LG GR-P227 User manual
CAUTION
PLEASE READ CAREFULLY THE SAFETY PRECAUTIONS OF THIS BOOK
BEFORE CHECKING OR OPERATING THE REFRIGERATOR.
REFRIGERATOR
SERVICE MANUAL
MODEL: GR-P227/L227
COLOR: TITANIUM
http://eic.lgservice.com
GR-P257/L257
WARNINGS AND PRECAUTIONS FOR SAFETY ................................................................................................................ 3
SPECIFICATIONS................................................................................................................................................................... 4
PARTS IDENTIFICATION ....................................................................................................................................................... 6
HOW TO INSTALL THE REFRIGERATOR .......................................................................................................................... 10
HOW TO ADJUST DOOR HEIGHT OF THE REFRIGERATOR ........................................................................................ 10
HOW TO INSTALL WATER PIPE ........................................................................................................................................11
HOW TO CONTROL THE AMOUNT OF WATER SUPPLIED TO THE ICEMAKER ......................................................... 15
MICOM FUNCTION .............................................................................................................................................................. 16
EXPLATION FOR MICOM CIRCUIT..................................................................................................................................... 26
EXPLANATION FOR PWB CIRCUIT ..................................................................................................................................26
ICE MAKER AND DISPENSER OPERATION PRINCIPLE AND REPAIR METHOD.......................................................... 41
OPERATION PRINCIPLE....................................................................................................................................................41
ICEMAKER FUNCTIONS....................................................................................................................................................42
DEFECT DIAGNOSIS FUNCTION......................................................................................................................................43
CIRCUIT................................................................................................................................................................................ 44
TROUBLE DIAGNOSIS........................................................................................................................................................ 45
TROUBLE SHOOTING ...................................................................................................................................................... 45
FAULTS .............................................................................................................................................................................. 55
COOLING CYCLE HEAVY REPAIR ................................................................................................................................... 72
HOW TO DEAL WITH CLAIMS.......................................................................................................................................... 79
HOW TO DISASSEMBLE AND ASSEMBLE....................................................................................................................... 84
DOOR................................................................................................................................................................................. 84
HANDLE ............................................................................................................................................................................. 85
SHROUD, GRILLE FAN ..................................................................................................................................................... 85
WATER VALVE DISASSEMBLY METHOD ........................................................................................................................ 86
FAN AND FAN MOTOR DISASSEMBLY METHOD ........................................................................................................... 86
DISPENSER....................................................................................................................................................................... 87
EXPLODED VIEW ................................................................................................................................................................ 89
CONTENTS
- 2 -
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
- 3 -
SPECIFICATIONS
- 4 -
ITEMS SPECIFICATIONS
DIMENSIONS (mm) 894(W)
X
790(D)
X
1753(H)
NET WEIGHT (kg) 132
COOLING SYSTEM Fan Cooling
TEMPERATURE CONTROL Micom Control
DEFROSTING SYSTEM Full Automatic
Heater Defrost
INSULATION Cyclo-Pentane
COMPRESSOR P.T.C. Starting Type
EVAPORATOR Fin Tube Type
CONDENSER Wire Condenser
REFRIGERANT R134a (180g)
LUBRICATING OIL FREOL @10G (310 cc)
CAPILLARY TUBE ID 0.83
DRIER MOLECULAR SIEVE XH-7
1753
602
948
894
662
711
790
1135.5
<Front View> <Plane View>
1. Ref No. : GR-P227
ITEMS SPECIFICATIONS
FIRST DEFROST 4 - 5 Hours
DEFROST CYCLE 13 - 15 Hours
DEFROSTING DEVICE Heater, Sheath
ANTI SWEAT HEATER Dispenser Duct Door Heater
Dispenser Heater
Home Bar Heater
ANTI-FREEZING HEATER Damper Heater
FREEZER LAMP 40W (1 EA)
REFRIGERATOR LAMP 40W (1 EA) / 30W (1 EA)
SPECIFICATIONS
- 5 -
ITEMS SPECIFICATIONS
DIMENSIONS (mm) 894(W)
X
790(D)
X
1753(H)
NET WEIGHT (kg) 132
COOLING SYSTEM Fan Cooling
TEMPERATURE CONTROL Micom Control
DEFROSTING SYSTEM Full Automatic
Heater Defrost
INSULATION Cyclo-Pentane
COMPRESSOR P.T.C. Starting Type
EVAPORATOR Fin Tube Type
CONDENSER Wire Condenser
REFRIGERANT R134a (180g)
LUBRICATING OIL FREOL @10G (310 cc)
CAPILLARY TUBE ID 0.83
602
948
894
662
711
790
1135.5
1753
<Front View> <Plane View>
2. Ref No. : GR-L227
ITEMS SPECIFICATIONS
DRIER MOLECULAR SIEVE XH-7
FIRST DEFROST 4 - 5 Hours
DEFROST CYCLE 13 - 15 Hours
DEFROSTING DEVICE Heater, Sheath
ANTI SWEAT HEATER Dispenser Duct Door Heater
Dispenser Heater
ANTI-FREEZING HEATER Damper Heater
FREEZER LAMP 40W (1 EA)
REFRIGERATOR LAMP 40W (1 EA) / 30W (1 EA)
SPECIFICATIONS
- 4 -
ITEMS SPECIFICATIONS
DIMENSIONS (mm) 894(W)
X
875(D)
X
1753(H)
NET WEIGHT (kg) 132
COOLING SYSTEM Fan Cooling
TEMPERATURE CONTROL Micom Control
DEFROSTING SYSTEM Full Automatic
Heater Defrost
INSULATION Cyclo-Pentane
COMPRESSOR P.T.C. Starting Type
EVAPORATOR Fin Tube Type
CONDENSER Wire Condenser
REFRIGERANT R134a (180g)
LUBRICATING OIL FREOL @10G (310 cc)
CAPILLARY TUBE ID 0.83
DRIER MOLECULAR SIEVE XH-7
1753
<Front View> <Plane View>
1. Ref No. : GR-P257
ITEMS SPECIFICATIONS
FIRST DEFROST 4 - 5 Hours
DEFROST CYCLE 13 - 15 Hours
DEFROSTING DEVICE Heater, Sheath
ANTI SWEAT HEATER Dispenser Duct Door Heater
Dispenser Heater
Home Bar Heater
ANTI-FREEZING HEATER Damper Heater
FREEZER LAMP 40W (1 EA)
REFRIGERATOR LAMP 40W (1 EA) / 30W (1 EA)
687
948
894
747
796
875
1220.5
SPECIFICATIONS
- 5 -
ITEMS SPECIFICATIONS
DIMENSIONS (mm) 894(W)
X
875(D)
X
1753(H)
NET WEIGHT (kg) 132
COOLING SYSTEM Fan Cooling
TEMPERATURE CONTROL Micom Control
DEFROSTING SYSTEM Full Automatic
Heater Defrost
INSULATION Cyclo-Pentane
COMPRESSOR P.T.C. Starting Type
EVAPORATOR Fin Tube Type
CONDENSER Wire Condenser
REFRIGERANT R134a (180g)
LUBRICATING OIL FREOL @10G (310 cc)
CAPILLARY TUBE ID 0.83
1753
<Front View> <Plane View>
2. Ref No. : GR-L257
ITEMS SPECIFICATIONS
DRIER MOLECULAR SIEVE XH-7
FIRST DEFROST 4 - 5 Hours
DEFROST CYCLE 13 - 15 Hours
DEFROSTING DEVICE Heater, Sheath
ANTI SWEAT HEATER Dispenser Duct Door Heater
Dispenser Heater
ANTI-FREEZING HEATER Damper Heater
FREEZER LAMP 40W (1 EA)
REFRIGERATOR LAMP 40W (1 EA) / 30W (1 EA)
687
948
894
747
796
875
1220.5
PARTS IDENTIFICATION
- 6 -
Freezer
compartment
Refrigerator
compartment
Automatic Icemaker
Lamp
Shelf
Shelf
Door rack
Drawer
Drawer
Door rack
Lower cover
Milk product corner
Lamp
Shelf
Refreshment center(Optional)
Can Server
(Optional)
Shelf (Folding or Normal)
Wine holder
(Plastic or wire)
Egg Box
Vegetable Drawer
Humidity Switch
Door Rack
Door Rack
Miracle Zone (Optional)
Fresh compartment
(Optional)
Conversion switch
(Meats/Vegetables)
(Optional)
Cover PWB
Water Tube
Home Bar
Frame Display
Dispenser Lamp
Ice & Water
Dispenser Button
1. Ref No. : GR-P227/GR-P257 (INTERNAL FILTER)
2. Ref No. : GR-P227/GR-P257 (EXTERNAL FILTER)
PARTS IDENTIFICATION
- 7 -
Freezer
compartment
Refrigerator
compartment
Automatic Icemaker
Lamp
Shelf
Shelf
Door rack
Drawer
Drawer
Door rack
Lower cover
Milk product corner
Lamp
Shelf
Refreshment center(Optional)
Can Server
(Optional)
Shelf (Folding or Normal)
Wine holder
(Plastic or wire)
Egg Box
Vegetable Drawer
Humidity Switch
Door Rack
Door Rack
Miracle Zone (Optional)
Fresh compartment
(Optional)
Conversion switch
(Meats/Vegetables)
(Optional)
Cover PWB
Home Bar
Frame Display
Dispenser Lamp
Ice & Water
Dispenser Button
PARTS IDENTIFICATION
- 8 -
Freezer
compartment
Refrigerator
compartment
Automatic Icemaker
Lamp
Shelf
Shelf
Door rack
Drawer
Drawer
Door rack
Lower cover
Milk product corner
Lamp
Shelf
Refreshment center(Optional)
Can Server
(Optional)
Shelf (Folding or Normal)
Wine holder
(Plastic or wire)
Egg Box
Vegetable Drawer
Humidity Switch
Door Rack
Door Rack
Miracle Zone (Optional)
Fresh compartment
(Optional)
Conversion switch
(Meats/Vegetables)
(Optional)
Cover PWB
Water Tube
Frame Display
Dispenser Lamp
Ice & Water
Dispenser Button
3. Ref No. : GR-P227/GR-P257 (INTERNAL FILTER)
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