LG GR-P227 YTQA manuale d’uso

CAUTION PLEASE READ CAREFULLY THE SAFETY PRECAUTIONS OF THIS BOOK BEFORE CHECKING OR OPERATING THE REFRIGERATOR. REFRIGERATOR SERVICE MANUAL Ref No : GW-L227 Ref No : GW-C227 Ref No : GW-B227 Ref No : GW-P227 http://biz.lgservice.com[...]

W ARNINGS AND PRECAUTIONS FOR SAFETY ........................................................................................... ..................... 3 SPECIFICA TIONS................................................................................................................................................................... 4 P ARTS IDENTIFIC[...]

Please observe the following safety precautions in order to use safely and correctly the refrigerator and to prevent accident and danger during repair . 1. Be care of an electric shock. Disconnect power cord from wall outlet and wait for more than three minutes before replacing PWB parts. Shut off the power whenever replacing and repairing electric[...]

SPECIFICA TIONS - 4 - ITEMS SPECIFICA TIONS DIMENSIONS (mm) 894(W) X 753(D) X 1753(H) NET WEIGHT (kg) 128(P227), 123(L227),1 19(B227),1 14(B227) COOLING SYSTEM Fan Cooling TEMPERA TURE CONTROL Micom Control DEFROSTING SYSTEM Full Automatic Heater Defrost INSULA TION Cyclo-Pentane COMPRESSOR P .T .C. Starting T ype EV APORA TOR Fin T ube T ype CONDE[...]

P ARTS IDENTIFICA TION - 5 - Cover PWB Water T ube Home Bar Dispenser Cover Assembly Ice & Water Dispenser Button Freezer Compartment Refrigerator Compartment Milk product corner Lamp Shelf Lamp Automatic Icemaker Shelf or Dra wer Shelf or Dra wer Door rack Drawer (2 or 3) Door rack Lower cover Shelf Refreshment center (Optional) Can Server (Op[...]

2. Ref No. : GW-P227/L227(EXTERNAL FIL TER) P ARTS IDENTIFICA TION - 6 - Dispenser Cover Assembly Freezer Compartment Refrigerator Compartment Milk product corner Lamp Shelf Lamp Automatic Icemaker Shelf or Dra wer Shelf or Dra wer Door rack Drawer (2 or 3) Door rack Lower cover Shelf Refreshment center (Optional) Can Server (Optional) Egg Box Vege[...]

P ARTS IDENTIFICA TION - 7 - Cover PWB Home Bar Frame Display Freezer Compartment Refrigerator Compartment Milk product corner Lamp Shelf Lamp Door rack Shelf or Dra wer Shelf or Dra wer Door rack Drawer (2 or 3) Door rack Lower cover Shelf Refreshment center (Optional) Door rack (1piece or 2piece) Egg Box Vegetable Drawer (1 or 2) Wine holder (Pla[...]

1. 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. If the height of freezer door is lower than that of refrigerator compartment : 2. If the height of freezer door is higher than that of refr[...]

2. How to Install W ater Pipe ■ Before Installation 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. Install booster pump where the city water pressure is below 1.5kgf/cm 2 for normal operation of water and ice dispenser . 3. The total length of wa[...]

1. Connection of Pipe Connector A and B. 1) T urn off main valve of water pipe. 2) Disconnect water tap from piping by loosening nuts. 3) Connect pipe connector A and B to piping after sealing the pipe connector with sealing tapes. 4) Connect feed valve to pipe connector A. 5) If there is only one tap water pipe, connect pipe connector A only and i[...]

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). Securely fasten the inlet and outlet nuts of pump. 2. If there is any leakage after installation, cut the water tube at right angle and reas[...]

■ Install W ater Filter (Applicable to some models only) ■ Before Installing water filter 1. Before installing the filter , take out the top shelf of the refrigerator after tilting it to the direction (  ) and lifting it to the direction (  ) and move it to the lower part. 2. Remove the lamp cover by pressing the protrusion under the cove[...]

3. How to Control the Amount of W ater Supplied to Icemaker . 3-1. Confirm the amount of water supplied to the icemaker . 1. Remove the cover bucket : Lift the cover with a slight twisting. 2. Remove the ice bucket : Lift the lower part slightly and take the ice bucket out slowly . • Caution : • Do not put your hands or tools into the chute to [...]

3-2. Control the amount of water supplied to the icemaker . Caution : • Please unplug the power cord from the wall outlet and wait for more than three minutes before disconnecting PCB cover as 310V is applied in the control panel. 1. Disconnect PCB cover from the upper part of the refrigerator . 2. Adjust the amount of water supplied by using DIP[...]

1. Monitor Panel 1-1. GW-P227, GW -L227 1- 2. GW-C227, B227 MICOM FUNCTION - 15 - Optional Function display board T ype-1 (88-LED) T ype-2 (Bar-LED) T ype-1 (88-LED) T ype-2 (Bar-LED) Optional Function display board[...]

1-3. Display Second Function 1. Buzzer sound mute Mode The buzzer sound is set to OFF . It activates by sounding the recognition sound of “ Ding~ ” after pressing and holding “ Express FRZ ” button more than 5 seconds. It inactivates when resetting the mode power . 2. Display Power saving Mode It places display in standby mode until door is[...]

2. Description of Function 2-1. Funnction of T emperature Selection * The temperature can vary ±3 °C depending on the load condition. *( ) : P227, L227 *< > : C227, B227 1. When power is initially applied or reapplied after power cut, “ Medium ” is automatically selected. 2. When the temperature selection switch in the freezer and refri[...]

2-2. Automatic ice maker • The automatic ice maker can automatically make 6 pieces of ice cube at a time, 50~60 pieces a day . But these quantities may be varied according to various conditions including how many times the refrigerator door opens and closes. • Ice making stops when the ice storage bin is full. • If you don ’ t want to use a[...]

2-5. Control of variable type of freezing room fan 1. T o increase cooling speed and load response speed, MICOM variably 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 t[...]

2-10. 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 . 3. Frost removal is completed if temperature of a frost removal sensor becom[...]

2-12. Function of T rouble Diagnosis(88-LED) 1. Failure diagnosis function is function to facilitate service when nonconforming matters affecting performance of product during use of product. 2. In occurrence of failure, pressing the function adjustment button does not perform function and only alarm sound ( “ Ding~ ” ) rings. 3. If nonconformi[...]

MICOM FUNCTION - 22 - 2-13. Function of T rouble Diagnosis(Bar-LED) 1. Function of trouble diagnosis is to make the repair service easy when the refrigerator is out of order during service. 2. The function control button does not work but the recognition sound is heard when the refrigerator is out of order . 3. It returns to normal conditions when [...]

Function of T rouble Diagnosis(88LED) 2-14. T est 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. T est 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 a[...]

- 24 - Function of T rouble Diagnosis(BAR LED) 2-15. T est 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. T est button is placed on the main PCB of refrigerator (test switch), and the test mode will be finished after maximum 2 hours irrespective of te[...]

* LED check function- When freezer and refrigerator temperature control buttons are pressed for more than 1 second at the same time, all LEDS on the display are on. And it returns to the normal conditions when the buttons are released. * Check of freezer fan rpm variation- Freezer fan speed changes from high speed to standard speed and vice versa f[...]

1. Explanation for PWB circuit 1-1. Power circuit Power circuit consists of SMPS (SWITCHING MODE POWER SUPPL Y) 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 [...]

EXPLA TION FOR MICOM CIRCUIT - 27 - <GW-P/L227: 88-LED> <GW-P/L227: Bar-LED>[...]

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 IC1 (MICOM). The OSC1 must always use rated parts since if SPEC is changed, time calculated at the IC1 may be chan[...]

1-4. Load/dispenser 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 not stop and operates at the standard RPM. In addition, if doors of freezing room or cold storage room, the fan motor n[...]

EXPLA TION FOR MICOM CIRCUIT - 30 - <GW-P/L227: Bar-LED>[...]

✽ 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) and (D) of door switch for the freezing room or cold storage room are connected to the door open sensing circuit toward both ends of sw[...]

EXPLA TION FOR MICOM CIRCUIT - 32 - <GW-B/C227: Bar-LED> ASSEMBL Y Measuring part (IC6) No.16 No.1 1 No.12 No.15 No.14 Status ON Within 1 V OFF 12 V T ype of Load COMP Frost Removal Heater AC Converting Relay R-room LAMP Homebar Heater[...]

2. Dispenser operation circuit EXPLA TION FOR MICOM CIRCUIT - 33 - <GW-P/L227: 88-LED> <GW-P/L227: Bar-LED>[...]

1) Check load driving status 2) Lever S/W sensing circuit EXPLA TION FOR MICOM CIRCUIT - 34 - 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.1 1 IC7-No.10 Status ON Within 1 V OFF 12 V T ype of Load GEARED MOTOR SOLENOID CUBE W A TER V AL VE ICE[...]

3. Door opening sensing circuit EXPLA TION FOR MICOM CIRCUIT - 35 - <GW-B/C227: 88-LED> <GW-B/C227: Bar-LED> <GW-P/L227: 88-LED> <GW-P/L227: Bar-LED>[...]

✽ Since door switch sensing switch (A), (B) are a separate switch even if the door switch of the freezing room normally operates, they may fail to sense door 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[...]

1-5. T emperature sensing circuit EXPLA TION FOR MICOM CIRCUIT - 37 - <GW-P/L227: 88-LED> <GW-P/L227: Bar-LED>[...]

The above circuits are circuits attached to freezing room sensor or cold storage room sensor for adjusting setting temperature at the freezing room and cold storage room, ice-making sensor for sensing water temperature in ice-making, or an evaporator for sensing temperature of a frost removal sensor necessary for frost removal. Short or open status[...]

EXPLA TION FOR MICOM CIRCUIT - 39 - <GW-B/C227: 88-LED> E A B C D[...]

The above circuits are circuits attached to freezing room sensor or cold storage room sensor for adjusting setting temperature at the freezing room and cold storage room, ice-making sensor for sensing water temperature in ice-making, or an evaporator for sensing temperature of a frost removal sensor necessary for frost removal. Short or open status[...]

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 . 1-7. Option designation circuit (model separation function) The above circuits are used for designating separation by model as option and notifying it to MICOM. Designation of op[...]

1-8. Stepping motor operation circuit EXPLA TION FOR MICOM CIRCUIT - 42 - <GW-B/C227: 88-LED> <GW-B/C227: Bar-LED> <GW-P/L227: 88-LED> <GW-P/L227: Bar-LED>[...]

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 (T A777AF) at the MICOM PIN 33 and outputting “ High ” , “ Low ” signal by step numbers fixed through MICOM PIN 34 and 35,. Explanation) For driving method of the s[...]

1-9. Fan motor driving circuit (freezing room, M/C room) 1. This circuit performs function to make standby power ‘ 0 ’ 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 temporary change of speed for the fan motor and applies DC voltage up to 7.5V ~ 16V to motor . 3. This circui[...]

EXPLA TION FOR MICOM CIRCUIT - 45 - <GW-P/L227: Bar-LED> b a e d[...]

EXPLA TION FOR MICOM CIRCUIT - 46 - <GW-B/C227: 88-LED> <GW-B/C227: Bar-LED> b a e d b a e d[...]

1-10. T emperature compensation and over-cool/weak-cool compensation circuit 1. T emperature compensation at freezing room, cold storage room EXPLA TION FOR MICOM CIRCUIT - 47 - <GW-P/L227: 88-LED> <GW-P/L227: Bar-LED> <GW-B/C227: 88-LED> <GW-B/C227: Bar-LED>[...]

EXPLA TION FOR MICOM CIRCUIT - 48 - u T emperature compensation table by adjustment value (difference value against current temperature) Ex) If changing compensation resistance at a cold storage room (RCR1) from 10 k Ω (current resistance) to 18 k Ω (modified resistance), temperature at the cold storage will increase by +1 ° C. Ex) Now (R)J1= [...]

u T emperature compensation table at the cold storage room is as follows: u This circuit is a circuit to enter the necessary level of temperature compensation for adjusting different temperature every model at the cold storage room into MICOM. EXPLA TION FOR MICOM CIRCUIT - 49 - 470 Ω 2 k Ω 3.3 k Ω 5.6 k Ω 8.2 k Ω 10 k Ω 12 k Ω 18 k ?[...]

1-1 1. Display Circuit EXPLA TION FOR MICOM CIRCUIT - 50 - <GW-P/L227>[...]

EXPLA TION FOR MICOM CIRCUIT - 51 - <GW-B/C227>[...]

1-12. Key Button Input 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. EXPLA TION FOR MICOM CIRCUIT - 52 - <GW-P/L227: 88-LED> <GW-P/L227: Bar-LED> PCB ASSEMBL Y , DISPLA Y PWB ASSEMBL Y ,[...]

EXPLA TION FOR MICOM CIRCUIT - 53 - <GW-B/C227: 88-LED> <GW-B/C227: Bar-LED>[...]

2. Compensation circuit for weak-cold, over -cold at freezing room u The above option circuit is a circuit to compensate for temperature at the cold storage room by simply cutting in service. <GW-P/L/B/C227: 88-LED> <GW-P/L/B/C227: Bar-LED> Compensation Compensation for weak-cold for over-cold T emperature compensation value Remarks JCR[...]

3. PWB Parts Drawings and List 3-1. PWB Assembly Main Parts Drawings EXPLA TION FOR MICOM CIRCUIT - 55 - <GW-P/L227: 88-LED>[...]

EXPLA TION FOR MICOM CIRCUIT - 56 - <GW-P/L227: Bar-LED>[...]

EXPLA TION FOR MICOM CIRCUIT - 57 - <GW-B/C227: 88-LED>[...]

EXPLA TION FOR MICOM CIRCUIT - 58 - <GW-B/C227: Bar-LED>[...]

3-2. Parts List EXPLA TION FOR MICOM CIRCUIT - 59 - <GW-P/L227: 88-LED>[...]

EXPLA TION FOR MICOM CIRCUIT - 60 - <GW-P/L227: 88-LED>[...]

EXPLA TION FOR MICOM CIRCUIT - 61 - <GW-P/L227: Bar-LED>[...]

EXPLA TION FOR MICOM CIRCUIT - 62 - <GW-P/L227: Bar-LED>[...]

EXPLA TION FOR MICOM CIRCUIT - 63 - <GW-B/C227: 88-LED>[...]

EXPLA TION FOR MICOM CIRCUIT - 64 - <GW-B/C227: 88-LED>[...]

EXPLA TION FOR MICOM CIRCUIT - 65 - <GW-B/C227: Bar-LED>[...]

EXPLA TION FOR MICOM CIRCUIT - 66 - <GW-B/C227: Bar-LED>[...]

1. W orking Principles 1-1. Ice Maker Working Principles 1-2. Dispenser Working Principles 1. This function is available in Model GW-P227, GW -L227 where water and ice are available without opening freezer compartment door . 2. “Crushed Ice” is automatically selected when power is initially applied or reapplied after power cut. 3. When dispense[...]

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. The detecting lever moves up and down. 2. The level of ice maker cube mould is judged by output signal, high and low signal, of Hall IC. Make the c[...]

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. If the ice bucket is full, ice ejection motor rotates in normal direction in every hour to[...]

2-5 T est Function 1. It is to force the operation during operation test, service, and cleaning. The test switch is mounted under the automati c ice maker . The test function starts when the test switch is pressed for more than 0.5 second. 2. T est button does not work during ice ejection and water supply . It works when it is in the horizontal con[...]

3. Ice Maker T roubleshooting * T roubleshooting: it is possible to confirm by pressing freezer and refrigerator temperature control buttons for more than 1 second. (ice maker is normal if all leds are on): refer to trouble diagnposis function in MICOM function 2-8 (page 18) <GW-P/L227: 88-LED> ICE MAKER AND DISPENSER WORKING PRINCIPLES AND R[...]

- 72 - <GW-P/L227: Bar-LED> ICE MAKER AND DISPENSER WORKING PRINCIPLES AND REP AIR No Yes Yes Yes No No No No Yes Yes Is DC Power (5V and 12V) output normal? Failed DC Power • Check DC power (5V, 12V). Change main PWB Is cube ice led off during troubleshooting check? Failed ice making sensor • Check the resistance of both ends (1,2) of ic[...]

CIRCUIT - 73 - <GW-P/L/B/C227: 88-LED>[...]

CIRCUIT - 74 - <GW-P/L/B/C227: Bar-LED>[...]

1. TROUBLE SHOOTING TROUBLE DIAGNOSIS - 75 - CLAIMS. CAUSES AND CHECK POINTS. HOW TO CHECK 1. Faulty start 1) No power on outlet. 2) No power on cord. 3) Shorted start circuit. 4) During defrost. * Measuring instrument : Multi tester ■ Check the voltage. If the voltage is within ± 85% of the rated voltage, it is OK. ■ Check the terminal moveme[...]

TROUBLE DIAGNOSIS - 76 - CLAIMS. CAUSES AND CHECK POINTS. HOW TO CHECK 2. No cooling. 2) Refrigeration system is clogged. ■ Check the clogged evaporator by heating (as soon as the cracking sound begins, the evaporator start freezing) ■ The evaporator does not cool from the beginnig (no evidece of misture attached). The evaporator is the same as[...]

TROUBLE DIAGNOSIS - 77 - CLAIMS. CAUSES AND CHECK POINTS. HOW TO CHECK 3. Refrigeration is weak. Heater Sheath 1) Refrigerant Partly leaked. 2) Poor defrosting capacity . Drain path (pipe) clogged. Defrost heater does not generate heat. Weld joint leak. Parts leak. Inject P/U into drain hose. Foreign materials penetration. Cap drain is not disconne[...]

- 78 - TROUBLE DIAGNOSIS CLAIMS. CAUSES AND CHECK POINTS. HOW TO CHECK 3. Refrigeration is weak. 3) Cooling air leak. 4) No cooling air circulation. Residual frost. No automatic defrosting. Defrost does not return. Bad gasket adhestion Door sag. Faulty fan motor . Weak heat from heater . T oo short defrosting time. Defrost Sensor . - Faulty charact[...]

TROUBLE DIAGNOSIS - 79 - CLAIMS. CAUSES AND CHECK POINTS. HOW TO CHECK 3. Refrigeration is weak. 4) No cooling air circulation. 5) Compressor capacity . 6) Refrigerant too much or too little. 7) Continuous operation - No contact of temperature controller . - Foreign materials. 8) Damper opens continuously . Foreign materials jammed. Failed sensor .[...]

TROUBLE DIAGNOSIS - 80 - CLAIMS. CAUSES AND CHECK POINTS. HOW TO CHECK 4. W arm refrigerator compartment temperature. 5. No automatic operation. (faulty contacts.) 6. Dew and ice formation. 1) Colgged cooling path. 2) Food storate. 1) Faulty temperature sensor in freezer or refrigerator compartment. 2) Refrigeration load is too much. 3) Poor insula[...]

TROUBLE DIAGNOSIS - 81 - CLAIMS. CAUSES AND CHECK POINTS. HOW TO CHECK 6. Dew and ice formation. 7. Sounds 4) Dew on door . Dew on the duct door . - Duct door heater is cut. Dew on the dispense recess. Dew on the door surface. Not fully filled. Surface. Cormer . P/U liquid contraction. Dew on the gasket surface. 5) W ater on the floor . Dew in the [...]

TROUBLE DIAGNOSIS - 82 - CLAIMS. CAUSES AND CHECK POINTS. HOW TO CHECK 7. Sounds 1) Compressor compartment operating sounds. T ransformer sound. Drip tray vibration sound. Back cover machine sound. Condenser drain sound. 2) Freezer compartment sounds. Fan motor sound. Sounds from fan contact. Unbalance fan sounds. Motor shaft contact sounds. Resona[...]

TROUBLE DIAGNOSIS - 83 - CLAIMS. CAUSES AND CHECK POINTS. HOW TO CHECK 8. Faulty lamp (freezer and refrigerator compartment). 9. Faulty internal voltage(short). 1) Lamp problem. Filament blows out. Glass is broken. 2) Bad lamp assembly . Not inserted. Loosened by vibration. 3) Bad lamp socket. Disconnection. Bad soldering. Bad rivet contact. Short.[...]

TROUBLE DIAGNOSIS - 84 - CLAIMS. CAUSES AND CHECK POINTS. HOW TO CHECK 10. Structure, appearance and others. 1) Door foam. Sag. Noise during operation. Malfunction. 2) Odor . T emperature of refrigerator compartment. Deodorizer . Food Storage. Others. Weak torque of hinge connection. Weak gasket adhesion. Fixed tape. Hinge interference. Not closed [...]

2. Faults 2-1. Power 2-2. Compressor TROUBLE DIAGNOSIS -8 5- Problems Causes Checks Measures Remarks No power on - Power cord cut. - Check the voltage with tester. -Replace the components. outlet. - Faulty connector insertion. - Check visually. -Reconnect the connecting parts. - Faulty connection between plug - Check visually. - Reconnect the conne[...]

2-3. Temperature TROUBLE DIAGNOSIS -8 6- Problems Causes Checks Measures Remarks High Poor cool air circulation due to faulty - Lock –– Check resistance with a - Replace fan motor. temperature fan motor. tester. in the freezer 0 Ω : short. compartment. ∞Ω : cut. - Reconnect and reinsert. - Rotate rotor manually and check rotation. - Wire [...]

2-4. Cooling TROUBLE DIAGNOSIS -8 7- Problems Causes Checks Measures Remarks High Refrigerant leak. Check sequence Weld the leaking part, recharge the 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 compartment (high pressure s[...]

TROUBLE DIAGNOSIS -8 8- Problems Causes Checks Measures Remarks High Cycle pipe is clogged. Check sequence. - Heat up compressor discharging Direr must be replaced. temperature in 1. Check temperature of condenser weld joints with touch, disconnect the freezer manually. the pipes, and check the clogging. compartment. If it is warm, it is OK. Remove[...]

2-5. Defrosting failure TROUBLE DIAGNOSIS -8 9- Problems Causes Checks Measures Remarks No defrosting. Heater does not generate heat as 1. Check the resistance of heater. Heating wire is short and wire is cut. Seal the lead wire with the heating wire is cut or the circuit 0 Ω : Short. ∞Ω : Cut. • Parts replacement: Refer to parts insulation[...]

TROUBLE DIAGNOSIS -9 0- Problems Causes Checks Measures Remarks No defrosting Melting fuse blows out. - Check melting fuse with tester. - Faullty parts: parts replacement. 1) Lead wire is cut. If 0 Ω : OK. - Check wire color when maeasuring 2) Bad soldering. If ∞Ω : wire is cut. resistance with a tester. Ice in the Sucking duct. 1. Check the [...]

2-6. Icing TROUBLE DIAGNOSIS -9 1- Problems Causes Checks Measures Remarks Icing in the 1) Bad circulation of cool air. - Check the food is stored properly - Be acquainted with how to use. - Check the defrost refrigerator - Clogged intake port in the (check discharge and intake port - Sealing on connecting parts. related parts if problem compartmen[...]

TROUBLE DIAGNOSIS -9 2- Problems Causes Checks Measures Remarks Ice in the freezer 1) Bad cooling air circulation. - Check food storage conditions - Be acquainted with how to use. - Check the parts related compartment. - Intake port is colgged in the freezer visually.(Check clogging at intake - Check defrost (Check ice on the to defrosting if the -[...]

2-7. Sound TROUBLE DIAGNOSIS -9 3- Problems Causes Checks Measures Remarks "Whizz" sound 1. Loud sound of compressor 1.1 Check the level of the 1) Maintain horizontal level. operation. refrigerator. 2) Replace rubber and seat if they 1.2 Check the rubber seat are sagged and aged. conditions (sagging and aging). 3) Insert rubber where hand[...]

TROUBLE DIAGNOSIS -9 4- Problems Causes Checks Measures Remarks Vibration sound. 1. Vibration of shelves and foods in 1-1. Remove and replace the 1) Reassemble the vibrating parts ("Cluck") the refrigerator. shelves in the refrigerator and insert foam or cushion where 2. Pipes interference and capillary 1-2. Check light food and container[...]

TROUBLE DIAGNOSIS -9 5- Problems Causes Checks Measures Remarks Sound "Burping" It happens when refrigerant expands - Check the sound of refrigerant at the - Check the restrainer attached on the (almost the same at the end of capillary tube. initial installation. evaporator and capillary tube weld as animals crying - Check the sound when [...]

2-8. Odor TROUBLE DIAGNOSIS -9 6- Problems Causes Checks Measures Remarks 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. wall are stained with food juice. - Store the food in the closed - Check the food in the vinyl wraps. container instead of vinyl [...]

2-9. Micom TROUBLE DIAGNOSIS -9 7- Problems Symptom Causes Checks Measures Remarks Bad PCB All display Bad connection Bad connector Visual check on connector Reconnect electric power. LEDS are off. between Main PCB connection from main connection. connector. and display circuit. PCB to display PCB. Defective PCB trans. PCB Trans winding is Check re[...]

TROUBLE DIAGNOSIS -9 8- Problems Symptom Causes Checks Measures Remarks Bad cooling. Freezer Compressor does Compressor Lead Wire Check compressor Lead Wire Reconnect Lead temperature is not start. is cut. with a tester. Wire. high. Defective compressor Measure voltage at PCB CON1 Replace relay Refer to load driving relay. (5&7) after pressing [...]

TROUBLE DIAGNOSIS -9 9- Problems Symptom Causes Checks Measures Remarks Bad cooling Wrong Defective AC Damper. Check AC damper Check if AC damper motor and Reconnect lead Refrigerator motor and reed switch reed switch lead wire are wire. temperature. and lead wire are cut. cut with a tester. Check AC damper Refer to AC damper in parts Replace AC da[...]

TROUBLE DIAGNOSIS - 100 - 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 CON2 Replace relay Refer to load with a tester after pressing main or PCB. driving condit[...]

TROUBLE DIAGNOSIS - 101 - 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. Door Buzzer Buzzer Defective connecting lead wire from Check lea[...]

3. Cooling Cycle Heavy Repair 3-1. The Heavy Repair Standards for Refrigerator with R134a Refrigerant NOTE) Please contact Songso company on +82-53-554-2067 if you have inquiry on heavy repair special facility . TROUBLE DIAGNOSIS - 102 - NO. Items Unit Standards Purposes Remarks 1 Pipe and piping Min. Pipe:within 1 hour . T o protect The opening ti[...]

3-2. Summary Of Heavy Repair TROUBLE DIAGNOSIS - 103 - Process Contents T ools - 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 , N 2 gas - Confirm N 2 sealing and packing conditions before use. Use good one for weld[...]

3-3. Precautions During Heavy Repair TROUBLE DIAGNOSIS - 104 - 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 of f a refrigerator . refrigerant. (If not, oil will leak inside.) 2) Remove retained refrigerant by cutting first high pr[...]

3-4. Practical Work For Heavy Repair TROUBLE DIAGNOSIS - 105 - Items Precautions 1. Removal of residual refrigerant. 1) Remove residual refrigerant more than 5 minutes later after turning off the refrigerator . ( If not, compressor oil may leak inside.) 2) Remove retained refrigerant slowly by cutting first high pressure side (drier part) with a ni[...]

TROUBLE DIAGNOSIS - 106 - Items Precautions 4.V acuum degassing. Pipe Connection Connect a red hose to the high pressure side and a blue hose to the low pressure side. V acuum Sequence Open  ,  valves and evacuate for 40 minutes. Close valve  . 5.Refrigerant charging. Charging sequence 1) Check the amount of refrigerant supplied to each mo[...]

3-5. Standard Regulations For Heavy Repair TROUBLE DIAGNOSIS - 107 - Items Precautions 4) Refrigerant Charging Charge refrigerant while operating a compressor as shown above. 5) Pinch a charging pipe with a pinch-off 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[...]

3-6. Brazing Reference Drawings PIPE ASSEMBLY JOINT PIPE ASSEMBLY HOT LINE (Refrigerator) PI PE ASSEMBLY HOT LINE (Freezer) PIPE ASSEMBLY JOINT CONDENSER ASSEMBLY W IRE PI PE ASSEMBLY SUCTION DR IER ASSEMBLY CAPI - TUBE Copper Brazer Copper(Silver) Brazer Silver Brazer Copper Brazer Copper Brazer Copper Brazer Coppper Brazer Silver Brazer Silver Br[...]

4. HOW TO DEAL WITH CLAIMS 4-1. Sound TROUBLE DIAGNOSIS - 109 - Problems Checks and Measures "Whizz" 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 a[...]

TROUBLE DIAGNOSIS - 110 - 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" sounds ■ Explain the characteriistics of moving pa[...]

4-2. Measures for Symptoms on T emperature TROUBLE DIAGNOSIS - 111 - 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 set depending on their habit and taste. I[...]

4-3. Odor and Frost TROUBLE DIAGNOSIS - 112 - 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. Deodoriz[...]

4-4. Others TROUBLE DIAGNOSIS - 113 - Problems Checks and Measures The refrigerator 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. Particularly in summer or after i[...]

1. DOOR 1) Remove lower cover and remove clip then disconnect water supply tube in the lower part of freezer door . • Pull a water supply tube  forward while pressing  part to disconnect water supply tube as shown below . 2) Remove a freezer door . (1) Loosen hinge cover screw of freezer door and remove cover . Disconnect all connecting lin[...]

2. HANDLE 1) Aluminum short handle Model (1) Grasp the handle by both hands and hold it upward. 3. SHROUD, GRILLE F AN 1) Loosen screws after disconnecting a cap screw of a grill fan(U) with a blade screwdriver . 2) Disassembly of a grille fan(U) : Pull forward after opening hook at part with a blade screwdriver . 3) Disconnect housing and disassem[...]

- 116 - HOW T O DISASSEMBLE AND ASSEMBLE 5. W A TER V AL VE DISASSEMBL Y METHOD 1) T urn off the power of the refrigerator (pull out the plug). Open the FREEZER and REFRIGERA TOR Door and disassemble the Lower Cover . 2) Lay a dry towel on the floor and get ready to spill water from the water tank. Pull out the Clip. Then press the collet to separa[...]

7. DISPENSER 1) Disconnect funnel assembly by pulling down and forward. 2) Disconnect the cover by pulling it fully to the front and pull up the rear end of the cover slightly to pull it out . 3) Remove a dispenser cover assembly by pulling a low side. It is attached with a hook so be pulled carefully 4) Remove a dispenser cover assembly by pulling[...]

8) Dispenser Related Parts HOW T O DISASSEMBLE AND ASSEMBLE - 118 - 5 6 8 7 13 12 9 11 10 14 17 15 16 26 4 3 2 22 25 24 23 1 18 21 20 19 27 1 COVER ASSEMBL Y , DISPENSER 2 COVER, DISPENSER 3 DECO COVER, DISPLA Y 4 PWB(PCB) ASSEMBL Y , DISPLA Y 5 FRAME FUNNEL, ASSEMBL Y 6 FRAME, FUNNEL 7 LEVER, DISPENSER 8 BUTTON, LEVER 9 SWITCH, MICRO 10 PCB ASSEMB[...]

8. HOME BAR 8-1. Home Bar related parts 8-2. Home Bar parts disassembly and assembly 1) Disassmble H/Bar . Using a flat driver or a pick tool, separate a home bar 2) Assembly H/Bar . First, you insert a right side, and push a home bar hinge on left side( ). HOW T O DISASSEMBLE AND ASSEMBLE - 119 - 3 7 8 6 5 4 5 4 2 1 1 DOOR ASSEMBL Y , H/BAR 5 HING[...]

FREEZER DOOR P AR T : GW -P227 / L227 * : Optional part EXPLODED VIEW - 120 - 210C 210B 210B 202A 200A 201A 203A 611B 600A 606A 612A 614A 610A 205F 205 A 205 C 205 B 205 D[...]

FREEZER DOOR P AR T : GW -C227,/ B227 * : Optional part EXPLODED VIEW - 121 - 210C 210B 210B 210B 210B 202A 200A 201A 203A 501A 279A 279B 207A 205F 205 A 205 C 205 B 205 D[...]

REFRIGERA TOR DOOR P ART : GR-P227 / C227 * : Optional part EXPLODED VIEW - 122 - 264C 264A 264B 241B 241C 241A 617A 240D 232A 260A 147A 231A 233A 230A 266A 267A 267B 263A 263B 265A 239A 402C 251A 261A 147C 240A 243A * * 240B 243A * 240C 243A * 205F 205 A 205 C 205 B 205 D[...]

REFRIGERA TOR DOOR P ART : GW -L227 / B227 * : Optional part EXPLODED VIEW - 123 - 241B 241C 241A 240D 232A 147A 231A 233A 230A 239A 147C 240A * 243A * 240B 243A * 240B * 243A 205F 205 A 205 C 205 B 205 D[...]

FREEZER COMP AR TMENT * : Optional part EXPLODED VIEW - 124 - 125A 125A * 126A 120C * 120B * 120D * 135A 105B 270A 271B 271A 103A 312A 402A 401A 272A 130A 135B 101A 120D * 125A 125A * 126A 120C * 408A 302B 316B 400A 128C 128D 128C * 128D * 128G * 128H * 128G * 128H * 128L * 128M * 128E 128F 131C 131E 131B 131D 154A 131J * 132A 131H 137B 136D 136A 1[...]

REFRIGERA TOR COMP ARTMENT * : Optional part EXPLODED VIEW - 125 - 160A * 166G 161A * 166M 167E * 166E 409B 150B 165A * 165A 166C 166A 166B 167A * 167C 167B 167D 168A * 120E * 504A * 624A * 624A * 624A * 270B 271B 271C 103A 116A 272B 155A * 146B * 626B * 626A * 626C * 101B 151C 150A 624C 401A 146A 402B 152A 162A 162B 177A 177B 151F 115B 115A 142D 1[...]

MACHINE COMP AR TMENT * : Optional part EXPLODED VIEW - 126 - 300A 310B 307A 304A 306A 310A 317B 317A 313A 301A 307A 104A 303C 303B 303A 407B * 500A 502B 502A 308A 308C 308B 309C 403B 309B 309A 505A * 407A * 305C 305B 305C 305B 305A 406A 105C 105D 105E 105F 316A *[...]

DISPENSER P AR T * : Optional part EXPLODED VIEW - 127 - 278A 278F 405A 275A 276A 281B 280A 501A 276B 278B 278C 280B 276B 402D 290A 278J 278H 278G 281A 207B 207A *[...]

P/No. MFL38540601 MAR., 2007 Printed in Poland[...]