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BSH B20CS50 Service Manual Download Page 5

4

12. Refrigerator pocket

6. Freezer case

7. Water Filter

1. Ice cubes storage case

13. Refrigerator case

11. Movable Egg case

5. Freezer pocket

10. Refrigerator shelf

4. Freezer shelf

9. Refrigerator light

3. Water/Ice Dispenser

8. Dairy pocket

2. Freezer light

Refrigerator Compartment

Freezer Compartment

(Model : B20CS50SN*  )

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4

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2-2. Name of Each Parts

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Summary of Contents for B20CS50

Page 1: ...Caution S M No...

Page 2: ...Compartment 8 3 Refrigerator Compartment 8 4 Operation Noise of Refrigerator 8 5 Door 8 6 Adjusting F R Door Balance 9 COOLING CYCLE HEAVY REPAIR 9 1 Summary of Heavy Repair 9 2 Precaution during Heav...

Page 3: ...m 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 EXTERNAL VIEWS 2 1 External Size...

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

Page 6: ...ilter 1 Ice cubes storage case 15 Magic cool zone 11 Refrigerator shelf 5 Freezer pocket 10 Shelf wire 4 Freezer shelf 9 Refrigerator light 3 Water Ice Dispenser 8 Dairy pocket 2 Freezer light Refrige...

Page 7: ...6 Freezer Compartment Refrigerator Compartment 2 3 Cold Air Circulation...

Page 8: ...14C3 Texas Instruments Model Name PTC 250VAC 12uF Running Capacitor RSCR Motor Type EGZS80HLP Model Comp C O O L I N G ID0 7 T0 55 L2200 Capillary Tube Molecular Sieve XH 9 Dryer Fan Cooling System Co...

Page 9: ...n Motor D4612AAA21 DC13V 2050 100 rpm Freezer Fan Motor E L E C T R I C A L P A R T S Specification Item AC250V 10A 77 Fuse Temp Defrost PT 38 Freezer Defrost S E N S O R AC110V 5W Dispenser Box H E A...

Page 10: ...set Dispenser Ice Maker Lock Lock FCP C LED 3 Super Freeze Button When this mode is chosen the icon Super Freeze is ON Refrigerator Freezer 4 39 18 0 After six month LED ON Water Filter Change Icon Di...

Page 11: ...6 month after are first power input 2 After six months icon is ON 3 How to reset Filter information Push the Water Filter Reset button for 3 seconds after change 9 Lock button 1 This button stops oper...

Page 12: ...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 10 12 hours Room Temperature 35 Comp operating rate 85 Total...

Page 13: ...over 12 hours Total time is over 60 hours Comp operating time is over 6 hours End Defrosting start Comp operating time is over 2 hours Comp operating rate is more 85 NO YES NO NO YES Total door open...

Page 14: ...Time 7 minutes Comp F fan R fan Heater etc OFF Fan Delay 1 Time 5 minutes Comp ON F fan R fan Heater OFF Pause Fan Delay Heater Defrosting 2 How to start In Lock mode push Refrigerator Set button 5 ti...

Page 15: ...PCB buttons 2 Door Switch 3 Initial Power Input Buzzer 4 5 Dispenser and Flap Heater Control 4 6 Buzzer or Alarm Control 1 Control Refrigerator Compartment Lights R Lights turn ON OFF by R door switch...

Page 16: ...electrical 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 Dispenser button 5 times while pushing Freezer Set...

Page 17: ...p of Refrigerator R36 R SENSOR standard resistance in normal mode 31 4 In case of weak ref 1 Cut J18 to increase the standard resistance by 2 1 5 down 2 Cut J18 J19 to increase the standard resistance...

Page 18: ...r 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 REMA...

Page 19: ...rt full 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 t...

Page 20: ...er 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 Cause Sw...

Page 21: ...play change Dispenser Ice Maker Lock 5 times Ice maker test Dispenser Water Filter Reset 5 times EEPROM clear Freezer Set Super Freeze 5 times Error display Refrigerator Set Freezer Set Dispenser 5 ti...

Page 22: ...Lock button or it is automatically reset after 4 minutes INPUT CONTROL OBJECT CONTENTS REMARKS 4 12 Filter information Function to adjust the amount of water Temperature Control Buttons 88 Display CLE...

Page 23: ...econd and 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 suppl...

Page 24: ...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 25: ...Main ON Y N Start Water Ice Valve ON Water flow Pulse Count 0 1sec passed after water valve ON Water flow Pulse 10 Water flow Pulse spec Pulse spec Flow Sensor Error mode operation water supply time t...

Page 26: ...penser button Ice Maker Lock button Freezer door switch Dispenser lamp Crusher motor Flap solenoid Crusher solenoid Dispenser water valve 1 Initial mode water Mode change Water Crushed ice Cubed ice W...

Page 27: ...art Crushed Ice Cubed Ice Water Delay time A 0 5sec B 0 5sec C 2 0sec D 5 0sec E 0 3sec 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 P...

Page 28: ...ator Compartment 00 2 In case change of Freezer Compartment ON OFF temperature 0 2 0 2 Range of Temp Change Temp Change Setting Value 0 072 00 30 00 30 Range of setting Value Super Freeze Freezer Set...

Page 29: ...Er display if sensor is disconnected or short Press Select button 1 time OP display forced damper open Press Select button 2 time CL display forced damper close 2 How to stop It stops automatically i...

Page 30: ...29 5 WIRING DIAGRAM...

Page 31: ...r Automatic Ice Maker Geared Motor R Sensor F Door Switch Water Filter Freezer Compartment Front PCB Dispenser Button F Lamp F Fan Motor Cover R Lamp 6 2 Inner View Refrigerator Compartment R Fan Moto...

Page 32: ...Compressor Condenser Dryer Running Capacitor OLP PTC Water Valve Condenser Fan Motor Tray Drip Power cord 6 3 Evaporator 6 4 Machine Compartment Water Pipe D Sensor Evaporator Temp Fuse Defrost Heate...

Page 33: ...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 34: ...Assembly SPEC CRITERION GOOD 2 2 5 2 1 2 3 DEFECTIVE Change the Geared Motor PARTS HOW TO CHECK GOOD 42 5 39 9 44 1 DEFECTIVE Change the Cube Sol Valve Check resistance value of 2 terminals with a Mul...

Page 35: ...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 36: ...RITERION Good 58 10 52 2 63 8 DEFECTIVE 0 Change Sol Valve PARTS HOW TO CHECK GOOD 72 8 66 2 77 8 DEFECTIVE Change Flap Heater AS SPEC NAME SOL2003 02D VOLTAGE 110 115V 60Hz VOLTAGE DC 12V 2W Check re...

Page 37: ...trical devices to from MICOM 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 device does not work 2...

Page 38: ...Check 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 Remove 2 pin housing...

Page 39: ...terminals with tester GOOD 4 4 50k It depends on ambient temperature DEFECTIVE Change the sensor Full ice sensing switch GOOD DEFECTIVE Change the switch Level Switch Tact Switch Blue Circle Terminals...

Page 40: ...assembling How to replace Front PCB Start Power input to Main PCB is ok Main PCB Fuse is disconnected Voltage DC12V 14 5V 5V on Main PCB is OK Wire connection of Front PCB is OK Check power connectio...

Page 41: ...if refrigerant leak is found repair it N N Y Y Y N N Defrost heater 192W 69 Left lower side of evaporator 4th pipe from buttom OLP PTC is OK Does Comp work Any error code on Front PCB F Fan C Fan wor...

Page 42: ...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 43: ...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 44: ...43 Removing and replacing Freezer parts 1st None 2nd None 3rd Defrost Heater Housing Temp Fuse D Sensor Defrost Heater Temp Fuse Housing 1st F Fan Motor Housing 2nd D Sensor Housing...

Page 45: ...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 46: ...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 47: ...Y N Change the R 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 Front PCB R Fan works ok R Fan motor is ok Wiring connection is...

Page 48: ...ction Breaking of Refrigerator Lights Wires Change of F Lights Remove screws of light cover Hold the bottom of cover and pull forward to remove Change the light bulbs AC115V 25W screw Change of F Door...

Page 49: ...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 50: ...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 51: ...light cover Hold the bottom of cover and pull forward to remove Disconnect light and sensor connector Remove screws with a screw driver Freezer Shelf Disassembly 1 Remove 2 fixtures of shelf backside...

Page 52: ...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 53: ...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 54: ...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 55: ...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 56: ...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 57: ...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 58: ...tor insertion to Main PCB is OK 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 chang...

Page 59: ...screw with 3 screws Close F R doors and loosen 3 hinge bolts Insert hex wrench into the hinge hole and turn clockwise Up or counterclockwise Down After adjusting door height fasten the 3 hinge bolts b...

Page 60: ...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 61: ...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 62: ...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 63: ...re the weight Calculate the 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 Pi...

Page 64: ...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 65: ...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 66: ...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 67: ...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 the wate...

Page 68: ...front 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 Replacing Refrigerator Door 1 Insert...

Page 69: ...fasten the hinge bolts tightly and screw the front cover In case refrigerator door is lower than freezer door 1 Insert a screw driver flat tip into a groove of the right wheel bottom of refrigerator a...

Page 70: ...ks Compression Nut 1 4 Ferrule sleeve Refrigerator connection Water Main Valve 6 Plug the power cord and press the water dispenser button for 2 3minutes to flush out the tubing 7 Check the water leak...

Page 71: ...70 10 5 Dispenser Water Flow...

Page 72: ...00 COVER GUIDE CAB W TUBE A PP 1 1 1 1 1 1 1 17 3012026900 FIXTURE WATER FILT I AS FRU 546D 1 1 1 1 1 1 1 18 3019504700 TUBE WATER G LDPE OD1 4XL2000 1 1 1 1 1 1 1 19 3019504800 TUBE WATER H LDPE OD1...

Page 73: ...1 1 1 1 1 50 3014461510 PIPE WICON AS TSW OD4 76XT0 7 1 1 1 1 1 1 1 53 3015916100 MOTOR C FAN AS D4612AAA22 1 1 1 1 1 1 1 54 3018410400 M BELL B PP A353 HB 1 1 1 1 1 1 1 55 3018410300 M BELL A PP A353...

Page 74: ...000 TANK WATER AS FRU 541D 1 1 1 1 1 1 1 3012529500 GUIDE CHANGE RM L ABS SCRAP X X X X 1 1 1 3012529711 GUIDE CASE C L AS HIPS 1 1 1 1 X X X 3012529600 GUIDE CHANGE RM R ABS SCRAP X X X X 1 1 1 30125...

Page 75: ...R F FAN AS HIPS 1 1 1 1 1 1 1 126 3014531901 PLATE F LAMP SGCC T0 6 1 1 1 1 1 1 1 127 3017907500 SOCKET F LAMP AS FRU 546D 1 1 1 1 1 1 1 128 3013602900 LAMP F R AC 125V 25W B 1 1 1 1 1 1 1 130 3015510...

Page 76: ...15W 110V 60HZ 1 1 1 1 1 1 1 3010544010 FRU 543D X 1 1 X X 1 X 3010544020 FRU 543D WH 1 X X X 1 X X 3010544030 FRU 543D BK X X X 1 X X 1 3001401800 FRU 543 SPRAY X 1 1 X X 1 X 3001401860 FRU 543 SPRAY...

Page 77: ...1 1 1 164 3019028810 POCKET DAIRY AS FRU 546D 1 1 1 1 1 1 1 165 3019028600 POCKET R M AS HIPS GPPS BL 1 1 1 1 1 1 1 166 3019029800 POCKET GALLON AS FRU 546D 1 1 1 1 1 1 1 167 3019028700 POCKET R S AS...

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