LG GCS165SVB Manual book [id]

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CHEST FREEZER

SERVICE MANUAL

CAUTION

BEFORE SERVICING THE UNIT, READ
THE "SAFETY PRECAUTIONS" IN THIS MANUAL.

COLOR: PCM-Super WhiteMODEL: GCS165SV

CONTENTS

(Page)

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

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

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

DISASSEMBLY ................................................................................................................................................................................ 6

THERMOSTAT................................................................................................................................................................................ 6

HANDLE ........................................................................................................................................................................................ 6

DOOR .............................................................................................................................................................................................. 6

ADJUSTMENT ............................................................................................................................................................................ 7

CIRCUIT DIAGRAM ..................................................................................................................................................................... 8

TROUBLESHOOTING ................................................................................................................................................................... 9

COMPRESSOR AND ELECTRIC COMPONENTS ............................................................................................. ............................................................................................. . 10

PTC .............................................................................................. ................................................................................................... 11

OTHER ELECTRIC COMPONENTS ........................................................................................................................................... 12

EXPLODED VIEW .... . .................................................................................................................................................................. 13

SAFETY PRECAUTIONS

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. 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.

9. Curatorial, combustible, explosive, corrosive and volatile
goods cannot be stored in the chest freezer.

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.

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.

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)

-2-

POINT TO BE

BROKEN

SERVICE TUBE

EXTENSION

Figure 1 Figure 2

CHARGE TUBE

EXTENSION

SOLDERING

POINT

FEMALE
HANSEN

MALE

HANSEN

SERVICING PRECAUTIONS

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)

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)

Figure 3

Figure 4

TO THE

VACUUM

PUMP

PRESSURE

GAUGE

TO THE
R-134a CYLINDER

TO THE
REFRIGERATION
SYSTEM

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.

Figure 5

FILLING OR
CHARGE TUBE

TO THE
REFRIGERATION
SYSTEM

VACUUM

TO THE

PUMP

VALVE TO BE
OPENED WHEN
REFILLING

TO THE
CHARGE
CYLINDER

VALVE TO BE
CLOSED
AFTER VACUUM

-3-

SPECIFIC A TIONS

Ref. No: GCS165SV

ITEMS SPECIFICATIONS

DIMENSIONS (mm)

NET WEIGHT (kg)

COOLING SYSTEM Direct Cooling

TEMPERATURE CONTROL

DEFROSTING SYSTEM

Heat preservation

COMPRESSOR PTC Starting Type

EVAPORATOR Fin Tube Type

CONDENSER

REFRIGERANT

Knob Dial

Heater Defrost

Cyclopentane

R134a(90 g)

ITEMS SPECIFICATIONS

Capillary

Drier

LOCK ASSEMBLY

Cover Glass

Manual,assembly owners (1EA)

Φ0.8

molecular siever

1 EA

1 EA

Manual owners (1EA)

Card, warranty (1EA)

Key (2EA)

Door

Leg Adjust

-4-

Lock

Decor, cover

Machine room

Thermistor