LG GWL6026SC User manual
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MODEL: *:/6&
CAUTION
PLEASE READ CAREFULLY THE SAFETY PRECAUTIONS OF THIS BOOK
BEFORE CHECKING OR OPERATING THE REFRIGERATOR .
REFRIGERATOR
SERVICE MANUAL
HEALTHGUARD
-2-
COMPRESSOR
SPECIFICATION
Homebar
EXPLODED VIEW
Ice maker
Refreshment center
Air purification
Door removal
How to intsall the handle
How to intsall the display
How to intsall the dispensor
How to intsall the waterpipe
How to use the Pure N Fresh
CONTENTS
WARNINGS AND PRECAUTIONS FOR SAFETY
HOW TO INSTALL REFRIGERATOR
TROUBLE DIAGNOSIS
HEIGHT ADJUSTMENT
-3-
Please observe the following safety precautions in order to
use safely and correctly the refrigerator and to prevent
accident and danger during repair.
1. Be care of an electric shock. Disconnect power cord
from wall outlet and wait for more than three minutes
before replacing PWB parts. Shut off the power
whenever replacing and repairing electric components.
2. When connecting power cord, please wait for more than
five minutes after power cord was disconnected from the
wall outlet.
3. Please check if the power plug is pressed down by the
refrigerator against the wall. If the power plug was
damaged, it may cause fire or electric shock.
4. If the wall outlet is over loaded, it may cause fire. Please
use its own individual electrical outlet for the refrigerator.
5. Please make sure the outlet is properly earthed,
particularly in wet or damp area.
6. Use standard electrical components when replacing
them.
7. Make sure the hook is correctly engaged.
Remove dust and foreign materials from the housing
and connecting parts.
8. Do not fray, damage, machine, heavily bend, pull out,
or twist the power cord.
9. Please check the evidence of moisture intrusion in the
electrical components. Replace the parts or mask it
with insulation tapes if moisture intrusion was
confirmed.
10. Do not touch the icemaker with hands or tools to
confirm the operation of geared motor.
11. Do not let the customers repair, disassemble, and
reconstruct the refrigerator for themselves. It may
cause accident, electric shock, or fire.
12. Do not store flammable materials such as ether,
benzene, alcohol, chemicals, gas, or medicine in the
refrigerator.
13. Do not put flower vase, cup, cosmetics, chemicals,
etc., or container with full of water on the top of the
refrigerator.
14. Do not put glass bottles with full of water into the
freezer. The contents shall freeze and break the glass
bottles.
15. When you scrap the refrigerator, please disconnect the
door gasket first and scrap it where children are not
accessible.
WARNINGS AND PRECAUTIONS FOR SAFETY
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Figure 3
Figure 4
Figure 5
Chapter 9 Heavy Repair Method of Refrigerator by Application of
Refrigerant
1. Outline
1-1. Checkpoints before Heavy Repair
Open the Cover ASM, Back-M/C of refrigerator and check the type of refrigerant indicated on a compressor before starting work.A
yellow label is adhered to the compressor for the refrigerator using R600a as refrigerant.
1-2. Features of R600a Refrigerant
Non-polar natural gas refrigerant (CH(CH3)3)
Since R600a is same series as butane gas, there is danger of fire when discharged into air at appropriate concentration (extreme
handling is required for heavy repair of cycle).
Explosion concentration: .8% ~ 8.4%/Vol.
Burning temperature: 494ć
1-3. Features of R600a Refrigerator
With refrigerant quantity of 60% or so for the refrigerator using R134a as refrigerant
Large vacuum level at suction pressure (at low pressure side)
COMP capacity of the refrigerator using R609a as refrigerant is large by 1.7 times than that of the refrigerator using R134a.
Labels as in Figure are displayed at the compressor of a refrigerant for R600a and the back plate of refrigerator.
1-4. Location and Environment for Heavy Repair
Check that drafting and air ventilation are well done at a working area and perform work after making drafting and air ventilation
smooth (use refrigerant return bag indoors).
Check that there are fire appliances or heating source around the working area and then remove them before work.
Since R600a refrigerant is very inflammable, they should not be discharged indoors.
Be sure to follow heavy repair SVC procedures during work.
1-5. Heave Repair Work Tool
R600a refrigerant
Bombe
Pinch Pliers
Refrigerant Discharge Hose
Refrigerant Return Bag
Vacuum Pump
Handy Welding Machine
Charging Tube
Leakage Tester
Drier
Heavy Repair Method of Refrigerator by Application of Refrigerant
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2. Heavy Repair SVC Method
For the heaver repair of R600a type of refrigerator, perform work according to following SVC method.
2-1. Returnof Refrigerator Refrigerant
Required equipment: Pinch pliers, refrigerant discharging hose, refrigerant returnbag
Take power cords out and remove power between 6sec through 12sec after powering ON to open all both sides of 3way valve.
Leave doors of a refrigerator so that they are not closed.
Connect pinch pliers with a refrigerant discharging hose.
Place the outlet of a refrigerant discharging hose outside.
(Remove fire appliances or heating sources near a refrigerant discharging hose.)
Always use a refrigerant returnbag for working at the contained space.
Bore the charging pipe of a compressor with pinch pliers.
(Remove fire appliances or heating sources near a refrigerator.)
Perform refrigerant discharge for more than 7 minutes.
Heavy Repair Method of Refrigerator by Application of Refrigerant
2-2. Returnof Remained Refrigerant
Required equipment: Pinch pliers, hose for refrigerant recovery, vacuum pump
If refrigerant returntime of 7 minutes has passed, connect a vacuum pump at the ends of a
refrigerant returnhose outdoor. (Vacuum pump must operate outdoor.)
Operate a vacuum pump in order to returnrefrigerant remained in the pipe.
Vacuum working time should be for more than 10 minutes.
2-3. Welding Repair Step
Required equipment: Simple welding machine
Remove pinch pliers if remaining refrigerant returnis completed.
Cut the front part of a process pipe with a cutter. (Check that remaining refrigerant comes out.)
Perform welding work such as replacement of compressor and dryer, or repair of leakage part. (Be cautious of fire during welding
work.)
Heavy Repair Method of Refrigerator by Application of Refrigerant
2-4. Charging Tube Connection Step
Required equipment: Charging tube, simple welding machine
Remove a charging pipe to recharge R600a refrigerant after completing work, and then connect a charging tube with welding
2-5. Vacuum Air Removal
Required equipment: Vacuum pump
Connect a vacuum pump to a charging tube to perform vacuum cycle.
Vacuum work should be performed for an hour. (If vacuum time is short, normal cooling performance may not be exerted due to
failure of cooling cycle.)
Heavy Repair Method of Refrigerator by Application of Refrigerant
2-6. Refrigerant Charging
Required equipment: Bombe, R600a refrigerant (80g)
Firstly remove fire appliances and heating source for performing work when charging scaled refrigerant. (Do not spray refrigerant
indoor.)
Measure the accurate quantity (80g) of refrigerant to charge it into a Bombe.
Make the Bomber as vacuum status to charge refrigerant.
(If there is air or moisture in a Bombe, it may give effect on performance of a cooling cycle.)
Please manage refrigerant quantity as 80g±1. Differently from R134a, R600a gives much effect on
cooling performance depending on change of refrigerant quantity.
Refrigerant quantity = Weight after charging – Weight before charging (weight of vacuumed Bombe)
Connect Bombe with a charging tube to charge refrigerant.
Turn on power of refrigerator to operate a compressor.
Measure Bombe weight after 5 through 10 minutes to check remained refrigerant quantity to complete charging of refrigerant.
(After charging refrigerant, never perform welding work or work using fire appliances.)
2-7. Leak Inspection and Cycle Check
Required equipment: Leakage checking machine (foam and leakage inspection machine)
Check for leakage by using form or a leakage inspection machine at the worked part if charging of refrigerant is completed.
Check for leakage at the low pressure part with the compressor stopped, and check at the high pressure part with the compressor
being operating.
If leakage is detected, proceed to repair according to repair process again starting from“2-1. Returnof Refrigerator Refrigerant”.
(Never perform welding work or work using fire appliances.)
Check that heat remains at a discharge pipe or condenser with the hands if leakage check is completed. If heat remains, the
cooling cycle is normal.
(Take care since a discharge pipe may be hot.)
Heavy Repair Method of Refrigerator by Application of Refrigerant
2-8. Failure Checking Procedures
Heavy Repair Method of Refrigerator by Application of Refrigerant
HTS55MT (190cc)
SPECIFICATION
SPECIFICATIONS
1
1. MODEL: GS9=
712
1790
4
912
912(W)*712(D)*1790(H)
13
ITEMS SPECIFICATIONS
ITEMS
CAPPILARY TUBE ID 0.7/ID 0.9
TEMPERATURE CONTROL 4~6 Hours
13-15 Hours
Heater,Sheath
HomeBar Heater
INSULATION
Driver starting type (Linear comp)
Fin tube type
EVAPORATOR
1W(1EA)/1.5W(1EA)
1.5W(1EA)
R600a (83g)
DIMENSIONS (mm)
NET WEIGHT (kg)
COOLING SYSTEM Fan Cooling
Micom Control
DEFROSTING SYSTE Full Automatic
Heater Defrost
Cyclo-Pentane
COMPRESSOR
CONDENSER AL Spiral Condenser
REFRIGERANT
LUBRICATING OIL
FIRST DEFROST
DRIER
DEFROST CYCLE
DEFROSTING DEVICE
ANTI SWEAT HEATER
REFRIGERATOR LAMP
FREEZER LAMP
MOLECULAR SIEVE XH-9
HEALTHGUARD
HEALTHGUARD
Cover PWB
1. MODEL: GS9=
SPECIFICATION
Automatic
Icemaker
Shelf
Lamp
Door rack
Door rack
Door rack
Door rack
Door rack
Drawer
Drawer
Vegetable drawer
Vegetable drawer
Shelf
V Fresh box
Drawer Cover
(Optional)
Drawer/Shelf
Drawer cover/Shelf
(Optional)
(Optional)
Drawer/Shelf
(Optional)
Refreshment center
(Optional)
Refreshment center (Optional)
Dairy corner
Lamp
Lamp
Shelf
Egg Box(Optional)
Filter (Optional)
No Plumbing Ice &
Water (Optional)
Pure N Fresh(Optional)
Extra
--
HOW TO INSTALL REFRIGERATOR
1. How to Adjust Door Height of Refrigerator.
Removing the hinge cover ,
E
E
HOW TO INSTALL REFRIGERATOR
-1-
Removing the hinge cover,and Main PCB
cover by loosening the screws.Separate
all connection wires except for the earth
line after. Main PCB cover
Upper hinge cover
Removing the hinge cover,and Main PCB
cover by loosening the screws.Separate
all connection wires except for the earth
line after.
Main PCB cover
Upper hinge cover
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19
MICOM ERROR CODE
Error Code Summary
When you check the Resistance values, be sure to turn o˜ the power.
And wait for the voltage discharge su°ciently.
E
E
E
E
E
E
E
E
E
E
E
$%1250$/
+80,',7<6(1625
HS (NOTES 1;
NOTES 2)
E
ROOM HUMIDITY SENSOR SHORT OR OPEN
NOTES2) NOT ALL MODEL HAS THIS ERROR CODE
PURE N FRESH
PURE N FRESH EU/AustraliaType 1
Type 2
Type 3
HEALTH GUARD Asia
HYGIENE FRESH MEA/CSA
Type-1 Type-2
2))
POWER
REPLACE
HOLD 5SECS
HEALTH GUARD
PURE N FRESH EU/AustraliaType 1
Type 2
Type 3
HEALTH GUARD Asia
HYGIENE FRESH MEA/CSA
(Optional)
kUkU
(F) (R1)
(R2)
(RT)
12 ߚ
䋳䕑ࠊᕵ
&203 ދޏᅸ )$1 ᴎẄᅸ )$1 䰸䳰 ࡴ⛁
఼亢䮼
ƻ ƻ ƻ ƻ ƻ
ƻ ƻ ƻ
ƻ ƻ
ƻ ƻ ƻ ƻ
ƻ ƻ
ƻ ƻ ƻ ƻ
ƻ
ƻ ƻ ƻ
ƻ ƻ ƻ ƻ
ƻ ƻ ƻ ƻ
ƻƻƻ ƻ ƻ
12
ƻ ƻ ƻ ƻ ƻ
ƻ ƻ ƻ
ƻ ƻ
ƻƻ
ƻ
ƻ ƻ ƻ
ƻ ƻ
ƻ ƻ ƻ ƻ
ƻ
ƻ ƻ ƻ ƻ
ƻ ƻ ƻ ƻ
ƻ ƻ ƻ ƻ
ƻƻƻ ƻ ƻ
--
MICOM failure mode diagnosis
(Defrost)
Sensor Layout:
Name Usage (Position)
Freezer Sensor Freezer temperature sensing
(upside)
Refrigerator temperature
sensing (right center)
Defrosting activiation/deacti-
vation temperature sensing
Refrigerator
sensor 1
Refrigerator
sensor 2
Defroster sensor
Refrigerator temperature
sensing (C/Box)
Temperature
sensor
Temperature check
(in R Hinge cover)
ʹ;
ͽΠΒΕʹΠΟΥΣΠΝ
ͷΣΖΖΫΖΣͷͲ ;ΠΠΞͷͲͿ
Ϳ
͵ΚΗΗΖΣΖΟΔΖΤ
͵ΖΗΣΠΤΥΙΖΒΥΖΣ
΄΅ͶͺͿ
;΅͵Ͳ;Ͷ
ͿΠΣΞΒΝ
ͲΓΟΠΣΞΒΝ
ΗΣΖΖΫΖΣ
΄ΖΟΤΠΣ
ͿΗΠΣ
ΞΚΟΦΥΖΤͷͷ
ΗΠΣΞΚΟΦΥΖΤ
ͿΗΠΣ
ΞΚΟΦΥΖΤͷͷ
ΗΠΣΞΚΟΦΥΖΤ
΄ΥΒΟΕΒΣΕ;
΄ΥΒΟΕΒΣΕ;
΄ΥΒΟΕΒΣΕ;
΄ΥΒΟΕΒΣΕ;
΄ΥΒΟΕΒΣΕ
ΠΡΖΣΒΥΚΟΘ
ͲΓΟΠΣΞΒΝ
ΣΖΗΣΚΘΖΣΒΥΠΣ
ΤΖΟΤΠΣ
ͲΓΟΠΣΞΒΝΣΖΗΣΚΘΖΣΒΥΠΣ
ΤΖΟΤΠΣ
ͲΓΟΠΣΞΒΝ
ΕΖΗΣΠΤΥΖΣ
ΤΖΟΤΠΣ
͵ΖΗΣΠΤΥΕΠΖΤΟΠΥ
ΨΠΣΜΓΒΔΜΥΠΟΠΣ
ΞΒΝΚΞΞΖΕΚΒΥΖΝΪ
ͲΓΟΠΣΞΒΝ
ΥΖΞΡΖΣΒΥΦΣΖ
ΤΖΟΤΠΣ
ͿΠΒΞΓΚΖΟΥ
ΥΖΞΡΖΣΒΥΦΣΖ
ΔΠΞΡΖΟΤΒΥΚΠΟ
ΠΠΣΕΖΗΣΠΤΥ
ͲΓΟΠΣΞΒΝ
ͲΓΟΠΣΞΒΝ
ΔΠΞΞΦΟΚΔΒΥΚΠΟ
ΠΗ;ΒΚΟʹͳ
ΗΣΖΖΫΖΣͳͽ͵ʹ
ͷͲͿΞΠΥΠΣ
ͲΓΟΠΣΞΒΝΞΖΔΙ
ΒΟΚΔΒΝΣΠΠΞ
ͳͽ͵ʹͷͲͿΞΠΥΠΣ
ͷͷ
ʹΙΖΔΜΒΗΥΖΣ
ΞΚΟΦΥΖΤ
ͷͷ
ʹΙΖΔΜΒΗΥΖΣ
ΞΚΟΦΥΖΤ
ͿΠΥΖلͿΠΣΞΒΝΠΡΖΣΒΥΚΠΟ
(RH)
(Ice make sensor)
Ice make sensor upper on F Door
Humidity seosor R Hinge Cover
Table of contents
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