Board - Samsung RR39M7 Series Service Manual

TROUBLESHOOTING

- 2 BOARD

Self-Diagnosis Error Code Description
NO Error Code Item
Room Sensor
1
Error
Defrost Sensor
2
Error
EXT-SENSOR
3
Error
4 Fan Error
5 C Fan
6 R-DEF-ERROR
Abnormal High
7 Temperature
error
Description
Slipped out Sensor Housing,
Wire-Cut, Wire-Short, When
the sensor pickup temp is
over +65℃/149‎ ° F or under
-50℃/-58°F, Error occurs.
When the pertinent Fan
Motor works, the failure is
displayed when the failure
is the Feed Back Signal Line
contact error, separation
of the Motor Wire, or the
failure of the Motor itself.
It occurs when the failure is
the separation of the Hous-
ing related to the F Com-
partment Defrost Heater,
contact error, disconnection,
short circuit, or the failure of
Temperature Fuse.
The failure is displayed
when defrosting of the F
Compartment does not end
even after nonstop heating
for 150 minutes or longer.
The Fridge Display blinks
when the Fridge tempera-
ture goes up abnormally or
the Fridge Door is opened
for a certain period of time
while the Refrigerator tem-
perature is high.
Trouble Shooting
Voltage between MAIN PCB CN30
#5 AND #6 should be within
4.5V~1.0V.
Voltage between MAIN PCB CN31
#7 AND #8 should be within
4.5V~1.0V.
Voltage between MAIN PCB CN31
#3 AND #4 should be within
4.5V~1.0V.
The voltage between MAIN PCB
CN31 #10 ↔ #11 should be within
7V~12V
The voltage between MAIN PCB
CN30 #2 ↔ #3 should be within
7V~12V
The voltage between MAIN PCB
CN31 #7 AND #8 should be within
4.5V~0.5V
Check if the Door is opened for a
long time or hot foods are kept.
Remove the cause, and it will disap-
pear in a certain period of time.
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