LG GCS165SV User manual

CHEST FREEZER
SERVICE MANUAL
CAUTION
BEFORE SERVICING THE UNIT, READ
THE "SAFETY PRECAUTIONS" IN THIS MANUAL.
COLOR: PCM-Super WhiteMODEL: GCS165SV
http://biz.lgservice.com

CONTENTS
-2-
SAFETY PRECAUTIONS
(Page)
SAFETY PRECAUTIONS ............................................................................................................................................................. 2
SERVICING PRECAUTIONS ....................................................................................................................................................... 3
SPECIFICATIONS .......................................................................................................................................................................... 4
DISASSEMBLY ................................................................................................................................................................................ 6
DOOR .............................................................................................................................................................................................. 6
HANDLE ........................................................................................................................................................................................ 6
THERMOSTAT................................................................................................................................................................................ 6
ADJUSTMENT ............................................................................................................................................................................ 7
CIRCUIT DIAGRAM ..................................................................................................................................................................... 8
TROUBLESHOOTING ................................................................................................................................................................... 9
COMPRESSOR AND ELECTRIC COMPONENTS .......................................................................................................................................................................................... . 10
PTC .............................................................................................. ................................................................................................... 11
OTHER ELECTRIC COMPONENTS ........................................................................................................................................... 12
EXPLODED VIEW .... . .................................................................................................................................................................. 13
8. Do not open the sealed refrigeration system. It could
9. Curatorial, combustible, explosive, corrosive and volatile
goods cannot be stored in the chest freezer.
11. Chemic reagent is not allowed when washing the chest
freezer. Pls clean it both inside and outside with soft cloth
in litmusless soap water or abluent.
10. Turn off the power and open the door, take the goods to
make defrosting when frost thickness is more than 5mm.
Acuate or hard tools are not allowed to make defrosting.
cause injury or pollute the air. Leave this job to an
autherized servicer with the appropriate refrigerant
recovery equipment.
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.)
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

-4-
Φ0.8
molecular siever
Door
Leg Adjust
Lock
Machine room
Decor, cover
Thermistor
ITEMS SPECIFICATIONS
DIMENSIONS (mm)
NET WEIGHT (kg)
COOLING SYSTEM Direct Cooling
TEMPERATURE CONTROL
Knob Dial
DEFROSTING SYSTEM Heater Defrost
Heat preservation
Cyclopentane
REFRIGERANT R134a(90 g)
ITEMS SPECIFICATIONS
Capillary
Drier
1 EA
LOCK ASSEMBLY
1 EA
Manual owners (1EA)
Card, warranty (1EA)
Key (2EA)
Cover Glass
Manual,assembly owners (1EA)
COMPRESSOR PTC Starting Type
EVAPORATOR Fin Tube Type
CONDENSER
Ref. No: GCS165SV
SPECIFICATIONS

-5-
DISASSEMBLY
I. Instruction for removal of the temperature control component
II. Instruction for removal of the hinge components
1. Removal of the upper housing of the hinge: slightly
move the upper housing of the hinge outwards, and lift
upwards to remove.
2. Removal of the lower housing of the hinge: slightly
move the lower housing of the hinge outwards, and
push downwards to remove.
3. Removal of the hinge: screw off the screws for fixing
the hinge with the pneumatic screw driver to remove
the hinge from the case.
1. Removal of the temperature control component:
hold the fixture on the upper part of the temperature
control panel to push the temperature control
component outwards the case from the compressor
cabinet; hold and lift upwards the top of the
temperature control panel to remove the temperature
control component from the case after pushing.
2. Removal of the temperature control knob:
pull the temperature control knob from the
temperature controller directly.
3. Removal of the temperature controller:
Remove the screw which is used to fix the case controller
and controller panel , separate these 2 parts. Loose and
remove the temperature controller fix nut with Φ15mm sleeve,
4. Removal of the indicator lamp:push aside the clamped hook a little ,
pull the indicator lamp outwards and remove it
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