background image

SAFETY PRECAUTIONS    .................................................................................................................................................... 2

SERVICING PRECAUTIONS   ............................................................................................................................................... 3

SPECIFICATIONS   ................................................................................................................................................................ 4

PARTS IDENTIFICATION    .................................................................................................................................................... 4

DISASSEMBLY   .................................................................................................................................................................... 5

DOOR   ................................................................................................................................................................................ 5

THERMOSTAT    .................................................................................................................................................................. 5

COMPRESSOR AND PTC    ................................................................................................................................................ 5

CIRCUIT DIAGRAM   ............................................................................................................................................................. 6

TROUBLESHOOTING   .................................................................................................................................................... 7-10

NO COOLING   .................................................................................................................................................................... 8

COMPRESSOR AND ANOTHER ELECTRIC COMPONENTS    ........................................................................................ 9

PTC    ................................................................................................................................................................................. 10

EXPLODED VIEW    ........................................................................................................................................................ 11-12

REPLACEMENT PARTS LIST    ......................................................................................................................................... 13-

CONTENTS

Please read the following instructions before servicing your
refrigerator.

1. Check the refrigerator for current leakage.

2. To prevent electric shock, unplug before servicing.

3. Always check line voltage and amperage.

4. If you use any kind of appliance, check regular current,

voltage and capacity.

5. Don't touch metal products in the freezer with wet

hands. This may cause frostbite.

6. Prevent water from following onto electric elements in

the mechanical parts.

7. Close the top door before opening the bottom door.

Otherwise, you might hit your head when you stand up.

8. When tilting the refrigerator, remove any materials on

the refrigerator, especially the thin plates(ex. Glass
shelf or books.)

9. When servicing the evaporator, wear cotton gloves.

This is to prevent injuries from the sharp evaporator
fins.

10. Leave the disassembly of the refrigerating cycle to a

specialized service center. The gas inside the circuit
may pollute the  environment.

SAFETY PRECAUTIONS

- 2 -

Summary of Contents for GC-051

Page 1: ...CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL MODEL GC 151 REFRIGERATOR SERVICE MANUAL http biz lgservice com ...

Page 2: ... any kind of appliance check regular current voltage and capacity 5 Don t touch metal products in the freezer with wet hands This may cause frostbite 6 Prevent water from following onto electric elements in the mechanical parts 7 Close the top door before opening the bottom door Otherwise you might hit your head when you stand up 8 When tilting the refrigerator remove any materials on the refriger...

Page 3: ...is over add the quantity in grams of R 134a to the refrigeration system Remember that every system has an exact quantity of R 134a with a tolerance of 5 grams that can be added Figure 4 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 addi...

Page 4: ...del The shape of refrigerator is subject to change THERMOSTAT Regulates the operation of the motor and controlls the temperature inside the refrigerator SUPPORTER CAN Keeps any kinds of bottles MAGNETIC GASKET Tight fitting door seal keeps all the cooling power locked inside No hooks or latches ITEMS SPECIFICATIONS DOOR TYPE 1 DOOR CONDENSER TYPE WALL CONDENSER FLUSH BACK DEFROSTING SYSTEM MANUAL ...

Page 5: ... by loosening 4 bolts fixed to base plate of the set Figure 11 5 Remove the Compressor by loosening 2 earth screws next to Compressor NOTE Replace the Compressor after peeling off painted part of earth terminal Compressor inhales the gas evaporated from Evaporator and condenses this gas and then delivers to Condenser PTC is abbreviation of Positive Temperature Coefficient and is attatched to the C...

Page 6: ...4 CIRCUIT DIAGRAM 6 NOTE Lamp is option part ...

Page 7: ...igerant system a quantity of R12 is introduced which is greater than that indicated the excess gas dose not terminate its expansion in the evaporator but proceeds into the return tube The refrigerant system is humid when there is a small percentage of water present which not completely retained by the dehydrator filter enters into circulation with the Freon and freezes at the capillary exit in the...

Page 8: ...ents normal Check if the current flowing of the sub coil of the Compressor Frost doesn t form at the Evaporator when operating set for more than 30 min Check if the current flows at the main coil of the Comprossor Poor contacting point Coil shorted Low voltage Shorted Poor contacting point and broken The coil of the Compressor Motor is worn out Refrigerant leaks Poor compressing Increase the volta...

Page 9: ...ace the PTC STARTER Starts at the voltage of 85 below Replace the PTC Check the starting state at the regular voltage above Replace OLP Normal Normal OLP works within 30 sec in forcible OLP operation by turning instant power on and off The applied voltage is not in the range of Rating Voltage 10 Test the resistance among M C S C and M S Test the resistance of the both terminals in the PTC STARTER ...

Page 10: ... with a multitester or Wheatstone Bridge Separate the OLP from the Compressor and check resistance value between two terminals of OLP with Tester The value is in the range of 15 28 for the 22Ω PTC Check another electric components Replace OLP The value is 0 The value is Normal Check another electric components Replace the PTC Replace the PTC Abnormal Abnormal ...

Page 11: ... change in different localities 2 optional parts GC 151S GLASS COVER T V 149B STELL COVER T V 136C 149A LAMP 406B 408B 409B 6 EXPLODED VIEW 11 411A 317A 310A 309A 308A 307A 312A 315A 127A 281B 302A 104A 283A 318A 313A 416A 410A 410G 328A 328B ...

Page 12: ... optional parts GC 151S 12 151A 125A 149B 207A 201A 406B 126A 136A 136A 136C 281D 110B 110C 409B 110A 408B 149A 110F ...

Page 13: ...A2021C HINGE ASSEMBLY L R 302A 5421JA0037A EVAPORATOR ASSEMBLY R 307A 2521CRA3001 COMPRESSOR SET ASSEMBLY NS30LAEG BR1EOIL R 308A 6748C 0003C P T C ASSEMBLY P330MC LUCON PX9001F 250 MURATA R 309A 6750C 0004A O L P 4TM149NFBYY 520 R 310A 3550CT0008A COVER P T C R 312A J734 00005A RUBBER SEAT R 313A 1PZZJQ3008A PIN DRAWING R 315A 3103JQ3001C COMP BASE ASSEMBLY STD R 317A 5850JQ2001E DRIER R 318A 493...

Reviews: