LG LRTG1811W User Manual REFRIGERATOR Manuals And Guides L0301143

LG Top Mount Refrigerator Manual L0301143 LG Top Mount Refrigerator Owner's Manual, LG Top Mount Refrigerator installation guides

User Manual: LG LRTG1811W LRTG1811W LG REFRIGERATOR - Manuals and Guides View the owners manual for your LG REFRIGERATOR #LRTG1811W. Home:Kitchen Appliance Parts:LG Parts:LG REFRIGERATOR Manual

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SERVICING PRECAUTIONS
AIR RECHARGING

IN COMPRESSOR

vacuum operation is over, add the quantity ingrams of
R-134a to the refrigeration system. Remember that every
system has an exact quantity of R-134a that can be added
with a tolerance of :!:5 grams. (Figure 4)

Test the refrigeration system connecting itelectrically 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)
CHARGETUBE
EXTENSION

POINT TO BE BROKEN

FEMALE
HANSEN

TO THE R-134a CYLINDER

. MALERANSEN
_,,

SERVICE TUBE EXTENSION
Figure

SYSTEM
TO THE REFRIGERATION
I
Figure 4

SOLDERING POINT
Figure

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 is
closed in order to keep the Freon for addition to the system.
(Figure 5)
FILLING OR
VALVE TO BE OPENED
CHARGE TUBE
WHEN REFILLING

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)

TO THE REFRIGERATION
SYSTEM

TO THE CHARGE
CYLINDER

VALVE TO BE CLOSED
AFTER VACUUM
TO THE

__ESSURE

VACUUM
PUMP

GAUGE
Figure

Figure

addition, check the graduated scale on the cylinder for
the quantity of R-134a to be added, for example, ifwe 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 connected to the titling
tube. The amount of Freon cannot be added to the system
all at once because it may cause a blocking of motorcompressor. 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. Open 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.

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)
If considerable leakage occurs, it will be necessary to stop
the vacuum pump and to add a small 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 special leak-fieder. When the
defective soldering point is visible, repair 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
blocks them, the pressure must be rebalanced when
vacuum is in the system when soldering. As soon as the
-3-

2001.06.01

160/120

CIRCUITDIAGRAM
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2. PARTS IDENTIFICATION

FREEZER
COMPARTMENT
Freezer Shelf
General Type
Ice Tray
Freezer Door Bin
Freezer Temperature
Door Cooling
On the refrigerator door,
the cold air passageway is
installedto supply
cold air to the doorside of
the refrigerator
compartment.

REFRIGERATOR
COMPARTMENT
Temperature
Control Dial
Lamp

Can Server

Shelves

Dairy Corner

Snack Corner

Adjustable
Door Bin

Crisper
Used to keep fru_s
and vegetables
fresh and crisp.

Re_iger_orDoor
Rack

Screw
(Inside)

Base Grille
Push the gdlle toward
the refrigerator
until it snaps
into place.

-5-

3. DISASSEMBLY
3-1 DOOR

3-2 DOOR

• Freezer Door
1. Remove the hinge cover by pulling it upwards.

1. To remove the door switch, pull out it with a slotted type
driver as shown in (figure 9).
2. Disconnect the lead wire from the switch.

2. Loosen hexagonal bolts fixing the upper hinge to the
body and lift the freezer door.

SWITCH

LEAD WIRE
DOOR SWITCH

HINGE COVER
BOLT

HINGE

Figure
Figure

3-3 THERMOSTAT

3. Pull out the door gasket to remove from the door foam
assembly.

1. Remove Control Box4_ by loosening 2 screws attached to
seiHng of Refngerator compar_nent (Figure 10)
2. Separate the thermostat and dial knob F.

GASKET

3. Remove the thermostat

Figure

• Refrigerator

by disconnecting

the lead wire.

Door

1. Loosen hexagonal bolts attaching the lower hinge to the
body to remove the refrigerator door only.

Figure 10

LOWER HINGE

BOLT

Figure 8
2. Pull out the door gasket to remove from the door foam
assembly.

-6-

3.4 FAN AND

3-6 REFRIGERATOR

FAN MOTOR

1. Remove the freezer shelf. (If your refrigerator
Ice Maker, disassemble the ice maker first)

have an
REFRIGERATOR ROOM LAMP

2. Remove the grille by pulling it out and by loosening
screw.
3. Remove the Fan Motor assembly
and disassemble the shroud.

ROOM LAMP

by loosening

4 screws

4. Pull cot the fan end separate the Fan Motor and Bracket.
Figure
_"_

FANMOTOR

SHROUD

1. Unplug the power cord from the outlet,
2. Remove refrigerator shelves.
3. Release the hooks on both ends of the lamp shield and
pull the shield downward to remove it.
4. Turn the lamp counterclockwise.
5. Assemble in reverse order of disassembly Replacement
bulb must be the same specification as original.
(Max 40 W)

FAN
I
I

3-7 CONTROL
Figure

BOX-R

1. First, remove all shelves in the refrigerator
Box-R by loosening 2 screws.

and Control

3-5 DEFROST CONTROL ASSEMBLY
Defrost control assembly consists of Defrost Thermostat
and FUSE-M.
Defrost Thermostat functions to defrost automatically and it
is attached to metal side of the Evaporator and senses
Temp.
Fuse-M is a safety device for preventing over-heating of the
Heater when defrosting.
At the temperature
from the Heater.

COVER LAMP_I@

of 77_C. it stops the emission of heat

1. Pull out the grifie assembly.

3. Disconnect the lead wire on the right position and
seperate timer, themostat, Lamp socket, etc.

DEF-THERMO

FUSE-M
Figure

HOLDER FUSE

Figure

2. Remove the Control Box-R by pulling it downward.

2. Separate the connector connected with the Defrost
Contrbl assembly and replace the Defrost Control
assembly after cutting the Tie Wrap. (Figure 14)
SHROUD-F

Figure

-7-

4. ADJUSTMENT
4-1 COMPRESSOR

4-2-3 PTC-Applied Circuit Diagram
• According to Starting Method for the Motor

4-1-1 Role
The compressor intakes low temperature and low pressure
gas evaporated from evaporator of the refrigerator, and
condenses this gas to high temperature and high pressure
gas, and then plays delivering role to condenser.

OVERLOAD PROTECTOR{O.L.P)
--_)

4-1-2 Composition

F- -c-7

The compressor includes overload protection. The PTC
starter and OLP (overload protector) are outside the
compressor, Since the compressor is manufactured to
tolerances of 1 micron, and is sealed in a dust - and
moisture - free environment, use extreme caution when
repairing it.
4-t-3

/' ' COMPRESSOR
' ")

MOTOR

PTC STARTER

Note for Usage

HERMETIC
TERMINAL

RSiR
Figure

(1) Be careful not to allow over-voltage and over-corrent.

(2) No Strike
If applying forcible power or strike (dropping or careless
handling), poor operation and noise may occur.

4-2-4 Motor Restarting

(3) Use proper electric components appropriate to the
Compressor.
(4) Note to Keep Compressor.
If Compressor gets wet in the rain and rust in the pin of
Hermetic Terminal, the result may be poor operation
and poor contact may cause.

(2) During normal operation of the Compressor Motor, PTC
elements generate heat continuously. Therefore,
if PTC isn't cooled for a while after the power has been
shut off, the motor will not restart.

(5) Be careful that dust, humidity, and welding flux don't
contaminate the compressor inside when replacing the
Compressor. Dust, humidity, and flux due to welding
which contaminates the cylinder may cause Iockage
and noise.

4-2-5 Relation of PTC-Starter

and OLP

(1) If the power is off during operation of Compressor and
the power is on before the PTC is cooled, (instant shutoff within 2 rain. or unplugging and reconnecting), the
PTC isn't cooled and a resistance value grows. As a
result, current can_ flow to the sub-soil, the Motor can't
operate, and the OLP operates by flowing over current

4-2 PTC-STARTER
4-2-1 Composition

and PTC Cooling

(1) For restarting after power off during normal
Compressor Motor operation, plug the power cord after
5 rain. for pressure balance of Refrigerating Cycle and
PTC cooling.

in only in the main-coil.
(2) While the OLP repeats on and off operation about 3-5
times, PTC is cooled and Compressor Motor performs
normal operation.

of PTC-Starter

(1) PTC (Positive Temperature Coefficient) is a no-contact
semiconductor starting device which uses ceramic
material consisting of BaTiO3.

If OLP doesn't operate when PTC is not cooled,
Compressor Motor is worn away and causes circuitshort and tire. Therefore, always use a pmpedy
attached OLP,

(2) The higher the temperature is, the higher the resistance
value. These features are used as starting device for
the Motor.
4-2-2 Role of PTC-Starter

4.2-6 Note to Use PTC*Starter

(1) PTC is attached to Hermetic Compressor used for
Refrigerator, Show Case, and starting Motor.

(1) Be careful not to allow over-voltage and over-current.
(2) Do not strike

(2) Compressor for household refrigerator applies to
single-phase induction Motor.

Don't apply a forcible power or strike.

For normal operation of the single-phase induction
motor, in the starting operation flows in both main coil
and sub-coil. After the starting is over, the current in
subcoil is cut off. The proper features of PTC play all
the above roles. So, PTC is used as a motor starting
device.

(3) Keep apart from any liquid.
If liquid, such as oil or water away enters the PTC,
PTC materiels may fail due to insulation breakdown of
the material itself.
(4) Don't change PTC at your convenience.
Don't disassemble PTC and case. If the exterior to the
PTC-starter is damaged, resistance value is altered and
it may cause poor starting of the compressor motor may
cause.
(5) Use a propedy attached

-8-

PTC.

4-30LP

(OVERLOAD

4-3-1 Definition

PROTECTOR)

CONTACTING
POINT

of OLP

COVER

(1) OLP (OVERLOAD PROTECTOR) is attached to the
Compressor and protects the Motor by cutting the
current to the Motor if the temperature rises and
activates the bimetal spring in the OLF_
(2) When over-voltage flows to Compressor motor, the
Bimetal works by heating the heater inside the OLP,
and the OLP protects Motor by cutting off current which
flows to the Compressor Motor.

__J

BIMETAL

4-3-2 Role of the OLP
(1) The OLP is attached to the Hermetic Compressor used
for the Refrigerator and prevents the Motor Coil from
being started in the Compressor.

BIMETAL

(2) Do not turn the Adjust Screw of the OLP in any way for
normal operation of the OLP.
(Composition and connection diagram of OLP)

SCREW

ADJUST
Figure
HEATER

5. CIRCUIT DIAGRAM
CIRCUITDIAGRAM
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3854JD1046C

6. TROUBLESHOOTING
6-1 COMPRESSOR

AND ELECTRIC COMPONENTS

Power Source.

Remove the PTCStarter from the

__](RatingVoifage
±10%)?

YES

Compressor and
measure the voltage
between Terminal C of
Compressor and
Terminals 5 or 6 of PTC.

No Voltage.

--_

OLP disconnected?
-_

eplace OLR

C n% °n°ect'°n
17
"econnectI

dvise the customer
to use a regular

-}P inthe range of Rating
f Ap_dvoltage
Voifage ±10%. _n't

transformer.

Iii

Check the

Check the resistance

Motor
resistance
Compressor.of

I-

M-S in Motor
I among
M-C, S-C and
Compressor.

Check the
resistance of

_
I

Check the resistance
I of two terminals in

PTC-Starter.

YES

}e[_

Replace Compressor.

YEs
NO

PTC-Startar.

}B PTC-Starter.
Replace

YES
[_

[ Check OLR

_
I

Check if applying
l a regular OLR

30 sec. in forcible OLP I
operation by turning
instant power on and I
OLP
II
off. works within
NO

easure minimum
_
starting voltage after 5
min. for balancing cycle
pressure and cooling the

the voltage of Rating
Voltage ±10%

PTC.

below.

omponents

-10-

start in

YES

}l_l_

_ I Replace OLR

6-2 PTC AND OLP
Normal operation of
Compressor is
impossible or poor.

--}P

Separate the PTCStarter from
Compressor and
measure the
resistance between
No. 5 and 6 of PTCStarter with a Tester or
Wheat_tone Bridge.
(Figure 21)

220V/50PIz
115V/60Hz
240V/5OHz
__

: 22_Zt30%
: 6.8_,_±30%
: 33_30%

Check another
electric
components.

Replace PTCStarter

R:P_stetheer.

Observation
127, 220V/60Hz
value: 22_
is
±30%

The resistance
is 0 or several

value

hundred _._,
The value is o_.

}l.

Separate the OLP from _
Compressor and check I
the resistance value
between two terminals I
of OLP with a Tester.
(Figure 22)

Check another
v I electric components.

_
_

I
I

Replace OUR

6-3 DEFROST TIMER
/

Normal operation of
the Defrost Timer is

I---

mposs b e.

No defrosting.

Poor cooling.

I---

"-_

Position the Cam Shaft to
the point of first click
sound and check the
current flowing between
terminals NO. 1(brown)
and No. 2(bright orange).
Next, position the Cam
Shaft to the point of
second click sound and
check the current flowing
between terminals
No, 1 (brown) and
No. 4 (black)
(Figure 23).

Turn the Cam Shaft.

with holding the Cam
f Shake
about
3 times
Shaft and
Body
softly.

--_

The resistance

is _o.

The
resistance
is L J.epiecethe
I
0_2 or variable.

"_t

l_21250!/_6_iO_H_zZ!:!!:K_2b°ut
I-_{checkthean°ther
electdc components,

"1I Replace
the
Defrost Timer.

Loud click sound,

Defrost Timer.

Figure

-11 -

Defrost Timer.

I
I

6-4 OTHER ELECTRIC COMPONENTS
•

Cooling is impossible

doesn't run.

the following

components.

Cause

a. Thermostat

_ Poor contacting and
gas leakage.

b. Starting devices

_ Shorted or broken.

c. OLP

Poor contacting
_' or shorted.

d. Compressor

_Coilshorted.

coil

e. Defrost Timer

Compressor
poorly.

runs

_ Poor contacting
shorted.

_or

f. Circuit parts

indicated
Replace component,

Check a starting
voltage.

Check if current flows

,,,._ Poor contacting

to starting devices.

and broken.

in sub-coil of
Check current flowing
Compressor.

Shorted.

Check capacity

of OLP.

Low voltage.

Raise the voltage.

Replase
indicated component.

I
I

Lack of capacity.

The items described
above are normal.

Compressor.
Coil of motor

the
compressor.
Replace

• Cooling ability is pool"

Fan motor
doesn't
run.

I the
Much
EVAPORATOR.
frost is built upon

Check current flowing
of the door S/W.

{ Poor contacting.

Check current flowing
in the Fan Motor.

--_

Coil is shorted.

Check the running
condition of Timer.

Running
(Coil
is shorted.)
is poor.

Check current flowing
of the following
components.
• Defrost Thermostat
• Fuse-M
Check current flowing
of the following
components.
• L-cord
• TE-Plate Heater

indicated
Replace component.

Replace component.
indicated

Replacecomponent.
indicated

Shorted.

I
-12-

6-4 SERVICE DIAGNOSIS CHART
COMPLAINT

POINTS TO BE CHECKED

Cooling is
impossible.

•
•
•
•

REMEDY

Is the power cord unplugged from the ouget?
Check if the power S/W is sat to OFF.
Check if the fuse of power S/W is shotted.
Measure the voltage of power outlet.

• Check if the sel is placed close to wall.
• Check if the set is placed close to stove, gas
cooker and direct rays.
• Is the ambient temperature high or
the room door closed?
I • Check if put in is hot.
• Did you open the door of the set too often
or check if the door is closed up?
- Check if the Control is set to WARM.

Cooling ability
is poor.

Foods in the
Refrigerator
are frozen.

• Rs foed placed in cooling air outlet?

•
•
•

Plug to the ouifet.
Set the switch to ON.
Replace fuse.
If voltage is low. correct

wiring.

• Place the set with 6_e spece of about 10 cm (4incpes),
• Place the set apart from these heat
appliances
• Make the ambient temperature below.
• Put in foods after cooled down.
• Don't open the door too often and close
it firmly.
• Set the control to mld-positlon.

• Check if the Dial is set to COLD,

• Place foods in high temperature
(Front Part)
• Set the dial to MID.

• Is the ambient

• Set the dial to WARM.

temperature

below 5"C?

section.

Dew or ice
forms inside
the set.

° is liquid food stored?
• Check if put in hot.
• Did you open the door of the set too
often or check if the door is closed,

• Seal up liquid foods with wrap.
• Put in foods after cooled down.
• Don't open the door too often and close
it firmly

Dew forms
in the Exterior Case,

• Check if ambient temperature and humidity
of surroumcling
air are high,
• Is there gap in the door gasket?

• Wipe dew with a dry cloth. This occurrence
is solved naturally in low temperature and humidity,
• Fill up the gap.

Abnormal
noise,

• Is the set positioned

• Adjust the Adjust Screw, and position
in the firm place.
• Remove the objects.

in a firm and even place?

• Are any unnecessary objects set
in the back side of the set?
• Check if the Drip Tray is not firmly Fixed.
• Check if the cover of mechanical room
in below and front side is taken out.
Door does not
close well,

- Fix it firmly on the odginal position.
• Place the cover at the odginal position.

• Check if the door packing is dirty
with filth such as juice.
• Is the set positioned in a firm and ever} place?
• Is too much food putted in the set?

Ice and foods
smell unpleasant.

• In addition

• Check if the inside of the set is dirly.
• Did you keep fragrant foods without wrapping?
• It smells of plasfic.

to the items

Check

described

if dew forms

left, refer to the followings
/
|

the freezer.

Cycle.Check
Refrigerating

Check the
Thermistor

- Clean the door packing.
• Position in the firm place and level the
Adjust Screw.
• Keep foods not to reach the door.
* Clean the inside of the set.
- Wrap fragrant foods.
• The new products smells of plastic, but it
will go away after 1-2 weeks.

to solve the complaint.

Replace the
Components of
defrosting circuit.

Defrosting
is poor.

is
faulty.
The
cycle

The operation of
the Thermistor is
poor.

-13_

Repair the cycle.

Replace the
Thermistor.

6-5 REFRIGERATING
• Troubleshooting

CYCLE

Chart

CAUSE

STATE OF

STATE OF THE

THE SET

EVAPORATOR

TEMPERATURE
OF THE

REMARKS

COMPRESSOR

PARTIAL
LEAKAGE

Freezer
compartment and
Refrigerator don't
cool normally,

Low flowing sound of
Refrigerant is heard and
frost forms in inlet only

A little higher
than ambient
temperature.

• Refrigerant level is low due
to a leak.
• Normal cooling is possible
when injecting of Refrigerant
the regular amount.

_m WHOLE
LEAKAGE

Freezer
compartment and
Refrigerator don't
cool normally,

Flowing sound of refrigerant
is not heard and frost isn't
formed,

Equal to ambient
temperature.

• No discharging of Refrigerant.
• Normal cooling is possible
when injecting of Refrigerant
the regular amount.

PARTIAL
CLOG

Freeze
compartment and
Refrigerator don't
cool normally.

Flowing sound of refrigerant
is heard and frost forms
in inlet only.

A little higher
than ambient
temperature.

• Normal discharging of
refrigerant.
• The capillary tube is faulty.

WHOLE
CLOG

Freezer
Flowing sound of refrigerant
compartmentand
is not heard and frost isn't
Refrigeratordco'tcooL formed.

Equal to ambient
temperature.

• Normal discharging
Refrigerant.

Cooling operation
stops periodically,

Flowing sound of refrigerant
is not heard and frost melts,

Lower than
ambient
temperature

• Cooting operation restarts
when heating the inlet of
capillary tube.

O
COMPO _ RESSION
"O-ll
m
mO

Freezer and
Refrigerator

Low flowing sound of
refrigerant is heard and

A lime higher
ambient

- Low pressure at high side
of compressor due to low

don't cool.

frost forms in inlet only.

_ _ NO COMPO m RESSION
z

No compressing
operation,

Flowing sound of refrigerant
is not heard and no frost,

rm
>

G'3
m

o_
MOISTU RE
CLOG

i temperature,

refrigerant

Equal to ambient
temperature,

level.

• No pressure of high pressure
part in the compressor.

• Leakage Detection
• Observe discharging

Check if compressor
runs or nat.

point of refrigerant

which may be in the oil discharging part in the compressor and hole of evaporator.

Check if frost
forms or not in

YES

Evaporator.

No frost

leaks or not.
Check ifoil

or forms

]

in inlet only

_L
T

Frost formed normally
t
i

l Moisture Clog

Normal amount

Faulty
Compressor.

Check Compressor

amount
Refrigerant.
Observe ofthe
discharged
_, No or much amount

YES

Inject refrigerant to compressor
and check coo ng operat on.

| Clogged by dust.
L

_,{ Gas leakage.
Frost formed normally

-14-

(Check the leakage point)

• General Control of Refrigerating

Cycle

NO,

_EMS

Pipe and
piping system
opening time

Min.

Pipe: within 1 hour.
Comp: within 10 minutes.
Drier: within 20 minutes.

To protect
moisture
)enetration.

The opening time should be reduced
to a half of the standards during rain
and rainy seasons (the penetration of
water into the pipe is dangerous).

Welding

Nitrogen
)ressure

Weld under Nitrogen
atmosphere.
(N_ pressure:
0.1-0.2 kg/cm _)

To protect oxide
scale formation.

- Refer to repair note in each part.
- R-f34a refrigerant is more
susceptible to leaks than R-12 and
requires more care dudng welding.
- Do notapply force to pipes before and
after welding to protect pipe from cracking.

N_ sealed
parts

Confirm
N2 leak

Confirm air leaking sounds
when removing rubber cap.
Sound: usable
No sound: not usable

To protect
moisture
_enetration.

More than 40 minutes

To removemoisture.

Ref_
!r'_m
Cyc]a

UNIT

Erect
Jean Min.
_ne

STANDARDS

PURPOSES

REMARKS

In case of evaporator parts, if it
doesn't make sound when removing
rubber cap, blow dry air or N= gas for
more than 1 rain and use the parts,

...........................................................................................................................................................................................................................

Vacuum
degree

Torr

Below 0.03 (ref)

Note: Only applicable to the model
equipped with reverse flow
protect plate.

Vacuum

High and low pressure sides
are evacuated at the same
time for models above 200 L

Vacuum efficiency can be improved
by operating compressor during
evacuation.

Vacuum
piping

Use R-134a exclusive
manifold,

To protect mixing
of mineral and
ester oils.

Pipe
coupler

Use R-134a e0cclusive.

To protect R-12
refrigerant mixing.

Outlet

R-134a exclusive.

The rubber pipes for R-12 refrigerant
shall be melted when they are used for
R-134a refrigerant (causes of leak.)

(socket)
P_g
5

Refrigerant
weighing

R-134a exclusive,

Do not mix with
R-12 refrigerant.

Use R-134a exclusively,
Weighing allowance: +5g
Note: Winter: -5g
Summer: +5g

- Do not weigh the refrigerant at too
hot or too cold an area.
(77°F[25"C] is adequate.)

- Make
Cpppef
b_mbe
(Device
_In_
_erant)
Socket: 2SV Plug: 2PV R-134a
Note: Do not burn O-ring (bushing)
during welding.

Drier
replacement

- Use R-t34a exclusively for
R-134a refrigerator.
- Usa R-12 exclusively for
R-12 refrigerator.
- Replace drier whecever repaik_g
_rige-ator cyclepiping.

To remove the
moisture from
pipe inside.

Leak check

- Do not use soapy water for
check. It may be sucked into
the pipe by vacuum.

Defect
refrigerant
area.

-15-

leak

- Check oil leak at refrigerant leak
area. Use electronic leak detector if
oil leak is not found.
* The electronic leak detector is very
sensitive to halogen gas in the air. It
also can detect R-141b in urethane.
Practice many times before using
this type of detector.

8. EXPLODED VIEW & REPLACEMENT PARTS LIST
• The parts of refrigerator
• Capacitors

GR-T622,

and the shape of each part are subject to change in different Iocalitfes.

and fuse are optional parts.

GR-T722

I
I

-16-

-17-

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LG LRTG1811W User Manual REFRIGERATOR Manuals And Guides L0301143

LG Top Mount Refrigerator Manual L0301143 LG Top Mount Refrigerator Owner's Manual, LG Top Mount Refrigerator installation guides

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