LG GR 151SPF User Manual REFRIGERATOR Manuals And Guides L0301001

LG Refrigerator Compact Manual L0301001 LG Refrigerator Compact Owner's Manual, LG Refrigerator Compact installation guides

User Manual: LG GR-151SPF GR-151SPF LG REFRIGERATOR - Manuals and Guides View the owners manual for your LG REFRIGERATOR #GR151SPF. Home:Kitchen Appliance Parts:LG Parts:LG REFRIGERATOR Manual

Open the PDF directly: View PDF .
Page Count: 13

Download
Open PDF In Browser	View PDF

SAFETY

PRECAUTIONS

Please read the followings before servicing your refrigerator.
1. Check if an electric leakage occurs in the set.

6. Prevent water flowing to electric elements in mechanical
parts.

2. When servicing current applying parts, unplug prior to
servicing.

7. When sloping the set, remove any materials on the set,
especially thin plate type(ex,: glass plates or books.).

3. In case of testing with power injecting, wear rubber
gloves to prevent electric shock.
4. if you use any appliances, check regular current, voltage
and capacity.

8. When servicing evaporator part, wear cotton gloves
without fail. It is to prevent wound by sharp fin of
evaporator.

6. Don't touch metal products in cold freezer room with wet
hand. It may cause frostbite.

9. Leave a breakage freezing cycle to a heavy service
center. The gas in cycle inside may soil ambient air.

SERVICING
AIR RECHARGING

PRECAUTIONS

IN COMPRESSOR

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
30 minutes. (Figure 4)

Replace the filter and any damaged component& Unsolder
and pull off the piece remaining inside the service tube and
then attach an extension completely with male Hansen and
last, solder it to the same tube again. (Figure 2)

POINT TO BED
BROKEN

CHARGE TUBED FEMALE[
EXTENSION
HANSEN

MALED
HANSEN
GAUGE
SERVICE TUBED
EXTENSION

Figure

SOLDERINGD
POINT

Figure 2

Figure 3

-3-

Figure 4

In case that a considerable leakage occurs and to stop the
vacuum pump will be necessary and 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 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 R12 to the refrigeration system. Remember that every
system has an exact quantity of R-12 with a tolerance of
-+5grams than can be added. (Figure 5)

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 for adding to the system. (Figure 6)

FILLING ORD

VALVE TO BE []

CHARGE TUBE

REFILLING
OPENED WHEN []
k_

_L
TO THE[]
REFRIGERATIOND
SYSTEM

TO THE []
CHARGE[]
CYLINDER

TO THED
VACUUM[
PUMP

VALVE TO BE[]
CLOSEDD
AFTER VACUUM

Figure 6

In addition, check the graduated scale on the cylinder for
the quantity of R-12 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 R-12
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 R-12 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.
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 R-12 established for the
system being charged. When the system is running, the
suction pressure must be stabilized from 0.30 to 0.6
atmosphere.

TO THED

TY
7L'
NDE
T 7R
RAT,ON
[]
SYSTEM

Figure 5

-4-

AIR RECHARGING

IN COMPRESSOR

Test the refrigeration system by connecting it electrically
before refilling operation. This is necessary to ascertain the
function of the motor-compressor and identify the defects
immediately. If the defects have been found, empty the old
system of eventual R134a 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 extension completely with male Hansen and
last, solder it to the same tube again. (Figure 2)

POINT TO BEB
BROKEN

CHARGE TUBED
EXTENSION

FEMALEC
HANSEN

MALE£]
HANSEN
SERVICE TUBEB
EXTENSION

Figure

GAUGE

SOLDERINGE]
POINT

Figure 2

Figure 3

-5-

Figure 4

In case that a considerable leakage occurs and to stop the
vacuum pump will be necessary and 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 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
R134a to the refrigeration system. Remember that every
system has an exact quantity of R134a with a tolerance of
-+5grams than can be added. (Figure 5)

FILLING ORB

VALVE TO BE D

CHARGE TUBE

REFILLING
OPENED WHEN []

TO THE[]
REFRIGERATION[]
SYSTEM

TO THE []
CHARGED
CYLINDER

TO THEE
VACUUM[
PUMP

VALVE TO BED
CLOSEDD
AFTER VACUUM

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.
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.

TO THED
R-134a CYLINDER

_-__

TO THEE]
REFRIGERATION[]
SYSTEM

Figure 5

-6-

1. SPECIFICATIONS
1-1 GR-151
ITEMS

SPECIFICATIONS

ITEMS

SPECIFICATIONS

DOOR TYPE

1DOOR

EVAPORATOR

ROLL BOND TYPE

NET CAPACITY

124 l

DIMENSION

484(W)X850(H)X549(D)mm

WALL CONDENSER

NET WEIGHT

30 Kg

(FLUSH BACK)

REFRIGERANT

R_12 (80g)

CONDENSER

DEFROSTING
TEMPERATURE
INSULATION

TYPE

SYSTEM

MANUAL

CONTROL
DOOR
CABINET

LUBRICANT
LUBRICANT

KNOB DIAL

VS Series

POLYURETHANE

COMPRESSOR

POLYURETHANE

NS Series
COMPRESSOR

R-12(80g)

R-134a(95g)

HTS*150

FREOL (z22G

(200cc)

HTS*150

FREOL (z22G

(180cc)

2. PARTS IDENTIFICATION
EVAPORATOR(Door Inside)
- The heart of the refrigerator.
- It evaporates the refrigerant
fluid and thereby absorbs
heat from the surrounding.

__
\4,,\
\\ \
\\

THERMOSTAT
Regulates the operation of
the motor and controlls the
temperature inside the
refrigerator.

ICE CUBETRAY(Door Inside)
Ice cube is easy to remove
from the tray

DRIP TRAY
Catches the water that
drips off the evaporator
when defrosting.

3AN
Keeps any kinds of bottles.

PLASTIC COATED
SHELVES
Have full width and can
slide out,
- Tight fitting door seal
keeps all the cooling
power locked inside.
- No hooks or latches.

GLASS LID & VEGETABLE
CONTAINER

NOTE : This is a basic model. The shape of refrigerator is subject to change.

-7-

3. DISASSEMBLY
A. DOOR

C. COMPRESSOR

1. Loosen 3 screws holding an upper hinge to separate the
door body. (Figure 7)

1. Remove Protector Cover, Power Cord and Lead Wire
first. (Figure 11)
2. Separate OLR
3. Separate PTC.

AND PTC

4. Remove the Compressor Base by loosening 4 bolts
fixed to base plate of the set. (Figure 12)

Figure 7

B. THERMOSTAT

Figure

1. Seperator feeler of thermostat from evaporator.
2. Loosen 1 screw holding the case to remove the Thermo
cover. (Figure 9)

Figure 12

5. Remove the Compressor by loosening 2 earth screws
next to Compressor.
NOTE : Replace the Compressor, after peeling off
painted part of earth terminal.
• Compressor inhales the gas evaporated from Evaporator
and condenses this gas and then delivers to Condenser.
• PTC is abbreviation of Positive Temperature Coefficient
and is attatched to the Compressor, and operates motor.
• OLP prevents Motor coil from being started inside
Compressor.
• Do not turn the Adjust Screw of OLP in any way for
normal operation of OLR

Figure 8

Figure

3. Pull Knob DiaL(Figure 8)
4. Pull out thermostat in the thermostat cover, and
disconnecting lead wires. (Figure 10)
NOTE : Replace a proper specification

Figure

new thermostat.

-8-

2000.03.13

100/70

CIRCUIT DIAGRAM
THERMOSTAT

_, i
_l

GN(GI_.)

YL :YELLOW
BK:BLACK
BL:BLUE
GN:GREEN
PK:PINK

4N-I

BL_ _

__C_IOMPRESSOR

P.T.CSTARTER
THE PLUG TYPE ON CIRCUIT DIAGRAM
TO CHANGE IN DIFFRENT LOCALTIES.

IS SUBJECT
3854,JD1009E

TROUBLESHOOTING
DEFECT

CAUSE

EFFECT

REMEDY

GROUP PARTIALLY
OR COMPLETELY
OUT OF
REFRIGERANT
CHARGE

Evaporatordose not frost even
though motor-compressorruns
continually.

An empty refrigerantsystem
indicates a leakage of R_2.This loss
is generallyto be lookedfor at the
soldering pointsconnectingthe
various componentsor in an
eventualhole in the evaporator
made by the user.

Leakagemust be eliminatedby
resolderingthe defective point or
substitutingthe damaged
evaporator.

EXCESSIVELY
FULL

This defect is indicatedby the
presence of water outside
refrigerator near the motor caused
by formationsof ice on the return
tube.

If in the refrigerantsystema quantity
of R_2is introducedwhich is greater
than that indicated,the excess gas
dose net terminateits expansionin
the evaporatorbut proceedsinto the
return tube.

The systemmust be emptiedand
subsequentlyrefilled introducingthe
correctquantity of R_2.

HUMIDITY IN THE
SYSTEM

This defect is indicated by the partial
frostingof the evaporatorand by
continual defrosting cycles
determined by the interruption
of the
flow of gas on the evaporator.The
motor compressorkeeps running.

The refrigerantsystemis humid
when thereis a small percentageof
water present which, not completely
retained by the dehydratorfilter,
enters into circulation withthe Freen
and freezes at the capillaryexit in
the evaporator.

The systemmust be emptiedand
then refilledafter eliminatingthe
humidity.

PRESENCE OFAIR
IN THE SYSTEM

Poor performanceof the refrigerant
system which is indicated:on the
evaporatorwith a slight frost which
dose not freezeand an excessive
overheatingof the condenserand
motor-compressor.

There is air in a refrigeratingsystem
when duringthe filling phase
vacuum is not effectedor it is not
adequately done.

Groupmust be drained and
subsequentlyrefilled after carefully
creatingvacuum.

BLOCKED
CAPILLARY

Becauseof the lackof circulation
Freon inthe system, thereis no
frostingof the evaporator,while a
slight overheatingof the first spiral
of the condenseris noted.

Eventual impuritiescontained inthe
Freonor in the componentsof the
refrigerationsystem before
assembly and not retained bythe
filter can obstruct the capillary.

Torestore the systemit must be
emptied,substitutethe capillaryor
the evaporatorentirely in case the
capillaryis coaxial with respectto
the returntube, then refill it.

MOTORCOMPRESSOR
SHOR%CIRCUITED
OR BLOCKED

The system dose not work andthe
"clixson" intervenes interrupting
deliveryto the motor-compressor.

In case of short circuit, the
breakdown is dueto the electric
winding: if blocked,there is a
mechanicalfailure in the motor-

The motor-compressormust be
replacedand then proceed with
refilling.

compressor.
MOTORCOMPRESSOR
DOSE NOT
COMPRESS

Nofrost forms on the evaporator
even if the motor-compressoris
apparentlyrunning regulary.

In this case there is a mechanical
failure inthe diaphramvalves which:
remaining continuallyopen, do not
permit the pistonto suckand
compressorthe which
consequentelydose not circulate in
the system.

The motor-compressormust be
replacedand then proceed with
refilling.

NOISY MOTORCOMPRESSOR

In case of mechanicalfailure in the
motor-compressorthere in an
excessive noise when the systemis
functioning: in case a suspension
spring is unhooked,bangingwill be
heard and therewill be especially
strong vibrationswhen the system
starts up and stops.

The causeof the excessive noise is
normallyto be soughtfor in a
mechanical breakdown, and only
rarely in the unhookingof one of the
suspensionsprings.

The motor-comprossormust be
substitutedand then proceedwith
the refilling.

-10-

NO COOLING

doesn't
run.
The Compressor

flows at the contacting
point of the Thermostat.
Check if the current

]__

Poor contacting point
I_

tcheck
the
currentI___,t
Shorted

"_)

flowing of starting
system.

Broken

flows at the main coil of
Check
if the current
the
Compressor.

Coil shorted

H
H

Replace the
Thermostat.

Replace the device.

Replace the
Compressor.

.___. Check the components
_ components.
Replace the

on the main circuit.

Poor running of the
Compressor.

voltage.
Measure the starting

flows at the contacting
point of the starting
Check if the current
system.

"--)

Compressor

runs.

Low voltage

Poor contacting point
and broken

_4_

tChoc if' eco rent
flowing of the sub coil of
the Compressor.

ls the
currentcomponents
amount of
normal?
the
electric

Frost doesn't form at the
Evaporator when
operating set for more
than 30 min.

Shorted

Ii_

.I The
coil
worn
out.of theMotor is
Compressor

,J
Poor compressing.
Refrigerant leaks.

-11 -

Increase the voltage.

Replace the device.
H

H oo'aoe' e
Compressor.

I_1

.I Compressor.
Repair the

Repair the
Compressor.
H

COMPRESSOR

AND ANOTHER

Power Source

ELECTRIC

COMPONENTS

Separate the PTC-STARTER from
the Compressor and measure the
voltage between M and C of the
Compressor.

The applied voltage is not in the
range of Rating Voltage _+10%.

Check the
resistance of the
Compressor Motor.

voltage. (Rating
voltage _+10%)
qual to the applied

to use in the fixed
dvice the customer
range.

YES
M-C, S-C, and M-S.
Test the resistance among

Replace the Compressor.

11
[_

Check the
PTC.
resistance
of the

I
I Test the resistance of the both
J_l
terminals in the PTC-STARTER.

YES

Check OLR

regular OLR
Check if applying a

1._

,[_

Replace the
PTC-STARTER.

OLP works within 30 sec.
in forcible OLP operation
by turning instant power on
and off.

Check the
starting state.

Measure minimum starting voltage
after checking steps 1-3 above.
And measure the pressure balance
of the PTC with the interval of
more than 5 min.

Starts at the voltage of
more than 90%.

____

of 85% below.
Starts at the voltage

state at the regular
voltage
above.
Check the
starting

,_NO
Replace the PTC.

YES

,_.

Replace OLP.

Normal.

PTC

First, separate the PTC from
the Compressor and check the
voltage between NO 5 and 6
in the PTC with a multitester
or Wheatstone Bridge.

Poor starting or no
operating of the
Compressor.

.-.)

range of 15-28 for
The
valuePTC.
is in the
the 22¥

_-_

The value is 0.

The value is i -.

_'_

Separate the OLP from
the Compressor and
check resistance value
between two terminals of
OLP with Tester.

YE_

Abnormal

Check another
electric
components.

"-'N-'Q--_ Replace OLP"

-13-

Check another
electric
components.

Normal

Replace the
PTC.

5. EXPLODED

VIEW

-14-

Source Exif Data:

File Type                       : PDF
File Type Extension             : pdf
MIME Type                       : application/pdf
PDF Version                     : 1.2
Linearized                      : No
Page Count                      : 13
Page Layout                     : SinglePage
Page Mode                       : UseNone
Producer                        : Goby Monitor Application version 3, 2, 1, 4
Create Date                     : Tue Apr 03 02:44:46 2007
Author                          : 
Title                           : 
Subject                         :

EXIF Metadata provided by EXIF.tools

LG GR 151SPF User Manual REFRIGERATOR Manuals And Guides L0301001

LG Refrigerator Compact Manual L0301001 LG Refrigerator Compact Owner's Manual, LG Refrigerator Compact installation guides

Navigation menu

Versions of this User Manual:

Views

Navigation