LG LRSP2031BS User Manual Download Page 24

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Summary of Contents for LRSP2031BS

Page 1: ...ctrical components when replacing them 7 Make sure the hook is correctly engaged Remove dust and foreign materials from the housing and connecting parts 8 g Do not fray damage machine heavily bend pull out or twist the power cord Please check the evidence of moisture intrusion in the electrical components Replace the parts or mask it with insulation tapes if moisture intrusion was confirmed 10 Do ...

Page 2: ...utton Cover Hinge Cover PWB Door rack ice maker Shelf Steel TIGlass Drawer or Shelf optional Freezer Compartment Refrigerator Compartment f Milk product corner Shelf J Door rack optional Box drawer Shelf rack Lower Cover Conversion Switch MeatsNegetables Humidity Switch drawer Meat drawer 14 ...

Page 3: ...r is lower than that of refrigerator compartment 2 If the height of freezer door is higher than that of refrigerator compartment Height Difference Height Difference Insert a driver 0 into the groove O of adjusting screw and rotate driver in arrow direction clockwise until the refrigerator becomes horizontal Insert a driver 0 into the groove O of adjusting screw and rotate driver in arrow direction...

Page 4: ...ectly to the water tap Please confirm the following installation parts Valve Feed Rubber Packing Connector Pipe Connector Pipe Tape Teflon Class Conve rtible Water Valve Water Conn ector Shape and Spec Connector MECH Pipe Nomenclature Valve Feed Connector MECH Pipe ConversionConnector 3 4 BalanceCenector 3 4 Packing e24x3t 4932JA3003B ConversionConnector W25 BalanceConectoor W25 Packing e23x3t P N...

Page 5: ...t is connected to hot water line trouble may occur Please check rubber packing when connecting feed pipe Pipe Connector B Valve How to wind Sealing Tapes Single Lever Type Faucet general Two Hands Type Faucet Feed Valve General Type Single Lever Type Faucet one hole tech type and hand spray Feed Valve 2 Water Supply 1 After the installation of feed water plug the refrigerator to the earthered wall...

Page 6: ... less water will come out due to pressure drops Use standard feed tube to prevent leaking Outternal Filter 1 Filter Fixation 1 Connect feed tube to the filter outlet and water valve connecting tube 2 Fix the filter at proper place around the sink where it is easy to replace the filter and to receive the cleaning water Please consider the length of tube shall be less than 12m when locating filter 3...

Page 7: ...trol box and fasten it by turning it clockwise by 90 degrees Note Check that the guideline and the fastening indication line are aligned Substitute ap Separation _ _ of red cap____ _Aidchkes i n 2 Replacement of water filter While holding the lower part of the filter turn it counterclockwise D by 90 degrees and pull it down Note Check that the guideline and the loosening indication line are aligne...

Page 8: ...he bell rings ding dong and ice tray rotates and water comes out from the icemaker water tube 3 The water shall be supplied two or three times into the tray The amount of water supplied for each time is small Put a water container under the ice tray and press test switch 4 When ice tray rotates the water in it will spill Collect the spilt water and throw away into the sink 5 When ice tray has fini...

Page 9: ...er supplied is complete check the level of water in the ice tray Confirm the amount of water Water Supplying Time Control Option SWITCH NO Water Suppling StWl S W2 S W3 Time OFF OFF OFF 6 5 Sec ON OFF OFF 5 5 Sec OFF ON OFF 6 Sec ON ON OFF 7 Sec OFF OFF ON 7 5 Sec ON OFF ON 8 Sec OFF ON ON 9 Sec ON ON ON 10 Sec _ Optimum level 1 The water supplying time is set at five seconds when the refrigerator...

Page 10: ... C 20 5 C 22 C 15 C 17 C 19 C 20 5 C 22 C 16 5 C 18 C Refrigeration 6 C Control 3 C 1 5 C O C 7 C 4 5 C 2 C 1 C O C 4 5 C 3 C The temperature call valy _3 depending on tile load condition 127V 60Hz t t0 115V 60Hz 115V 60HzRating ONLY TAIBEI 1 When power is initially applied or reapplied after power cut Medium is automatically selected 2 When the temperature selection switch in the freezer and refr...

Page 11: ...3 When ice maker does not operate smoothly Ice is lumped together When ice is lumped together take the ice lumps out of the ice storage bin break them into small pieces and then place them into the ice storage bin again When the ice maker produces too small or lumped together ice the amount of water supplied to the ice maker need to adjusted Contact the service center If ice is not used frequently...

Page 12: ...or performs ONIOFF control by linking with the COMP 2 It controls at the single RPM without varying RPM 3 Failure sensing method is same as in fan motor of freezing fan motor refer to failure diagnosis function table for failure display 2 6 Door opening alarm 1 Buzzer generates alarm sound if doors are not closed even when more than a minute consecutively has passed with doors of freezing cold sto...

Page 13: ... Load Operation Sequence Remark When temperature of a frost removal sensorbecomes morethan 25 0 In purchase movement When __ temperature of a _ frost removal sensor becomes Iess than 25 0 _ In power failure service e m o m Test mode 1 Compulsory function Test mode2 Compulsoryfrost removal 0 5 0 3 F FAN 03 STEP 03 HOME POWER sec COMP sec sec MOTOR sec BAR C FAN DAMPER HEATER ON ON ON ON ON 05 FROST...

Page 14: ...orAbn rmal freezer F _6 circuitedFreezer sensoris cut or short 115 minoff5 rainon StandardRPM O 2 Abnormal Uppershelfrefrigeratorsensor is O Standard O O Open fcr refrigeratorsensor I Rf uppershelf cut orshort circuited RPM in the refrigerator 3 Abnormal Note 1 Lowershelfrefrigeratorsensor is Standard refrigeratorsensor cut orshort circuited RPM 2 R2 lower shelfin the refrigerator 4 Abnormaldefros...

Page 15: ...ng 4 In finishing test mode always pull the power cord out and then plug in it again for the normal state 5 If nonconforming contents such as sensor failure are found during performance of test mode release the test mode and display the failure code 6 Even if pressing the test button during failure code display test mode will not be performed MODE Test 1 Test 2 HANDLING Press TEST s w once Press T...

Page 16: ... side and the feedback part IC3 IC4 transferring it to the primary side Caution Since high voltage DC310V is maintained at the power terminal please take a measure after more than 3 minutes have passed after removing power cords in the abnormal operation of a circuit Voltage of every part is as follows Part VA1 CE1 Vdc CE2 Voltage 220 Vac inspection 16 Vdc CE3 CE4 CE 12 Vdc 15 5 Vdc 5 Vdc CON1 BDI...

Page 17: ...ICON o XOUT 31 31 XIN ICI HICON XOUT 1 3 Reset circuit The reset circuit is circuit allowing various parts such as RAM inside of MICOM IC1 to initialize and the whole of function to start from the initial status when initial power is input or when power is applied again to MICOM by a spontaneous power failure LOW voltage is applied to the reset terminal of MICOM in the beginning of power supply fo...

Page 18: ...tch to determine door open at MICOM Since a door switch of the home bar is connected to door switch C D of the cold storage room it senses door opening if even one of both is opened The fan motor is immediately stop if opening doors of the freezing room or cold storage room at the TEST mode and it immediately operates if closing them 1 GR L207ERA GR L247ERA Frost Removal AC Converting Water Tank T...

Page 19: ...connected to the door open sensing circuit toward both ends of switch to determine door open at MICOM Since a door switch of the home bar is connected to door switch C D of the cold storage room it senses door opening if even one of both is opened Frost Removal AC Converting Homebar Type of Load COMP R room LAMP Heater Relay Heater Measuring part IC7 No 10 No ll No 12 No 14 No 16 ON Within 1 V Sta...

Page 20: ...112 D12 RYIO ALDll2 RYII ALDI12 _ O7 _41 8 IC7 9 _D65003AP I 8 15 2 9 13 4 11 12 00 IC1 NICDN 02 03 05 1 Check load driving status Type of Load GEARED MOTOR SOLENOID CUBE WATER VALVE ICE WATER IC6 No ll IC6 No 10 SOLENOID DISPENSER HOMEBAR HEATER SOLENOID PILOT Measuring part IC6 No 13 IC6 No 12 No 12 No 10 No 16 ON Within 1 V Status OFF 12 V 2 Lever S W sensing circuit _ing ICl Micom No 16 part L...

Page 21: ...RA GR B247ERA 104_ _C21_ _ _ CON7 F 0OOR S W CON5 F OOOR S W H _AR DOOR S W R OOOR S W Measuring part Door of Freezing ColdStorage Room Closing Opening IC1 MICOM No 47 46 Pin 5 V _ _3 _ _ S W at both ends are at Off status 5 V _ _ _ _ _ S W at both ends are at On status Since door switch sensing switch A B are a separate switch even if the door switch of the freezing room normally operates they ma...

Page 22: ...om sensor for adjusting setting temperature at the freezing room and cold storage room ice making sensor for sensing water temperature in ice making or an evaporator for sensing temperature of a frost removal sensor necessary for frost removal Short or open status of every temperature sensor is as follows SENSOR Freezing sensor Frost removal sensor Cold storage sensor 1 Cold storage sensor 2 Ice m...

Page 23: ...m sensor for adjusting setting temperature at the freezing room and cold storage room ice making sensor for sensing water temperature in ice making or an evaporator for sensing temperature of a frost removal sensor necessary for frost removal Short or open status of every temperature sensor is as follows SENSOR Freezing sensor Frost removal sensor Cold storage sensor 1 Cold storage sensor 2 Room t...

Page 24: ...rcuit model separation function 1 GR L207ERA GR L247ERA 2 GR B207ERA GR B247ERA R2S _ Pll 161 47K 1 18 hi7 MIOOM 112 R4 18 11 IC1 L MIcoM The above circuits are used for designating separation by model as option and notifying it to MICOM Designation of option by model and the application standards are as follows These circuits are accurately pre adjusted in shipment from factory and so you must no...

Page 25: ... in wave form of the following part These signals are output to the output terminal No 10 11 14 15 via the input terminal No 3 6 8 of the IC10 TA7774F as IC for motor driving Output signals allow motor coils wound on each phase of stator to form rotation magnetic field and the motor to rotate Inputting as below figure to the input terminal INA INB as IC TA7774AF for motor driving allows motor coil...

Page 26: ...up to 7 5V 16V to motor 3 This circuit performs function not to drive the fan motor further by cutting off power applied to the fan motor in the lock of fan motor by sensing the operation RPM of the fan motor 1 GR L207ERA GR L247ERA Motor OFF 5V Motor ON 2 3V _ part _ part _ c_ part 2V or less 2V or less 0 V 12 14V 8 16V OV P54 C FAN PWM P51 C FAN LOCK P53 F FAN P_ M PSO F FAN LOCK 53 5O 52 49 4 7...

Page 27: ...FAN PV M P51 C FAN LOCK P53 F FAN PWM PSO F FAN LOCK 4 7K 53 5O 52 49 R55 1OK zD2 1N 735A 6 2V _r77 R31 330 R24 330 R29 2JK R 2B 62O 1 2w 85 Dll FRI02 K7C31 g8 R22 2K CON5 L4 150uH 7 I 2_E7F _CC16 25v T 225 8 4 7K 9 CC15 77 02 22CDEuSF L2C2C14 2sv T 11 cc_3 10 _7 102 42 ...

Page 28: ... value Temperature Resistance value Temperature Remarks RCF1 compensation RCR1 compensation 180 k_ 5 C 180 k_ 2 5 C Warmly 56 k_ 4 C 56 k_ 2 0 C compensate 33 k_ 3 C 33 k_ 1 5 C 18 k _ 2 C 18 k _ 1 0 C 12 k _ 1 C 12 k _ 0 5 C 10 k_ 0 C 10 k_ 0 C Referencetemperature 8 2 k_ 1 C 8 2 k_ 0 5 C 5 6 kD 2 C 5 6 k_ 1 0 C 3 3 k _ 3 C 3 3 k_ 1 5 C 2 k_ 4 C 2 k_ 2 0 C Coolly 470 _ 5 C 470 _ 2 5 C compensate ...

Page 29: ...kD Down Down Down Down Down change Up Up Up Up Up 3 C 2 5 C 2 C 1 5 C 1 C 0 5 C No 0 5 C 1 C 1 5 C 2 C 12 kD Down Down Down Down Down Down change Up Up Up Up 3 5 C 3 C 2 5 C 2 C 1 5 C 1 C 0 5 C No 0 5 C 1 C 1 5 C 18 kD Down Down Down Down Down Down Down change Up Up Up 4 C 3 5 C 3 C 2 5 C 2 C 1 5 C 1 C 0 5 C No 0 5 C 1 C 33 kD Down Down Down Down Down Down Down Down change Up Up 4 5 C 4 C 3 5 C 3 ...

Page 30: ...ule It is driven by SCAN method MICOM IC1 r_s7 P36 P35 Pao P31 ea_ P33 ca4 F_ o_ i _ i A228M L A226M CON6 RL1 IB0 RL2 IB0 R IBO 28 RZ7 _ICD 11 _zIOK CON101 F2 F3 F4 F5 R3 R2 RI R5 R4 PWB ASS Y DISPLAY F5 _ Max _ R5 F4 _ _ R4 F3 _ _ R3 F2 _ _ R2 F1 _ Min _ R1 R S T 2 GR C247 GR C207 GR B247 GR B207 IC1 MICOM P37 P36 P35 P30 Pal P32 P33 P22 2a CClO _1o2 RLI 18O eL2 180 180 CONe CON101 FI F2 F3 F4 F5...

Page 31: ...mpensation for weak cold JCR3 CUT CUT CUT CUT CUT CUT JCR4 CUT CUT CUT CUT CUT CUT CUT Compensation for over cold JCR1 JCR2 CUT CUT CUT CUT CUT CUT CUT _ _ CUT CUT _ CUT CUT CUT CUT Temperature compensation value at cold storage room 0 C In shipment from factory 1 C 1 C 1 C 1 C 2 C 2 C 0 C 0 C 0 C 0 C 1 C 1 C 0 C Remarks The above option circuit is a circuit to compensate for temperature at the co...

Page 32: ...EXPLATION FOR MICOM CIRCUIT 3 PWB parts diagram and list 3 1 PWB Ass y main part diagram 1 GR L207ERA GR L247ERA f il r_ J 47 ...

Page 33: ...ORT DD41480gB SIdfCHING glOg IN4148 22_2 0v 40 DD40040gA REC_R5_ DI 1N4004 1 DELTA _ p UNC DD40040gA REC_R5_ DI IN4004 CHANC 41 D0400409A REC_R5_DI IN4004 _67 _ 42 ODB_60_OOA_ BRIDC_DIOO D3SBA60 HINDEN_IBD1 1 ROHM 4_ DD414_09B SId CHINGDIOD 1N4140 _ m uN_ CHANt H BAR HTR 4 30ZWROOO1gl ZENERDIOD 1N4735 6 2V DELTA ZD1 2 CE2271FB31 _EIO71H _ 3CE1061K63_ _E687AH69 CE22B7H69 CE107AH61 _E227AHB3f Q_E476...

Page 34: ...CR3 JCR4 OP1 4360701_ JUMP WIRE 06XlOmm OP1 EXPORT 4360701_ JUMP WIRE 06XlOmm JHI H B HTR i200JBSOB1E luF 120 350VA PILKC 06 RC FILTER CR1 07 _g20JB3007J HEAT SINK STR TAESUN_ 08 _200JB3004E Vg70020 TNC Og 2mH 7A L1 110 CGMMDN COIL _200JBBOOSJ DV910320 TNC I 11 32mH 1 A L2 112 113 3LRISOQK4JCCHOKE COIL I 50u H TNC L314 I 14 3J02447C F U S E 15A 250V 115 ig01JBSO011 FUSEHOLDER_C61 F SAM JL FUSE1 I ...

Page 35: ...EXPLATION FOR MICOM CIRCUIT 4 PWB circuit diagram PWB circuit diagram may vary a little bit depending on actual condition 1 GR L207ERA GR L247ERA cIN1E PWB ASS Y MAIN o i P_ 53 ...

Page 36: ...EXPLATION FOR MICOM CIRCUIT 54 ...

Page 37: ...RIP247 GR P207 and GR_L247 GR L207 where water and ice are available without opening freezer compartment door 2 Crushed Ice is automatically selected when power is initially applied or reapplied after power cut 3 When dispenser selection switch is continuously pressed light is on in the following sequence Water _ Cube Ice Crushed Ice 4 Lamp is on when dispenser rubber button is pressed and vice ve...

Page 38: ... W 3 OFF OFF OFF OFF ON OFF ON OFF OFF ON OFF ON ON ON ON ON WATER SUPPLY TIME 6 5 Sec 5 5 Sec 6 Sec 7 Sec 7 5 Sec 8 Sec 9 Sec 10 Sec REMARKS The quantity of water supplied depends on DIP switch setting conditions and water pressure as it is a direct tap water connection type the water supplied is generally 80 cc to 120 cc DIP switch is on the main PWB 3 If water supply quantity setting is changed...

Page 39: ... ON high after 3 6 seconds when ice ejection motor rotates in normal direction If there is no change in Hall IC signals within 1 minute after ice ejection motor operates ice ejection motor stops as ice ejection motor or hall IC is out of order 5 If ice ejection motor or Hall IC is abnormal ice ejection motor rotates in normal direction to exercise initial operation It resets the ice maker if ice e...

Page 40: ...onditions and water supply can be checked by test switch When test function performs normally buzzer sounds and water supply shall carry out Check it for repair if buzzer does not sound 4 When water supply is completed the cycle operates normally as follows lce making _lceejection _Returningto horizontal conditions Water supply 5 Remove ice from the ice maker cube mould and press test switch when ...

Page 41: ...ensor and board Pin No 60 of IC1 Failed Ice Maker Unit Is the resistance of both ends 9 10 of ice ejection motor of CON9 between 18 and 22 Is ice ejection motor drive circuit 1C11 and peripheral circuits normal Defects between Hall C and Board Pin No 42 of IC1 Confirm ice ejection and level return when pressing test switch Failed ice maker unit test switch Are both ends 5 6 of CON9 test switch ope...

Page 42: ... as in the door switch input detection circuit of the main PWB 1 This function is used in operation test service execution and cleaning etc and performed if pressing the test switch installed at the automatic ice maker itself for more than 0 5 second 2 The test switch operates in the horizontal status and test function is not input in the water supply operation Ice removal control and water supply...

Page 43: ... SB _ GY _ PR CON3 RD YL YL BK K N WH_ CAPACITOR PART PK RUNNING RD WH I_ _ O L P COMP __ COMPRESSOR P T C ASSY EARTH PART RD WHIN DISP HEAIER S W HEATER PLA _ DI_P _ING 172_C1 HEK_R CORD L RD WH N _ N DISP LAMP YL _ o _ N R DOOR S W BO __BO R LAMP _ WAIE GY SB _ _SOLENO O _ _ _ CUBE FUSE PART APPLICATION OPTIONAL FUSE 100 127V 220 240V NO FUSE 2SOVAC 15A HEATER PLATE WfFANIg BK BLa_ClO _I IWARZ B...

Page 44: ...UIT_ PORTE GY 9 PR 8 BL 7 _ 5 BO 4 RD 3 BN 2 FUSIBLE P _nE P _IO N_ 47Q CON7 _ L GN YL O L P CON6 _N4 SB GY _ PR CON3 RD _ BN COMP LAMPEDISTRIBUTEUR YL _ _ RD f_i VANNE PILO _ o o _ _ _R CONTACT PORTE R BO_ _BO LAMPE R PR _ _ SOLENOIDE SB _ _ _ SOLENOIDE OUBE BL YL CONTACT PORTE F PAR11E CONDENSEUR IFONC_NNEMENT PK CONDENSEUR RD WH_ F APPLICA1 ON FUSIBLE PARTIE OPTION I_FUSIBLE 1 PASDE FUSIBLE 250...

Page 45: ...tinsertedcordlength Wornouttoolblade O L P is off Capacityd O LP issmall Characteristics ofO L Pisbad Badconnection Poweris InnerNi Crwireblowsout disconnected Badinternal connect Faultyterminalcaulking Cawireis cut Badsoldering Noelectricpoweron compressor Faultycompressor FaultyPTC Powerdoesnotconduct Damage Badcharacteri_cs _Initial resistanceisbig Badconnection with _TooIcose compressor LAssem...

Page 46: ...psaremissed _Duringtransporta_ Duringwork Air blowing _ Not_fformed Performed Tonshorttime Lowairpressure Lessdryair Moisture penetra_ Leaveitintheair Moisture penetration intotherefrigeration oil Weldjoint dogged Shortpipeinsert Pipegaps FTonlarge LDamagedpipes Tonmuchsolder Drierdoggeing Thecapillarytubeinserteddepth Tonmuch Capillary tubemelts Overheat Clogged withforeignmaterials Desiccant pow...

Page 47: ...put Capdrainis notdisconnected Defrostheaterdoesnot Parts generateheat disconnected Plate heater Wireis cut Heatingwire Contactpoint betweenheating andelectricwire Dentbyfinevaporator Poorterminal contacts Cord Wireis cut heater Leadwire Heatingwire Contactpoint betweenheatingand electric wire Heating wireiscorroded Waterpenetration Badterminal connection HOW TO CHECK Check visually Check terminal...

Page 48: ...Jctural fault Gasketgap Airinflowthroughthefanmotor Badinsulation of casedoor No automaticdefrosting Defrostdoes notretum 3 Cooling air leak Bad gasketadhestion Gap Badattachment Contract Door sag r Badadhesion Weakbinding force_ hinge 4 No cooling air circulation Faultyfan motor Fanmotor Selflocked Wireis cut Badterminalcontact Doorswitch Faults Contactdistance Buttonpressure Meltedcontact Contac...

Page 49: ...eignm_edalsonrotating parts 5 Compressor capacity Ratingmisuse Smallcapacity Lowvaltage 6 Refrigerant toomuch or toolittle Malfunction ofcharging cylinder Wrongsettingd refrigerant Insufficient compressor Faultycempresse_ 7 Continuous operation No contact of temperature controller Foreign materials 8 Damper opens continuously Foreign materials P Uliquiddump jammed EPSwd ersediment Screw Failed sen...

Page 50: ...mparature L Spaceis secluded 5 Refrigerant leak 6 Inadequate of refrigerant 7 Weak compressor discharging power Different rating Smallcapacity 8 Fan does not work 9 Button is positioned at strong 1 Ice in freeezer compartment Extemalairinflow Rubbermotorassemblydirection reverse Door opens Weakdoordosingpowe but notcloses Stoppermalfundion Doorsag Foodhindersdoordosing Gap aroundgasket Contraction...

Page 51: ... overflows Clogged discharging hose Discharging hose Evaporation tray located at wrong place location Tray drip Damaged Breaks holes Small Capacity Position of drain 1 Compressor compartment operating sounds Compressor sound _ Sound from machine itself inserted _ Sound from vibration Restrainer Rubber Too hard seat Distorted Aged Burnt Stopper Bad Stopper Not fit assembly inner diameter of stopper...

Page 52: ...ds from fan Fanguidecontact contact Shroudburrcontact Damping evaporator contact Residual frostcontact _ Poortreatment Cordheater L Narrow evaporator interval Unbalance fan sounds_ Unbalance Surfacemachiningconditions Fandistortion Misshappen Burr Iceonthefan Air intake opposite to motor rubberassembly Motor shaft _ Supporterdiso_ted contact sound_ _ TiIteddaringmotorassembly Resonance Evaporator ...

Page 53: ...vlel distance Bad connection Bad terminal contact P U liquid leak 1 Lead wire is damaged Connect conduction and Wire damage when assembling RT C Cover Outlet burr in the bottom plate Pressed by cord beaten lead wire evaporator pipe 2 Exposed terminal Compressor Compartment terminal Touching other components Freezer compartment terminal Touching evaporator pipe 3 Faulty parts Transformer _ Coil con...

Page 54: ...lted Poor flatness Nowasher Nogreaseandnotenough quantity Malfunction _ Notdosed Interference betweendoorlinerand innerIine_ Refrfgerater Stopper wornout compartment is openedwhenfreezer compartment is closed faulty stopper 2 Odor Temperature of High refrigerator compartment Deodorizer _ Nodeedonzer Poorcapacity Bad_eezercompedment door assembly Nostopper Faulty damper control Button issetat weak ...

Page 55: ...h testerf if it is 0 _ it is shorted Find and remove the cause of problem ex short high voltage low voltage Replace with rated fuse Replace with rated fuse after confirming its specification If fuse blowns out frequently reconfirm the cause and prevent 2 2 Compressor Problems Causes Checks Measures Remarks If resistance is infinite replace it with new one If it is not infinite it is normal Check o...

Page 56: ...eck operation Door cannot press door switch button Check visually Check the clearance between the refrigerator and wall 50 mm in minimum Check dust on the grill in compressor compartment Check dust on the coils condenser Measures Replace fan motor Reconnect and reinsert Maintain clearance and remove ice Repair and or replace shroud if fan is constrained by shroud deformation Confirm icing causes a...

Page 57: ...rea of wire condenser pipe in compressor compartment cracks can happen during bending 5 Check other parts compressor compartment and evaporators in freezer compartment Check frost formation on the surface of evaporator in the freezer compartment If the frost forms evenly on the surface it is OK If it does not it is not good Measures Weld the leaking part recharge the refrigerant Find out the leaki...

Page 58: ...rms partly on the evaporator in the freezer compartment Check sequence 1 Check cooling fan operation 2 Check that cooling fan is disconnected from the motor Heat up compressor discharging weld joints with touch disconnect the pipes and check the clogging Remove the causes of clogging weld evacuate and recharge the refrigerant If it s warm it s OK If it s not condenser discharging line weld joints ...

Page 59: ...ck drains outside 1 Confirm in the Sucking duct 1 Check heater label 2 Confirm the capacity after substituting the resistance value into the formula V2 V Ratedvoltage 0f user country p R R Resistanceof tester D CompareP and lave1capacity Tolerance 7 Heating wire is short and wire is cut Parts replacement Refer to parts explanations 1 Push out impurities by inserting copper wire Turn off more than ...

Page 60: ...ow and discharge and bad defrosting due to faulty contact and insertion bad connector insertion into housing of heater melting fuse and motor fan 2 Check by inserting soft copper wire into the duct soft and thin copper not to impair heating wire 1 Turn on power open or close the door check that motor fan operates If it operates motor fan is OK 2 Disconnect parts in the refrigerator compartment che...

Page 61: ...rigerator compartment Check gasket attached conditions Check door assembly conditions Check refrigerator compartment is overcooled when button pressed on weak Check parts are faulty Check frost on the evaporator after dissembling shroud and fan grille Check ice on intake port of freezer and refrigerator compartment Check food interferes with door closing Check ice on the ceilings Be acquainted wit...

Page 62: ...t familiar with how to use Door opens High moisture food water is stored Check gasket attachment conditions Check door assembly conditions Refrigerator operates pull down Check if it is operated intermittently The Temperature of freezer compartment is satisfactory but over freezing happens in the refrigerator compartment even though the notch is set at weak Check frost on the evaporator after diss...

Page 63: ...ertion depth and blade damage 3 2 Check the interference with structures 3 3 Check fan motor 3 4 Check fan motor rubber insertion and aging conditions 4 1 Same as fan confirmation in the refrigerator 4 2 Check drip tray leg insertion 4 3 Check the screw fastening conditions at condenser and drip tray 1 Maintain horizontal level 2 Replace rubber and seat if they are sagged and aged 3 Insert rubber ...

Page 64: ...ressor stopper vibration 4 Moving wheel vibration 5 Other structure and parts vibration 1 It is caused by heat expansion and contraction of evaporator shelves and pipes in the refrigerator 1 1 Check time and place of sound sources 1 Reassemble the vibrating parts and insert foam or cushion where vibration is severe 2 Leave a clearance where parts interfere with each other 3 Reduce vibration with r...

Page 65: ...ner attachment conditions on the evaporator and capillary tube weld joints Checkthe sound when compressoris turned on Checkthe sound when compressoris turned off Check the sound by opening and closing the refrigerator or freezer doors Check the restrainer attached on the evaporator and capillary tube weld joints and attach another restrainer If it is continuous and servere insert capillary tube ag...

Page 66: ...edk food cleanliness Check wet food is wrapped with plastic bowl and bag It happens in the new refrigerator Check the deodorizer odors Dry deodorizer in the shiny and windy place Store the food in the closed container instead of vinyl wraps Clean the refrigerator and set button at strong Clean the refrigerator Persuade customers not to use plastic bag or wraps with wet food or odorous foods Dry th...

Page 67: ...tric circuit parts 7812 7805 terminals circuit in circuit explanation PCB electric terminal Check fuse in PCB electric Replace PCB fuse fuse is burnt out terminal with a tester STR Parts are Check if STR No 2 and 3 pins Replace parts Applicable to damaged are cut when power is off model with dispenser Lead Wire connecting main PCB and display PCB is cut or connector terminal connection is bad Bad ...

Page 68: ... main PCB sensor sensor housing sensor housing Defective freezer fan motor Check fan motor lead wire with a tester Measure the voltage between PCB power blue line and fan motor after pressing test switch of Main PCB If the voltage is normal it is OK Faulty defrost Fan motor lead wire is cut Defective door switch freezer refrigerator home bar Defective fan motor Defective fan motor driving relay Re...

Page 69: ...circuit explanation Foreign materials in AC Check AC damper baffle damper baffles visually Ice formation on AC Check if AC damper Heater damper baffles wire is cut with a tester Defective refrigerator sensor parts Check the resistance of refrigerator sensor with a tester Check the sensor color in the circuit main PCB sensor housing Check if refrigerator sensor is not fixed at cover sensor but inne...

Page 70: ...ire from Check lead wire related to door Repair lead wire buzzer continuously main PCB to door switch switch with a tester rings or door Defective door switch parts Refer to door switch in parts repair Replace door switch opening alarm guide does not work Check input wire with a tester Key input wire is cut or bad connector terminal contact in main PCB and display PCB connecting lead wire Buzzer d...

Page 71: ...with a tester dispensed Defective lever switch parts Refer to door switch in parts repair guide Replace lever switch Defective photo coupler IC parts Check voltage change at photo coupler Replace photo output terminals with lever switch coupler IC or PCB pressed It is OK if voltage change is between 0V 5V Defective relay associated with ice Check relay RY9 RY11 RY12 Replace defective dispense gear...

Page 72: ... Vacuum EA High and low Vaccum efficiency can be improved by Pressure sides are operating compressor during evacuation evacuated at the same time for models above 200_ Vacuum EA Use R134a To protect The rubber pipes for R12 refrigerant shall piping exclusive mixing of be melted when they are used for R134a manifold mineral and refrigerant causes of leak ester oils Pipe EA Use R134a To protect coup...

Page 73: ...ile refrigerator operates Weld carefully after inlet pinching Check leak at weld joints _ Minute leak Use electronic leak detector Big leak Check visually or fingers Note Do not use soapy water for check Check cooling capacity 0_Check radiator manually to see if warm _ Check hot line pipe manually to see if warm Check frost formation on the whole surface of the evaporator Remove flux from the silv...

Page 74: ...he order is not observed oil leak will happen Evaporator _side 3 Replacement of drier 1 Be sure to replace drier with R134a only when repairing pipes and injecting refrigerant 4 Nitrogen blowing 1 Weld under nitrogen atmosphere in order to prevent oxidation inside a pipe welding Nitrogen pressure 0 1 0 2 kglcm2 5 Others 1 Nitrogen or refrigerant R134a only should be used when cleaning inside of cy...

Page 75: ...de Intake KEYPOINTING Welding without nitrogen blowing produces oxidized scales inside a pipe which affect on performance and reliability of a product When replacing a drier Weld T and _ parts by blowing nitrogen 0 1 0 2kg cm 2 to high pressure side after assembling a drier When replacing a compressor Weld _ and parts by blowing nitrogen to the low pressure side Note For other parts nitrogen blowi...

Page 76: ...quence 1 Check the amount of refrigerant supplied to each model after completing vacuum degassing 2 Evacuate bombe with a vacuum pump 3 Measure the amount of refrigerant charged Measure the weight of an evacuated bombe with an electronic scale Charge refrigerant into a bombe and measure the weight Calculate the weight of refrigerant charged into the bombe by subtracting the weight of an evacuated ...

Page 77: ... 5 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 during welding In order to prevent insulation break and accident 3 The inner case shall be melted and insulation material polyurethane shall be burnt if not cared during welding inner case parts 4 The copper pipe shall be oxidized by over...

Page 78: ...Drawings PIPE ASSY HOT LINE Freezer Copper Brazer Copper CAPI TUBE DRIER ASSY PIPE ASSY SUCTION Copper Brazer PIPE ASSY HOT LINE Refrigerator Copper Brazer Copper Brazer Copper Brazer JOINT CONDENSER ASSY WIRE Silver Brazer Coppper Brazer 98 ...

Page 79: ...s when pipes and internal evaporator in the refrigerator compartment expand and contract as the temperature changes during the refrigerator operation This sound also happens during defrosting twice a day when the ice on the evaporator melts Explain that it comes from the compressor when the refrigerator starts When the refrigerator operates the piston and motor in the compressor rotate at 3600RPM ...

Page 80: ... water supply valve in the machine room makes sounds like Whizz and water flowing also makes sound When water freezes to ice freezing sounds such as click click are heard When ice is being ejected sounds like Whizz produced by a motor to rotate an ice tray and ice dropping and hitting ice bank sounds are also heard Explain the principles of water supplied to dispenser When the water supply button ...

Page 81: ... kept in the door rack please ask to keep it in the refrigerator compartment shelf It will then become cooler Explain the characteristics of ice cream The freezing point of ice cream is below 15 C Therefore ice cream may melt if it is stored in the door rack Store ice cream in a cold place or set the temperature control button of a freezer at strong position Check the position of temperature contr...

Page 82: ...4 hours and then set the temperature control button at strong Explain the basic principles of frost formation The main causes for frosting Door was left open Air penetration through the gasket Too frequent door opening parties etc Hot foods are stored before they are cooled down The temperature of freezer is 19 C if temperature is set at MID If hot air comes into the refrigerator fine frost forms ...

Page 83: ... in the air tight container or wrapped Be sure to store wet foods in the air tight container or in the wrap When should the power be connected You can connect the power right after the installation But if the refrigerator was laid flat during transportation for a long period of time and the refrigerant and compressor oils are mixed up then this will affect badly the performance of a refrigerator B...

Page 84: ...and remove cover Disconnect all connecting lines except earthing cord 4 Lift up the freezer door _ in arrow direction and disconnect the door from the lower hinge Q Don t pull a door forward _Cover Hinge Earthing Cord 2 Turn hinge lever in arrow _ direction until it is loosened and take it out in arrow _ direction Lever Hinge Connecting _ Line Note Lift up a freezer door until a water supply tube ...

Page 85: ...ow direction with hand and disconnect 4 Turn screw in arrow direction with a cross driver and disconnect Screw Handle Piece 3 SHROUD GRILLE FAN 1 Loosen two screws after disconnecting a cap screw of a grille fan U with a balde screwdriver 2 Disassembly of a grille fan U Pull forward after opening hook at _ part with a blade screwdriver 3 Disconnect housing _ of a grille fan L from the main body 4 ...

Page 86: ...d with a hook 5 Duct cap Assy is disconnected if hold lever connecting screw is loosened with a phillips screwdriver Solenoid Assy II Cap Assy Duct 3 Display Assy can be disconnected by pressing the upper part of a cover dispenser and pushing a display Assy after disconnecting display frame Assy housing 6 For assembling a duct cap Assy insert one end of a spring into the right hole of dispenser le...

Page 87: ...PWB PCB ASSY DISPLAY 7 FUNNELASSY 8 SWITCH MICRO 9 FRAME FUNNEL 10 LEVER SWITCH 11 FUNNEL 12 RUBBER FUNNEL 13 SWITCH ROCKER 14 SOLENOID ASSY 15 SPRING 16 HOLDER LEVER 17 CAP DUCT 19 LEVER DISPENSER 20 RUBBER CAP 21 BUTTON ASSY 22 BUTTON 23 HOLDER BUTTON 24 DECO DRAIN Cap Assy Duct Detailed Drawings 107 ...

Page 88: ...or Assy D 2 Loosen two screws _ attached on the refrigerator compartment door with a phillips screwdriver And loosen 4 screws and two screws _ Pull HIBar door Assy _ forward to disassemble 3 Loosen two screws _ _ fixed on HIBar door Assy and two screws _ with a cross driver to disassemble arm Assy 4 Assemble parts by performing the disassembly in reverse order Note Assemble carefully parts Z _ unt...

Page 89: ...EXPLODED VIEW FREEZER DOOR PART GR P247 GR P207 GR L247 GR L207 I 109 ...

Page 90: ...EXPLODED VIEW Ref No GR L247 GR L207 GR B247 GR B207 REFRIGERATOR DOOR PART Optional part 112 ...

Page 91: ...EXPLODED VIEW FREEZER COMPARTMENT Optional part 113 ...

Page 92: ...EXPLODED VIEW REFRIGERATOR COMPARTMENT Optional part I I 114 ...

Page 93: ...EXPLODED VIEW ICE WATER PART Optional part 115 ...

Page 94: ...EXPLODED VIEW MACHINE COMPARTMENT Optional part I I 116 ...

Page 95: ...EXPLODED VIEW DISPENSER PART I I L _ 117 ...

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LG LRSP2031BS, User Manual

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