Samsung RB37A52N0SA [48/101] Troubleshooting
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Samsung RB37A52N0SA [48/101] Troubleshooting

Samsung RB37A52N0SA [48/101] Troubleshooting
48
4. TROUBLESHOOTING
※ Self-Diagnosis Error Description
NO Error Code Item Description Trouble Shooting
1
F-DEF ERROR
[ Freezer Defrost Heater ]
Connector Slipped-Out or Open-Contact, Wire Cut or
Short-Circuited, Defective Thermistor [Fridge Defrost]
When the defrosting does not complete even after it
does defrosting for more than 120 minutes.
Remove the MAIN PCB CN70 and CN77 connectors
from the MAIN PCB and read the continuity between
BROWN ↔ ORG wires.
(It differs according to the energy consumption.)
When it reads 0 Ohm, check the Heater short and
when it reads ∞ Ohm, check if the Wire/Thermal Fuse
or the Bimetal is Open.
2
EXT - SENSOR
Connector Slipped-Out or Open-Contact, Wire Cut or
Short-Circuited, Abnormal Sensing Temp
(higher than +65℃ or lower than -50℃)
The voltage between MAIN PCB CN30-"2(WHT) ↔
1(WHT)" should be within 4.5V~0.5V
3
F-SENSOR
Connector Slipped-Out or Open-Contact, Wire Cut or
Short-Circuited, Abnormal Sensing Temp
(higher than +65℃ or lower than -50℃)
The voltage between MAIN PCB CN30-"3(GRN) ↔
1(WHT)" should be within 4.5V~0.5V
4
R-SENSOR Same as the EXT - SENSOR
The voltage between MAIN PCB CN30-"5(BLU) ↔
1(WHT)" should be within 4.5V~0.5V
5
F - DEF -
SENSOR
Same as the EXT - SENSOR
The voltage between MAIN PCB CN30-"4(YEL) ↔
1(WHT)" should be within 4.5V~0.5V
6
Vacation
LED Lad
R-DEF-SENSOR
Same as the EXT - SENSOR
The voltage between MAIN PCB CN30-"4(YEL) ↔
1(WHT)" should be within 4.5V~0.5V
7
F-FAN ERROR
Same as the EXT-Sensor
The voltage between MAIN PCB CN30-"6(RED) ↔
7(Gray)" should be within 4.5V~0.5
8
C-FAN ERROR
When the related Fan Motor operates, it occurs if the
contact of the Feed Back Signal Wire is defective, the
Motor Wire is slipped out or the Motor is defective.
The voltage between MAIN PCB CN75-"2(BLU) ↔
1(GRY)" should be within 7V~12V
9
Power
Freeze LED
LAMP
R-FAN ERROR
When the related Fan Motor operates, it occurs if the contact
of the Feed Back Signal Wire is defective, the Motor Wire is
slipped out or the Motor is defective.
The voltage between MAIN PCB CN75-"3(ORG) ↔
1(GRY)" should be within 6V~12V
10
Comp start failure
error
The error code is displayed when the compressor has
failed to start.
Check the soldering status of the inverter PCB.
(Check if any parts have short-circuited).
Check if the DC 16V output is less than 1 3.5V.
Check the Comp and Cycle.
Compressor IPM
Fault Error
The error code is displayed when the compressor IPM
fault error has occurred.
Comp location
detection error
The error code is displayed when the compressor
location detection failed.
Check the compressor wire connections.
Check the soldering status of the inverter PCB.
(Check if any parts have short-circuited).
Check the Comp and Cycle.
Comp motor
constraint error
The error code is displayed when the compressor
motor is constrained.
Check if the compressor and the Cycle is normal.
Check the input voltage.
Check the soldering of the inverter PCB.
(Check if any parts have short-circuited.)
Comp low voltage
error
The error code is displayed when the AC Input
Voltage is too low.
Check the input voltage. (This error occurs when the
input voltage is AC 106 V or lower.)
Comp over
voltage error
The error code is displayed when the AC Input
Voltage is too high.
Check the input voltage.
(This error occurs when the input voltage is AC 310V
or higher.)

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