Samsung RF18A Series Service Manual page 70

CHECK THE INSTALLATION STATUS
* Self-diagnosis CHECK LIST
LED
F R
Fridge Fan Error
Freezer Defrosting Error
Fridge DefrostingError
Ice Maker (Freezer)
Freezer Ice Pipe
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Item Diagnostic method
Freezer Fan The voltage of MAIN PCB CN51-"17" ↔
Error "19" : shall be between 7V~12V
The voltage of MAIN PCB CN51-"18" ↔
"20" : shall be between 7V~12V
The voltage of MAIN PCB CN51-"23" ↔
C-Fan Error
"25" : shall be between 7V~12V
After separating MAIN PCB CN70 wire
from PCB, resistance value between
CN70-"3" ↔ "1" shall be 63(230) ohm
+8%.
(Resistance value is varied by input
power.)
0 ohm : heater short
∞ ohm : wire/bimetal open (Must power
off)
After separating MAIN PCB 70 wire from
PCB, resistance value between CN70-"5"
↔"1" shall be 132 ohm ± 7%. (Resistance
value is varied by input power.)
0 ohm : heater short
∞ ohm : wire/bimetal open (Must power
off)
After changing the Ice Maker(F), plug
Function Error the refrigerator power code again, and
(OPTION) check the operation.
After separating MAIN PCB CN30 wire
from PCB, resistance value between
CN30-"5" ↔ "7" shall be 63(230) ohm ±
Heater Error 7%.
(OPTION) (Resistance value is varied by input
power) 0 ohm : heater short, ∞ ohm :
wire/bimetal open (Must power off)
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