LG GC-B207GLQV

ENTER the TEST 2 MODE
Is the voltage value betwee
n pins 7 (BN) & 9 (BL/WH) o
f CON4 220~240V AC ?
Replace
MAIN PCB
Yes
No
No
Yes
Test Ponit Result
Pin7 To Pin9 220~240V
Defrost Heater Error
Wiring diagram
Relay Operation
Yes
Reconnect
Pin7Pin9
Main
PCB
BN
BL/WH
FUSE-M
CON4
7
9
DEF-Heater
Housing-A
BO
D-Sensor
21
22
BO
3
CON8
BO
BO
2
1
BN
BL
1
2
4
3
4
FUSE-M
Is it displayed under picture?
Is the connection loose ?(CON4)
ENTER the Normal MODE
Is the voltage value between
pins 7 (BN) & 9 (BL/WH) of
CON4 0V AC ?
No
Yes
Relay operation
Test Point Result
Pin7 To Pin9 0V
Replace
MAIN PCB
Pin7Pin9
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