Samsung RF4287HARS Service Manual page 60

AW3 SM-EN 2011.3.31 2:55 PM 페이지61 in
TROUBLESHOOTING
Self-diagnostics check list
LED
F R
Item
Separation of fresh food compartment
defrost heater housing part, contact
error, disconnection, short circuit or
temperature fuse error.
FF-DEF Error
Display error : the defrosting does not
finish though fresh food compartment
defrost is heating continuously for more
than 80 minutes.
Display error when open error is
Flex Zone-Damper- detected by damper heater : separation
Heater Error of Damper Heater housing part, contact
error, disconnection, short circuit
Display error when open error is
Ice Maker(FF) detected by Heater : separation of Ice
Function Error Pipe Heater housing part, contact error,
disconnection, short circuit.
Display error when the Ice Maker(FZ) kit
operate moving ice over 3 times or it is
Ice Room-
FAN Error not leveled.
Display "41 - E" in the panel with alarm :
MICOM MAIN ↔ PANEL communication error.
Panel ↔ Main
Communication Error OP-Er is displayed when the Option is
not equivalent with the right value.
F
Trouble contents
After separating MAIN PCB CN70 wire from PCB,
resistance value between CN70 White ↔ CN70
Gray shall be 120(440) ohm± 7%.(Resistanc e
value is varied by input power)
0 ohm : heater short,
(Must power off)
After separating MAIN PCB CN77 wire from PCB,
resistance value between Black ↔ Brown wire
shall be 135 ohm± 7%.
0 ohm : heater short,
After changing the Ice Maker(R), plug the
refrigerator power code again, and check the
operation.
The voltage of MAIN PCB CN76-"2"(Black) ↔
CN76-"1" (Gray): shall be between 7V~12V
Actually, If there is not a problem, it is desirable
to replace Main and Panel PCB With the
oscilloscope after a cable problem confirming.
R
61
Diagnostic method
∞
ohm : wire/bimetal open
∞ Ohm : wire / bimetal Open.