LG LRTN22310 - Manual (Page 2)

SAFETY PRECAUTIONS ....................................................................................................................................................... 2
SPECIFICATIONS................................................................................................................................................................... 3
PARTS IDENTIFICATION ....................................................................................................................................................... 4
DISASSEMBLY.................................................................................................................................................................... 5-6
DOOR................................................................................................................................................................................... 5
DOOR SWITCH.................................................................................................................................................................... 5
FAN AND FAN MOTOR........................................................................................................................................................ 6
DEFROST CONTROL ASSEMBLY...................................................................................................................................... 6
LAMP.................................................................................................................................................................................... 6
CONTROL BOX-REFRIGERATOR ...................................................................................................................................... 6
ADJUSTMENT..................................................................................................................................................................... 7-8
COMPRESSOR.................................................................................................................................................................... 7
PTC-STARTER..................................................................................................................................................................... 7
OLP (OVERLOAD PROTECTOR) ....................................................................................................................................... 8
TO REMOVE THE COVER PTC ...........................................................................................................................................8
CIRCUIT DIAGRAM................................................................................................................................................................ 9
TROUBLESHOOTING..................................................................................................................................................... 10-15
COMPRESSOR AND ELECTRICAL COMPONENTS ....................................................................................................... 10
PTC AND OLP .................................................................................................................................................................... 11
OTHER ELECTRICAL COMPONENTS ............................................................................................................................. 12
SERVICE DIAGNOSIS CHART.......................................................................................................................................... 13
REFRIGERATION CYCLE ............................................................................................................................................ 14-15
DESCRIPTION OF FUNCTION & CIRCUIT OF MICOM ............................................................................................... 16-25
EXPLODED VIEW & REPLACEMENT PARTS LIST ......................................................................................................... 26-
CONTENTS
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Please read the following instructions before servicing your
refrigerator.
1. Check the refrigerator for electrical faults.
2. To prevent electric shock, unplug before servicing.
3. Always check line voltage and amperage.
4. Use standard electrical components or cause your skin
to freeze and stick to the surfaces inside the freezer.
5. Don't touch metal products in the freezer with wet
hands. This may cause frostbite.
6. Prevent water from spiling onto electric elements or the
machine parts.
7. Close the top door before opening the bottom door.
Otherwise, you might hit your head when you stand up.
8. When tilting the refrigerator, remove any materials on
the refrigerator, especially the glass shelves and stored
food.
9. When servicing the evaporator, wear cotton gloves.
This is to prevent injuries from the sharp evaporator
fins.
10. Service on the refrigerator should be performed by a
qualified technician. Sealed system repair must be
performed by a CFC certified technician.
SAFETY PRECAUTIONS