LG GC-B207GLQV

Poor cooling in the
refrigerator compartment
Replace
Main PCB
Enter TEST 1 mode
Is the output voltage bet
ween pin5 and pin7 of
CON201 like as below?
Is the connection
loose ?(CON201)
No
Yes
Reconnect
Test Point Result
Pin5 To pin7 100~300 V
(AC)
Output voltage of Comp
Yes
Yes
Pin5
Pin7
N0
Test Point Result
pin12 To pin9 12 ~ 16 V
Freezer Fan voltage
Yes
Enter the TEST 1 MODE
Is voltage value between pins
9 & 12 of CON8 as below?
Replace
MAIN PCB
No
Yes
Is the feedback voltage
between pin 9 and pin10 of
CON8 like as below?
- 26 -- 26 -- 26 -(from motor to main board)
Test Point Result
Pin10 To pin9 1 ~ 4 V
Feedback voltage
Replace
MAIN PCB
Pin10 Pin9
Pin12 Pin9
- 47-