Samsung SR-646EV - Refrigerator’ S Defrosting Sensor Failure; F1, Freezer Temp. Sensor Failure

Samsung Electronics 23
3) Refrigerator’ s defrosting sensor failure
4) F1, Freezer temp. sensor failure
Is main PCB connection
(CON03) O.K. ?
Is temp. sensor O.K.
Is connection of temp.
sensor O.K.
Is input vltg of CON 03
pin1 O.K.
Change main PCB ass’ y
Connection failure
Change sensor
Connection failure
Wire open
Start
N
Y
N
Y
N
Y
N
Y
Is main PCB connection
(CON 5) O.K. ?
Is defrosting sensor O.K.
Is connection of defrosting
sensor O.K.
Is input vltg of CON 03
pin4 O.K.
Change main PCB ass’ y
Connection failure
Change sensor
Connection failure
Wire open
Start
N
Y
N
Y
N
Y
N
Y