LG GN-V192 User manual

CAUTION
BEFORE SERVICING THE UNIT,READ THE "SAFETY
PRECAUTIONS"IN THIS MANUAL.
REFRIGER ATOR
SERVICE MANUAL
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MODEL : GN‑V192,V212,V232 S

6
SAFETY PRECAUTIONS ........................................................................................................................................................
SPECIFICATIONS....................................................................................................................................................................
PARTS IDENTIFICATION ........................................................................................................................................................
DISASSEMBLY...................................................................................................................................................................... 6-7
DOOR....................................................................................................................................................................................
DOOR SWITCH..................................................................................................................................................................... 6
THERMOSTAT ........................................................................................................................................................................
FAN AND FAN MOTOR..........................................................................................................................................................
DEF' CONTROL ASM ............................................................................................................................................................ 7
REFRIGERATOR ROOM LAMP............................................................................................................................................
CONTROL BOX-R..................................................................................................................................................................
ADJUSTMENT...................................................................................................................................................................... 8-9
COMPRESSOR......................................................................................................................................................................8
PTC-STARTER....................................................................................................................................................................... 8
OLP (OVER LOAD PROTECTOR).........................................................................................................................................9
CIRCUIT DIAGRAM...............................................................................................................................................................
TROUBLESHOOTING...................................................................................................................................................... 1 -1
COMPRESSOR AND ELECTRIC COMPONENTS .............................................................................................................
10
PTC AND OLP......................................................................................................................................................................
DEFROST TIMER.................................................................................................................................................................
ANOTHER ELECTRIC COMPONENT.................................................................................................................................
SERVICE DIAGNOSIS CHART.............................................................................................................................................
REFRIGERATING CYCLE ...............................................................................................................................................15-16
EXPLODED VIEW ............................................................................................................................................................. 17-19
REPLACEMENT PARTS LIST ............................................................................................................................................... 20
CONTENTS
Please read the following instructions before servicing your
refrigerator.
1. Check the refrigerator for current leakage.
7. Close the top door before opening the bottom door.
Otherwise, you 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 metal products in the freezer with wet This is to prevent injuries from the sharp evaporator
hands. This may cause frostbite.
6. Prevent water from following onto electric elements in
the mechanical parts.
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 -
SERVICING PRECAUTIONS ...................................................................................................................................................
2
3
4
5
6
6
6
7
7
1
11
12
13
14
12

AIR RECHARGING IN COMPRESSOR
Test the refrigeration system connecting it electrically before
refilling operation. It is necessary to ascertain the function
of the motor-compressor and identify the defects
immediately. If defects have been found, empty the old
system of possible R-134a residue by breaking off the end
of the extension piece at its narrow point. (Figure 1)
Replace the filter and any damaged components. Unsolder
and pull off the piece remaining inside the service tube and
then attach an complete extension with male Hansen and
at last, solder it to the same tube again. (Figure 2)
It is necessary to execute the soldering operation with
valve open so that the fumes caused by oil residue can
come out freely without blowholes between two tubes
during the heating the of the point to be soldered.
The extension fitted with the male Hansen is connected to
the female fitting of the vacuum pump tube. (Figure 3)
Air evacuating from the system begins as soon as the
pump starts. The refrigeration system must be kept under
vacuum until the reading on the low-pressure gauge
indicates vacuum (0 absolute, -1 atm., -760 mm hg) in any
case it is advisable to keep the pump running for about 30
minutes. (Figure 3)
In case that a considerable leakage occurs it will be
necessary to stop the vacuum pump and to add asmall
quantity of Freon to the system, if vacuum should not be
obtained (pressure gauge can't fall to 1 atmosphere), start
the refrigeration unit and find the leakage with the special
leak-finder. When the defective soldering point is visible,
re-do it after opening the extension tube valve and
reestablishing the normal outside pressure inside the
group.
Because the melted alloy is sucked into the tubes and
block them, the pressure must be rebalanced when
vacuum is in the system in soldering. As soon as the
vacuum operation 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
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 addition, check the graduated scale on the cylinder for
the quantity of R-134a to be added, for example, if we
have 750 grams of Freon in the cylinder and must add 140
grams to the group, this amount will be reached when
R-134a has dropped to 610 grams, remembering that the
indicator shows a lower limit of meniscus. Do this after
choosing the scale corresponding to the gas pressure
different scales reported as the same gas pressure
indicated by the pressure gauge on the top of the column.
To make R-134a flow into the system, open the valve
placed at the base of the cylinder and connected to the
filling tube. The amount of Freon cannot be added to the
system all at
once because it may cause a blocking of motor-
compressor.
Therefore, proceed by adding the original
quantity of about 20-30 grams and close the valve
immediately.
The pressure rises and the motor compressor must start
sucking the gas and lowering the pressure again. Regulate
the valve again, maintaining the same manner until
reaching to the quantity of R-134a established for the
system being charged. When the system is running, the
suction pressure must be stabilized between 0.30 to
0.6(0.10 to 0.4) atmosphere.
SERVICING PRECAUTIONS
- 3 -
POINT TO BE BROKEN
SERVICE TUBE EXTENSION
CHARGE TUBE
EXTENSION
FEMALE
HANSEN
MALE HANSEN
SOLDERING POINT
Figure 1 Figure 2
TO THE
VACUUM
PUMP
PRESSURE
GAUGE
Figure 3
TO THE R-134a CYLINDER
TO THE REFRIGERATION
SYSTEM Figure 4
FILLING OR VALVE TO BE OPENED
CHARGE TUBE WHEN REFILLING
TO THE REFRIGERATION TO THE CHARGE
SYSTEM CYLINDER
VALVE TO BE CLOSED
AFTER VACUUM
TO THE
VACUUM
PUMP Figure 5
5 grams that can be added. (Figure 4)

- 4 -
1. SPECIFICATIONS
ITEMS SPECIFICATIONS
FREEZER 51
NET CAPACITY REFRIGERATOR
TOTAL 1
DIMENSIONS (mm) 537(W)
X 572(D) X 1236(H)
NET WEIGHT (kg) 44
COOLING SYSTEM aF n Cooling
TEMPERATURE CONTROL
Full Automatic
DEFROSTING SYSTEM Heater Defrost
With a Timer
OUT CASE
INNER CASE A B S
INSULATION Polyurethane Foam
Coated Steel Sheet
( l)
ITEMS SPECIFICATIONS
FREEZER 1 EA
REFRIGERATOR 1 EA
VEGETABLE TRAY
EGG TRAY 1 EA
ICE MAKER
TWIST ICE TRAY(*) TWIST ICE TRAY & ICE BANK
ICE TRAY ICE TRAY & ICE BANK
DEODORIZER 1EA
COMPRESSOR
CONDENSER
REFRIGERANT
LUBRICATING OIL
DEFROSTING DEVICE
EVAPORATOR
SHELF
ITEMS
SPECIFICATIONS
FREEZE51
NET CAPACITY REFRIGERAT 137
TOTAL188
DIMENSIONS (mm) 537(W)
X 606(D) X 1451(H)
NET WEIGHT (kg) 46
COOLING SYSTEM
TEMPERATURE CONTROL
Full Automatic
DEFROSTING SYSTEM With a Timer
OUT CASE
INNER CASE
INSULATION Polyurethane Foam
ITEMS
( l)
SPECIFICATIONS
FREEZER
REFRIGERATOR
VEGETABLE TRAY
ICE MAKER
TWIST ICE TRAY(*)
ICE TRAY
COMPRESSOR
EVAPORATOR
CONDENSER
REFRIGERANT
LUBRICATING OIL
DEFROSTING DEVICE
SHELF
(*) OPTIONAL
Knob
Drawer Type
P.T.C Starting Type
Fin Tube Type
Pipe On Sheet Type
R134a (105g)
FREOL a22G (210cc)
L-CORD, PLATE HEATER
Fan 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
P.T.C Starting Type
Fin Tube Type
Pipe On Sheet Type
R134a (105g)
FREOL a22G (210cc)
VITAMIN KIT 1EA
VITAMIN KIT 1 EA
(*) OPTIONAL
1-1 GN-V192
1-2 GN-V212 / V232
L‑CORD,PLATE HEATER
- 4 -
537 (W)X572 (D)X1386(H)
537 (W)X572 (D)X1451(H)
*19
*19

2. PARTS IDENTIFICATION
- 5 -
NOTE : This is a basic model. The shape of refrigerator is subject to change.
FREEZER
COMPARTMENT
Twisting Ice Serve
(Option) or General
Type Ice Tray
Freezer Temperature
Control Dial
Freezer Shelf
REFRIGERATOR
COMPARTMENT
Chilled Compartment
Refrigerator Temperature
Control Knob
Lamp
Shelves (Optional)
Deodorizer
(Optional)
Vitamin Kit
(Optional)
Vegetable Drawer
Used to keep fruits
and vegetables, etc.
fresh and crisp.
Freezer Door Rack
Egg Storage Rack
Movable Rack
Refrigerator Door
Rack (Optional)
Leveling Screws
All parts shown may not be included with every model.
(*)Optional part