LG LFC21776ST Service Manual

CONTENTS
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SAFETY PRECAUTIONS
Please read the following instructions before servicing your refrigerator.
1. Unplug the power before handling any elctrical componets.
2. Check the rated current, voltage, and capacity.
3. Take caution not to get water near any electrical components.
4. Use exact replacement parts.
5. Remove any objects from the top prior to tilting the product.
SAFETY PRECAUTIONS ....................................................................................................................................................... 2
SPECIFICATIONS ................................................................................................................................................................... 3
PARTS IDENTIFICATION ....................................................................................................................................................... 4
DISASSEMBLY .................................................................................................................................................................. 5-10
DOOR ............................................................................................................................................................................... 5-6
DOOR ALIGNMENT ............................................................................................................................................................. 6
HOW TO REMOVE AND REINSTALL THE PULLOUT DRAWER ................................................................................... 7-9
ADJUSTMENT ................................................................................................................................................................. 10-11
COMPRESSOR ................................................................................................................................................................. 10
PTC-STARTER .................................................................................................................................................................. 10
OLP (OVERLOAD PROTECTOR) ..................................................................................................................................... 11
TO REMOVE THE COVER PTC ........................................................................................................................................ 11
CIRCUIT DIAGRAM .............................................................................................................................................................. 12
TROUBLESHOOTING ..................................................................................................................................................... 13-17
COMPRESSOR AND ELECTRIC COMPONENTS ........................................................................................................... 13
OTHER ELECTRICAL COMPONENTS...............................................................................................................................14
SERVICE DIAGNOSIS CHART ......................................................................................................................................... 15
REFRIGERATION CYCLE ............................................................................................................................................ 16-17
ICE MAKER AND DISPENSER WORKING PRINCILLES AND REPAIR ........................................................................18-21
DESCRIPTION OF FUNCTION & CIRCUIT OF MICOM ................................................................................................. 22-35
EXPLODED VIEW & REPLACEMENT PARTS LIST ...................................................................................................... 36-40

LG LFC21776ST Specifications

General

Type	freestanding
Style	french door
Color	stainless steel
Refrigerator Capacity	20.7 cubic feet
Freezer Capacity	6 cubic feet
Humidity Controlled Crispers	yes
Defrost System	manual
Quick Freeze	no
Number of Refrigerator Door Bins	yes
Temperature Control	digital
Interior Light	led
Ice Maker	yes
Water Filter	no
Door Alarm	yes
Smart Home	no
Annual Energy Consumption	400 kilowatt hours
Voltage	120 volts

Weight and Dimensions

Depth	30 inches
Height	69.75 inches
Width	35.75 inches
Net Weight	278 pounds