Daewoo FRN-U20IE series Service Manual Download Page 1

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Refrigerator

S/M No:

RNRSU20001

- Jan, 2007

✔

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

Summary of Contents for FRN-U20IE series

Page 1: ...an 2007 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 Li...

Page 2: ...48 8 TROUBLE DIAGNOSIS 8 1 Power Failure 50 8 2 Freezer Compartment 51 8 3 Refrigerator Compartment 57 8 4 Operation Noise of Refrigerator 62 8 5 Door 68 9 COOLING CYCLE HEAVY REPAIR 9 1 Summary of He...

Page 3: ...em 7 Make sure the hook is correctly engaged Remove dust and foreign materials from the housing and connecting parts 8 Do not fray damage machine heavily bend pull out or twist the power cord 9 Please...

Page 4: ...3 2 1 External Size 2 EXTERNAL VIEWS FRS N U20IE...

Page 5: ...4 FRS N U20DE EE...

Page 6: ...5 FRS N U20FE GE...

Page 7: ...Freezer case 9 Movable Egg case 4 Freezer shelf 8 Chilled case 3 Ice tray 7 Refrigerator light 2 Freezer pocket 6 Dairy pocket 1 Freezer light Refrigerator Compartment Freezer Compartment 1 2 4 3 5 7...

Page 8: ...n 11 Refrigerator shelf 5 Freezer pocket 10 Movable Egg case 4 Freezer shelf 9 Wine Rack 3 Water Ice Dispenser 8 Refrigerator light 2 Freezer light Refrigerator Compartment Freezer Compartment 1 2 4 3...

Page 9: ...8 Freezer Compartment Refrigerator Compartment 2 3 Cold Air Circulation...

Page 10: ...Li 541 Li U20DE C Y C L E ID 0 7 T0 55 L2200 Capillary Tube Molecular Sieve XH 9 Dryer Fan Cooling System Condenser Fin Type Evaporator 525 Li 570 Li Total ISO Gross Volume Li 178 Li 209 Li Freezer 3...

Page 11: ...Temp Defrost PBN 38 F Sensor D Sensor D E F O R E S T AC220V 5W Water Pipe Heater AC220V 5W Dispenser Heater AC220V 8W Louver Heater H E A T E R SP201R 7DL SP201R 7DR SPF101B 2D SPF101B 1D AC230 240V...

Page 12: ...ccessive temperature mode 3 Initial mode by power input 3 Whenever pressing button setting is repeated in the order of Medium 3 Medium Max 4 Max 5 Min 1 Medium Min 2 INPUT CONTROL OBJECT CONTENTS REMA...

Page 13: ...n 22 Max 3th Press 16 Min 4th Press 18 6th Press 17 21 20 Temp indication 5th Press 2nd Press 1st Press Temperature Change 4 1 2 FRS N U20BE Type Letters are indicated on 88 Display LED Temperature ad...

Page 14: ...is chosen the icon FREEZER QUICK is ON After six month LED ON FILTER CHANGE ICON Dial ICE MAKER LOCK ICON Dial LOCK ICON Dial WATER CUBED ICE CRUSHED ICE ICON Always ON FUZZY DEODORIZER ICON Dial SUP...

Page 15: ...y pushing ICE MAKER LOCK button again ICE MAKER LOCK icon is off WATER icon is on 8 RESET WATER FILTER button 1 The normal ICON OFF is on for 6 month after are first power input 2 After sic months ico...

Page 16: ...fan R fan Heater etc OFF Fan Delay Time 5 minutes Comp ON and F fan R fan Heater OFF 4 2 Defrost Mode 2 The defrost mode start with the following conditions 1 Total operation time of comp becomes 6 8...

Page 17: ...ng time is over 24 hours Total time is over 60 hours Comp operating time is over 6 hours End Defrosting start Comp operating time is over 2 hours Any error NO YES NO NO YES Total door open time is ove...

Page 18: ...5 minutes Comp ON F fan R fan Heater OFF Pause Fan Delay Heater Defrosting 2 How to start 1 Basic Model Push REF TEMP Set button 5 times while pushing FRZ TEMP Set button simultaneously 2 Dispenser Mo...

Page 19: ...uttons 2 Door Switch 3 Initial Power Input Buzzer 4 5 Buzzer or Alarm Control 1 Control refrigerator compartment lights R Lights turn ON OFF by R door switch ON OFF For 10 minutes after sensing door o...

Page 20: ...again INPUT CONTROL OBJECT CONTENTS REMARKS 1 FRZ TEMP 2 Door Switch F R Fan Door Switch 4 7 1 FRS N U20IE Type 4 7 Demonstration Mode 1 Start Push SUPER REF button 5 times while pushing REF SET butt...

Page 21: ...ctrical components are OFF except for F fan R fan 2 Fan Control Door OPEN Fan ON Door close Fan OFF 3 Stop or termination 1 During Demo mode push ICE WATER button 5 times while pushing FREEZER SET but...

Page 22: ...1 In case of weak ref cut J1 or J18 to down the standard resistance by 1 5deg 2K 2 In case of weak ref cut J2 or J19 to down the standard resistance by 1 5deg 2K 4 8 Compensation of R sensor ON OFF Te...

Page 23: ...MP button at the error display mode REF LED 1 is on and off twice Forced defrost mode for A S REF LED 1 is on Full Down mode REF LED 1 is on and off EEPROM defective REF LED 2 is on and off Return aft...

Page 24: ...tomatically in 4 minutes from the start 3 All the error codes are reset if they turn to be normal 4 Error code INPUT CONTROL OBJECT CONTENTS REMARKS Temperature Control Buttons 88 Display CLED Display...

Page 25: ...for more than 1 hour Control Deletion of function related door switch sensing If door switch open close is sensed the error is terminated automatically 6 Cycle error Cause in case comp works for over...

Page 26: ...2 How to stop 1 Push LOCK button 1 time 2 It stops automatically in 4 minutes from the start 3 All the error Codes are reset if they turn to be normal 4 Error code INPUT CONTROL OBJECT CONTENTS REMARK...

Page 27: ...l down Check point Measure the voltage of A part on the Main PCB If the voltage is 0 5V 4 5V it is normal If the voltage is 0V short or 5V disconnected change the RT sensor on the Main PCB How to rese...

Page 28: ...5min after water supply doesn t go up Check the I sensor or water supply line 12 ES error MICRO switch error Cause When it senses 1min continuously Check the MICRO switch of the dispenser 14 Eu error...

Page 29: ...REF SUPER FRZ 5 times Pull Down FRZ SET REF SET 5 times Forced Defrosting 4 10 2 FRS N 20BE Type INPUT CONTROL OBJECT Each button 1 All the modes are started LOCK mode except FILTER RESET mode 2 Elem...

Page 30: ...n or it is automatically reset after 4 minutes INPUT CONTROL OBJECT CONTENTS REMARKS Temperature Control Buttons 88 Display CLED Filter information Adjust the amount of water Function to adjust the am...

Page 31: ...test starts Test mode starts from ice separating mode In case test switch has an error of short test is done only once START Ice making mode Ice separating mode Water supply mode Water supply check mo...

Page 32: ...l Operation proceeds to Ice making mode Ice separating and water supply Modes stop 5 Crusher Function It stops operation when freezer door is open It operates if freezer door is closed 2 Ice making mo...

Page 33: ...used to verify level switch error 2 The rotation of motor is sensed at each zone 3 In case of level switch error ice separation is done by time 4 If ice separating motor has error the mode stop 4 Wat...

Page 34: ...T CONTENTS REMARKS Dispenser switch WATER ICE Button ICE MAKER LOCK Button Freezer Door Switch Dispenser Lamp Crusher Motor Flap Solenoid Crusher Solenoid Dispenser Water Valve 1 Initial mode water Mo...

Page 35: ...l Flow Timing Chart Crushed Ice Cubed Ice Water Delay time A 500ms B 500ms C 2 0s D 5 0s D P SW Gear Motor D P Lamp D P S V Flap D A A C D P SW Cube S V D P S V Flap Gear Motor D P Lamp A C A A B D D...

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Page 41: ...Motor R Sensor R Sensor Inner Controller F Door Switch R Door Switch R Door Switch Freezer Compartment Dispenser Model F Lamp F Fan Motor R Lamp R Fan Motor 6 2 Inner View Refrigerator Compartment Dis...

Page 42: ...D Sensor Temp Fuse Defrost Heater Water Pipe Evaporator Compressor Condenser Dryer Running Capacitor OLP PTC Water Valve Condenser Fan Motor Tray Drip Power cord 6 3 Evaporator 6 4 Machine Compartmen...

Page 43: ...e Cover Guide Cab W Tube A Pull forward Ice Maker Pull forward Hose Ice Maker Tube As Remove Water Hose Heater s 2P housing Check Hose Ice Maker Tube As 2 How to check Hose Ice Maker Tube As How to ch...

Page 44: ...mbly SPEC CRITERION GOOD 11 3 10 10 8 12 7 DEFECTIVE Change the Geared Motor PARTS HOW TO CHECK GOOD 145 8 133 156 DEFECTIVE Change the Cube Sol Valve Check resistance value of 2 terminals with a Mult...

Page 45: ...o Switch CRITERION GOOD DEFECTIVE Change Micro Switch PARTS HOW TO CHECK SPEC NAME VP333A OD 8 VOLTAGE 125V 3A 7 3 Dispenser Micro Switch 1 Disassembling Procedure Check both terminals red circle with...

Page 46: ...CRITERION Good 215 10 193 236 DEFECTIVE 0 Change Sol Valve PARTS HOW TO CHECK GOOD 96 8 88 104 DEFECTIVE Change Flap Heater AS SPEC NAME SOL2003 01B VOLTAGE 220 240V 50Hz VOLTAGE DC 12V 1 5W Check res...

Page 47: ...2 To check normal voltage of each electrical devices to from Mi com Check input output voltage of MICOM and IC7 Fan Power Controller 3 To check input output voltage of Fan 2 Input 5 Output Electric C...

Page 48: ...ltage of each electrical devices to from Mi com Check input output voltage of MICOM and IC7 8 Fan Power Controller 3 To check input output voltage of Fan Electric Current Fuse 4 To check when each dev...

Page 49: ...ormal OK 7 6 Ice Maker 1 Disassembling Procedure 2 7 Remove 2 screws on top front of ice maker Remove full ice sensing switch and level switch 4 9 Separate Ice Maker Assembly from Frame Ice Maker Remo...

Page 50: ...nge the sensor Full Ice Sensing Switch Check resistance value of 2 terminals with a Multi Tester GOOD DEFECTIVE Change the switch Level Switch Check resistance value of 2 terminals with a Multi Tester...

Page 51: ...n the left side of machine compartment Start Power cord or Fuse is disconnected 1 st power of SMPS is on Main PCB Fuse is disconnected Voltage DC12V 14 5V 5V on Main PCB is OK Wire connection of F PCB...

Page 52: ...Eva And if refrigerant leak is found repair it N N Y Y Y N N Defrost Heater 192W 252 Left lower side of Evaporator 4th pipe from buttom OLP PTC is OK Does Comp work Any Error code on F PCB F C Motor...

Page 53: ...helves and cases in Freezer compartment 1 Removing and replacing Freezer parts Remove 2 screws of Ice Maker Remove the Housing of Ice Maker AS Right side Remove 4 screws of Geared Motor Remove the Hou...

Page 54: ...owly Remove the screw cap on the F Louver A with a flat tip driver Removing and replacing Freezer parts Pull out smoothly the bracket F Lamp AS to remove Remove 3 screws of F Louver A Hold the end of...

Page 55: ...ing and replacing Freezer parts F Louver B Heater Housing D Sensor Housing 1st F Louver B Heater Housing 2nd None 3rd Defrost Heater Housing Temp Fuse Defrost Heater D Sensor Defrost Heater Temp Fuse...

Page 56: ...Y N N Make enough distance between heat appliances and refrigerator Y N N 8 2 2 Ice Formation on F Louver Dews are formed on the gasket surface inside F compartment Gasket has a gap between cabinet Do...

Page 57: ...t a flat tip screw driver Into a gap of door switch to pull forward Disconnect the housing and change the switch for a new one 8 2 3 Disconnection breaking of Freezer Lights Wires Freezer light filame...

Page 58: ...Sensor and check connector Y Y N N 8 3 1 Refrigeration failure Foods does not get cool or cold soon Any error mode on F PCB R Motor works OK R Motor is OK Wiring connection Is OK R Sensor is OK norma...

Page 59: ...nection of R door switch is OK 8 3 2 Disconnection Breaking of Refrigerator Lights Wires Change of R Lights Change of F Door Switch Follow the reverse order of disassembling after changing the light I...

Page 60: ...efore storing in the compartment Repair and change R motor Y N Y Y Y N N N N Explain not to open doors too long Y N N N Y 8 3 3 Dews on Refrigerator Compartment Dews are formed on the gasket inside R...

Page 61: ...ge the R check valve Change the R sensor Y N N Y Check the R sensor connection Check the connector to Main PCB N Y Refer to Repair Change of Check Valve Y 8 3 4 Excessive Refrigeration of Vegetable Ca...

Page 62: ...emove Lift up a piece of Check Valve Flap and insert a finger to the valve frame to hold out Removing of Check Valve Remove screws of light cover Hold the bottom of cover and pull forward to remove Di...

Page 63: ...arks Compressor sound is somewhat normal because it works like a heart to circulate the refrigerant in the pipes during the refrigerator operation Rattling or metallic touch sound of motor piston of c...

Page 64: ...the users or customers Remarks Water flowing sound hiss or sizzling sound can make while refrigerant in the pipes is changing from liquid to gas state when comp starts or stops It is normal to the re...

Page 65: ...ator 3 Shaking or trembling Sound of Evaporator 1 2 2 When such a sound is made attach a absorber on the tube including 2 welding points Attach a absorber on point accumulator 1 Check whether evaporat...

Page 66: ...Start Change the fan N Y Set it right not to touch Y N Set it right not to move Y N Change the motor assembly N Y Explain to the customers how fan is working to circulate cold air in the compartments...

Page 67: ...Fastening of Fan Motor 1 Check if fan motor frame of the assembly is fastened tightly with screws to the liner wall Unless it is tight vibration of shaking can make 1 Check if sealing sponge on the in...

Page 68: ...a much bent point on the pipe Start Separate the touching pipes if any N Y Apply cushion material between Comp base and Tray drip Y N Move or change the points of vibration absorber rubbers on the pi...

Page 69: ...or insertion to Main PCB is OK N Repair the defective connection Y Door switch itself is OK N Change the switch N Y Check it up Door switch is pushed well Y Attach a thin pad on the door liner or chan...

Page 70: ...ty Bombe mass cylinder refrigerant manifold gauge electronic scales punching off flier gas welding machine Weigh and control the bombe in a vacuum conditions with electronic scales and charge through...

Page 71: ...when repairing pipes and injecting refrigerant Replacement of drier 1 Remove retained refrigerant more than 5 minutes after turning off a refrigerator If not oil will leak inside 2 Remove retained ref...

Page 72: ...ter assembling a drier When replacing a compressor Weld and parts by blowing nitrogen to the low pressure side Note For other parts nitrogen blowing is not necessary because it does not produce oxidiz...

Page 73: ...e weight of refrigerant charged into the bombe by subtracting the weight of an evacuated bombe 4 Refrigerant charging Compressor Evaporator Dryer Condenser Vaccum Pump Hot Pipe Blue Yellow Red High Pr...

Page 74: ...work 6 Pipe arrangement in each cycle 9 4 Standard Regulations for Heavy Repair 1 Observe the safety precautions for gas handling 2 Use JIG or wet towel in order to prevent electric wires from burning...

Page 75: ...Welding Ag 35 Hot Pipe F R Evaporator Condenser I Pipe Accumulator Suction Pipe Dryer Capi Tube Pipe Suc Conn Pipe Conn B Compressor Flow of Refrigeration Cycle Compressor Pipe Conn B Wire Con Pipe H...

Page 76: ...epth Height 903mm X 734 5mm X 1790mm Find a suitable place to install Sufficient space from refrigerator back to the wall for free air ventilation Avoid direct sunlight Once the installation place is...

Page 77: ...Turn top hinge bolt counterclockwise Disconnect the harness wires 4 Lift up the front of hinge to remove After the hinge is removed the door can fall down forward Be careful 5 Be careful not to damage...

Page 78: ...ont to the top hole of door 4 Turn the hinge fastener tightly to The end Connect harness wire and screw ground wire 5 Insert the water tube far into the coupling Dispenser Model Replacing Refrigerator...

Page 79: ...floor beneath the refrigerator is uneven freezer and refrigerator doors look unbalanced Insert a screw driver flat tip into a groove of the right wheel bottom of refrigerator and turn it clockwise un...

Page 80: ...the filter at least once every 6months When attaching the filter place it for easy access removing replacing 6 After installation of refrigerator and water line system select WATER on your control pa...

Page 81: ...Water tube Be careful to follow the direction of the nut 3 Insert the Water Tube into the top of Water Valve turn the nut clockwise to fasten it The Water valve is to the right of the motor 4 Check f...

Page 82: ...81 10 5 Dispenser Water Flow...

Page 83: ...FRU 541D 1 1 15 3012519210 GUIDE CAB W TUBE A AS L1525 1 1 16 3011444100 COVER GUIDE CAB W TUBE A PP 1 1 17 3011202000 CLAMP TUBE PA 66 5N 2 2 18 3019974800 S PART FILT WATER AS FR S660CW CD 1 1 19 30...

Page 84: ...1 1 1 44 3018500500 M BELL AS FRU 571I 1 1 1 1 44 1 3015916100 MOTOR C FAN AS DC 2213DWCA 3 1 1 1 1 44 2 3011834700 FAN ABS OD3 17XD150 1 1 1 1 45 3016808100 DRYER AS C1220T 1 1 1 1 46 3011497000 COV...

Page 85: ...2 3011109230 CASE NANO FRAME 3011109200 CASE FRAME 3011114630 CASE NANO FRAME 3011114600 CASE FRAME 80 3018701800 DEO ANTI AS W40XT5XL40 1 1 1 1 1 1 81 3011445900 COVER RETURN DUCT PP 1 1 1 1 1 1 82 3...

Page 86: ...Y 220 240V 50Hz 116 3012520510 GUIDE ICE CRUSHER L ABS 1 1 117 3012517710 GUIDE ICE CRUSHER R ABS 1 1 118 3011115202 CASE I CRUSHER AS FRU 541D 1 1 3001401701 COVER F FAN AS FRU 571I 1 1 3001401711 CO...

Page 87: ...8125800 SWITCH MICRO VP333A 2D x x 1 1 3013600020 240V 15W x x 3013600050 110V 15W x x 138 3010544000 BOX DISPNS I SHUT AS FRU 541D x x 1 1 139 3012406900 GRILLE DISPNS ABS x x 1 1 3001401040 COVER F...

Page 88: ...577I SUH5E 3000067720 FRU 577I ISG3E 3000067770 FRU 577B TSG5H 3000067780 FRU 57B MWH4L 3000067760 FRU 54BD TSH5L 3000067700 FRU 547F SUH5E 3000067750 FRU 54BF TSH5L 161 1 3012318910 GASKET R DR AS P...

Page 89: ...145250 350VAC 5 3016401170 3811402200 S S R600A 265RHB S330 3018129600 EGZ90CLC 3956190M50 350VAC 5 3016401170 3001409900 EMBRACO 213PFB S220 3018129630 2 Power Cord 88 Reference Remark 220 240V 50Hz...

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