LG GR-B207WVQ.CSWQAGE Скачать руководство пользователя страница 12 | Manualshive

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Note1) In error of outside sensor, setting temperature for freezing/ cold storage is normally displayed and indicated “Er” on

the outside temperature display part (normally displayed except for the outside temperature display part).

Note2) Nonconforming contents of poor R2 sensor, ice-making sensor and ice-making kit are displayed in LED check, not

indicated on the failure display part (when pressing freezing temperature adjustment button and special freezing

button for a second or more).

HOME BAR SENSOR

A

A

B

B

C

C
D
D

2-10. Test Function

1. The purpose of test function is to check function of the PWB and product and to search for the failure part at the failure

status.

2. Test button is placed on the main PCB of refrigerator (test switch), and the test mode will be finished after maximum 2

hours irrespective of test mode and then is reset to the normal status.

3. Function adjustment button is not perceived during performance of test mode but only warning sounds ring.
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.

Test 1

Test 3

Test 2

Normal

Status

Mode

Manipulation

Content

Remarks

Press test button once
(freezing force mode)

Press test button once at
the test mode 2 status
(compulsory frost removal
mode)

Press test button once at
the test mode 1 status
(compulsory frost removal
mode)

Press test button once at
the test mode 3 status
(freezing force mode)

1. Continuous operation of compressor
2. Continuous operation of freezing room fan

(high speed RPM) and M/C room fan

3. Frost removal heater OFF
4. Full opening status (baffle opened) status of

electronic step motor damper

5. All display LED graphics - ON.

1. Compressor OFF
2. Freezing room fan and M/C room fan is

turned off.

3. Frost removal heater ON
4. Full closing status (baffle closed) status of

electronic step motor damper

5. All display LED graphics - OFF

(88LED: Except for (A)22 (B)22 LEDs

Bar, Dot LED: Except for only middle Notch
Bar Graphics)

1. Compressor OFF

2. Freezing room fan(high speed RPM) and

M/C room fan is turned off.

2. Freezing room fan(normal speed RPM) and

M/C room fan is turned off.

3. Frost removal heater OFF

4. Full closing status (baffle closed) status of

electronic step motor damper

5. All display LED graphics - OFF

(88LED: Except for (A)22 (B)22 LEDs

Bar, Dot LED: Except for only middle Notch
Bar Graphics)

Return to the initial status.

Compulsory function

Compulsory function

Check freezing room fan

Compressor is operated
after 7 minutes.

MICOM FUNCTION

-

12

-

•

Return to the normal

mode when the defrost

sensor is above +5

•

°C

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Содержание GR-B207WVQ.CSWQAGE

Страница 1: ...UTION PLEASE READ CAREFULLY THE SAFETY PRECAUTIONS OF THIS BOOK BEFORE CHECKING OR OPERATING THE REFRIGERATOR REFRIGERATOR SERVICE MANUAL http biz lgservice com MODEL GR B207WVQ CSWQAGE Color Super White ...

Страница 2: ...HE ICEMAKER 7 MICOM FUNCTION 8 12 EXPLATION FOR MICOM CIRCUIT 13 EXPLANATION FOR PWB CIRCUIT 13 COMPENSATION CIRCUIT FOR WEAK COLD OVER COLD AT FREEZING ROOM 14 PWB PARTS DRAWING AND LIST 35 PWB CIRCUIT DIAGRAM 25 CIRCUIT 26 TROUBLE DIAGNOSI S 27 TROUBLE SHOOTING 37 FAULTS 45 COOLING CYCLE HEAVY REPAIR 57 HOW TO DEAL WITH CLAIMS 65 HOW TO DISASSEMBLE AND ASSEMBL E 66 DOOR 66 HANDLE 67 SHROUD GRILL...

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 COMPRESSOR P T C Starting Type EVAPORATOR Fin Tube Type CONDENSER Wire Condenser REFRIGERANT R134a 180g LUBRICATING OIL FREOL 10G 310 cc DRIER ID 0 83 ITEMS SPECIFICATIONS CAPILLARY TUBE MOLECULAR SIEVE XH 7 FIRST DEFROST 4 5 Hours DEFROST CYCLE 13 15 Hours DEFROSTING DEVICE Heater Sheath ANTI FREEZING HEATER Damper Heater FREEZER LAMP 40W 1 EA REFRIGERATOR LAMP 40W 1 EA Front View Plane View 3 ...

Страница 5: ...PARTS IDENTIFICATION 5 Frame Display Cover PWB 2 Ref No Conversion switch Meats Vegetables ...

Страница 6: ...into the groove of adjusting screw and rotate driver in arrow direction clockwise until the refrigerator becomes horizontal HOW TO INSTALL REFRIGER ATOR 6 1 1 2 2 Adjusting Adjusting Driver Driver Even if the height can not be aligned by using the height adjustment screw insert the transparent sheet supplied with the product Bottom bracket Transparent sheet Bottom hinge Separate the door with the ...

Страница 7: ...ng the lower part of the filter turn it counterclockwise 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 the refrigerator To place the top shelf of the refrigerator raise the front part of the shelf a bit so that the hook of the shelf is fit into the groove In ord...

Страница 8: ...ition of freezer and refrigerator compartments shall not be indicate in the standard model when refrigerator or home bar door is closed Divisio n Power Initial ly On 1st Pres s 2nd Pres s 3th Pres s 4th Press 19 C 3 C 22 C 2 C 23 C 0 C 15 C 6 C 17 C 4 C Change of Indication Lamp Temperature Control Middle Middle Strong Strong Weak Middle Weak 19 C 18 C 19 C 3 C 2 C 1 5 C 1 C 0 C 0 C 6 C 4 5 C 4 5 ...

Страница 9: ...OFF 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 4 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 storage room or ho...

Страница 10: ...n i y l p p a n I E D O M T S E T When temperature of a frost removal sensor becomes more than 45 C In purchase movement If error occurs during operation initial operation is not done If pressing switch once more in the test mode 2 or temperature of a frost removal sensor is more than 5 C it immediately returns to the test mode for initial operation COMP operates after 7 minutes When temperature o...

Страница 11: ... t Heater M C room Fan Product operation status in failure Failure of freezer sensor Failureofrefrigerator sensor1 Failureofrefrigerator sensor2 Failure of frost removal sensor Poor of frost removal FailureofBLDCFAN atfreezingroom FailureofBLDCFAN atmachineroom Failure of Communication Failure of Outside Sensor Failure of ice removal sensor Failure of ice maker unit Snapping or short circuit of fr...

Страница 12: ...ode will not be performed Test 1 Test 3 Test 2 Normal Status Mode Manipulation Content Remarks Press test button once freezing force mode Press test button once at the test mode 2 status compulsory frost removal mode Press test button once at the test mode 1 status compulsory frost removal mode Press test button once at the test mode 3 status freezing force mode 1 Continuous operation of compresso...

Страница 13: ... of IC1 MICOM The OSC1 must always use rated parts since if SPEC is changed time calculated at the IC1 may be changed or no operation is done 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 spontaneou...

Страница 14: ...cuit 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 EXPLATION FOR MICOM CIRCUIT 14 Measuring part IC4 Status The circuit has been only applied to voltage except 220v ON Within 1 V OFF 12 V Type of Load Frost Removal Heater R room LAMP Home ba...

Страница 15: ...or the home bar switch e f EXPLATION FOR MICOM CIRCUIT 16 Closing 5 V A B C D S W at both ends are at Off status Opening 0 V A B C D S W at both ends are at On status Measuring part IC1 MICOM No 47 46 Pin Door of Freezing Cold Storage Room CONDITIONS Bell sounds when button on Beep sounds when warning MEASURING dosplay is pressed door opening OFF POINTS IC1 No 50 Pin 0 V IC1 No 50 Pin 0 V 0 05 s 2...

Страница 16: ...cuits are accurately pre adjusted in shipment from factory and so you must not additionally add or remove option EXPLATION FOR MICOM CIRCUIT 17 Separatio n Connection Status Application Standard Connectio OTHER AREA VOLATILE OP1 OUT Domestic 1 7 Stepping motor operation circuit Connection DISPENSER MODEL OP2 OUT NON DISPENSER MODEL For motor driving method rotation magnetism is formed at coils wou...

Страница 17: ...ation Positive rotation 1 8 Temperature compensation and over cool weak cool compensation circuit 1 Temperature compensation at freezing room cold storage room 冷藏室温度补偿冷冻室温度补偿 Freezing room Temperature compensation Temperature compensation Refrigerator room Resistance value RC F1 Resistance value RC F1 Remarks Reference temperature Warmly compensate Coolly compensate 180 kΩ 5 C 180 kΩ 2 5 C 56 kΩ ...

Страница 18: ... 5 6 kΩ Down Down Down 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 Rerigerator 8 2 kΩ Down Down Down Drop change Up Up Up Up Up Up room 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 RCR1 10 kΩ 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 kΩ Down Down Down Down Down Down change Up Up Up Up 3 5 C 3 ...

Страница 19: ...n Compensation for weak cold for over cold Temperature compensation value Remarks JCR3 JCR4 JCR1 JCR2 at cold storage room 0 C In shipment from factory CUT 1 C CUT 1 C CUT 1 C CUT 1 C CUT CUT 2 C CUT CUT 2 C CUT CUT 0 C CUT CUT 0 C CUT CUT 0 C CUT CUT 0 C CUT CUT CUT 1 C CUT CUT CUT 1 C CUT CUT CUT CUT 0 C EXPLATION FOR MICOM CIRCUIT 19 Temperature compensation in CUT JCR1 1 JCR2 1 2 JCR3 1 JCR4 1...

Страница 20: ...and Display Lighting Circuit 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 EXPLATION FOR MICOM CIRCUIT 21 ...

Страница 21: ...nsor 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 22 Measuring Temperature C Freezing Sensor Refrigerator sensor 1 2 Defrost sensor Ambient sensor 20 C 22 3 kΩ 77 kΩ 15 C 16...

Страница 22: ...23 2 PWB Parts Drawings and List 2 1 PWB Assembly Main Parts Drawings EXPLATION FOR MICOM CIRCUIT ...

Страница 23: ...EON HO YEON HO DOOSAN DOOSAN SAM IL SMC TMP87PM41N 64P SDIP ST OTP VIKING PJT BEST 1BCMDEFN 6920JB2005B RELAY G5JS 1A NT OMRON 250VAC 16A 12VDC 1A NO VENTING 3 6920JB2005C RELAY DH1U 11 DEC 250VAC 16A 12VDC 1A VENTING 6920JB2005B 6920000001A 6920JB2005C RELAY RELAY RELAY G5JS 1A NT OMRON 250VAC 16A 12VDC 1A NO VENTING 3 ALE15B12 MATSUSHITA 250VAC 16A 12VDC 1A NO VENTING DH1U 11 DEC 250VAC 16A 12VD...

Страница 24: ...IXED CARBON FILM 6630JB8007N SMART CHOHYANG RESISTOR FIXED CARBON FILM SMART CHOHYANG 0RD4701G609 CAPACITOR FIXED ELECTROLYTIC 0RD1002G609 0RN2612G409 RESISTOR METAL GLAZED CHIP MAGIC ROOM MURATA RESISTOR FIXED METAL FILM SMART CHOHYANG KEC 0RH0000L622 CAPACITOR FIXED ELECTROLYTIC 0TR106009AC CONNECTOR CIRC WAFER ROHM TRANSISTOR BIPOLARS SMART CHOHYANG 107 103 108 101 96 105 98 104 100 99 106 97 J...

Страница 25: ...CIRCUIT The circuit has been only applied to voltage except 220v 52 ...

Страница 26: ... 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 Capacity of O L P is small CharacteristicsofO L Pisbad Badconnection Poweris disconnected InnerNi Crwireblowsout Bad intern...

Страница 27: ...itintheair Moisturepenetration intotherefrigerationoil Capsaremissed Airblowing Duringtransportation During work Notperformed Performed Tooshorttime Lowairpressure Lessdryair AirBlowing Leaveitintheair Capsaremissed Shortpipeinsert Pipe gaps Toomuchsolder Toolarge Damagedpipes Notdriedinthecompressor Elapsedmorethan6monthsafterdrying Capsaremissed Nopressurewhenitisopen During rest time Afterwork ...

Страница 28: ...oreignmaterials penetration Cap drain is not disconnected Injectthroughthe hole Seal with drain P U lump input Screw input Otherforeignmaterials input Parts disconnected Wire is cut Leadwire Heatingwire Contactpoint betweenheatingand electricwire Dentbyfineevaporator Heatingwireiscorroded Waterpenetration Badterminalconnection Check visually Check terminal Conduction OK No conduction NG If wire is...

Страница 29: ...ocation thickness Structural fault Gasket gap Airinflowthroughthefanmotor Badinsulationofcasedoor SheathHeater rated Heaterplate rated Gap Badattachment Contraction Badadhesion Weakbindingforceathinge Fanmotor Door switch Self locked Wire is cut Badterminalcontact Contact distance Buttonpressure Meltedcontact Contact Poordoor attachment Door liner dimension Contractioninner liner Misalignment Badt...

Страница 30: ...constrained Insufficient motorRPM Faultyfan Shorud Bent Iceandforeignmaterialsonrotatingparts Fanshroudcontact Clearance Dampingevaporatorcontact Accumulatedresidualfrost Fanmisuse Bad shape Looseconnection Nottightlyconnected Insertdepth Ratingmisuse Smallcapacity Lowvaltage Malfunction of charging cylinder Wrongsettingofrefrigerant Insufficient compressor Faulty compressor Fanoverload Fanmisuse ...

Страница 31: ... 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 Space is secluded Differentrating...

Страница 32: ...r 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 vibration...

Страница 33: ...fault Coregap Bad connection Correct screw connection Bad assembly Distortion Foreignmaterialsinside Badconnection Partlydamaged Not connected Badpipecaulking Normaloperatingsound Vibrationsound Agedrubberseat Badtorqueforassemblingmotor bracket Fanguidecontact Shroudburrcontact Dampingevaporatorcontact Residualfrostcontact Unbalance Iceonthefan Airintake oppositetomotor rubberassembly Supporterdi...

Страница 34: ...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 35: ...weendoorlinerandinnerliner Refrigerator compartmentis openedwhenfreezer compartmentis closed faultystopper High Faultydampercontrol Buttonissetat weak Doorisopen interferenceby food No deodorizer Poor capacity Seal condition Store special odorous food Longtermstorage Odorsfromchemicalprocucts Biggerdoorfoam Hinge Pintilted Poorflatness Nowasher Nogreaseandnotenough quantity Stopperwornout Badfreez...

Страница 36: ...orted 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 does not Vlaue is defective with new one operate If it is not infinite it is normal Check other parts Compressor is frozen If compressor assembly parts are D...

Страница 37: ...act 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 compressor compartment refrigerator and wall 50 mm in refrigerator and walls minimum broken if cleaning minimum 50mm performs while the Check dust on ...

Страница 38: ...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 recharge the compartment refrigerant If the frost forms evenly on the No leaking remove the remaining surface it is OK refrigerant and recharge new If it does not it is not good r...

Страница 39: ...weld Drier must be replaced discharge in compressor 1 Manually check whether evacuate and recharge refrigerant condenser is warm It is not warm and the frost forms partly on the evaporator in the freezer compartment Faulty cooling fan in the compressor Check sequence Replace if motor does not operate compartment 1 Check cooling fan operation If fan is disconnected check fan 2 Check that cooling fa...

Страница 40: ...r outlet 4 Push the heater plate to sucking duct manually and assemble the disconnected parts Gap between Sucking duct and 1 Confirm in the Sucking duct 1 Turn off the power confirm Heater plate Ice in the gap impurities and ice in the gap and supply hot water until the ice in the gap melts down 2 Push the Heater plate to drain bottom with hand and assemble the disconnected parts Wrong heater rati...

Страница 41: ... 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 insertion into housing of heater is OK 2 If the parts are very damaged melting fuse and motor fan 2 Disconnect parts in the refrigerator remove the parts and replace it compartment check the connection with a new one around the...

Страница 42: ...rator pressed on weak compartment Check parts are faulty Faulty MICOM faulty sensor 4 Bad defrosting Check frost on the evaporator Check parts related to defrosting Moisture cannot frost Heater wire is cut after dissembling shroud and fan Check defrosting Check ice on the on the evaporator but Defective defrost sensor grille evaporator and pipe can be sucked into the Defrosing cycle Check ice on i...

Страница 43: ...Check if it is operated Faulty MICOM intermittently The Temperature of freezer compartment is satisfactory but over freezing happens in the refrigerator compartment even though the notch is set at weak 4 Bad defrosting Check frost on the evaporator after Check parts related to defrosting Heater wire is cut dissembling shroud and grille Check defrosting Check ice on the Faulty defrost sensor Check ...

Страница 44: ...he 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 evaporator 3 2 Check the interference with pipes and suction pipe touch structures freezer shroud 3 3 Check fan motor 3 4 Check fan motor rubber insertion and aging conditi...

Страница 45: ... 1 Touch other structures and parts Irregular sound 1 It is caused by heat expansion 1 1 Check time and place of sound 1 Explain the principles of refrigeration Click and contraction of evaporator sources and that the temperature difference shelves and pipes in the between operation and defrosting refrigerator can make sounds 2 If evaporator pipe contacts with other structures leave a clearance be...

Страница 46: ...mpressor is internal pressure difference condenser and evaporator turned off If sound is servere wrap the accumulator with foam and restrainer Sound of whistle When door closes the internal pressure Check the sound by opening and Broaden the cap of discharge hose for when door of the refrigerator decreases sharply closing the refrigerator or freezer doors defrosting in the compressor closes below ...

Страница 47: ...owl 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 the deodorizer with dryer and Deodorizer option deodorizer then in the shiny and windy place Remove and replace the deodorants ...

Страница 48: ...licable to damaged are cut when power is off model with dispenser Abnormal Bad connection Lead Wire connecting Check Lead Wire terminals Reconnect Lead display LED between Main PCB main PCB and display connecting Main PCB and Wire and directly operation and display circuit PCB is cut or connector display PCB with a tester connect defective terminal connection is contact terminal to bad Lead Wire D...

Страница 49: ... 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 refrigerator PCB power blue line and fan switch freezer driving circuits in home bar motor after pressing test switch refrigerator and circuit Defective fan motor of Main PCB If the voltage is home bar explanation Def...

Страница 50: ...Assembly Defective refrigerator Defective refrigerator Check the resistance of Replace refrigerator Refer to sensor sensor sensor parts refrigerator sensor with a tester sensor resistance characteristic table in circuit explanation Refrigerator sensor is Check the sensor color in the Repair main PCB substituted for other circuit main PCB sensor sensor housing sensor housing Defective refrigerator ...

Страница 51: ...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 tester Reconnect lead Refer to display display button not ring and terminal contact in main PCB and wire and replace or circuit in circuit key does not display PCB connecting lead wire directly connect bad explanation sense ...

Страница 52: ...de 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 with a tester Replace defective dispense geared motor cube and relay dispenser solenoid Defective parts associated with ice Check resistan...

Страница 53: ...Vacuum 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 Vacuum EA Use R134a To protect The rubber pipes for R12 refrigerant shall piping exclusive mixing of be melted when they are ...

Страница 54: ...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 55: ...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 blowing ...

Страница 56: ... 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 57: ...easure 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 the...

Страница 58: ...ser Drier Evaporator Bombe Rubber 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...

Страница 59: ... 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 Copper Silver Brazer GC B207WLQ CPLQMAG Area M Asia TROUBLE DIAGNOSIS 60 ...

Страница 60: ... 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 61: ... 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 62: ...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 63: ...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 64: ...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 65: ...rator doors fix two screws Tap Tite Screw M6 Hinge L fixing screw in the hole of upper hinge 3 Disconnect upper hinge from a hinge supporter 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 freezer door in arrow direction and disconnect the door from the lower...

Страница 66: ...ked assemble with a new one after sealing well 4 ICEMAKER ASSEMBLY 1 Dispenser Model 1 How to disassemble 1 Remove ice bank from the freezer compartment 2 Loosen two screws on the upper part of icemaker bracket 3 Disconnect icemaker bracket so that it can slide forward 4 Disconnect icemaker housing and sensor housing 5 Disconnect icemaker horizontally by pressing bracket hook part Don t disassembl...

Страница 67: ...202A 200A 210B 201A 203A 205F 279A 207A 279B 501A 280E FREEZER DOOR PART EXPLODED VIEW 280D 205C 205D 205B 205A 210B 210B 210C 210C ...

Страница 68: ...233A 232A 240C 240C 147A 231A 230A 239A 241B 241A 241C 240B 243A 240B 243A 205F REFRIGERATOR DOOR PART EXPLODED VIEW 205C 205D 205B 205A ...

Страница 69: ...36B 403A 136C 137A 408A 302B 316B 400A 128C 128D 128E 128F 131C 131E 131B 131D 154A 131J 132A 131H FREEZER COMPARTMENT EXPLODED VIEW 101A 270A 271B 271A 402A 152A 272A 103A 105B 312A 135B 130A 409B 135A 120D 120B 120B 120C 137C ...

Страница 70: ...R COMPARTMENT EXPLODED VIEW 160A 161A 165A 166C 166A 166B 166G 270B 271B 271C 103A 116A 272B 155A 101B 409B 402B 152A 162A 162B 177A 177B 170A 140A 171B 171A 140A 141A 115B 115F 115A 150A 146A 140A 151A 151B 151C ...

Страница 71: ... 304A 306A 310A 317B 317A 313A 301A 307A 104A 303C 303B 303A 500A 502B 502A 308A 308C 308B 309C 403B 309B 309A 305C 305B 305C 305B 305A 406A 105C 105E 105F 316A EXPLODED VIEW MACHINE COM PARTMENT 303D 105D 407A 407B ...

Страница 72: ......

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