LG LBC20514TT Service Manual page 21

8-1-9 Defect Diagnosis Function
1. Automatic diagnosis makes servicing the refrigerator easy.
2. When a defect occurs, the buttons will not operate; but the tones. such as ding. will sound.
3. When the defect CODE removes the sign, it returns to normal operation (RESET).
4. The defect CODE shows on the Refrigerator and Freezer Display.
ERROR CODE on display panel
NO ITEM
Failure of freezer
1
sensor
Failure of
2
Refrigerator sensor
Failure of defrost
3
sensor
4 Poor of defrost
Failure of BLDC fan
5
motor at freezing
compartment
LED OFF LED ON
ERROR CODE
All off
All off
All off
All off
All off
CONTENTS
Cut or short circuit wire
Cut or short circuit wire
Cut or short circuit wire
2 hours later after
starting defrost, If
sensor doesn't be
over 46ºF (8ºC)
If there is no fan motor
signal, for more than
65 seg. in operation
fan motor.
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REMARKS
Inspect Connecting
wires on each sensor
Snapping of defrost
heater or Temperature
fuse, pull-out of
Connector (indicated
minimum 2 Hours
after failure occurs)
Poor motor, hocking to
wires of fan, contact of
structures to fan,
snapping or short of lead