPER AS DU24-013 3001436900 COVER DAMPER AS FRX-621B 3015517000 WINDOW COVR DAMP GPPS 30143HJ220 PCB REF LED AS 9-LED FR-4 230X20-1.6T 3015517100 WINDOW R LED *T 3017851300 SHELF R AS FRX-621B 3017858300 SHELF W/TANK TOTAL AS FPX-602...
  • Page 60 F-DOOR(Short Handle) Q'ty PART-CODE PART NAME SPEC. Basic Dispn. 3019058000 POCKET F*T GPPS 3019057900 POCKET F*M GPPS 3019058100 POCKET F*U GPPS FRX-623B(BLH6L) 30100A4HA0 30100AHB0 FRX-623B(TSH5L) ASSY F DR (Basic Model) 30100A4H60 FRX-623B(TSH5E) 30100A4H70 FRX-623B(DWH1C) FRX-603D(TSH5E) 30100B7200 ASSY F DR (Dispenser , 30100B7210 FRX-603D(DWH1C) Dispenser+H/bar Model)
  • Page 61 F-DOOR(Middle Handle) Q'ty PART-CODE PART NAME SPEC. Basic Dispn. 3019058000 POCKET F*T GPPS 3019057900 POCKET F*M GPPS 3019058100 POCKET F*U GPPS 30100A4H00 FRX-621B,TSH5E 30100A4H10 FRX-621B,TSH5L FRX-621B,MWH4L 30100A4H20 ASSY F DR (Basic Model) 30100A4H40 FRX-621B,SUG7E 30100A4H50 FRX-621B,BLH6P 30100A4H90 FRX-621B,DWH1C 30100A4J00 FRX-601D,TSH5E 30100A4J10 FRX-601D,TSH5L ASSY F DR...
  • Page 62 F-DOOR(Long Handle) Q'ty PART-CODE PART NAME SPEC. Basic Dispn. 3019058000 POCKET F*T GPPS 3019057900 POCKET F*M GPPS 3019058100 POCKET F*U GPPS FRX-621B,TSH5E 30100A5H00 FRX-621B,TSH5L 30100A5H10 ASSY F DR 30100A5H20 FRX-621B,MWH4L (Basic Model) 30100A5H40 FRX-621B,SUG7E 30100A5H50 FRX-621B,BLH6P 30100A5J00 FRX-602D,TSH5E 30100A5J10 FRX-602D,TSH5L ASSY F DR (Dispenser , 30100A5J20...
  • Page 63 R-DOOR(Short Handle) Q'ty PART-CODE PART NAME SPEC. Non H/Bar Door H/Bar Door 30100B77F0 FRX-603D,TSH5L 30100B77E0 FRX-603D,BLH6L ASSY R DR (Basic Model , 30100B7700 FRX-603D,TSH5E Dispenser Model) FRX-603D,DWH1C 30100B7710 30100B7720 FRX-603D,BLH6L 30100B7300 FRX-603G,TSH5E 30100B7310 FRX-603G,DWH1C ASSY R DR (H/bar Model) 30100B7320 FRX-603G,BLH6P 30100B73D0 FRX-603G,BLH6L...
  • Page 64 R-DOOR(Middle Handle) Q'ty PART-CODE PART NAME SPEC. Non H/Bar Door H/Bar Door 30100A4K00 FRX-621B,TSH5E 30100A4K10 FRX-621B,TSH5L ASSY R DR 30100A4K20 FRX-621B,MWH4L (Basic Model , Dispenser FRX-621B,TSH5E 30100A4K40 Model) 30100A4K50 FRX-621B,BLH6P 30100A4K80 FRX-621B,DWH1C 30100A4L00 FRX-601F,TSH5E 30100A4L10 FRX-601F,TSH5L ASSY R DR 30100A4L20 FRX-601F,MWH4L (H/bar Model) 30100A4L40...
  • Page 65 R-DOOR(Long Handle) Q'ty PART-CODE PART NAME SPEC. Non H/Bar Door H/Bar Door FRX-622B,TSH5E 30100A5K00 30100A5K10 FRX-622B,TSH5L ASSY R DR 30100A5K20 FRX-622B,MWH4L (Basic Model , Dispenser FRX-622B,SUG7E 30100A5K40 Model) 30100A5K50 FRX-622B,BLH6P 30100A5KB0 FRX-622B,BLH6L 30100A5L00 FRX-602F,TSH5E 30100A5L10 FRX-602F,TSH5L ASSY R DR 30100A5L20 FRX-602F,MWH4L (H/bar Model) 30100A5L40...

This manual is also suitable for:

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