Daewoo FR-540N Service Manual Download Page 1

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Service Manual

Refrigerator

Model:FR-540N
FR-540NT

DAEWOO ELECTRONICS CO., LTD.

S/M No. : FR540NT010

✔

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 (http://svc.dwe.co.kr).

Summary of Contents for FR-540N

Page 1: ...S CO LTD S M No FR540NT010 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 http svc dwe co kr ...

Page 2: ... 2 3 Wire diagram 3 4 Name of parts 4 5 Air flow diagram 5 6 Refrigerant cycle diagram 7 7 Machine room view and part list 8 8 Main components 9 9 Door color specification 13 10 Exploded view and parts list 16 11 Electronic function 22 ...

Page 3: ...onvection Refrigeration System Air Forced Convection Defrost System Fin Evaporator Forced Defrost Operation Automatic Start Stop Cold Control Adjustable Button Capacity Freezer 119 122 Refrigerator 315 332 Total 434 454 External Dimension Height 1768mm 1788mm Width 770mm 768mm Depth 700mm 718mm Net Weight 89Kg 89Kg ...

Page 4: ...2 EXTERNAL VIEW 2 760 31 5 595 770 1422 5 700 53 3 770 568 11 1066 1768 121 712 24 24 136 1015 511 22 24 60 760 ...

Page 5: ...ON D HTR COMP DR S W F F M HARNESS 14PIN BL X 2 GY X 2 VT BK BK BL YW BK WH RD BR RD WH DEFROST HEATER GY TEMP FUSE BL BK X 4 FM FM F F M R F M RD BK DR S W 2 1 3 4 BK COMPRESSOR BK P RELAY 1 2 4 3 BR L BL GN YW M A PLUG RD R ROOM LAMP BL BL YW YW RD F ROOM LAMP YW F PCB M PCB ...

Page 6: ...e 15 Adjustable Foot 16 Box Vegetable R 17 Freezer Pocket 18 Pocket A 19 Egg Case 20 Multi Pocket 21 Pocket B 2 FR 540NT 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 17 18 19 20 21 16 1 Freezer Lamp 2 Freezer Shelf 3 Case Icing 4 Guide Icing 5 Ice Box 6 Chilled Door 7 Chilled Case 8 Deodorant 9 Refrigerator Side Louver 10 Refrigerator Shelf 11 Cover Cubic Duct 12 Crisper Cover 13 Box Vegetable L 14 Front G...

Page 7: ...cket is in the middle When storing margarine or cheese for one or two weeks make use of the refrigerator shelf Crisper Suitable in storing fruits or vegetable Wrapping can prevent from dryness Freezer room Do not put any bottle such as beer or beverage because it can be frozen and broken Refrigerating room This model is multi flow type which flows out cold air from each shelf space The hot air aft...

Page 8: ...orage of fishes and meats Refrigerator pocket It is good for the storage of beer and beverage etc Crisper It is suitable to store vegetable and fruit The moisture panel which is attached to the cover maintains the humidity properly Vegetable and fruit would be better to be packed with clean wrap foils Multiple outlet of cooling air Please don t put in vegetable etc which contain moisture It might ...

Page 9: ... ACCUM HOT PIPE DRYER COMP AUX HOT PIPE AUX HOT PIPE BACK PLATE PIPE C O M P R E S S O R A U X I C O N P I P E H O T P I P E A U X I H O T P I P E B A C K P L A T E P I P E D R Y E R C A P I T U B E E V A P O R A T O R A C C U M U L A T O R S U C P I P E COOLING PIPE ...

Page 10: ...ESSOR 9 DRYER 17 BIND WIRE 2 COMPRESSOR 10 PIPE CON SUC 18 PLUG POWER AS 3 ABSORBER COMPRESSOR 11 VIBRATIONPROOF GUM 19 SCREW MACHINE 4 WASHER COMP T 12 PIPE CON AUX 20 PIPE CON HOT 5 SWITCH P RELAY AS 13 HOSE DRAIN B 21 TAPE OPP 6 BAND RELAY 14 VIBRATIONPROOF MASS 22 PIPE CON P A 7 TAPE COTTON 15 SCREW TAPPING 8 PIPE SERVICE 16 COVER CONNECTOR ...

Page 11: ...V 60Hz 115 120V 60Hz 127V 60Hz 220V 50Hz 220V 60Hz 230V 50Hz 240V 50Hz Relay model X 419RHBYY 52 427THBYY 52 X 213THBYY 52 197SHBYY 52 X 213THBYY 52 Part code X 3018105673 3018105690 X 3018105651 3018104102 X 3018105651 Refrigerant R134a Voltage 100V 50 60Hz 110V 60Hz 115 120V 60Hz 127V 60Hz 220V 50Hz 220V 60Hz 230V 50Hz 240V 50Hz Relay model X 445RHBZZ 52 445RHBZZ 52 X 276THBYY 52 X 276THBYY 52 P...

Page 12: ...240V 50Hz Spec X 3211DWBFM 3211DWBFU X 3211DWBFQ 3211DWBFE 3211DWBFS Part code X 3011800850 3011801000 X 3010027220 3015902600 3011801030 Refrigerant R12 R134a Voltage 100V 50 60Hz 110V 60Hz 115 120V 60Hz 127V 60Hz 220V 50Hz 220V 60Hz 230V 50Hz 240V 50Hz Spec X 148W X 148W Part code X 3012801300 X 3012801000 Refrigerant R12 R134a Voltage 100V 50 60Hz 110V 60Hz 115 120V 60Hz 127V 60Hz 220V 50Hz 220...

Page 13: ... 127V 60Hz 220V 50Hz 220V 60Hz 230V 50Hz 240V 50Hz Part code X 5EPK057613 X X 5EPK057612 X X 5EPK048030 Refrigerant R12 R134a Voltage 100V 50 60Hz 110V 60Hz 115 120V 60Hz 127V 60Hz 220V 50Hz 220V 60Hz 230V 50Hz 240V 50Hz Spec X N803 X X N803 Part code X 3014303620 X X 3014302540 Refrigerant R12 R134a Voltage 100V 50 60Hz 110V 60Hz 115 120V 60Hz 127V 60Hz 220V 50Hz 220V 60Hz 230V 50Hz 240V 50Hz Spe...

Page 14: ...THER COUNTRY 3 4006D17101 KP 30 FOR AMERICA 4 401PD17101 KP 211 FOR JAPAN TAIWAN 5 3011300801 BP 3PIN 6 3011303010 267 FOR CHILE 7 3011315310 FOR ISRAEL 8 3011303050 BS 1363A FOR U K MIDDLE ASIA SINGAPORE MALAYSIA 9 3011301200 KP 551 550 FOR CHINA AUSTRALIA Upper power cord s part code is only for lead wire without any kinds of terminal or housing ...

Page 15: ...igh glossy sheet lamina sheet bright PCM sheet lamina sheet bright PCM Part code X PFDU2UJ110 X X X PFDU2UJ115 X X 2 FR 540NT 1 ASSEMBLY URETHAN FREEZER DOOR 2 ASSEMBLY URETHAN REFRIGERATOR DOOR Refrigerant R12 R134a Color type Dull lamina High glossy Normal PCM High glossy Dull lamina High glossy Normal PCM High glossy sheet lamina sheet bright PCM sheet lamina sheet bright PCM Part code X PFDT1U...

Page 16: ...BLE 1 PCM type NO COLOR CHIP COLOR NAME 1 P WITH WH069 2 94 L GRAY GY158 3 95 L GRAY GY259 4 94 M GRAY GY331 5 95 M GRAY GY335 6 97 M GRAY GY267 7 M D GRAY GY750 8 N BLUE BL718 9 MINT GREEN GN206 10 97 BEIGE BE215 ...

Page 17: ... sheet type NO COLOR CHIP COLOR NAME 1 P WITH WH069 2 94 L GRAY GY158 3 95 L GRAY GY259 4 94 M GRAY GY331 5 95 M GRAY GY335 6 97 M GRAY GY267 7 M D GRAY GY750 8 N BLUE BL718 9 MINT GREEN GN206 10 S GOLD 11 G GREEN ...

Page 18: ...10 EXPLODED VIEW AND PARTS LIST 16 1 FR 540N 1 Exploded view ...

Page 19: ...RESSOR 1 REFER TO 9 18 3010302512 BASE COMP SAS 1 19 3014502304 PLATE AXCON AS 1 20 3010100201 ABSORBER COMP NR H 40 4 21 SWITCH P RELAY AS 1 REFER TO 9 22 4019H09030 SPECIAL WASHER SWRH 4 23 3816100100 RELAY BAND SK 5 0 7T ZN 3 A 1 24 3010604802 BRACKET ADJ FT L AS 1 25 3010604902 BRACKET ADJ FT R AS 1 26 3012900620 HINGE M AS D C 1 27 3016000220 SPECIAL SCREW M6 x 16 SWCH22A 2 28 MOTOR F AS 1 29...

Page 20: ...T R DR AS PVC S 1 60 3012900401 HINGE U AS MF ZN5 C 1 61 7400108511 WASHER PLAIN PW 1 5T 8 5 20 MFZN 1 62 3016000600 SPECIAL SCREW M6 x 20 4 63 CORD POWER AS 1 REFER TO 12 64 3011420010 COVER V CASE AS 1 65 3014504600 PLATE VEGETB BOX DV GPPS 1 66 3019002000 POCKET MULT GPPS T3 0 2 67 3019004100 POCKET BOTL A GPPS 1 68 3019002600 POCKET BOTL B GPPS T3 0 1 69 3010507400 CASE VEGETB L GPPS 1 70 3011...

Page 21: ...19 2 FR 540NT 1 Exploded view ...

Page 22: ...10604902 BRACKT ADJFT R 1 23 4010G30661 BOILD PP T1 3 1 24 3011400600 COVER CAB BRAK 1 25 3010507410 BOX VEGTB R GPPS 1 26 3011705620 CHILD DR SAN 1 27 3017000701 EVAPORATIOR AS 1 28 3017200010 FUSE TEMP AS SW 103T 77 C 10A 1 29 3014801201 SENSOR F D AS PTC KB38 FD6 AB TYPE 1 30 GLASS TUBE HTR AS 1 REFER TO 10 31 F FAN MOTOR AS 1 31 1 MOTOR FAN F 1 REFER TO 10 31 2 3011800400 FAN ABS Ø 110 1 32 R ...

Page 23: ...12303000 GASKET F DOOR PVC S 1 50 3019002100 POCKET F T GPPS T3 0 1 50 1 3019002200 POCKET F U GPPS T3 0 1 51 3017901311 SOCKET R LAMP AS AC 250V 1A 2 51 1 LAMP AS 2 REFER TO 10 52 3014201420 CONTROL PANEL F AS 1 52 1 3014304220 F PCB AS 1 53 R DOOR URT AS 1 REFER TO 13 54 3017404400 LINER R DOOR ABS 1 4T 1 55 3012303100 GASKET R DOOR PVC S 1 56 3019002000 POCKET MULTI GPPS T3 0 2 57 3019000200 PO...

Page 24: ...is controlled automatically according to the customer s purpose of use The temperature inside the freezer and refrigerator room can not be controlled manually Quick freezing is operative This function continues until the user releases it The comp and fan in the refrigerating room operate for 40 min Quick fridge time appears for the first 5 sec and then returns to clock time Quick fridge remaining ...

Page 25: ...ction is canceled automatically 1 The temperature can be controled by 6 steps with the freezer temperature button 3 4 5 E F 1 2 3 2 The bar LED will indicate according to the freezer temperature button The bar LED is fully illuminated once and then illuminated up to the each temperature level 3 A single upper bar LED on off according to the COMP off on 2 Function table FUZZY QUICK FRIDGE HOUR FRID...

Page 26: ... of D sensor error R fan operation is connected with the COMP 6 When the COMP is off and the temperature of the D sensor is above 3 C the R fan turns off regardless of the R sensor 7 The R2 sensor is only used in detecting low cooling COMP F FAN C FAN ON OFF 1 1 1 30 COMP OFF COMP ON E F 21 23 6 16 17 9 1 21 23 6 16 17 9 2 22 25 0 17 18 9 3 23 26 4 18 20 0 4 24 27 9 19 21 1 5 25 29 6 20 22 3 R fan...

Page 27: ...ice in 5 sec then quick freezing mode is canceled 1 If press the quick fridge button the clock mode is changed to quick fridge time mode Quick fridge mode is worked for 40 min 2 Time chart of the quick fridge mode FUZZY QUICK FRIDGE HOUR FRIDGE TEMP QUICK FREEZING FREEZER TEMP MIN TIME SET FRZ FUZZY FRESH CLEAN E F 1 2 3 F 4 5 3 2 1 E F Q F 5 4 Q REF FUZZY QUICK FRIDGE HOUR FRIDGE TEMP QUICK FREEZ...

Page 28: ...ol the freezer and fridge temperature during the fuzzy function 1 After the power is loaded accumulated door freezer and fridge door open time is recorded every 2 hours for 24 hours The data are recorded until the power is off 2 Averaged data are classified according to following table 3 In fuzzy function it operates by predicting the condition in 2 hours with above data F 5 4 3 2 1 E F Q REF F 5 ...

Page 29: ...eration ratio from to is over 80 2 In it goes directly to defrost mode if the COMP operation ratio from to is over 80 3 In it enters to defrost mode unconditionally 1 Defrost step E D B D C B C Pre cool R fan D heater Pause Fan delay defrost defrost COMP on off off off on F fan on off off off off R fan on on off off off D heater off off on off off End of defrosting A For 150 min B MIN time 5 hours...

Page 30: ...the normal defrost is enabled in 14 hours of accumulated COMP on time NO NO NO NO YES YES YES YES Deciding defrosting period Entering defrosting mode Is it max accumulated COMP ON time Is it min accumulated COMP ON time Is the percentage of operation so far above 80 YES Is the resuting accumulated door open time 10 min NO NO YES Is the percentage of operation so far above 80 NO Will it be min door...

Page 31: ...us alternately in 15 sec intervals 3 F fan and R fan operation is same as below 1 This function operates when fridge temperature and quick fridge button are pressed and plug the power code 2 At this time the custom LED is normal and all devices are off 3 After 10 min all devices operate normally Normal status FRZ FRESH CLEAN E F 1 2 3 F F 4 5 5 4 3 2 1 E F Q Q REF Fuzzy status FRZ FUZZY FRESH CLEA...

Page 32: ...f 2 During Pre cool step in defrost mode 6 min delay is unavailable 1 Press the quick freezing button 3 times when press the quick fridge and fridge temperature button 2 If press the freezer temperature button then stage changed like follow R1 sensor temperature D sensor temperature F sensor temperature Error code 3 Auto return to the normal time is 8 min without pressing the freezer temperature b...

Page 33: ...rror code is refered to 3 Self diagnosis table 1 Alarm buzzes 1 sec after 3 sec of initial power on 2 Alarm buzzes whenever each switch in F PCB is pressed 3 If the door is opened for more than 1 min chirpy sound alarm buzzes FRZ FRESH CLEAN E F 1 2 3 F F 4 5 5 4 3 2 1 E F Q Q REF FRZ FRESH CLEAN E F 1 2 3 F F 4 5 5 4 3 2 1 E F Q Q REF FRZ FRESH CLEAN E F 1 2 3 F F 4 5 5 4 3 2 1 E F Q Q REF ...

Page 34: ...vention function by R2 sensor is disable Heater turns on for 45 minutes irrespective of D sensor R fan can be on off by R1 sensor only when compressor on The R fan and F fan operates irrespective of the door switch when the compressor is on Normal operation Normal operation Short circuit Wire disconnection Short circuit Wire disconnection Short circuit Wire disconnection Short circuit Wire disconn...

Page 35: ...24 26 7K R2 3 30 1K R22 30 9K CC08 R25 CE07 R21 30 9K RT SENSOR R23 15K 12V CC08 CE05 12V CC02 CC06 IC08 CC07 CE01 CC19 0 1uF CC18 0 1uF 1000uF CE01 CE02 1000uF BD2 BD1 CE04 CC01 IC09 IC09 CC06 D4 IN4002 5 4V R13 100ohm R54 CE03 0 1F 5 5V R53 30 1K R44 100 OHM 1N4002 CC03 CC04 IC10 D5 CC02 IC11 5V CC01 R49 R52 R50 J14 CC05 17 19 52 49 50 54 INHIBIT 1 53 55 57 58 59 60 61 62 63 64 51 R41 R42 R43 R4...

Page 36: ...XIN 8MHz XOUT VSS LED TEST KEY KEY DEMO S W POWER OFF CHECK BZ 34 38 37 35 35 33 32 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 D05 BZ1 D6 IC04 R33 R26 CN09 R36 750ohm IC08 IC09 4 3 PCB17 1 2 M PCB CC15 CC10 CC20 CC21 CC23 CE13 CE04 CE05 R48 R45 CE06 CE08 R18 CC17 R49 R50 26 7K R47 30 1K R46 31 4K R44 31 4K CC22 R43 CE07 RT SENSOR R23 15K 12V CC08 CE05 12V CC02 CC06 IC08 CC07 CE01 CC19 0 1uF CC18 0 1uF...

Page 37: ...reezing goes off Quick LED comes ON 1 One time 1 Freezer room temperature control function 2 Adjust temperature with 2 Two times 1 Refrigerature room temperature control function 2 Adjust temperature with 3 Three times 1 HOUR control function 2 Adjust hour with 4 Four times 1 MINUTE control function 2 Adjust minute with 5 Five times 1 Adjust finished 2 Retrun to normal status When the quick refrig...

Page 38: ...zzy mode then fuzzy mode is canceled 1 When press the temperature time control button fridge temperature range blinks Then can control fridge temperature with button 2 Main sensor of fridge room is R1 sensor 3 R2 sensor is used for preventing low cooling 4 R fan on off temperature Temperature ûCResistance k 2 Function table FUZZY TEMP TIME SET QUICK FREEZING QUICK REFRIGERATION FUZZY SURROUND CLEA...

Page 39: ...e quick freezing time shows for 5 sec 4 COMP and F fan go on regardless of F sensor during the quick freezing mode 5 The quick freezing mode is operative even in fuzzy mode 1 When the quick fridge button is pressed it becomes quick fridge mode 2 The quick fridge mode works for 40 min 3 The quick fridge time shows for 5 sec 4 COMP and R fan are on until R1 sensor detects over cooling temperature 7 ...

Page 40: ...ad of high 4 Example 1 Necessary condition of determination defrost 1 COMP operation accumulation time 6 9 12 15 hours 2 COMP operation ratio COMP accumulation time is divided by 3 hours 3 Door open accumulation time 4 Total time COMP on time COMP off time is 60 hours 5 Outside temperature is above 35 C 6 Various error D sensor error F sensor error RT sensor error Door switch error FUZZY TEMP TIME...

Page 41: ...h temperature 1 C higher than the off point which controlles R fan in normal status Start 3 6 9 12 15 COMP on accumulation time Entering into defrosting mode YES YES YES NO YES YES YES YES Start End TOTAL Does the time elapse for 3 hours NO COMP Does the operation time elapse for 15 hours NO NO COMP Does the operation time elapse for 60 hours YES COMP Does the operation time elapse for 6 hours NO ...

Page 42: ...or 35 min 3 Pause 1 Time 4 min 2 All devices are off 4 F fan delay 1 Time 8 min 2 Only COMP and R fan are on 5 R fan delay 1 Time 10 min 2 Only COMP and F fan are on 6 Output control of each step and time limit 1 If press SW01 on M PCB the electric devices become on in order as follows COMP Heater Pause F fan R fan COMP 2 At this time all the custom LED become on 3 Automatic return time is 1 min H...

Page 43: ...al status and fuzzy status alternately in 15 sec intervals 1 If press the quick freezing and quick refrigerating button for 3 sec after power on then delivery function will start 1MIN 1MIN 0 5SEC OPEN 0 5SEC ON ON COMP F FAN OFF OFF CLOSE ON ON DOOR S W OFF F FAN OFF R FAN Normal status Demo status F fan off F fan on Door open R fan off R fan on F fan on F fan off Door close R fan on R fan off Nor...

Page 44: ...each switch in F PCB is pressed 3 If the door is opened for more than 1 min chirpy sound alarm buzzes 4 If adjust temperature the fuzzy button will be not operative and the buzzer will be off 1 When power is loaded for the first time it enters into defrost mode if D sensor 3 5 C Defrost mode starts from Pre cool step 1 Press the fuzzy button 5 times when press temperature time control button After...

Page 45: ...quick refrigerating button After that error mode 2 If press the temperature time control button then will change the status on custom LED R1 sensor temperature F sensor temperature D sensor temperature Error code If there is no error then error code will not occur 3 All error code will be reset if they become normal 4 Error code is refered to 3 Self diagnosis table J1 R2 R1 R1 SENSOR Off point tem...

Page 46: ...re out of order then RT sensor control R fan Room temperature 14 C R fan is off Room temperature 26 C R fan is on for 15 minutes R fan is off for 5 minutes 14 C Room temperature 26 C R fan is on for 2 minutes R fan is off for 18 minutes Compressor F fan is on for 24 minutes Compressor F fan is off for 16 minutes Regarded by R2 sensor Detecting weak cooling is impossible Heater is on only for 35 mi...

Page 47: ...DOOR S W CHECK TEST XTIN 32 768KHz XTOUT RESET XIN 8MHz XOUT VSS LED TEST KEY KEY DEMO S W POWER OFF CHECK TMP87CH46N BZI 34 38 37 36 35 33 32 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 IC07 R46 R45 CN05 R49 750ohm IC08 IC04 4 3 PC817 1 2 M PCB 42 30 29 28 26 CC15 CC19 CC20 CC21 CC22 CE11 CE04 CE05 R39 R36 CE06 CE08 R17 R40 R41 25 7K R37 31 4K Jump option R47 2 15K R38 30 1K CC21 R34 CE07 R22 29 4K RT...

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