LG GN-U192SL Service Manual Download Page 11 | Manualshive

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NOTE :

1. This is a basic diagram and specifications vary in different localities.

5. CIRCUIT DIAGRAM

Non Dispenser Model

Dispenser Model

BN / YL

YL

YL

THERMOSTAT

GY

GY

DEF TIMER

POWER
SUPPLY
CORD

BK

WH

DOOR
S/W-R

FAN
MOTOR

GN / YL

BN

BO

3

1

4

2

BN

PR

WH

RD

LAMP-R

THERMAL
FUSE

RD

P.T.C
STARTER

BL

BL

BL

M

4

2

3

5

6

THE PLUG TYPE,COMPRESSOR EARTH PART ON CIRCUIT DIAGRAM
ARE SUBJECTED TO CHANGE IN DIFFERENT LOCALITIES.

YL :YELLOW

WH:WHITE

BL :BLUE
BK:BLACK

PR :PURPLE
BN:BROWN

GY:GREY RD:RED PK:PINK
BO:BRIGHT ORANGE

BK

BK

COMPRESSOR

BK

M

S

C

GN:GREEN

DEF
THERMO

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Summary of Contents for GN-U192SL

Page 1: ...CAUTION BEFORE SERVICINGTHE UNIT READTHE SAFETY PRECAUTIONS INTHIS MANUAL REFRIGERATOR SERVICE MANUAL http biz lgservice com MODEL GN U192SL SLK SVK GN U212SK SL SLK SV GN U222 U232SK SL SLK SV ...

Page 2: ...ou might hit your head when you stand up 2 To prevent electric shock unplug before servicing 8 When tilting the refrigerator remove any materials on 3 Always check line voltage and amperage the refrigerator especially the thin plates ex Glass 4 If you use any kind of appliance check regular current shelf or books voltage and capacity 9 When servicing the evaporator wear cotton gloves 5 Don t touch...

Page 3: ...on is over add the quantity in grams of R 134ato the refrigeration system Remember that every system has an exact quantity of R 134awith a tolerance of Before performing this operation if the vacuum pump and refilling cylinder are connected make sure that the valve placed between the vacuum pump and the refilling tube are closed in order to keep the Freon for addition to the system Figure 5 In add...

Page 4: ... Starting Type Fin Tube Type Pipe On Sheet Type R134a 105g FREOL α 22G 210cc L CORD PLATE HEATER VITAMIN KIT 1EA OPTIONAL ITEMS SPECIFICATIONS FREEZER 51 NET CAPACITY REFRIGERATOR TOTAL 149 DIMENSIONS mm 535 W X 585 D X 1260 H NET WEIGHT kg 42 COOLING SYSTEM a F n Cooling TEMPERATURECONTROL Full Automatic DEFROSTINGSYSTEM Heater Defrost With a Timer OUT CASE INNERCASE A B S INSULATION t Polyure ha...

Page 5: ...ATIONS FREEZER REFRIGERATOR VEGETABLE TRAY ICE MAKER TWIST ICE TRAY ICE TRAY COMPRESSOR EVAPORATOR CONDENSER REFRIGERANT LUBRICATING OIL DEFROSTING DEVICE SHELF OPTIONAL a F n Cooling Knob Heater Defrost A B S Coated Steel Sheet 1 EA 2 EA Drawer Type DEODORIZER 1EA TWIST ICE TRAY ICE BANK ICE TRAY ICE BANK DEODORIZER 1EA COVER LOWER 1EA P T C Starting Type Fin Tube Type Pipe On Sheet Type R134a 10...

Page 6: ...rator Temperature Control Knob Lamp Cover Lower Deodorizer Chilled Compartment FREEZER COMPARTMENT REFRIGERATOR COMPARTMENT Vegetable Drawer Used to keep fruits and vegetables etc fresh and crisper Shelves All parts shown may not be included with every model Cover Pump Movable Rack Egg Storage Rack Freezer Door Rack Water Tank Refrigerator Door Rack Laveling Screws Vitamin Kit Optional part ...

Page 7: ...Disconnect the lead wire 3 2 DOOR SWITCH 3 1 DOOR Freezer Door Separating the Hinge Upper Open the freezer door and remove the Hinge Upper 2 By unscrewing 2 screws 1 In this case be careful not To drop the freezer door Figure 6 Separating the Freezer Door 2 Refrigerator Door 1 Loosen hexagonal bolts fixing the Lower Hinge to the 2 Pull out the door gasket to remove from the door foam Ass y 7 1 Ope...

Page 8: ...tor connected with the Def Control Assy and replace the Def Control Assy after cutting the Tie Wrap and removing the Holder Fuse Figure 14 3 6 REFRIGERATOR ROOM LAMP 1 Remove the cover lamp R by pulling with a _ type driver 2 Remove the lamp R by turning 3 7 CONTROL BOX R 1 Remove the Cover Lamp R 2 Loosen 2 screws 3 Full the Control Box R 4 Separate the lead wire Housing 8 SHROUD F BRACKET FAN MO...

Page 9: ... For normal operation of single phase induction motor in the starting operation flows in both main coil and sub coil After the starting is over the current is cut off in subcoil The proper features of PTC play the above all roles So PTC is used as a starting device of motor 4 2 3 PTC Applied Circuit Diagram According to Starting Method of Motor 4 2 4 Motor Restarting and PTC Cooling 1 For restarti...

Page 10: ...eater inside the OLP and the OLP protects Motor by cutting off current which flows to the Compressor Motor 4 3 2 Role of the OLP 1 The OLP is attached to the Hermetic Compressor used for the Refrigerator and Show Case and prevents the Motor Coil from being started in the Compressor 2 Do not turn the Adjust Screw of the OLP in any way for normal operation of the OLP Composition and connection Diagr...

Page 11: ...POWER SUPPLY CORD BK WH DOOR S W R FAN MOTOR GN YL BN BO 3 1 4 2 BN PR WH RD LAMP R THERMAL FUSE RD P T C STARTER BL BL BL M 4 2 3 5 6 THE PLUG TYPE COMPRESSOR EARTH PART ON CIRCUIT DIAGRAM ARE SUBJECTED TO CHANGE IN DIFFERENT LOCALITIES YL YELLOW WH WHITE BL BLUE BK BLACK PR PURPLE BN BROWN GY GREY RD RED PK PINK BO BRIGHT ORANGE BK BK COMPRESSOR BK M S C GN GREEN DEF THERMO ...

Page 12: ...Replace Compressor OLP works within 30 sec in forcible OLP operation by turning instant power on and off Applied voltage isn t in the range of Rating Check the resistance among M C S C and M S in Motor Compressor Check the resistance of two terminals in PTC Starter Check if applying a regular OLP Measure minimum starting voltage after 5 min for balancing cycle pressure and cooling the PTC Check th...

Page 13: ......

Page 14: ...ssor Replace each component Raise the voltage Replace each component Cause Check if current flows to starting devices Check current flowing in sub coil of Compressor Check capacity of OLP The items described above are normal Cooling ability is poor Fan motor doesn t run Much frost are sticked to the EVAPORATOR Poor contacting Coil is shorted Shorted Replace each component Replace each component Re...

Page 15: ...he TEMP CONTROL to 3 6 is set to 1 2 Food in the Are food placed in cooling air outlet Place food in high temperature section Refrigerator Front Part are frozen Check if the TEMP CONTROL is set to MAX Set the knob to MID Dew or ice Are watery food kept Seal up watery food with vinyl wrap forms in the Check if putting in hot food Put in food after getting cold chamber of Did you open the door of th...

Page 16: ...ure Normal cooling is possible don t get cold formed when injecting Refrigerant at all of regular amount PARTIAL Freeze room and Flowing sound of Refrigerant A little high Normal discharging of CLOG Refrigerator is heard and frost forms more than refrigerant don t get cold in inlet only ambient The capillary tube is faulty normally temperature WHOLE Freezer and Flowing sound of Refrigerant Equal t...

Page 17: ...nt mixing Do not mix with R 12 refrigerant To remove the moisture from pipe inside Defect refrigerant leak area The opening time should be reduced to a half of the standards during rain and rainy seasons the penetration of water into the pipe is dangerous Refer to repair note in each part R 134a refrigerant is more susceptible to leaks than R 12 and requires more care during welding Do not apply f...

Page 18: ...0E 120G 120B 110A 120A 283B 106A 129A 406B 409B 103C 120C 604F 604E NOTE 1 The parts of refrigerator and the shape of each part are subject to change in different localities optional parts Twist Ice Tray 110B 125A 125H 131A General Ice Tray 125A 131A Dispenser Set Asm 611A 611M 611N 611P T 7 1 CASE SET ASM GN U192 GN U212 GN U222 GN U232 313A 315A ...

Page 19: ...SM GN U192 GN U212 GN U222 GN U232 optional parts 205A 405C 404A 330B 332A 110B 149A 125A 131A 125H 149B 140A 149C 149C 154A 151A 405A 329A 203A 200A 241D 241C 241B 233A 230A 125A 131A 605A 241F 201A 210A 212G 231A 281D ...

Page 20: ...P No 3828JP8007D ...

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