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Bedienungsanleitung LG Electronics GR-P227/L227

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  • LG Electronics GR-P227/L227 - page 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 GR-P2 5 7/L2 5 7 ...

  • LG Electronics GR-P227/L227 - page 2

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

  • LG Electronics GR-P227/L227 - page 3

    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 ...

  • LG Electronics GR-P227/L227 - page 4

    SPECIFICA TIONS - 4 - ITEMS SPECIFICA TIONS DIMENSIONS (mm) 894(W) X 790(D) X 1753(H) NET WEIGHT (kg) 132 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 CONDENSER Wire Condenser REFRIGERANT R134a ( ...

  • LG Electronics GR-P227/L227 - page 5

    SPECIFICA TIONS - 5 - ITEMS SPECIFICA TIONS DIMENSIONS (mm) 894(W) X 790(D) X 1753(H) NET WEIGHT (kg) 132 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 CONDENSER Wire Condenser REFRIGERANT R134a ( ...

  • LG Electronics GR-P227/L227 - page 6

    SPECIFICA TIONS - 4 - ITEMS SPECIFICA TIONS DIMENSIONS (mm) 894(W) X 875 (D) X 1753(H) NET WEIGHT (kg) 132 COOLING SYSTEM Fan Cooling TEMPERA TURE CONTROL Micom Control DEFROSTING SYSTEM Full Automatic Heater Defrost INSULA TION Cyclo-Pentane COMPRESSOR P .T .C. Starting Type EV APORA TOR Fin T ube T ype CONDENSER Wire Condenser REFRIGERANT R134a ( ...

  • LG Electronics GR-P227/L227 - page 7

    SPECIFICA TIONS - 5 - ITEMS SPECIFICA TIONS DIMENSIONS (mm) 894(W) X 875 (D) X 1753(H) NET WEIGHT (kg) 132 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 CONDENSER Wire Condenser REFRIGERANT R134a ...

  • LG Electronics GR-P227/L227 - page 8

    P ARTS IDENTIFICA TION - 6 - Freezer compartment Refrigerator compartment Automatic Icemaker Lamp Shelf Shelf Door rack Drawer Drawer Door 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 ...

  • LG Electronics GR-P227/L227 - page 9

    2. Ref No. : GR-P227/GR-P257 (EXTERNAL FI L TER) P ARTS IDENTIFICA TION - 7 - Freezer compartment Refrigerator compartment Automatic Icemaker Lamp Shelf Shelf Door rack Drawer Drawer Door rack Lower cover Milk product corner Lamp Shelf Refreshment center (Optional) Can Server (Optional) Shelf (Folding or Normal) Wine holder (Plastic or wire) Egg Bo ...

  • LG Electronics GR-P227/L227 - page 10

    P ARTS IDENTIFICA TION - 8 - Freezer compartment Refrigerator compartment Automatic Icemaker Lamp Shelf Shelf Door rack Drawer Drawer Door 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 ...

  • LG Electronics GR-P227/L227 - page 11

    4. Ref No. : GR-P227/GR-P257 (EXTERNAL FI L TER) P ARTS IDENTIFICA TION - 9 - Freezer compartment Refrigerator compartment Automatic Icemaker Lamp Shelf Shelf Door rack Drawer Drawer Door rack Lower cover Milk product corner Lamp Shelf Refreshment center (Optional) Can Server (Optional) Shelf (Folding or Normal) Wine holder (Plastic or wire) Egg Bo ...

  • LG Electronics GR-P227/L227 - page 12

    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 ...

  • LG Electronics GR-P227/L227 - page 13

    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 ...

  • LG Electronics GR-P227/L227 - page 14

    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 ...

  • LG Electronics GR-P227/L227 - page 15

    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 ...

  • LG Electronics GR-P227/L227 - page 16

    ■ 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 ...

  • LG Electronics GR-P227/L227 - page 17

    3. How to Control the Amount of W ater Supplied to Icemaker . 3-1. Confirm the amount of water supplied to the icemaker . 1) The automatic icemaker can automatically make 6 cubes at a time, 70~120 pieces per day . This quantity may vary by circumstance, including ambient temperature, door opening, freezer load. etc. 2) Icemaking stops when the ice ...

  • LG Electronics GR-P227/L227 - page 18

    1. Monitor Panel 1-1. GR-P227/GR-P257 1-2. Display Second Function 1. Door Alarm Buzzer Mute Mode Press ALARM/LOCK to turn the buzzer on or off. 2. Display Power saving Mode It places display in standby mode until door is opened. Press FREEZER and EXPRESS FRZ. buttons simultaneously to turn all LEDs ON and then OFF with the recognition sound of Din ...

  • LG Electronics GR-P227/L227 - page 19

    Once the mode activates, the display is always OFF . Until door is opened or display button is pressed. When 20 seconds has elapsed after closing door or pressing button, the display turns OFF . T o deactivate this mode is same as the activation methods. The mode inactivates when resetting the power . 3. Exhibition Mode Demo mode is available for d ...

  • LG Electronics GR-P227/L227 - page 20

    2-1-2. LCD Back Light Control 1. In order to easily view display status on the LCD, LCD Back Light is turned on for a minute in application of initial power , for a minute in button manipulation and for a minute after closing time from opening time of door . 2. If pressing any display button once with the backlight turned off, buzzer rings and butt ...

  • LG Electronics GR-P227/L227 - page 21

    2-2. Dispenser use selection Y ou can select water or ice. ❉ Please select water , slice ice and square ice by pressing button as you desire. ❉ Please press the push button lightly by catching and pushing in cup. • The border line is indicated for the selected function. • “T ak!” sounds if 5 seconds pass after ice comes out. It is sound ...

  • LG Electronics GR-P227/L227 - page 22

    2-7. Super freezing 1. EXPRESS FRZ freezing is a function to increase the cooling speed of the freezer compartment by running both the compressor and the fan simultaneously . 2.EXPRESS FRZ is cancelled and the refrigerator returns to its default setting in the event of a power interruption. 3. SelectingEXPRESS FRZ changes only the speed of the cool ...

  • LG Electronics GR-P227/L227 - page 23

    - 21 - 2-10. Control of M/C room fan motor 1. The M/C room fan motor performs ON/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). 2-1 1. Door opening alarm 1. Buzzer gen ...

  • LG Electronics GR-P227/L227 - page 24

    2-15. Sequential operation of built-in product Built-in products such as compressor , frost removal heater , freezing room fan, Cooling Fan and step motor damper are sequentially operated as follows for preventing noise and part damage occurred due to simultaneous operation of a lot of parts in applying initial power and completing test. MICOM FUNC ...

  • LG Electronics GR-P227/L227 - page 25

    2-16. Failure Diagnosis Function 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. 3. If nonconforming matters occurred are released during display of failur ...

  • LG Electronics GR-P227/L227 - page 26

    2-17. 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 and then is reset to the normal status. ...

  • LG Electronics GR-P227/L227 - page 27

    ✻ LCD check function: If simultaneously pressing super freezer button and freezing temperature adjustment button for a second, a back light is turned on and all display LCD graphics on. If releasing the button, the LCD graphic displays the previous status, the back light is turned off (LCD graphic and back light ON/OFF check). 2-18. Function of d ...

  • LG Electronics GR-P227/L227 - page 28

    1. Explanation for PWB circuit 1-1. Power circuit The power circuit includes a Switched Mode Power Supply (SMPS). It consists of a rectifier (BD1 and CE1) converting AC to DC, a switch (IC2) switching the DC voltage, a transformer , and a feedback circuit (IC3 and IC4). Caution : Since high voltage (310 Vdc) is maintained at the power terminal, wai ...

  • LG Electronics GR-P227/L227 - page 29

    1-2. Oscillation circuit The oscillation circuit generates a basic clock signal for synchronization and time calculation related to the transmission of data and calculations made by the MICOM (IC1). The oscillator (OSC1) must always be replaced with an exact replacement part. If this specification is changed, the change will affect the time calcula ...

  • LG Electronics GR-P227/L227 - page 30

    1-4. Load/dispenser operation, door opening circuit 1. LOAD DRIVING CIRCUIT ✽ The fan operates at the regular speed even if the door of the refrigerator or freezer is opened. When the doors are closed, the fan reverts to its original speed. ✽ (A), (B), (C), and (D) of door switch for the freezer or refrigerator are connected to the door open se ...

  • LG Electronics GR-P227/L227 - page 31

    1-5. Dispenser operation circuit (1) GR-P227/L227/P257/L257 1) Check load driving status 2) Lever Switch sensing circuit EXPLA TION FOR MICOM CIRCUIT - 29 - Measuring part Lever S/W IC1(Micom) (No. 16) On OFF 5V 0 V (60 Hz) 5 V Measuring part IC7-15 IC7-14 IC7-13 IC7-12 IC7-1 1 Status ON Within 1 V OFF 12 V T ype of Load GEARED MOTOR SOLENOID CUBE ...

  • LG Electronics GR-P227/L227 - page 32

    1-6. Door opening sensing circuit (1) GR-P227/L227/P257/L257 ✽ Since door switches (A) and (B) are interconnected, if either fails, the other will not respond properly . ✽ If either switch fails, the light will not come on. EXPLA TION FOR MICOM CIRCUIT - 30 - Closing 5 V ( A - B , C - D . Switch at both ends are at Off status) Opening 0 V ( A - ...

  • LG Electronics GR-P227/L227 - page 33

    1-7. T emperature sensing circuit (1) GR-P227/L227/P257/L257 The circuits involving the freezer and refrigerator sensors control the temperature in both the freezer and the refrigerator . The icemaker sensor detects when ice is made. The defrost sensor determines both the need for defrosting and the efficiency of the defrost operation. See the tabl ...

  • LG Electronics GR-P227/L227 - page 34

    1-8. Switch entry circuit The following circuits are sensing signal form the damper motor reed switch for testing and diagnosing the refrigerator . (1) GR-P227/L227/P257/L257 1-9. Option designation circuit (model separation function) (1) GR-P227/L227/P257/L257 The circuits shown above vary according to which features are included on your particula ...

  • LG Electronics GR-P227/L227 - page 35

    1-10. Stepping motor operation circuit (1) GR-P227/L227/P257/L257 The motor is driven by magnetism formed in the areas of the coils and the stator . Rotation begins when a HIGH signal is applied to MICOM Pin 33 of IC10 (T A7774F). This causes an output of HIGH and LOW signals on MICOM pins 34 and 35. Explanation) The stepping motor is driven by sen ...

  • LG Electronics GR-P227/L227 - page 36

    1-1 1. Fan motor driving circuit (freezer , mechanical area) 1. The circuit cuts all power to the fan drive IC, resulting in a standby mode. 2. This 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. ...

  • LG Electronics GR-P227/L227 - page 37

    1-12. T emperature compensation and temperature compensation circuit 1. T emperature compensation in freezer and refrigerator (1) GR-P227/L227/P257/L257 u T emperature compensation table by adjustment value (difference value against current temperature) Ex) If you change compensation resistance at a refrigerator (RCR1) from 10 k Ω (current resist ...

  • LG Electronics GR-P227/L227 - page 38

    u T emperature compensation table at the refrigerator is as follows: u T emperature compensation at the freezer is performed the same as at the refrigerator . The value for the freezer is twice that of the refrigerator . u This circuit enters the necessary level of temperature compensation for adjusting the appliance. The method is the same for eve ...

  • LG Electronics GR-P227/L227 - page 39

    2. Compensation circuit for temperature at freezer (1) GR-P227/L227/P257/L257 u This circuit allows adjustment of the set temperature for compensation by changing jumpers at locations JCR1~JCR4. EXPLA TION FOR MICOM CIRCUIT - 37 - Compensation Compensation for too warm for too cold T emperature compensation value Remarks JCR3 JCR4 JCR1 JCR2 at refr ...

  • LG Electronics GR-P227/L227 - page 40

    1-13. Communication circuit and connection L/Wire between main PCB and display PCB The following communication circuit is used for exchanging information between the main MICOM of the Main PCB and the dedicated MICOM of the LED (LCD) Display PCB. A bi-directional lead wire assembly between the two boards is required for the display to function prop ...

  • LG Electronics GR-P227/L227 - page 41

    2) Sensor resistance characteristics table u Resistance value allowance of sensor is ± 5%. u When measuring the resistance value of the sensor , allow the temperature of that sensor to stabilize for at least 3 minutes before measuring. This delay is necessary because of the sense speed relationship. u Use a digital tester to measure the resistance ...

  • LG Electronics GR-P227/L227 - page 42

    1-14. Miracle 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. - 40 - EXPLA TION FOR MICOM CIRCUIT ...

  • LG Electronics GR-P227/L227 - page 43

    1. Operation Principle 1-1. Operation Principle of Icemaker 1. T urning the Icemaker switch off (O) stops the ice making function. 2. Setting the Icemaker switch to OFF and then turning it back on will reset the icemaker control. Start Position Power On Start Position Icemaking Mode Harvest Mode Park Position Fill Test Mode Ice Making Mode Water am ...

  • LG Electronics GR-P227/L227 - page 44

    2. ICEMAKER FUNCTIONS 2-1. Start Position 1. After POWER OFF or power outage, check the EJECTOR's position with MICOM initialization to restart. 2. How to check if it is in place: - Check HIGH/LOW signals from HALL SENSOR in MICOM PIN. 3. Control Method to check if it is in place: (1) EJECT OR is in place, - It is an initialized control, so th ...

  • LG Electronics GR-P227/L227 - page 45

    2-5. Function TEST 1. This is a forced operation for TEST , Service, cleaning, etc. It is operated by pressing and holding the W ater amount selection button for 3 seconds. 2. The test works only in the Icemaking Mode. It cannot be entered from the Harvest or Fill mode. (If there is an ERROR, it can only be checked in the TEST mode.) 3. Caution! If ...

  • LG Electronics GR-P227/L227 - page 46

    (1) GR-P227/L227/P257/L257GR-P227/L227/P257/L257 CIRCUIT - 44 - ...

  • LG Electronics GR-P227/L227 - page 47

    1. T rouble Shooting TROUBLE DIAGNOSIS - 45 - 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 movem ...

  • LG Electronics GR-P227/L227 - page 48

    TROUBLE DIAGNOSIS - 46 - 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 ...

  • LG Electronics GR-P227/L227 - page 49

    TROUBLE DIAGNOSIS - 47 - 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 ...

  • LG Electronics GR-P227/L227 - page 50

    - 48 - 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 ...

  • LG Electronics GR-P227/L227 - page 51

    TROUBLE DIAGNOSIS - 49 - 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 . ...

  • LG Electronics GR-P227/L227 - page 52

    TROUBLE DIAGNOSIS - 50 - 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 ...

  • LG Electronics GR-P227/L227 - page 53

    TROUBLE DIAGNOSIS - 51 - 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 ...

  • LG Electronics GR-P227/L227 - page 54

    TROUBLE DIAGNOSIS - 52 - 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 ...

  • LG Electronics GR-P227/L227 - page 55

    TROUBLE DIAGNOSIS - 53 - 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. ...

  • LG Electronics GR-P227/L227 - page 56

    TROUBLE DIAGNOSIS - 54 - 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 ...

  • LG Electronics GR-P227/L227 - page 57

    2. Faults 2-1. Power 2-2. Compressor TROUBLE DIAGNOSIS -5 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 ...

  • LG Electronics GR-P227/L227 - page 58

    2-3. Temperature TROUBLE DIAGNOSIS -5 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 ...

  • LG Electronics GR-P227/L227 - page 59

    2-4. Cooling TROUBLE DIAGNOSIS -5 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 ...

  • LG Electronics GR-P227/L227 - page 60

    TROUBLE DIAGNOSIS -5 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 ...

  • LG Electronics GR-P227/L227 - page 61

    2-5. Defrosting failure TROUBLE DIAGNOSIS -5 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 ...

  • LG Electronics GR-P227/L227 - page 62

    TROUBLE DIAGNOSIS -6 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 ...

  • LG Electronics GR-P227/L227 - page 63

    2-6. Icing TROUBLE DIAGNOSIS -6 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 ...

  • LG Electronics GR-P227/L227 - page 64

    TROUBLE DIAGNOSIS -6 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 - ...

  • LG Electronics GR-P227/L227 - page 65

    2-7. Sound TROUBLE DIAGNOSIS -6 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 ...

  • LG Electronics GR-P227/L227 - page 66

    TROUBLE DIAGNOSIS -6 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 ...

  • LG Electronics GR-P227/L227 - page 67

    TROUBLE DIAGNOSIS -6 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 ...

  • LG Electronics GR-P227/L227 - page 68

    2-8. Odor TROUBLE DIAGNOSIS -6 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 ...

  • LG Electronics GR-P227/L227 - page 69

    2-9. Micom TROUBLE DIAGNOSIS -6 7- Problems Symptom Causes Checks Measures Remarks Bad PCB All display Bad connection Bad connector Visual check on connector Reconnect electric power. LCD 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 res ...

  • LG Electronics GR-P227/L227 - page 70

    TROUBLE DIAGNOSIS -6 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 CON2 Replace relay(RY1 Refer to load driving relay. (3&9) after press ...

  • LG Electronics GR-P227/L227 - page 71

    TROUBLE DIAGNOSIS -6 9- Problems Symptom Causes Checks Measures Remarks Bad cooling Wrong Defective Step Motor Check Step Motor Check if Step Motor damper Reconnect lead Refrigerator Damper. damper motor and motor and reed switch lead wire. temperature. reed switch and lead wire are cut with a tester. wire are cut. Check Refer to Step Motor damper ...

  • LG Electronics GR-P227/L227 - page 72

    TROUBLE DIAGNOSIS -7 0- 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 (1 and 7) Replace relay (RY 7 Refer to load with a tester after pressing main and RY 3 ...

  • LG Electronics GR-P227/L227 - page 73

    TROUBLE DIAGNOSIS -7 1- 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 lead ...

  • LG Electronics GR-P227/L227 - page 74

    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 - 72 - NO. Items Unit Standards Purposes Remarks 1 Pipe and piping Min. Pipe:within 1 hour . T o protect The opening tim ...

  • LG Electronics GR-P227/L227 - page 75

    3-2. Summary Of Heavy Repair TROUBLE DIAGNOSIS - 73 - 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 weldi ...

  • LG Electronics GR-P227/L227 - page 76

    3-3. Precautions During Heavy Repair TROUBLE DIAGNOSIS - 74 - Items Precautions 1. Use of tools. 1) Use special parts and tools for R134a. 2. Removal of retained 1) Remove retained refrigerant more than 5 minutes after turning off a refrigerator . refrigerant. (If not, oil will leak inside.) 2) Remove retained refrigerant by cutting first high pres ...

  • LG Electronics GR-P227/L227 - page 77

    3-4. Practical Work For Heavy Repair TROUBLE DIAGNOSIS - 75 - 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 nip ...

  • LG Electronics GR-P227/L227 - page 78

    TROUBLE DIAGNOSIS - 76 - 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 mod ...

  • LG Electronics GR-P227/L227 - page 79

    3-5. Standard Regulations For Heavy Repair TROUBLE DIAGNOSIS - 77 - 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 ...

  • LG Electronics GR-P227/L227 - page 80

    3-6. Brazing Reference Drawings TROUBLE DIAGNOSIS - 78 - PIPE ASSEMBLY JOINT PIPE ASSEMBLY HOT LINE (Refrigerator) 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 Si ...

  • LG Electronics GR-P227/L227 - page 81

    4. HOW TO DEAL WITH CLAIMS 4-1. Sound TROUBLE DIAGNOSIS - 79 - 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 an ...

  • LG Electronics GR-P227/L227 - page 82

    TROUBLE DIAGNOSIS - 80 - 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 par ...

  • LG Electronics GR-P227/L227 - page 83

    4-2. Measures for Symptoms on T emperature TROUBLE DIAGNOSIS - 81 - 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. If ...

  • LG Electronics GR-P227/L227 - page 84

    4-3. Odor and Frost TROUBLE DIAGNOSIS - 82 - 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. Deodorize ...

  • LG Electronics GR-P227/L227 - page 85

    4-5. Others TROUBLE DIAGNOSIS - 83 - 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 in ...

  • LG Electronics GR-P227/L227 - page 86

    1. DOOR 1) Remove lower cover and 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 lines except ea ...

  • LG Electronics GR-P227/L227 - page 87

    2. HANDLE 1) Put blade screwdriver into a groove on the side of a Deco handle and lift up a little bit in arrow  direction and push up with hand in arrow  direction and disconnect. 2) Put blade screwdriver into a groove on the side of a DECO handle and lift up in arrow direction  and push down with hand in arrow direction  and disconnec ...

  • LG Electronics GR-P227/L227 - page 88

    HOW T O DISASSEMBLE AND ASSEMBLE - 86 - 4. 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 separat ...

  • LG Electronics GR-P227/L227 - page 89

    HOW T O DISASSEMBLE AND ASSEMBLE - 87 - 6. DISPENSER 1) Disconnect funnel and button assembly by pulling down and forward. 2) Remove display frame assembly by making a gap between a display frame assembly and door with a flat blade screwdriver and pulling it forward. The cover dispenser is attached with a hook. 3) The display assembly can be connec ...

  • LG Electronics GR-P227/L227 - page 90

    HOW T O DISASSEMBLE AND ASSEMBLE - 88 - 7) Dispenser Related Parts 18 21 20 19 7 8 14 17 15 9 10 16 1 2 22 13 12 3 4 1 FRAME ASSEMBL Y , DISPLA Y 2 COVER, DISPENSER 3 DECO, FRAME DISPLA Y 4 PWB(PCB) ASSEMBL Y , DISPLA Y 7 FUNNEL ASSEMBL Y 8 MICRO SWITCH 9 FRAME, FUNNEL 10 LEVER(SWITCH) 1 1 FUNNEL 12 BUTTON LEVER 13 HOLLDER BUTTON 14 SOLENOID ASSEMB ...

  • LG Electronics GR-P227/L227 - page 91

    FREEZER DOOR P A R T : GR-P227/L227/P257/L257 EXPLODED VIEW - 89 - 210 B 210B 210B 202A 200A 201A 203A 611B 600A 606A 612A 614A 610A #EV# 205A ...

  • LG Electronics GR-P227/L227 - page 92

    Ref No. : GR-P227 /GR-P257 REFRIGERA TOR DOOR P ART * : Optional part EXPLODED VIEW - 90 - 240B 232A 264C 264A 264B 240A 233A 230A 231A 2 12G 243A 241B 241C 241A 243A 617A 250A 260A 240E 240D 240C #EV# 205A ...

  • LG Electronics GR-P227/L227 - page 93

    Ref No. : GR-L227 /GR-L257 REFRIGERA TOR DOOR P ART * : Optional part EXPLODED VIEW - 91 - 240A 232A 240A 233A 230A 239A 243A 241B 241C 241A 205F 205B 205E 205A 205C 205D 243A 240E 240D 240C 231A #EV# ...

  • LG Electronics GR-P227/L227 - page 94

    FREEZER COMP AR TMENT * : Optional part EXPLODED VIEW - 92 - 408A 302B 400A 270A 271B 271A 103A 312A 402A 152A 128E 128F 105B 272A 623B 621B 621A 135B 128C 128D 128C 128D 137B 136D 136A 135A 136B 403A 136C 401A 137A 130A 125A 126A 120 C 120 B 120 B 120 D 125A 101B #EV# ...

  • LG Electronics GR-P227/L227 - page 95

    REFRIGERA TOR COMP ARTMENT * : Optional part 409B 167A 167C 167B 167D 168A 120E 504A 165 A 165A 166C 166A 166B 624A 624A * 624A * 270B 625A 271B 271C 103A 116A 272B 151A * 626B * 626A * 626C * 101A 151B * 151C 150A 624C 401A 146A 402A 152A 162A 162B 177A 177B 115A 149E 140A 140A 165 A 165A 166C 166A 166B 140A EXPLODED VIEW - 93 - #EV# 150B 115 C 11 ...

  • LG Electronics GR-P227/L227 - page 96

    MACHINE COMP AR TMENT * : Optional part EXPLODED VIEW - 94 - 300A 310B 307A 304A 306A 310A 317B 317A 313A 301A 307A 104A 303C 303B 303A 410G 410H * 500A 502B 502A 308A 308C 308B 309B 403B 309C 309A 305C 305B 305C 305B 305A 406A 316A * #EV# ...

  • LG Electronics GR-P227/L227 - page 97

    ICE & W A TER P AR T * : Optional part EXPLODED VIEW - 98 - 404A 620A 620B 625A * 616G * 619A * 616F * 627A * 624B 619A * 404B 621B 601A 605A 602A 607A 600A * 603A 603B 604A ...

  • LG Electronics GR-P227/L227 - page 98

    DISPENSER P AR T * : Optional part EXPLODED VIEW - 95 - 278A 402C 405A 275A 276A 278B 278C 276B 279A 279B 281A 280C 280B 280A 501A 278D #EV# ...

  • LG Electronics GR-P227/L227 - page 99

    P/No. 3828JD8999A FEB., 2006 Printed in Korea ...

Produzent LG Electronics Kategorie Refrigerator

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