Refrigerator Service Guide

51
󳀌 Self-diagnostics check list
TROUBLESHOOTING
LED
R-1-ⓐ
R-1-ⓑ
R-1-ⓒ
R-1-ⓓ
R-1-ⓔ
R-1-ⓖ
F-1-ⓐ
F-1-ⓑ
F-1-ⓒ
F-1-ⓓ
F-1-ⓔ
F-1-ⓕ
F-1-ⓖ
F-10-ⓑ
R-10-ⓐ
R-10-ⓑ
R-10-ⓖ
F-10-ⓖ
Item
Ice Maker Sensor Error
R-Sensor Error
R-DEF-Sensor Error
R-FAN Error
Ice Maker Error
R-DEF. Error
Ambient-Sensor Error
F-Sensor Error
DEF-Sensor Error
F-FAN Error
C-FAN Error
Ice Room Sensor Error
F-DEF. Error
Ice Room-FAN Error
Pantry-Damper-Heater Error
Pantry-Sensor Error
Water Tank-Heater Error
Panel↔Main communication Error
Trouble contents
Diagnostic method
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 : 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 "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
Actually, it is desirable to recheck the condition with
the oscilloscope(1G Hz) after replacing Main and
Panel PCB.
When checking the voltage of MAIN PCB CN90
#8↔CN90#4 : should be between 4.5V~1.0V.
When checking the voltage of MAIN PCB
CN30#6↔CN76#1: should be between 4.5V~1.0V
When checking the voltage of MAIN PCB
CN30#8↔CN76#1 : should be between 4.5V~1.0V
Voltage of MAIN PCB CN76#4(Orange) ↔
CN76#1(Gray) should be between 7V~12V
After replacing ice maker, check the operation
by turning the appliance ON again.
When checking the voltage of MAIN PCB
CN31#1↔#4 : should be between 4.5V~1.0V.
When checking the voltage of MAIN PCB
CN30#3↔CN76#1: should be between 4.5V~1.0V
When check the voltage of MAIN PCB
CN30#4↔CN76#1: should be between 4.5V~1.0V
Voltage of MAIN PCB CN76#3(Yellow)↔
CN76#1(Gray) should be between 7V~12V.
Voltage of MAIN PCB CN76#5(SkyBlue) ↔
CN76#1(Gray) should be between 7V~12V.
When check the voltage of MAIN PCB
CN31#3 ↔ CN76#1: should be between 4.5V~1.0V
When checking the voltage of MAIN PCB
CN30#9 ↔ CN76#1 : should be between 4.5V~1.0V.
After separating MAIN PCB CN79 from PCB, check the resistance
value between Black
↔ brown wire should be 72 ohm 7%.
Check 0 Ohm : heater short,
∞ Ohm : wire / bimetal Open.
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.
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.
After separating MAIN PCB CN70,CN71 from PCB, check the
resistance value between CN70 brown ↔ CN71 Orange should be
55(115v)ohm ± 7%. (resistance 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, ∞ Ohm : wire / bimetal Open.
Voltage of MAIN PCB CN76#2(Black) ↔
CN75 : should be between 6V~12V.
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 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 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 : 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 when open error is detected by damper
heater : separation of Damper Heater housing part,
contact error, disconnection, short circuit
Display error during operation of applicable fan motor :
Feed Back signal line contact error, motor wire separation,
motor error
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 error when open error is detected by Water Tank
Heater : separation of Water Tank Heater housing
part,contact error, disconnection, short circuit
AW-SEM Transform(RF267,2#3957D8 2009.8.20 4:53 PM 페 이 지 5 1 i n