LG GR-L227 Скачать руководство пользователя страница 97 | Manualshive

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Ref No. : GR-L257/P257

REFRIGERATOR COMPARTMENT

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: Optional part

EXPLODED VIEW

- 100 -

409B

120E

16

0A

16

5A

166C

166A

166B

166

G

624A

270B

271B

271C

103A

116A

272B

151A

155A

626B

626A

626C

101A

151C

151B

624C

401A

146A

402A

152A

162A

162B

177A

177B

1

71A

14

1B

16

1E

166

M

140A

150B

115

C

115

B

115A

150A

1

71B

14

0A

140A

170A

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Содержание GR-L227

Страница 1: ...CAUTION PLEASE READ CAREFULLY THE SAFETY PRECAUTIONS OF THIS BOOK BEFORE CHECKING OR OPERATING THE REFRIGERATOR REFRIGERATOR SERVICE MANUAL MODEL GR P227 L227 COLOR TITANIUM http eic lgservice com ...

Страница 2: ...OM CIRCUIT 27 EXPLANATION FOR PWB CIRCUIT 27 ICE MAKER AND DISPENSER WORKING PRINCIPLE AND REPAIR 42 OPERATION PRINCIPLE 42 FUNCTIONS OF ICE MAKER 43 ICE EJECTION CONTROL FUNCTION 44 CIRCUIT 48 TROUBLE DIAGNOSIS 49 TROUBLE SHOOTING 49 FAULTS 59 COOLING CYCLE HEAVY REPAIR 76 HOW TO DEAL WITH CLAIMS 83 HOW TO DISASSEMBLE AND ASSEMBLE 88 DOOR 88 HANDLE 89 SHROUD GRILLE FAN 89 WATER VALVE DISASSEMBLY ...

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

Страница 4: ...e CONDENSER Wire Condenser REFRIGERANT R134a 180g LUBRICATING OIL FREOL 10G 310 cc CAPILLARY TUBE ID 0 83 DRIER MOLECULAR SIEVE XH 7 1753 602 948 894 662 711 790 1135 5 Front View Plane View 1 Ref No GR P227 ITEMS SPECIFICATIONS FIRST DEFROST 4 5 Hours DEFROST CYCLE 13 15 Hours DEFROSTING DEVICE Heater Sheath ANTI SWEAT HEATER Dispenser Duct Door Heater Dispenser Heater Home Bar Heater ANTI FREEZI...

Страница 5: ...Tube Type CONDENSER Wire Condenser REFRIGERANT R134a 180g LUBRICATING OIL FREOL 10G 310 cc CAPILLARY TUBE ID 0 83 602 948 894 662 711 790 1135 5 1753 Front View Plane View 2 Ref No GR L227 ITEMS SPECIFICATIONS DRIER MOLECULAR SIEVE XH 7 FIRST DEFROST 4 5 Hours DEFROST CYCLE 13 15 Hours DEFROSTING DEVICE Heater Sheath ANTI SWEAT HEATER Dispenser Duct Door Heater Dispenser Heater ANTI FREEZING HEATE...

Страница 6: ...lf Refreshment center Optional Can Server Optional Shelf Folding or Normal Wine holder Plastic or wire Egg Box Vegetable Drawer Humidity Switch Door Rack Door Rack Miracle Zone Optional Fresh compartment Optional Conversion switch Meats Vegetables Optional Cover PWB Water Tube Home Bar Frame Display Dispenser Lamp Ice Water Dispenser Button 1 Ref No GR P227 P257 INTERNAL FILTER ...

Страница 7: ...ck Lower cover Milk product corner Lamp Shelf Refreshment center Optional Can Server Optional Shelf Folding or Normal Wine holder Plastic or wire Egg Box Vegetable Drawer Humidity Switch Door Rack Door Rack Miracle Zone Optional Fresh compartment Optional Conversion switch Meats Vegetables Optional Cover PWB Home Bar Frame Display Dispenser Lamp Ice Water Dispenser Button ...

Страница 8: ... Shelf Refreshment center Optional Can Server Optional Shelf Folding or Normal Wine holder Plastic or wire Egg Box Vegetable Drawer Humidity Switch Door Rack Door Rack Miracle Zone Optional Fresh compartment Optional Conversion switch Meats Vegetables Optional Cover PWB Water Tube Frame Display Dispenser Lamp Ice Water Dispenser Button 3 Ref No GR L227 P257 INTERNAL FILTER ...

Страница 9: ...or rack Lower cover Milk product corner Lamp Shelf Refreshment center Optional Can Server Optional Shelf Folding or Normal Wine holder Plastic or wire Egg Box Vegetable Drawer Humidity Switch Door Rack Door Rack Miracle Zone Optional Fresh compartment Optional Conversion switch Meats Vegetables Optional Frame Display Dispenser Lamp Ice Water Dispenser Button Cover PWB ...

Страница 10: ...eight of freezer door is higher than that of refrigerator compartment Insert a driver B into the groove A of adjusting screw and rotate driver in arrow direction clockwise until the refrigerator becomes horizontal Insert a driver B into the groove A of adjusting screw and rotate driver in arrow direction clockwise until the refrigerator becomes horizontal HOW TO INSTALL REFRIGERATOR 10 Adjusting S...

Страница 11: ...firm the following installation parts HOW TO INSTALL REFRIGERATOR 11 Class Shape and Spec Nomenclature P No Remarks Valve Feed 5221JA3001A Common Use Connector MECH Pipe 4932JA3003A Conversion Connector 3 4 6631JA3004A No Holes Balance Conector 3 4 6631JA3004B Packing ø24x3t 3920JA3001B Connector MECH Pipe 4932JA3003B Conversion Connector W25 6631JA3004C No Holes Balance Conectoor W25 6631JA3004D ...

Страница 12: ...nser button for 2 3 minutes and confirm that the water comes out Caution Feed pipe should be connected to cold water line If it is connected to hot water line trouble may occur Please check rubber packing when connecting feed pipe 2 Check leakage at connecting part then arrange water tube and locate the refrigerator at its regular place if there is no leaking HOW TO INSTALL REFRIGERATOR 12 Single ...

Страница 13: ...ure drops Use standard feed tube to prevent leaking Outternal Filter 1 Filter Fixation 1 There are two types of filter One is nut type and the other is connector type 2 Connect feed tube to the filter outlet and water valve connecting tube 3 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 sha...

Страница 14: ...by turning it clockwise by 90 degrees Note Check that the guideline and the fastening indication line are aligned 2 Replacement of water filter While holding the lower part of the filter turn it counterclockwise a by 90 degrees and pull it down Note Check that the guideline and the loosening indication line are aligned After installing water filter Reassemble the lamp cover and the top shelf of th...

Страница 15: ... below 2 The 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 tra...

Страница 16: ...ed into the ice tray 4 If ice cube sticks together decrease the water supplying time This happens when too much water is supplied into the ice tray Caution When adjusting the amount of water supplied adjust step by step Otherwise the water may spill over 3 When adjustment of control switch for the amount of water supplied is complete check the level of water in the ice tray HOW TO INSTALL REFRIGER...

Страница 17: ...ously to turn all LEDs ON and then OFF with the recognition sound of Ding after 5 seconds Be sure not to press only one button to work 17 Dispenser Selection Button Expres Freezer Selection Button Door Alarm Button Lock Button Dispenser Light On Off Button Filter Status Display RESET Button Temperature Adjust Button For Refrigerator Compartment Temperature Adjust Button For Freezer Compartment Dis...

Страница 18: ...escription of Function 2 1 1 Funnction of Temperature Selection Some models only The temperature can vary 3 C depending on the load condition Whenever pressing button setting is repeated in the order of Medium Medium Max Max Min Medium Min The actual inner temperature varies depending on the food status as the indicated setting temperature is a target temperature not actual temperature within refr...

Страница 19: ...sensor fails it is displayed as Er 3 Since display temperature of outside temperature is temperature sensed by the ambient sensor in the hinge U of the freezing room it may differ from the outside temperature display of other household electrical appliances 2 1 4 Lock function display button lock 1 In power application of refrigerator the LOCK text is turned off at the right side of lock graphic o...

Страница 20: ...r 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 be adjusted Contact the service center If ice is not used frequently it may lump...

Страница 21: ... right side of the Miracle Zone Initial notch is in veg status in application of power Whenever pressing buttons notch changes while LED is displayed in the order of veg cheeze meat veg Provided that selected notch LED turns off if opening doors of the R room and it turns off if closing doors of R room 2 Temperature of the miracle zone is controlled with a stemping damper at the left side of the m...

Страница 22: ... 1 If pressing the test button in the main PCB Phi sound rings 2 In selecting compulsory operation alarm sound is repeated and completed in the cycle of On for 0 2 second and Off for 1 8 second three times 3 In selecting compulsory frost removal alarm sound is repeated and completed in the cycle of On for 0 2 second Off for 0 2 second On for 0 2 second and Off for 1 4 second three times 2 14 Frost...

Страница 23: ...tion COMP operates after 7 minutes When temperature of a frost removal sensor becomes less than 45 C In power failure service Test mode 1 Compulsory function Test mode 2 Compulsory frost removal POWER ON COMP ON F FAN C FAN ON R STEP MOTOR DAMPER ON HOME BAR HEATER ON MIRACLE ZONE STEP DAMPER MOTOR ON FROST REMOVAL HEATER OFF HOME BAR HEATER ON HOME BAR HEATER OFF FROST REMOVAL HEATER ON DAMPER DU...

Страница 24: ... MICOM returns to the original state Reset 4 Failure code is displayed on the display part of setting temperature for the freezing room and the display part of setting temperature for the cold storage room of LCD which are placed at the display part of a refrigerator All the LCD graphics other than a failure code are turned off All LCDs turn off other than freezer room notch temperature display an...

Страница 25: ...Normal Status Mode Operation Contents Remarks Press test button once strong cold mode Press test button once at the test mode 1 status forced defrost mode Press test button once at the test mode 2 status 1 Continuous operation of compressor 2 Continuous operation of freezing bldc motor high speed RPM and cooling bldc motor 3 Defrost heater turns off 4 Stepping motor damper is completely opened ope...

Страница 26: ... door is stop 5 seconds after Off to prevent short circuit of a coil due to overheat of solenoid 5 Dispenser Lamp On Off function Lamp on the dispenser part is turned on if pressing the dispenser press switch after selecting ice cube ice crushed ice or water If detaching the hands it is turned off 6 Selection function of water crushed cube ice 1 This is function to allow selection of water crushed...

Страница 27: ...e a transformer and a feedback circuit IC3 and IC4 Caution Since high voltage 310 Vdc is maintained at the power terminal wait at least 3 minutes after unplugging the appliance to check the voltages to allow the current to dissipate Voltage of every part is as follows 1 GR P227 L227 EXPLATION FOR MICOM CIRCUIT 27 Part VA1 CE1 CE2 CE3 CE4 CE5 Voltage 230 Vac inspection Vdc 13 16 Vdc 12 Vdc 15 5 Vdc...

Страница 28: ...ge will affect the time calculations of the MICOM and it might not work at all 1 GR P227 L227 1 3 Reset circuit The RESET circuit allows various parts of the MICOM such as RAM defrosting etc to be restarted from the initial state when power is interrupted or restored A LOW signal applied to the reset terminal for 10 ms causes the MICOM to reset itself During normal operation the voltage at the res...

Страница 29: ... room or cold storage room are 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 1 GR P227 L227 EXPLATION FOR MICOM CIRCUIT 29 Measuring part IC6 No 16 No 12 No 11 No 15 No 13 No 14 Status ON Within 1 V...

Страница 30: ...R MICOM CIRCUIT 30 Measuring part Lever S W IC1 Micom No 15 16 On Press OFF 5V 0 V 60 Hz 5 V Measuring part IC7 No 16 IC7 No 15 IC7 No 14 IC7 No 13 IC7 No 12 IC7 No 11 IC7 No 10 Status ON Within 1 V OFF 12 V Type of Load GEARED MOTOR SOLENOID CUBE WATER VALVE ICE WATER PILOT VALVE SOLENOID DISPENSER HOME BAR HEATER ...

Страница 31: ... opening in the failure of switch at both ends of A and B or in failure of the L wire Lamp does at the cold storage room not turn on if the door switch of the cold storage room fails to sense the door open switch c d or the home bar switch Closing 5 V A B C D E F S W at both ends are at Off status Opening 5 V A B C D E F S W at both ends are at On status Measuring part IC1 MICOM No 47 46 Pin Door ...

Страница 32: ...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 EXPLATION FOR MICOM CIRCUIT 32 SENSOR CHECK POINT NORMAL 30 C 50 C IN SHORT IN OPEN Freezing sensor POINT A Voltage Frost removal sensor POINT B Voltage Cold storage sensor 1 POINT C Voltage 0 5 V 4 5 V 0 V 5 V Cold storage sensor 2 POINT D V...

Страница 33: ...ion designation circuit model separation function 1 GR P227 L227 The circuits shown above vary according to which features are included on your particular model uThese circuits are preset at the factory and cannot be altered EXPLATION FOR MICOM CIRCUIT 33 Separation Connection Status Application Standard Connection Miracle Zone exist OP1 OUT Miracle Zone don t exist ...

Страница 34: ... is driven by sending signals of 3 33 mSEC via MICOM pins 33 34 and 35 as shown in the chart below These signals are output via terminals 10 11 14 and 15 via input terminals 3 6 and 8 of IC10 TA7774F the motor drive chip The output signals allow the coils wound on each phase of the stator to form a magnetic field which causes rotation Input to the terminals INA and INB of IC10 as shown in the char...

Страница 35: ...s circuit changes the speed of the fan motor by varying the DC voltage between 7 5 Vdc and 16 Vdc 3 This circuit stops the fan motor by cutting off power to the fan when it senses a lock up condition 1 GR P227 L227 EXPLATION FOR MICOM CIRCUIT 35 a d part b part e part Motor OFF 5V 2V or less 2V or less Motor ON 2 3V 12 14V 8 16V b d a e ...

Страница 36: ...crease by 1 C Ex Now R J1 R J2 1 2kΩ RCRI 5 6kΩ want to compensate 2 C for Freezing room temperature and 2 C for Cold storage room temperature R J1 12kΩ 1kΩ R J2 12kΩ RCRI 5 6kΩ 18kΩ Freezing room Cold storage room Resistance value Temperature Resistance value Temperature Remarks R J1 R J2 compensation RCR1 compensation 5 C 180 kΩ 2 5 C Warmly 4 C 56 kΩ 2 0 C compensate 3 C 33 kΩ 1 5 C 2 C 18 kΩ 1...

Страница 37: ...wn change Up Up Up Up Up Up Up 2 C 1 5 C 1 C 0 5 No 0 5 C 1 C 1 5 C 2 C 2 5 C 3 C 8 2 kΩ 3 6 F 2 7 F 1 8 F 0 9 F 0 9 F 1 8 F 2 7 F 3 6 F 4 5 F 5 4 F Refrigerator Down Down Down Drop change Up Up Up Up Up Up RCR1 2 5 C 2 C 1 5 C 1 C 0 5 C No 0 5 C 1 C 1 5 C 2 C 2 5 C 10 kΩ 4 5 F 3 6 F 2 7 F 1 8 F 0 9 F 0 9 F 1 8 F 2 7 F 3 6 F 4 5 F Down Down Down Down Down change Up Up Up Up Up 3 C 2 5 C 2 C 1 5 C ...

Страница 38: ...for too cold Temperature compensation value Remarks JCR3 JCR4 JCR1 JCR2 at refrigerator 0 C In shipment from factory CUT 1 C 1 8 F CUT 1 C 1 8 F CUT 1 C 1 8 F CUT 1 C 1 8 F CUT CUT 2 C 3 6 F CUT CUT 2 C 3 6 F CUT CUT 0 C 0 F CUT CUT 0 C 0 F CUT CUT 0 C 0 F CUT CUT 0 C 0 F CUT CUT CUT 1 C 1 8 F CUT CUT CUT 1 C 1 8 F CUT CUT CUT CUT 0 C 0 F Temperature compensation in CUT JCR1 1 C 1 8 F 2 C 3 6 F JC...

Страница 39: ... wire assembly between the two boards is required for the display to function properly Poor communication occurs if a continuous information exchange fail to continue for more than 2 minutes between main MICOM of main PCB and LCD LED dedicated MICOM for LCD LED control of display PCB 1 GR P227 L227 EXPLATION FOR MICOM CIRCUIT 39 Main MICOM LCD LED dedicated MICOM DC 12V GND Transmission error stat...

Страница 40: ...sensor 1 and 2 shall be measured with a digital tester after separating CON8 of the PWB ASSEMBLY and the MAIN part u Resistance of the freezing sensor shall be measured with a digital tester after separating CON7 of the PWB ASSEMBLY and the MAIN part EXPLATION FOR MICOM CIRCUIT 40 Measuring Temperature C Freezing Sensor Refrigerator sensor 1 2 Defrost sensor Ambient sensor 20 C 22 3 kΩ 77 kΩ 15 C ...

Страница 41: ...cle Zone STEPPING MOTOR Display Miracle zone stepping motor damper is same as 1 8 stepping motor operation circuit and the miracle zone display turns on only when the R door opens 41 EXPLATION FOR MICOM CIRCUIT ...

Страница 42: ...ed if there is ice in the ice bank 7 In case of water mode when dispenser button is pressed water valve opens and water is supplied if water valve is normally installed on the right side of the machine room 8 Ice and water are not available when freezer door is open Level Ice Maker Cube Mould for Initial Control after power is input Power Input Initial Control Ice Making Control Ice Ejection Contr...

Страница 43: ...e amended time If DIP switch is changed during water supply water shall be supplied for the previous setting time But it will supply for the amended time from the next supply 4 When water supply signal is applied to water and ice valves at the same time during water supply water shall be supplied to water valve If water supply signal is applied to ice valve during water supply water shall be suppl...

Страница 44: ...en 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 ejection motor or Hall IC is n...

Страница 45: ...ch 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 Ice making Ice ejection Returning to horizontal conditions Water supply 5 Remove ice from the ice maker cube mould and press test switch when ice maker cube mould is full of ice as ice ejection an...

Страница 46: ...troubleshooting check Failed Ice Maker Unit Is the resistance of both ends 9 10 of ice ejection motor of CON8 between 18 and 22Ω Is ice ejection motor drive circuit IC11 and peripheral circuits normal Defects between Hall IC and Board Pin No 42 of IC1 Confirm ice ejection and level return when pressing test switch Replace Ice Maker Unit Replace Main PWB Are ice ejection and level return normal whe...

Страница 47: ... ice ejection motor drive circuit IC11 and peripheral circuits normal Defects between Hall IC and Board Pin No 46 of IC1 Confirm ice ejection and level return when pressing test switch Replace Ice Maker Unit Replace Main PWB Are ice ejection and level return normal when test switch is pressed for more than 0 5 second Does the bell sound once Failed ice maker unit test switch Are both ends 5 6 of C...

Страница 48: ... 1 GR P227 L227 CIRCUIT 48 ...

Страница 49: ...terminal Bad connection between plug and adapter faulty plug The distance between pins Pin outer diameter No power on power cord O L P is off No electric power on compressor Faulty compressor Faulty PTC Disconnectedcopperwire Internalelectricalshort Faultyterminalcontact Disconnected CapacityofO L Pissmall CharacteristicsofO L Pisbad Badconnection Poweris disconnected InnerNi Crwireblowsout Badint...

Страница 50: ...Leaveitintheair Moisturepenetration intotherefrigerationoil Capsaremissed Airblowing Duringtransportation Duringwork Notperformed Performed Tooshorttime Lowairpressure Lessdryair AirBlowing Leaveitintheair Capsaremissed Shortpipeinsert Pipegaps Toomuchsolder Toolarge Damagedpipes Notdriedinthecompressor Elapsedmorethan6monthsafterdrying Capsaremissed Nopressurewhenitisopen Duringresttime Afterwork...

Страница 51: ...se Foreignmaterials penetration Capdrainisnotdisconnected Injectthroughthe hole Sealwithdrain P Ulumpinput Screwinput Otherforeignmaterials input Parts disconnected Wireiscut Leadwire Heatingwire Contactpoint betweenheatingand electricwire Dentbyfinevaporator Heatingwireiscorroded Waterpenetration Badterminalconnection Check visually Check terminal Conduction OK No conduction NG If wire is not cut...

Страница 52: ... location thickness Structuralfault Gasketgap Airinflowthroughthefanmotor Badinsulationofcasedoor SheathHeater rated Heaterplate rated Gap Badattachment Contraction Badadhesion Weakbindingforceathinge Fanmotor Doorswitch Selflocked Wireiscut Badterminalcontact Contactdistance Buttonpressure Meltedcontact Contact Poordoor attachment Doorliner dimension Contractioninner liner Misalignment Badtermina...

Страница 53: ...anis constrained Insufficient motorRPM Faultyfan Shorud Bent Iceandforeignmaterialsonrotatingparts Fanshroudcontact Clearance Dampingevaporatorcontact Accumulatedresidualfrost Fanmisuse Badshape Looseconnection Nottightlyconnected Insertdepth Ratingmisuse Smallcapacity Lowvaltage Malfunctionofchargingcylinder Wrongsettingofrefrigerant Insufficientcompressor Faultycompressor Fanoverload Fanmisuse B...

Страница 54: ...erials P U dump liquid Faulty contact Faulty temperature characteristics External air inflow Rubber motor assembly direction reverse Door opens but not closes Gap around gasket Contraction distortion loose door twisted corner not fully inserted Food vapor Storing hot food Unsealed food Door opens but not closes Gasket gap Cool air leak and transmitted Highambienttemperature Spaceissecluded Differe...

Страница 55: ...ssor 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 Tilted Not Compressor base not connected Bad welding compressor stand fallen Foreign materials in the compressor compartment O L P sound Chattering sound Insulation paper vibrat...

Страница 56: ...ownfault Coregap Badconnection Correctscrewconnection Badassembly Distortion Foreignmaterialsinside Badconnection Partlydamaged Notconnected Badpipecaulking Normaloperatingsound Vibrationsound Agedrubberseat Badtorqueforassemblingmotor bracket Fanguidecontact Shroudburrcontact Dampingevaporatorcontact Residualfrostcontact Unbalance Iceonthefan Airintake oppositetomotor rubberassembly Supporterdiso...

Страница 57: ...Travlel distance Bad connection Bad terminal contact P U liquid leak 1 Lead wire is damaged Wire damage when assembling P T C Cover Outlet burr in the bottom plate Pressed by cord heater lead wire evaporator pipe 2 Exposed terminal Compressor Compartment terminal Touching other components Freezer compartment terminal Touching evaporator pipe 3 Faulty parts Transformer Coil contacts cover Welded te...

Страница 58: ...betweendoorlinerandinnerliner Refrigerator compartmentis openedwhenfreezer compartmentis closed faultystopper High Faultydampercontrol Buttonissetat weak Doorisopen interferenceby food Nodeodorizer Poorcapacity Sealcondition Storespecialodorousfood Longtermstorage Odorsfromchemicalprocucts Biggerdoorfoam Hinge Pintilted Poorflatness Nowasher Nogreaseandnotenough quantity Stopperwornout Badfreezerc...

Страница 59: ... and products Replace with rated fuse Electricity leakage Check the resistance of power cord If fuse blowns out High voltage with testerf if it is 0Ω it is shorted frequently reconfirm Short circuit of components the cause and prevent tracking due to moisture and dust penetration Problems Causes Checks Measures Remarks Compressor Faulty PTC Check the resistance If resistance is infinite replace it...

Страница 60: ...button faulty operation Confirm icing causes and repair switch operation Press button to check Replace door switch Faulty button pressure and contact Press button to check operation Door cannot press door switch Door sag fix door button Check visually Door liner bent replace door or attach sheets Bad radiation conditions in Check the clearance between the Keep clearance between The fan may be comp...

Страница 61: ... pressure side 3 Check silver soldered parts Cu Fe Fe Fe 4 Check bending area of wire condenser pipe in compressor compartment cracks can happen during bending 5 Check other parts compressor compartment and evaporators in freezer compartment Shortage of refrigerant Check frost formation on the surface Find out the leaking area repair Drier must be replaced of evaporator in the freezer evacuate and...

Страница 62: ...e weld If it is warm it s OK joints might be clogged If it is not condenser outlet weld Disconnect with torch remove the joints might be colgged causes evacuate and recharge seal refrigerant Leak at loop pipe weld joint Check sequence Replace the compressor weld Drier must be replaced discharge in compressor 1 Manually check whether evacuate and recharge refrigerant condenser is warm It is not war...

Страница 63: ...mpurities by inserting are clogged of ice insert the copper line copper wire Turn off more than 1 Impurities through the hole to check 3hours and pour in hot water if 2 Ice 2 Put hot water into the drain frost is severe check drains outside 2 Put in hot water to melt down frost 3 Check the water outlet 4 Push the heater plate to sucking duct manually and assemble the disconnected parts Gap between...

Страница 64: ...k by inserting soft copper 3 Reassemble the heater plate wire into the duct soft and thin copper not to impair heating wire Bad cool air inflow and discharge 1 Turn on power open or close the 1 Check the faulty connector of and bad defrosting due to faulty door check that motor fan housing and reassemble wrongly contact and insertion bad connector operates If it operates motor fan assembled parts ...

Страница 65: ...asket attachment Replacement should compartment Check door assembly conditions conditions and replace it be done when it Faulty gasket Door assembly and replacement cannot be repaired Faulty assembly 3 Overcooling in the refrigerator Check refrigerator compartment Replace faulty parts compartment is overcooled when button Faulty damper in the refrigerator pressed on weak compartment Check parts ar...

Страница 66: ...artment door Check gasket attachment Correct the gasket attachement Replace when it can not Icing in the Faulty gasket conditions conditions and replace it be repaired shute Faulty assembly Check door assembly conditions Door assembly and replacement 3 Over freezing in the freezer Refrigerator operates pull down Replace defective parts compartment Check if it is operated Faulty MICOM intermittentl...

Страница 67: ... inserting 6 Adjust fan to be in the center of conditions in pipes bell mouth of the fan guide 2 3 Touch pipes with hands or screw 7 Leve a clearance between driver check the change of interfering parts and seal gaps in sound the structures 8 Reassemble the parts which make 3 Fan operation sound in the freezer 3 1 Check fan insertion depth and sound compartment blade damage 9 Leave a clearance if ...

Страница 68: ...ion with rubber 4 Moving wheel vibration 2 2 Check capillary tube touches and restrainer if it is severe 5 Other structure and parts cover back especially compressor and pipe vibration 3 1 Check compressor stopper 4 Replace compressor stopper if it vibration vibtates severely 4 1 Check vibration of front and rear moving wheels 5 1 Touch other structures and parts Irregular sound 1 It is caused by ...

Страница 69: ...ain the principles of freezing cycles Water boiling or It happens when refrigerant passes Check the sound when compressor is Explain the principles of freezing cycles flowing sound orifice in accumulator internal pipes by turned on and refrigerant flowing phenomenon by the pressure difference between Check the sound when compressor is internal pressure difference condenser and evaporator turned of...

Страница 70: ...nyl wraps Chedk food cleanliness Clean the refrigerator and set button at strong Plastic Odor Odors of mixed food and plastic Check wet food is wrapped with Clean the refrigerator odors plastic bowl and bag Persuade customers not to use It happens in the new refrigerator plastic bag or wraps with wet food or odorous foods Odor from the Odor from the old deodorizer Check the deodorizer odors Dry th...

Страница 71: ...rts 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 Abnormal Bad connection Lead Wire connecting Check Lead Wire terminals Reconnect Lead display LCD between Main P...

Страница 72: ...nce characteristics table of sensor in circuit Freezer sensor is Confirm the color of sensor in Repair main PCB explanation substituted for other circuits main PCB sensor sensor housing sensor housing Defective freezer fan Fan motor lead wire Check fan motor lead wire Reconnect lead motor is cut with a tester wire Defective door switch Measure the voltage between Replace door Refer to load freezer...

Страница 73: ...it explanation Foreign materials in Step Check Step Motor damper Remove foreign Motor damper baffles baffle visually materials Ice formation on Check if Step Motor damper Replace Step Motor Step Motor damper Heater wire is cut with a damper or refrigerator baffles tester control Box Assembly Defective refrigerator Defective refrigerator Check the resistance of Replace refrigerator Refer to sensor ...

Страница 74: ...explanation Defective Buzzer Defective connecting lead wire 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 Defective Buzzer does Key input wire is cut or bad connector Check input wire with a tes...

Страница 75: ...e associated with lever Repair lead wire dispenser are not Main PCB to lever switch switch 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 De...

Страница 76: ...acuum Torr Below 0 03 ref Note Only applicable to the model degree equipped with reverse flow protect plate 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 L Vacuum EA Use R134a To protect The rubber pipes for R12 refrigerant shall piping exclusive mixing of be melted when they are...

Страница 77: ...ile refrigerator operates scales punching off flier Weld carefully after inlet pinching gas welding machine Check leak at weld joints Electronic Leak Detector Minute leak Use electronic leak detector Driver Ruler Big leak Check visually or fingers Note Do not use soapy water for check Check cooling capacity Check radiator manually to see if warm Check hot line pipe manually to see if warm Check fr...

Страница 78: ... leak will happen 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 kg cm2 5 Others 1 Nitrogen or refrigerant R134a only should be used when cleaning inside of cycle pipes inside and sealing 2 Check leakage ...

Страница 79: ... is not necessary because it does not produce oxidized scales inside pipe because of its short welding time 3 Replacement of drier Inserting a capillary tube Measure distance with a ruler and put a mark 12 3 0 on the capillary tube Insert tube to the mark and weld it KEYPOINTING Observe the sequence for removal of refrigerant If not compressor oil may leak KEYPOINTING Welding without nitrogen blow...

Страница 80: ...d measure the weight Calculate the weight of refrigerant charged into the bombe by subtracting the weight of an evacuated bombe KEYPOINTING If power is applied during vacuum degassing vacuum degassing shall be more effective Operate compressor while charging refrigerant It is easier and more certain to do like this KEYPOINTING Be sure to charge the refrigerant at around 25 C Be sure to keep 5g in ...

Страница 81: ...ndenser Drier Evaporator Bombe 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 overheating if...

Страница 82: ...azer Copper Silver Brazer Silver Brazer Copper Brazer Copper Brazer Copper Brazer Coppper Brazer Silver Brazer Copper Silver Brazer PIPE ASSEMBLY JOINT PIPE ASSEMBLY HOT LINE Freezer PIPE ASSEMBLY JOINT CONDENSER ASSEMBLY WIRE PIPE ASSEMBLY SUCTION DRIER ASSEMBLY CAPI TUBE Copper Brazer Copper Silver Brazer Silver Brazer Copper Brazer Copper Brazer Copper Brazer Coppper Brazer Silver Brazer 1 Asia...

Страница 83: ... 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 Clunk sound 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 This sound is...

Страница 84: ... also makes sound When water Noise from motor sounds Whizz 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 Noise when supplying water Explain the principles of water supplied to dispenser When the water supply button in the dispenser is pres...

Страница 85: ...stics 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 Refrigeration is too strong Check the position of temperature control button Check if refrigeration is strong in whole area of the refrigerator or partly near the outlet o...

Страница 86: ...tton at strong Frost in the freezer compartment 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 as cold air mi...

Страница 87: ...iner or in the wrap When is the power connected 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 Be sure to connect the power 2 3 hours after refrigerator is ...

Страница 88: ...cket hinge pin is deformed during assembling freezer and refrigerator doors fix two screws Tap Tite Screw M6 Hinge L fixing screw in the hole of upper hinge 3 Disconnect upper hinge a from a hinge supporter b by grasping the front part of upper hinge and lifting up Hinge Assembly U in arrow direction A and pull forward in arrow B direction Be careful as the door may be fallen down 4 Lift up the fr...

Страница 89: ...ecting 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 A of a grille fan L from the main body 4 Disassembly of a grille fan L Hold upper part of a grille fan L and pull forward carefully 5 Loosen two screws 6 Disassembly of shroud F U Disconnect housing of B after removing t...

Страница 90: ...over and Valve Screw 5 Separate the housing and pull out the valve 5 FAN AND FAN MOTOR DISASSEMBLY METHOD 1 Using a short screwdriver loosen one SCREW in DRAIN PIPE ASSEMBLY and one connected to the MOTOR COVER 2 Pull and separate the FAN ASSEMBLY and MOTOR turning counterclockwise based on the MOTOR SHAFT The assembly is in the reverse order of the disassembly and take special care for the follow...

Страница 91: ...g the display frame from its housing 4 Loosen four screws with a phillips screwdriver and pull the funnel assembly to disconnect 5 The duct cap assembly can be disconnected if the hold lever connecting screw is loosened with a phillips driver 6 To install the duct cap assembly insert one end of the spring into the right hole of the dispenser lever and insert the other end into the right hole in th...

Страница 92: ... DISPENSER 3 DECO FRAME DISPLAY 4 PWB PCB ASSEMBLY DISPLAY 7 FUNNEL ASSEMBLY 8 MICRO SWITCH 9 FRAME FUNNEL 10 LEVER SWITCH 11 FUNNEL 12 BUTTON LEVER 13 HOLLDER BUTTON 14 SOLENOID ASSEMBLY 15 SPRING 16 LEVER HOLDER 17 CAP ASSEMBLY DUCT 18 CAP DUCT 19 DISPENSER LEVER 20 FOAM NEW 21 RUBBER CAP 22 DECO DRAIN NOTE Not every model includes every option ...

Страница 93: ...FREEZER DOOR PART GR P227 P257 L227 L257 EXPLODED VIEW 94 210B 210B 210B 611B 600A 606A 612A 614A 610A 202A 200A 203A 201A 205A 205B 205D 205C ...

Страница 94: ...Ref No GR L227 GR L257 REFRIGERATOR DOOR PART Optional part EXPLODED VIEW 97 240A 240A 243A 241B 241C 241A 243A 240E 240D 240C 232A 233A 230A 212G 231A 205A 205B 205D 205C ...

Страница 95: ...t EXPLODED VIEW 98 408A 302B 400A 270A 271B 271A 103A 312A 402A 152A 128E 128F 272A 623B 621B 621A 135B 128C 128D 128C 128D 137B 136D 136A 136B 403A 136C 137A 125A 126A 120B 120D 120D 120C 125A 101B 312B 312C 135A 105B 130A 401A 316B ...

Страница 96: ...A 165C 166G 165C 166C 166A 166B 166E 624A 624A 624A 270B 625A 271B 271C 103A 116A 272B 151A 155A 146B 626B 626A 626C 101A 151B 151C 624C 401A 146A 402A 152A 162A 162B 177A 177B 149E 140A 140A 160A 161A 166H 165C 166G 165C 166C 166A 166B 161C 161D 166E 140A 150B 115B 115C 115A 150A EXPLODED VIEW 99 ...

Страница 97: ...l part EXPLODED VIEW 100 409B 120E 160A 165A 166C 166A 166B 166G 624A 270B 271B 271C 103A 116A 272B 151A 155A 626B 626A 626C 101A 151C 151B 624C 401A 146A 402A 152A 162A 162B 177A 177B 171A 141B 161E 166M 140A 150B 115C 115B 115A 150A 171B 140A 140A 170A ...

Страница 98: ...ICE WATER PART Optional part EXPLODED VIEW 101 404A 620A 619A 619A 625A 616G 616F 627A 624B ...

Страница 99: ...MPARTMENT Optional part EXPLODED VIEW 102 304A 313A 410H 500A 502B 502A 305C 305B 305C 305B 305A 406A 300A 310B 307A 317B 317A 307A 316A 308C 403B 328A 104A 310A 301A 308B 309A 309C 309B 303C 303B 303A 306A 308A ...

Страница 100: ...DISPENSER PART Optional part EXPLODED VIEW 103 278A 402C 405A 275A 276A 278B 278C 276B 279A 279B 281A 280C 280B 280A 501A 278D 278F 601A 605A 602A 604A 603B 603A 600A 600A ...

Страница 101: ...P No 3828JD8966P October 2008 Printed in Korea ...

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