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LG LRSPC2331NI User Manual
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LG LRSPC2331NI User Manual

LG LRSPC2331NI User Manual

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PARTS IDENTIFICATION
3. Ref No. : GR-L247ER,
GR-L207ER
Frame Displa
I¢
Dispenser
Button
Cover Hinge
Cover PWB
"\
I'-'=
Water Tube
Freezer
Refrigerator
Compartment
Compartment
Shelf
ice maker
Lam
(optional)
I Box
Shelf.
(Steel,
T/Glass)
Drawer -
or Shelf
(optional)
Guide bottle
Shelf
Door rack
LowerCover
Conversion
Switch
(MeatsNegetables)
Humidity Switch
drawer/Meat
drawer
-14-

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Summary of Contents for LG LRSPC2331NI

  • Page 1 PARTS IDENTIFICATION 3. Ref No. : GR-L247ER, GR-L207ER Cover Hinge Cover PWB "\ Frame Displa Water Tube I¢ Dispenser Button I'-'= Freezer Refrigerator Compartment Compartment Shelf ice maker (optional) I Box Shelf. (Steel, Guide bottle T/Glass) Shelf Drawer - or Shelf (optional) Door rack drawer/Meat...
  • Page 2 HOW TO INSTALL REFRIGERATOR !. How to Adjust Door Height of Refrigerator • Make the refrigerator level first. (If the refrigerator is not installed on the flat floor, the height of freezer and refrigerator door may not be the same.) 1.
  • Page 3 HOW TO INSTALL REFRIGERATOR Pipe 2-1. When connecting directly to the water tap. 2. How to Install Water • Before Installation • Please confirm the following installation parts. 1. The icemaker requires the water pressure of 1.5 - 8.5kgf/cm 2. (It is acceptable if city water fills a cup of 180cc with water for 3 seconds) 2.
  • Page 4 HOW TO INSTALL REFRIGERATOR 1. Connection of Pipe Connector A and B. Caution : • Feed pipe should be connected to cold water line. If it is connected to hot water line, trouble 1) Turn off main valve of water pipe. may occur.
  • Page 5 HOW TO INSTALL REFRIGERATOR 3, When customer uses bottled water, *If customer wants to use bottled water, extra pump should be installed as shown below. 1. The pump system should not be on the floor (it may cause noise and vibration). Securety fasten the inlet and outlet nuts of pump.
  • Page 6 HOW TO INSTALL REFRIGERATOR • Install Water Filter (Applicable to some models only) • Before Installing water filter Control box 1. Before installing the filter, take out the top shelf of the refrigerator after tilting it to the direction (O) and liRing it to the direction ((_)) and move it to the lower part.
  • Page 7 HOW TO INSTALL REFRIGERATOR 3. How to Control the Amount of Water Supplied to Icemaker. 3-1. Confirm the amount of water supplied to the icemaker. 1, Pull out the ice bank in the upper part of the freezer compartment, Caution : * Do not put hands or tools into the chute to confirm the operation of geared motor.
  • Page 8 HOW TO INSTALL REFRIGERATOR 3-2o Control the amount of water supplied to the Caution : When adjusting the amount of water supplied, icemaker. adjust step by step. Otherwise the water may spill over. Caution : • Please unplug the power cord from the wall outlet and wait for more than three minutes before disconnecting PWB cover as 310V is applied in the control panel...
  • Page 9 MICOM FUNCTION l. Monitor Panel 1-1. GR-P247, GR-P207, GR-L247, GR-L207 1-2. GR-C247, GR-C207, GR-B247, GR-B207 Function Monitor tt'l ==== == Freezer compartment Refngerator compartment Dispenser se_ec_ca buttO:l temperature control Button temperatsre control Button 2. Description of Function 2-1. Funnction of Temperature Selection Division Power Initially On...
  • Page 10 MICOM FUNCTION 2-2. Automatic ice maker - The automatic ice maker can automatically make 8 pieces of ice cube at a time, 80 pieces a day. But these quantities may be varied according to various conditions including how many times the refdgerator door opens and closes.
  • Page 11 MICOM FUNCTION 2-4. Control of variable type of freezing room fan 1. To increase cooling speed and load response speed, MICOM vanably controls freezing room fan motor at the high speed of RPM and standard RPM. 2. MICOM only operates in the input of initial power or special freezing operation or load response operation for the high speed of RPM and operates in the standard RPM in other general operation.
  • Page 12 MICOM FUNCTION 2-9. Frost removal function 1. Frost removal is performed whenever total operation time of compressor becomes 7 ~ 7.5 hour. 2. In providing initial power (or returning power failure), frost removal starts whenever total operation time of compressor becomes 4 - 4,5 hour.
  • Page 13 MICOM FUNCTION 2-1 5, Failure Diagnosis Function 1. Failure diagnosis function is function to facilitate service when nonconforming matters affectlng performance of product dudng use of product, 2. In occurrence of failure, pressing the function adjustment button does not perfon-n function and only alarm sound (=Ding-") dngs. 3.
  • Page 14 MICOM FUNCTION Note1) The abnormality of RT-Sensor, R2*Sensor Icemaker Unit, and Icemaker-Sensor is not indicated in trouble code but it is indicated when checking LED (when pressing both freezer temperature control button and refrigerator temperature control button for more than 1 second at the same Ume)+ Normal : (_ LED on, RT-Sensor...
  • Page 15 EXPLATION FOR MICOM CIRCUIT I. Explanation for PWB circuit 1-1. Power circuit 1. GR-L207ERA, GR-L247ERA, GR-B207ERA, GR-B247ERA Power circuit consists of SMPS (SWITCHING MODE POWER SUPPLY) power. The SMPS consist of the rectifying part (BD1, CE1) converting AC voltage to DC voltage, the switching part (IC2) switching the converted DC voltage, transformer transferring energy of the primary side of the switching terminal to the secondary side end the feedback pert (IC3, IC4) transferring it to the primary side.
  • Page 16 EXPLATION FOR MICOM CIRCUIT 1-2. Oscillation circuit Oscillation circuit is a circuit with the purpose of generating basic time for clock occurrence for synchronization and time calculation in relation with information transmission/reception of inside elements of ICl (MICOM). The OSCt must always use rated parts since if SPEC is changed, time calculated at the ICl may be changed or no operation is done.
  • Page 17 EXPLATION FOR MICOM CIRCUIT 1-4. Loadldispenser operation, buzzer driving, door opening circuit 1. LOAD DRIVING CIRCUIT * InEven if opening the door of freezing room or cold storage room during operation of fan motor at the freezing room, this circuit does net stop and operates at the standard RPM. In addition, if doors of freezing room or cold storage room, the fan motor normally operates at the RPM previously operated.
  • Page 18 EXPLATION FOR MICOM CIRCUIT 2) GR-B207ERA, GR-B247ERA # The fan motor at the freezing room does not stop but operates if opening doors of the freezing room or cold storage room or the home bar during operation of the fan motor at the freezing room. _=(A), (B), (C) end (D) of door switch for the freezing room or cold storage room are connected to the door open sensing circuit toward both ends of switch to determine door open at M[COM.
  • Page 19 EXPLATION FOR MICOM CIRCUIT 2, Dispenser operation circuit POWER JWlOR_N :AINI4) AUGER MOTOR ALDl12 SOLENCtD :AINlS) DISPENSE LEVERS_W CUBE CON4 ALDtl2 :Al.l_) 111 @ WA_R JN.Dll2 CONE R'¢10 (MICOM) SOLENOtD DISPENSER R'¢11 A1_112 PILOT VAL_ 11_721 _/2w ";'_ cc_1 DESP-LAMP 1) Check load driving status WATER VALVE GEARED...
  • Page 20 EXPLATION FOR MICOM CIRCUIT 3. Door opening sensing circuit <GR-L207ERA, GR-L247ERA> <GR-B207ERA, GR-B247ERA> L -- - "1.; Ih ..,"._r .._CONDtTIONS Bell sounds when button on Beep sounds when warning M_qURING_-.._ dosplay is pressed, door opening. POINTS ,0053, 0.2s >,0.1s,. 04 s 0.5s O,5s IC1 (No.
  • Page 21 EXPLATION FOR MICOM CIRCUIT 1-5. Temperature sensing circuit I) GR-L207ERA, GR-L247ERA CON7 16.2KF (AINS: = _2 104 _ D-SENSOR F-SENSOR CCI5_- (AIRS; 1OCt/_ (MICE]M) CON8 2&IKF CAIN2: oc22T P63 i CAIN3) R2-SENSOR R1-SENSOR 104 -- CON9 RIM1 lS.2KF =2J- (AtN¢: MAKER SENSOR ,o4 _...
  • Page 22 EXPLATION FOR MICOM CIRCUIT 2) GR-B207ERA, GR-B247ERA (MICOM) CON5 16,2KF (AJN_ CCt71 ,°, 26.1KF (NN5 D-SENSOR cclsl _" F-SENSOR 10# f_ CON6 (A=N21 cc2oi RI-SENSOR P61 59 (_N_ cC21.L R2 - SENson 26.1KF 104 nT 7 10KF P6" (AIN7) cc1__1o4 RT-SENSOR The above circuits are circuits attached to freezing room sensor or cold storage room sensor for adjustJng setting temperature at the freezing room and cold storage room, ice-making sensor for sensing water temperature in ice-making, or...
  • Page 23 EXPLATION FOR MICOM CIRCUIT 1-6. Switch entry circuit The following circuits are entry circuits for sensing signal form test S/W, electronic single motor damper reed S/W for examining refrigerator, 1) GR*L207ERA, GR-L247ERA 2) GR-B207ERA, GR-B247ERA MICOM) _.$__ 1-7. Option designation circuit (model separation function) 1) GR-L207ERA, GR-L247ERA 2) GR-B2O7ERA, GR-B247ERA...
  • Page 24 EXPLATION FOR MICOM CIRCUIT 1-8. Stepping motor operation circuit I IC10 TA7774P CON9 9,15 MICO luf- (ICI) STEPPING For motor driving method, rotation magnetism is formed at coils wound on each phase of motor and stator and so motor becomes to rotate if applying "High" signal to the IC8 (TA777AF) at the MICOM PIN 33 and outputting =High", "Low"...
  • Page 25 EXPLATION FOR MICOM CIRCUIT 1-9. Fan motor driving circuit (freezing room, M/C room) 1. This circuit performs function to make standby power'O' by cutting off power supplied to ICs inside of the fan motor in the fan motor OFF. 2. This is a circuit to perform a temporarychange of speed for the fan motor and applies DC voltage up to 7.5V ~ 16Vto motor.
  • Page 26 EXPLATION FOR MICOM CIRCUIT 2) GR-B207ERA, GRoB247ERA CON5 (MICOM) KTA17C,5 __¢_lrt 4.7K 3.9K C-FAN - D13 /25v :_F+ T223 iCC16 O-[ Q K_C319 B _'FR102 C-FAN LOCK 1N4735A 6.2V m_02 KTA1705 _L___oH@"-_ 4.7K 3.9K F-FAN P_/H R25_ F-FAN LOCK CC13 1N4755A 6.2V - 42 -...
  • Page 27 EXPLATION FOR MICOM CIRCUIT 1-10. Temperature compensation and over-cool/weak-cool compensation circuit 1, Temperature compensation at freezing room, cold storage room 1) GR-L207ERA, GR-L247ERA (MICOM' 16t< I(7< T_mpeP_t_r'e Compems0.llom R-Poor_ {_INO] IR15 C-RT] T_'mper_±tJre compensation _t R_room 5? (AINI) L 10--K_ J f__FT 7 (MICOM 2) GR-B207ERA, GR-B247ERA...
  • Page 28 EXPLATION FOR MICOM CIRCUIT I_ Temperature compensation table at the cold storage room is as follows: 470_ 3.3kD 5,6kQ 8.2k_ 10k.Q 12kD 18k_ 33k_ 56kD 180k_._ resis_m_ 0.5°C 1°C 1.5°C 2°C 2.5°C 3.5oc 4.5oc 470_ change 0.5 "C 0.5 °C 1 °C 1.5 °C 2 °C...
  • Page 29 EXPLATION FOR MICOM CIRCUIT 1-11. Key Button Input and Display Lighting Circuit 1. GR-P247, GR-P207, GR-L247, GR-L207 This circuit is to judge the work of function control button on the operation panel and to light each function indication led (LED module). It is driven by SCAN method. MICOM _----:I.
  • Page 30 EXPLATION FOR MICOM CIRCUIT 2, Compensation circuit for weak-cold, over*cold at freezing room 1) GR-L20TERA, GR-L247ERA 2) GR-B207ERA, GR-B247ERA iRIl_4 : I (MICOM: ,.&, Temperature compensationin CUT +1 °C JCR1 +2 °C +1 °C JCR2 -1 °C i JCR3 .2°C -1 °C JCR4 Compensation...
  • Page 31 EXPLATION FOR MICOM CIRCUIT 3. PWB parts diagram and list 3-1. PWB Ass'y, main part diagram 1, GR-L207ERA, GR-L247ERA ITim ..1_j ; .4:-:;2-_ _ _.I I , ....... iJ,il..d: "_ _,, _.,_'_._ _ ..% / i - 47 -...
  • Page 32 EXPLATION FOR MICOM CIRCUIT 3-2. Parts list 1. GR-L207ERA, GR-L247ERA No= =C:SaU_I_N IdAKEF MAKEF _70JB801' _AIN R*1_11_A _70JB2Ot_ 2:1.74_1_ SAM H_J Sk_ H_ _20_"16"21-3 _(01 _2ZJB2D01_I_COM _ _iP87C841p T0._I_ --31("g_'ll_e_i <IATBOOSAI K ,_.C 16 _ RE_X_r0R RESET IC C]A7042AF K.E.C (ID65003AF K.E.C DI_E...
  • Page 33 EXPLATION FOR MICOM CIRCUIT O_KO+ LSOUPa_ ¢_KER KTA1705 02,4 _'_I_ _*wssmq_ <.E.C _--.'.'.'.'.'.'.'._- (RC106_ iO_UI_ j_GIIm3FS3510AI _KHV10gtl 103 -- £S[" S,/_v 3P,DIF )ip s/_ 0.6x?.5,'_n J29_J34 4360701J J_O Y4RE 0*6XlOmm J01_11_12_28 (_sx12_Smr FI.Jr2(RJS_) 4360701_ J_m _RE O.6X1Omm JCR2 4360701_ JMP NRE _Sx10mm JCR3 JCR4...
  • Page 34 EXPLATION FOR MICOM CIRCUIT 4. PWB circuit diagram - PWB circuit diagram may vaD' a little bit depending on actual condition. 1. GR-L207ERA, GR-L247ERA , /--- PWB ASSW.SUdN -$3-...
  • Page 35 EXPLATION FOR MICOM CIRCUIT -54-...
  • Page 36 ICE MAKER AND DISPENSER OPERATION PRINCIPLE AND REPAIR METHOD 1. Working Principles 1-1. Ice Maker Working Principles • Leve_ Ice Maker Cube Mould for "Initial Control" after power is input. • Wait until the water in the cube mould is frozen after ice maker starts operation.
  • Page 37 ICE MAKER AND DISPENSER OPERATION PRINCIPLE AND REPAIR METHOD 2, Function of Ice Maker 2-1. Initial Control Function 1. When power is initially applied or reapplied after power cut, it detects level of ice maker cube mould after completion of MICOM initialization.
  • Page 38 ICE MAKER AND DISPENSER OPERATION PRINCIPLE AND REPAIR METHOD 2-4. Ice Ejection Control Function 1. This is to eject ice from ice maker cube mould after ice making is completed. 2. If Hall IC signal is on within 3.6 seconds after ice ejection motor rotates in normal direction, it does not proceed ice ejection but waits.
  • Page 39 ICE MAKER AND DISPENSER OPERATION PRINCIPLE AND REPAIR METHOD 2-5 Test Function 1. It is to force the operation during operation test, service, and c]eaeing. The test switch is mounted under the automatic ice maker. The test function starts when the test switch is pressed for more than 0.5 second. 2.
  • Page 40 ICE MAKER AND DISPENSER OPERATION PRINCIPLE AND REPAIR METHOD 3. Ice Maker 1¥oubleshooting * Troubleshooting: ff is possibleto confirm by pressingfreezer and refrigeratortemperature controlbuttons for more than 1 second,(ice maker is normalif all leds are on): referto trouble diagnposis funcUon in MICOM function 2-8 (page 18) Change main PWB I Failed DC Power...
  • Page 41 ICE MAKER AND DISPENSER OPERATION PRINCIPLE AND REPAIR METHOD 4. Ice maker circuit part _mM1 CON9 r--q 1B.2Kg ICE MAKER SENSOR (A_N4) T,o.! 104_ CCZS_ _" STOP S/_/ 104/T cc2_ iCE MAKER TEST SIW 104._ CC27_ ___1 CE HAKER 104 _ (MICOM) 4.7)<...
  • Page 42 CIRCUIT CIRCUIT DIAGRAM G R-P (L)207,247* RA(QA) CN=o_ • HCMEBARPART(H/tL'_ HEATER, DOORS4W) CAPACITOR PART, T HE PLUG 1YPE, comeEsso. F AFrrH eA.X PWBASSEMBLY, M AIN PILOT VALVEONCIRCUIT DIAGRAM ARE FUSEPkR'r SUBJECT TO CHANGE IN DIFFERENT LOCAUTES AND co_ _o_ _gGNHL(GN) F-DOOR S/W F_F_ BU, N)
  • Page 43 CIRCUIT DIAGRAMME DE CIRCUIT G R-P(L)207,247*RA(QA)<No, e_ • PARllE BARD'APP/_ _R lY/_,MtTBCENT_ FORIE SM), Pi_T1E co_.,_nc_w_Au_ GROUPE PWBPRINCIPAL TERREDUCOMPRESSEUR, VN4NE8PILOTES FU,SB_ PkR1]E SURLESCHEMA ELr=c'rR_QUE SOre SUSCEPTBLES DE MODIRCATION$ D ANS CONTACT PORTE-F LAMPE-F S,WNIVEAU DISTRIBUTEUR -64 -...
  • Page 44 TROUBLE DIAGNOSIS 1. TROUBLE SHOOTING CLAIMS. CAUSES AND CHECK POINTS. HOW TO CHECK 1) No power on outlet. * Measuring instrument 1. Faulty start Multi tester 2) NO power on cord. Bad connection between adapter and outlet. (faulty adapter) • Check the voltage. -The Inner diameter of adapter, If the voltageis within ±85%...
  • Page 45 TROUBLE DIAGNOSIS CLAIMS. CAUSES AND CHECK POINTS. HOW TO CHECK 2. NOcooling. 2) Refrigeration system is clogged. • Check the dogged evaporator by heating (as -Moisture Residualrnoisture -AirBk)wfng..Notperformed. soon as the cra_kingsound dogged, inlhe eve.porator. Tcoshort. begins, the evaporator start -Iml:x:4_tile rnds4ue freezing)
  • Page 46 TROUBLE DIAGNOSIS CLAIMS. CAUSES AND CHECK POINTS. HOW TO CHECK 3. Refrigeration 1) Refrigerant Partly leaked. _ weUjointleaK is weak. Partsk_k. 2) Poor defrosting capacity. • Check visually. Drein pa_ (pipe) dogged. - _lect P/U intodrain hose. InjectIhr_ '€_e hole. - Sealwithdrain.
  • Page 47 TROUBLE DIAGNOSIS CLAIMS. CAUSES AND CHECK POINTS. HOW TO CHECK 3. Refrigeration -Residual - We_ he_tfrom heata'. [- SheathHeater- rated. is weak. frost _He_e_m-_te_. • Heaterco_14_ - rated. Bad heater asserrbly. L Heaterplate i Nocontact_ drain. cord. Heatercord4.- oosened_opperLNotcontacttolh evapora_ pipe. Loca_on o f assembly (top and m_e).
  • Page 48 TROUBLE DIAGNOSIS CAUSES AND CHECK POINTS. HOW TO CHECK CLAIMS. 3. Refrigeration 4) No cooling air circulation. is weak. Faultyfan motor. -- Fan is i- FanshroudcontadL - Clearance. turbaned. I- Damp_ evapora_ cor_act '- Accumulated residualfrost. Small cooling air -- I_t Fanoverload,- Fan_.
  • Page 49 TROUBLE DIAGNOSIS CLAIMS. CAUSES AND CHECK POINTS. HOW TO CHECK 4. Warm 1) Colgged cooling path. refrigerator EPJU_ compartment Fofe_nmatedais.-PIUdump 14quid. temperature. 2) Food storate. _ S_ore hotfood. Storeice muchat once. 5_ No automatic 1) Faulty temperature sensor in freezer or refrigerator compartment. •...
  • Page 50 TROUBLE DIAGNOSIS CLAIMS. CAUSES AND CHECK POINTS. HOW TO CHE 6. Dew and 4) Dew on door, ice formation. -- Dew on the duct door. - Duct door heater is cut. -- Dew on the dispense F RecessHeater is cut recess.
  • Page 51 TROUBLE DIAGNOSIS CLAIMS. CAUSES AND CHECK POINTS. HOW TO CHECK 7. Sounds 1) Compressor compartment operating sounds. Transformer sound. _[_ Itsown faulL-- Core gap. Badconnec_n.-- conect s_ew co_ec_x Drip tray vibration sound -Bad asserr_y DistorlJan, Fore_nmaterials i nside. Back cover machine sound. T Bad _n Condenser drain sound.
  • Page 52 TROUBLE DIAGNOSIS CLAIMS. CAUSES AND CHECK POINTS. HOW TO CHECK 8. Faulty lamp 1) Lamp problem. Filament blows out. (freezer and Glass is broken. refrigerator 2) Bad lamp assembly. Not inserted. compartment). Loosened by vibration. 3) Bad lamp socket. --Disconnection._ Bad soldedng, Bad rivet contact.
  • Page 53 TROUBLE DIAGNOSIS CLAIMS. CAUSES AND CHECK POINTS. HOW TO CHECK 10. Structure, 1) Door foam. appearance Weak t o_qea of _ Boris kx)seaed dung and others. hingeceanectiea, transpor_on. f=teead. L-- Screwwom eat, Sag.--i Weakgasket -- A_esion s_ffaea. adhesion. Fb_dtape. Not we_fixed. Noise dudng Hingeinterim.
  • Page 54 2. Faults 2-1. Power Remarks Causes Problems Checks Measures - Power cordcut. No power on - Check the voltage with tester. -Replace the components. outlet, - Faultyconnectorinsertion. - Check visually. -Reconnect the connecting parts. • Faultyconnectionbetween plug Check visually. Reconnect the connecting parts.
  • Page 55 2-3, Temperature Measures Problems Causes Checks Remarks - Lock -- Check resistance with a - Replace fan motor. High Poor cool air circulation due to faulty fan motor. tester. temperature in the freezer 0_: short. _o_: cut, -Reconnect and minsert. compartment.
  • Page 56 2-4. Cooling Problems Checks Causes Measures Remarks Check seauence High Re_gera_leak. Weld the leaking part, recharge Drier must be replaced. temperature 1. Check the welded parts of the refrigerant. in the freezer drier inlet and outlet and drier compartment. auxiliary in the compressor compartme_ (high pressure side).
  • Page 57 Causes Problems Checks Measures Remarks High Cycle pipe is clogged. Check sequence. - Heat up compressor discharging Direr must be replaced. temperaturein 1. Check temperature of condenser weld joints with touch, disconnect the freezer manually. the pipes, and check the clogging. compartment.
  • Page 58 2-5. Defrosting failure Problems Causes Checks Measures Remarks 1. Check the resistance of heater, Seal the lead wire with No defrosting Heater does not generate heat as Heating wire is short and wire is cut, 0_: Short. ,,_2: Cut. the heating wire is cut or the circuit •...
  • Page 59 Problems Causes Checks Measures Remarks No defrosting Melflng fuse blows out. - Check melting fuse with tester. - Faullty parts: parts replacement. 1) Lead wire is cut. If OQ: OK. - Check wire color when maeasuring 2) Bad soldering. If _2: wire is cut. resistance with a tester.
  • Page 60 2-6, Icing Problems Causes Checks Measures Remarks 1) Bad circulation of oool air, - Check the defrost Icing in the - Check the food is stored properly - Be acquainted with how to use. - Clogged intake port in the refrigerator (check discharge and intake port...
  • Page 61 Problems Causes Checks Measures Remarks Jce in the freezer 1) Bad cooling air circulation. - Be acquainted with how to use, - Check the parts related - Check food storage conditions compartment. Intake port is colggedin the freezer visually.(Check clogging at intake - Check defrost (Check ice on the to defrosting if the...
  • Page 62 2-7. Sound Problems Causes Checks Measures Remarks 1.1 Check the level of the "Whizz" sound ;1. Loud sound of compressor 1) Maintain horizontal level. operafion, refrigerator, 2) Replace rubber and seat if they 1.2 Check the rubber seat are sagged and aged. conditions (sagging and aging).
  • Page 63 Causes Checks Measures Remarks Problems Vibration sound. 1, Vibration of shelves and foods in 1-1. Remove and replace the 1) Reassemble the vibrating parts and insert foam or cushion where ("Cluck") the refrigerator. shelves in the refrigerator vibration is severe. 2.
  • Page 64 Problems Chocks Measures Remarks Causes - Check the restrainer attached on the Sound"Burping" - Check the sound of refrigerant at the It happens when refrigerant expands initial installation. (almo_ the same at the end of capillary tube. evaporator and capillary tube weld as animals crying - Check the sound when the refrigerator joints and attach another restrainer.
  • Page 65 2-8. Odor Problems Checks Measures Remarks Causes Food Odor. Food (garlic, kimchi, etc) * Check the food is not wrapped. Dry deodorizer in the shiny and Check the shelves or inner windy place. - Store the food in the closed wall are stained with food juice.
  • Page 66 2-9. Micom Problems Symptom Causes Checks Measures Remarks Bad PCB AU display Bad connection Bad connector Visual check on connector Reconnect electric power. LEDS ere off, between Main PCB connection from main connection, connector. and display circuit. PCB to display PCB. rlrl Defective PCS trans.
  • Page 67 Problems Symptom Causes Checks Measures Remarks Freezer Bad cooling. Compressor does Compressor Lead Wire Reconnect Lead Check compressor Lead Wire not start. is cut. with a tester. Wire. temperature is Refer to load high. Defective compressor Measure voltage at PCB CON5 Replace relay(RY1 driving circuit in driving relay.
  • Page 68 Problems Measures Symptom Causes Checks Remarks Reconnect lead Bad cooling Wrong Defective AC Damper. Check AC damper Check if AC damper motor and motor and reed switch reed switch lead wire are wire. Refdgeretor and lead wire are cut. cut with a tester. temperature, Check AC damper Refer to AC damper in parts...
  • Page 69 Problems Symptom Causes Checks Measures Remarks Bad defrost. Defrost is not Defrost lead wire is cut. Check if defrost lead wire is cut with a Reconnect Lead working, tester. Wire. Defective defrost driving relay. Check the voltage of CON5 (1 and 7) Replace relay (RY 7 Refer to load with a tester after pressing main...
  • Page 70 Problems Symptom Causes Checks Measures Remarks Defective Buzzer rings Trouble mode indication. Check trouble diagnosis function. Repair troubles Refer to mode display button, but key does indication in not sense even function button is explanations. pressed. Check lead wire associated with door I Door Buzzer Defective connecting lead wire from...
  • Page 71 TROUBLE DIAGNOSIS 3. Cooling Cycle Heavy Repair 3-1, The Heavy Repair Standards for Refrigerator with R134a Refrigerant Items Unit Standards Remarks Purposes Min. Pipe and piping Pipe:within 1 houn To protect The opening time should be reduced to a Moisture system opening time.
  • Page 72 TROUBLE DIAGNOSIS 3-2. Summary Of Heavy Repair Process Contents Tools - Cut charging pipe ends and discharge refrigerant from Filter, side cutters drier and compressor. - Use R134a oil and refrigerant for compressor and drier Pipe Cutter. Gas welder, N2 gas - Confirm N2 sealing and packing conditions before use.
  • Page 73 TROUBLE DIAGNOSIS 3-3° Precautions During Heavy Repair Items Precautions 1. Use of tools. 1) Use special parts and tools for R134a. 2. Removal of retained 1) Remove retained refrigerant more than 5 minutes after turning off a refrigerator. refdgerant. (If not, oil will leak inside.) 2) Remove retained refrigerant by cutting first high pressure side (drier part) with a nipper and then cut low pressure side.
  • Page 74 TROUBLE DIAGNOSIS 3-4. Practical Work For Heavy Repair Items Precautions 1. Removal of residual Evaporator Low pressure side refrigerant. KEYPOINTING Compressor _:_/ Observe the sequence removal of refrigerant. Drier (if not, compressor oil may leak.) _ide R_enser H._. r-..Intake 1) Remove residual refrigerant more than 5 minutes later after turning off the refrigerator.
  • Page 75 TROUBLE DIAGNOSIS Items Precautions 4,Vacuum degessing. Evaporator Suctionpipe Compressor Dr_er BLue hut e KEYPOINTING - If power is applied dudng vacuum degassing, vacuum degassing shall be more effective. Pipe Connection - Operate compressor Connect a red hose to the high pressure side and a blue hose to the while charging low pressure side.
  • Page 76 TROUBLE DIAGNOSIS Items Precautions Evaporator Compressor Condenser Bombe 4) Refrigerant Charging Charge refrigerant while operating a compressor as shown above. 5) Pinch a charging pipe with a pinch-oft 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 77 TROUBLE DIAGNOSIS 3-6. Brazing Reference Drawings PIPEASSY,HOTLINE PIPE ASSY, HOT LINE (Freezer) (Refrigerator) Copper Brazer Copper CAPI-TUBE DRIER ASSY Copper Silver Brazer Brazer PIPE ASSY, SUCTION Copper Brazer CONDENSER ASSY,WIRE Copper Brazer Silver Brazer Copper Brazer Coppper Brazer - 98 -...
  • Page 78 TROUBLE DIAGNOSIS 4, HOW DEAL WITH CLAIMS 4-1. Sound Problems Checks and •easurss "Wh LZZ"sounds • Explain general principles of sounds. • All refrigerator when functioning properly have normal operating sound. The compressor and fan produce sounds. There is a fan in the freezer compartment which blows cool air to freezer and refrigerator compartments.
  • Page 79 TROUBLE DIAGNOSIS Problems Checks and Measures Sounds of water flowing • Explain the flow of refrigerant. • When the refrigerator stops, the water flowing sound happens. This sound happens when the liquid or vapor refrigerant flows from the evaporator to compressor. "Click"...
  • Page 80 TROUBLE DIAGNOSIS 4-2. Measures for Symptoms on Temperature Problems Checks and Measures Refrigeration is weak. • Check temperature set in the temperature control knob. - Refrigerator is generally delivered with the button set at "normal use" (MID). But customer can adjust the temperature sot depending on their habit and taste. If you feel the refrigeration is weak, then set the temperature control button at "strong"...
  • Page 81 TROUBLE DIAGNOSIS 4-3° Odor and Frost Problems Checks and Measures Odor in the refrigerator compartment. • Explain the basic principles of food odor. • Each food has its own peculiar odor. Therefore it is impossible to prevent or avoid food odor completely when food is stored in the completely sealed refrigerator compartment.
  • Page 82 TROUBLE DIAGNOSIS 4-5, Others Problems Checks and •easures The refhgerator case is hot. • Explain the principles of radiator. • The radiator pipes are installed in the refrigerator case and partition plate between the refrigerator and the freezer compartment in order to prevent condensation formation.
  • Page 83 HOW TO DISASSEMBLE AND ASSEMBLE 1. DOOR (3) Disconnect upper hinge O from a hinge supporter (_) by grasping the front part of upper hinge and _ifting up (Hinge Assy, U) in arrow direction _) and pull forward 1) Remove lower cover and then disconnect water in arrow _) direction.
  • Page 84 HOW TO DISASSEMBLE AND ASSEMBLE 2. HANDLE 4) Disassembly of a grille fan (L) : Hold upper part of a gdIle fan(L) and pull forward carefully. 1) Put blade screwdriver into a groove on the side of a 5) Loosen two screws. Deco handle and lift up a little bit in arrow O direction and push up with hand in arrow _) direction and 6) Disassembly...
  • Page 85 HOW TO DISASSEMBLE AND ASSEMBLE 5. DISPENSER 4) Loosen four screws with a phillips screwdriver and pull a funnel Assy to disconnect. 1) Disconnect button assembly by pulling down until it stops and then pulling forward. Funnel Assy 5) Duct cap Assy is disconnected if hold lever connecting screw is loosened with a phillips screwdriver, 2) Remove display frame Aesy by making a gap between a...
  • Page 86 HOW TO DISASSEMBLE AND ASSEMBLE 7) Dispenser Related Parts FRAME ASSY, DISPLAY COVER, DISPENSER PWB(PCB) ASSY, DISPLAY FUNNELASSY SWITCH, MICRO FRAME, FUNNEL LEVER(SWITCH) 11 FUNNEL RUBBER, FUNNEL 13 SWITCH, ROCKER 14 SOLENOID ASSY 15 SPRING 16 HOLDER, LEVER 17 CAP, DUCT ! 19 LEVER, DISPENSER 20 RUBBER, 21 BUTTON ASSY...
  • Page 87 HOW TO DISASSEMBLE AND ASSEMBLE 6. WATER TANK AND WATER LINE parts disassembly and assembly' 7-2. Home 1_ The water tank at back and lower part of a refrigerator is 1) Disconnect H/Bar Door Assy O. fixed by one screw and has a capacity containing 2) Loosen two screws (_) attached on the refrigerator glasses (180cc per glass) of cold water.
  • Page 88 EXPLODED VIEW FREEZER DOOR PART: GR-P247, GR-P207, GR-L247, GR-L207 - 109-...
  • Page 89 EXPLODED VIEW FREEZER COMPARTMENT * : Optional part -113-...
  • Page 90 EXPLODED VIEW REFRIGERATOR COMPARTMENT * : Optional part -114-...
  • Page 91 EXPLODED VIEW ICE & WATER PART * : Optional part -115-...
  • Page 92 EXPLODED VIEW MACHINE COMPARTMENT : Optional part -116-...
  • Page 93 EXPLODED VIEW DISPENSER PART - 117-...

This manual is also suitable for:

Gr-l247erGr-l207er