LG LFC20770SB Service Manual page 76

9) Water Condensation on Refrigerator Pillar.
No Checking flow
1-. Reset the refrigerator (unplug
1
powercord, wait 10 seconds, plug
powercord.
2-. Wait until Compressor operates.
3-. Check the voltage between brown
and blue wires on CON3.
1-. Remove Cover Hinge of
2
refrigerator door (left).
2-. Check for loose connection.
Check Voltage between brown and
3
blue wires.
Result & SVC Action
Result
110~120VAC
0~10VAC
Result
Loose Connection
Firmly connected
Result
110~120VAC
0~10VAC
- 75 -
SVC Action
Go to step #2
Replace Main PCB.
SVC Action
Plug correctly, check again
Go to step #3
SVC Action
Go to step #4
Replace Refrigerator Unit.