LG LFXS30726 series - Replacing the Fresh Air Filter; Replacing the Water Filter

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SymptomCheck Point
1. E CO 1. Check the loose connection
2. Check the Hinge connection
Voltage [V]
CON101
1
st
pin ~ 2
nd
pin
12V
CON101
2
nd
pin ~ 3
rd
pin
Not 0V, 5V
CON101
2
nd
pin ~ 4
th
pin
Not 0V, 5V
CON5
4
th
pin ~ 6
th
pin
Not 0V, 5V
CON5
4
th
pin ~ 8
th
pin
Not 0V, 5V
CON5
CON7
CN1
CON201
CON2
CON1
CON3
CON5
CON6
CON101
8-12. Communication Error (E CO)