LG GR-349SQF Service Manual

SAFETY PRECAUTIONS ....................................................................................................................................................... 2
SERVICING PRECAUTIONS.................................................................................................................................................. 3
SPECIFICATIONS................................................................................................................................................................... 4
PARTS IDENTIFICATION ....................................................................................................................................................... 5
REPLACEMENT OF DOOR OPENING TYPE ....................................................................................................................... 6
DISASSEMBLY.................................................................................................................................................................... 7-8
DOOR................................................................................................................................................................................... 7
DOOR SWITCH.................................................................................................................................................................... 7
FAN AND FAN MOTOR........................................................................................................................................................ 7
DEF' CONTROL ASM .......................................................................................................................................................... 8
LAMP.................................................................................................................................................................................... 8
ADJUSTMENT................................................................................................................................................................... 9-10
COMPRESSOR.................................................................................................................................................................... 9
PTC-STARTER..................................................................................................................................................................... 9
OLP (OVER LOAD PROTECTOR) .................................................................................................................................... 10
CIRCUIT DIAGRAM.............................................................................................................................................................. 10
TROUBLESHOOTING..................................................................................................................................................... 11-16
COMPRESSOR AND ELECTRIC COMPONENTS............................................................................................................ 11
PTC AND OLP.................................................................................................................................................................... 12
ANOTHER ELECTRIC COMPONENT............................................................................................................................... 13
SERVICE DIAGNOSIS CHART.......................................................................................................................................... 14
REFRIGERATING CYCLE ............................................................................................................................................ 15-16
MICOM FUNCTION & PCB CIRCUIT EXPLANATION ................................................................................................... 17-33
EXPLODED VIEW .......................................................................................................................................................... 34-35
REPLACEMENT PARTS LIST ............................................................................................................................................ 36-
Please read the following instructions before servicing your
refrigerator.
1. Check the set for electric losses.
2. Unplug prior to servcing to prevent electric shock.
3. Whenever testing with power on, wear rubber gloves to
prevent electric shock.
4. If you use any kind of appliance, check regular current,
voltage and capacity.
5. Don't touch metal products in the freezer with wet
hands. This may cause frostbite.
6. Prevent water from following onto electric elements in
the mechanical parts.
7. When standing up after having checked the lower
section of the refrigerator with the upper door open,
move with care to avoid hitting the upper door.
8. When tilting the set, remove any materials on the set,
especially the thin plates(ex. Glass shelf or books.)
9. When servicing the evaporator, wear cotton gloves.
This is to prevent injuries from the sharp evaporator
fins.
10. Leave the disassembly of the refrigerating cycle to a
specialized service center. The gas inside the circuit
may pollute the environment.
SAFETY PRECAUTIONS
CONTENTS
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LG GR-349SQF Specifications

General

Door hinge	Right
Product color	White
Appliance placement	Freestanding
Door open alarm	Yes
Total gross capacity	264 L
Annual energy consumption	460 kWh
Freezer gross capacity	86 L
Fridge net capacity	178 L
Package weight	74000 g

Weight and Dimensions

Depth	626 mm
Width	595 mm
Height	1710 mm
Weight	69000 g