LG GC-181SA.CSWQRAN, GR-181 Service Manual
REFRIGERATOR
SERVICE MANUAL
MODEL: GC-181SA.CSWQRAN
CAUTION
BEFORE SERVICING THE UNIT, READ
THE "SAFETY PRECAUTIONS" IN THIS MANUAL.
COLOR:SUPER WHITE
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CONTENTS
-2-
SAFETY PRECAUTIONS
(Page)
SAFETY PRECAUTIONS .............................................................................................................................................. 2
SERVICING PRECAUTIONS ......................................................................................................................................... 3
SPECIFICATIONS ...........................................................................................................................................................4
PARTS IDENTIFICATION ...............................................................................................................................................4
DISASSEMBLY ......................................................................................................................................................... 5 - 6
DOOR .......................................................................................................................................................................... 5
EVA DOOR ..................................................................................................................................................................5
TOP TABLE ................................................................................................................................................................ 6
COVER FEELER ..........................................................................................................................................................6
THERMOSTAT ............................................................................................................................................................6
COMPONENTS ...........................................................................................................................................................7-8
CIRCUIT DIAGRAM ...................................................................................................................................................... 8
TROUBLESHOOTING ............................................................................................................................................ 9 - 12
NO COOLING ............................................................................................................................................................ 10
COMPRESSOR AND ANOTHER ELECTRIC COMPONENTS ............................................................................... 11
PTC ............................................................................................................................................................................ 12
EXPLODED VIEW . ................................................................................................................................................13 - 14
REPLACEMENT PARTS LIST .....................................................................................................................................15
Please read the following before servicing your
refrigerator.
1. Check if electric leakage occurs in the set.
2. When servicing current applying parts, unplug prior to
servicing.
3. If testing with power on, wear rubber gloves to prevent
electric shock.
4. Be sure to check regular current, voltage, and capacity.
5. Don't touch metal products in a cold freezer compartment
with wet hands. It may cause frostbite or other injury.
6. Prevent water flowing to electric elements in mechanical
parts.
7. When tilting the set, remove any materials on the set,
especially thin plate type (ex,: glass plates or books.)
8. When servicing evaporator part, wear cotton gloves to
prevent injury by sharp fins of the evaporator.
9. Do not open the sealed refrigeration system. It could
cause injury or pollute the air. Leave this job to an
autherized servicer with the appropriate refrigerant
recovery equipment.
AIR RECHARGING IN COMPRESSOR
Test the refrigeration system by connecting it electrically before
beginning the refilling operation. This is necessary to ascertain
the function of the motor-compressor and identify defects
immediately. If defects have been found, empty the old system
of R134a residue by breaking off the end of the extension piece
at its narrow point.
(Figure 1) Use the appropriate refrigerant recovery equipment.
Replace the filter and any damaged components. Unsolder and
pull off the piece remaining inside the service tube and then
attach an extension with male Hansen, and last, solder it to the
same tube again. (Figure 2)
POINT TO BE
BROKEN
CHARGE TUBE
EXTENSION
FEMALE
HANSEN
MALE
HANSEN
SOLDERING
POINT
SERVICE TUBE
EXTENSION
Figure 1 Figure 2
SERVICING PRECAUTIONS
-3-
If case that a considerable leakage occurs, it will be necessary
to stop the vacuum pump and add a small quantity of Freon to
the system, if vacuum should not be obtained (pressure gauge
doesn't fall to 1 atmosphere.) Start the refrigeration unit and
find the leakage with a special leak-finder. When the defective
soldering point is visible, repair it after opening the extension
tube valve and reestablishing the normal outside pressure
inside the system.
Because the melted solder is sucked into the tubes and blocks
them, the pressure must be rebalanced when vacuum is in the
system for soldering. As soon as the vacuum operation is over,
add the quantity (in grams) of R134a to the refrigeration
system. Remember that every system has an exact quantity of
R134a with a tolerance of ±5 grams than can be added.
(Figure 5)
TO THE
R-134a CYLINDER
TO THE
REFRIGERATION
SYSTEM
FILLING OR
CHARGE TUBE
VALVE TO BE
OPENED WHEN
REFILLING
TO THE
REFRIGERATION
SYSTEM
TO THE
CHARGE
CYLINDER
VALVE TO BE
CLOSED
AFTER VACUUM
TO THE
VACUUM
PUMP
TO THE
VACUUM
PUMP
PRESSURE
GAUGE
Before performing this operation (if the vacuum pump and
refilling cylinder are connected), make sure that the valve
placed between the vacuum pump and refilling tube are closed
to keep the Freon from adding to the system.(Figure 6)
In addition, check the graduated scale on the cylinder for the
quantity of R134a to be added; for example, if we have 750
grams of Freon in the cylinder and must add 165 grams to the
group, this amount will be reached when R134a has dropped to
585 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 R134a 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 original quantity of about 20-30
grams and close the valve
immediately thereafter.
The pressure rises and the motor-compressor must start,
sucking the gas and making the pressure go down again.
Regulate the valve again, maintaining the same manner until
reaching the quantity of R134a established for the system being
charged. When the system is running, the suction pressure
must be stabilized from 0.10 to 0.4 atmosphere.
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 heating 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 60 minutes. (Figure 4)
Figure 3
Figure 4
Figure 5
1. SPECIFICATIONS
-4-
2. PARTS IDENTIFICATION
ITEMS SPECIFICATIONS
FREEZER 14
STORAGE CAPACITY
REFRIGERATOR
126
TOTAL 140
DIMENSIONS (mm) 550 (W) X 600 (D) X 850 (H)
NET WHIGHT(kg) 36
TEMPERATURE CONTROL KNOB DIAL
DEFROSTING SYSTEM MANUAL
OUT CASE Coated Steel sheet
INNER CASE ABS
INSULATION CYCLOPENTANE
1-1 GR-181
ITEMS SPECIFICATIONS
VEGETABLE TRAY Drawer Type
EGG TRAY 1 Piece
ICE TRAY 1 Piece (Plastic)
COMPRESSOR P.T.C Starting Type
EVAPORATOR ROLL BOND TYPE
CONDENSER Wire Condenser
REFRIGERANT R-134a (105g)
LUBRICANT OIL FREOL @ 15G(210cc)
EVAPORATOR(Door Inside)
- The heart of the refrigerator.
- It evaporates the refrigerant
fluid and thereby absorbs
heat from the surrounding
area.
ICE CUBE TRAY(Door Inside)
Ice cube is easy to remove
from the tray.
DRIP TRAY
Catches the water that
drips off the evaporator
when defrosting.
SHELVES
MAGNETIC GASKET
- Tight fitting door seal keeps
all the cooling power locked
inside.
- No hooks or latches.
GLASS LID & VEGETABLE
CONTAINER
LEG ADJUST
COMMODITY RACKS
EGG TRAY
EVA DOOR
BOTTLE RACK
NOTE : This is a basic model. The shape of refrigerator is subject to change.
THERMOSTAT
CONTROL DIAL
Regulates the operation of
the motor and controlls the
temperature inside the
refrigerator.
3. DISASSEMBLY
-5-
A. DOOR
1. Unscrew the 2xBOLTS ▼, then remove the hinge (L) ※.
2. Remove the LEG
〒.
3.
Gently pull the door downwards to remove it.
ý Reversible
4. Before refitting the door, swap the Hinge Cap → by pulling it
ou
t from its current location and repositioning it on the other
side of
the door. Care should be taken not to damage the
adja
cent surfaces when removing the Hinge Cap.
5.
Unscrew the Upper Hinge pin (U) ← and screw it into the
opposite
side hole.
6. After refitting the door, fix the Lower Hinge(L) in the
apposite side by using 2xBOLTS.
7.
Fix the Leg.
8.
Carefully place the appliance in an upright position.
Adjust the Leveling screw to make sure the appliance is
steady and check that the door opens and closes
properly.
Figure 7
B. EVA DOOR
1. Open the EVA DOOR, and Grasp the Bottom side of the
EVA DOOR Hinge.
2. Take it out forwards
※
by lifting it slightly up
▼
.
ý Reversible
3.
Rotate the EVA DOOR 180 degrees, and insert EVA
DOOR to opposite side top hole first, then in to the
Bottom side hole.
4.
Check that EVA DOOR is installed properly.
Figure 8
1. First unplug the appliance.
2.
Remove foods and accessories like shelves or trays
which are not fixed in the refrigerator
.
3.
Carefully lay the appliance on a cushion like packing
material to avoid the damage of refrigeration circuit
.
4. Use ‘+’ driver or spanner to fix or remove the bolts
.
PRECAUTION
Note: Reversing the doors is not covered by the
warranty.
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