LG LFX23961 Series - Temperature and Moisture Buildup

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To measure putput of the fans on the control board check voltages between the pins for the following components:
Freezing compartment fan Con4 Pin1 Con4 Pin2 13 VDC - 15 VDC 2 VDC or less
Machine compartment fan Con4 Pin7 Con4 Pin8 13 VDC - 15 VDC 2 VDC or less
Icing compartment fan Con4 Pin4 Con4 Pin5 13 VDC - 15 VDC 2 VDC or less
FAN
PIN NUMBER PIN NUMBER
MOTOR ON
MOTOR OFF
OUTPUT VOLTAGE
3. Open Door Detection Circuit Check
Closed 5 V
Open 0 V
Freezer/
Refrigerator Door
Measurement
Location
Pin 10 & 11 of con4 Ref.Door
Pin 5 & 6 of con6 Fre.Door