Samsung RF265AB Service Manual page 44

TROUBLESHOOTING
Self-diagnostics check list
LED Item
R-1- Ice Maker Sensor Error
R-1- R-Sensor Error
R-1- R-DEF-Sensor Error
R-1- R-FAN Error
R-1- Ice Maker Error
R-1- R-DEF. Error
F-1- Ambient-Sensor Error
F-1- F-Sensor Error
F-1- DEF-Sensor Error
F-1- F-FAN Error
F-1- C-FAN Error
F-1- F-DEF. Error
R-10- Pantry-Damper-Heater Error
R-10- Pantry-Sensor Error
F-10- Panel Main communication Error
F-10- Load Main communication Error
Trouble contents
Display error : separation of sensor housing
part, contact error, disconnection, short
circuit
Display error of detecting temperature of
sensor: more than 149 (+65°C) or less
than -58 (-50°C)
Display error during operation of applicable
fan motor : Feed Back signal line contact
error, separation of motor wire, motor error
Display error : ice making kit is harvested
more than 3 times and level error
** Apply to the applicable Ice Maker model.
Display error : separation of fresh food compartment defrost heater housing
part, contact error, disconnection, short circuit or temperature fuse error.
Display error : the defrosting does not finish though fresh food compartment
defrost is heating continuously for more than 80 minutes.
Display error : sensor housing separation,
contact error, disconnection, short circuit
Display error by detecting temperature of
sensor: more than 149 (+65°C) or less
than -58 (-50°C)
Display error during operation of applicable
fan motor : Feed Back signal line contact
error, motor wire separation, motor error
Display error during operation of applicable
fan motor : Feed Back signal line contact
error, motor wire separation, motor error
Display error : separation of freezer compartment defrost heater housing
part , contact error, disconnection, short circuit or temperature fuse error.
Display error : the defrosting does not finish though fresh food compartment
compartment defrost is heating continuously for more than 70 minutes.
Display error when open error is detected by damper
heater : separation of Damper Heater housing part,
contact error, disconnection, short circuit
Display error : separation of sensor housing, contact error,
disconnection, short circuit.
Display error by detecting temperature of sensor: more
than 149 (+65°C) or less than -58 (-50°C)
Display "oP/LC-Er" in the panel with alarm :
MICOM MAIN LOAD communication error
MICOM MAIN PANEL communication error
LC-Er is displayed when the Option is not
equivalent with the right value
45
Diagnostic method
When checking the voltage of MAIN PCB CN90
#3 CN90#4 : should be between 4.5V~1.0V.
When checking the voltage of MAIN PCB
CN30#6 CN75#1:should be between 4.5V~1.0V
When checking the voltage of MAIN PCB
CN30#7 CN75#:should be between 4.5V~1.0V
Voltage of MAIN PCB CN75 Orange
should be between 7V~12V
After replacing ice maker, check the operation
by turning the appliance ON again.
After separating MAIN PCB CN70,CN71 from PCB, check the
resistance value between CN70 White CN71 Orange should be
102(441) ohm 7%. (resistance value is varied by the input power)
Check 0 Ohm : heater short, Ohm : wire / bimetal Open.
When checking the voltage of MAIN PCB
CN32#1 #4 : should be between 4.5V~1.0V.
When checking the voltage of MAIN PCB
CN30#3 CN75#1:should be between 4.5V~1.0V
When check the voltage of MAIN PCB
CN30#4 CN75#1:should be between 4.5V~1.0V
Voltage of MAIN PCB CN75 Yellow
should be between 7V~12V.
Voltage of MAIN PCB CN75 Sky-blue
should be between 7V~12V.
After separating MAIN PCB CN70,CN71 from PCB, check the
resistance value between CN70 brown
102(220) ohm 7%. (Resistant value is varied by input power)
Check 0 Ohm : heater short, Ohm : wire / bimetal Open.
After separating MAIN PCB CN91from PCB, check the
resistance value between Black brown wire should be 145
ohm 7%. Check 0 Ohm : heater short,
Open.
When checking the voltage of MAIN PCB
CN30#8 #9 : should be between 4.5V~1.0V.
Actually, it is desirable to recheck the condition with
the oscilloscope(1G Hz) after replacing Main and
Panel PCB.
Gray
Gray
Gray
CN71 Orange should be
Ohm : wire / bimetal