Samsung RT53 Service Manual page 37

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TROUBLESHOOTING
Self-Diagnosis Error Description
NO Blinking
Frequency
1 Twice
2 3 times
3 5 times
4 6 times
5 9 times
6 10 times
LED
Item
Connector Slipped-Out or Open-
F-DEF Contact, Wire Cut or Short-Circuited,
-SENSOR Abnormal Sensing Temp (higher than
+65℃ or lower than -50℃)
Connector Slipped-Out or Open-
Contact, Wire Cut or Short-Circuited,
EXT-SENSOR
Abnormal Sensing Temp (higher than
+65℃ or lower than -50℃)
[ Freezer Defrost Heater ]
Connector Slipped-Out or Open-
Contact, Wire Cut or Short-Circuited,
F-DEF-ERROR Defective Thermistor
Freezer Defrost When the defrosting
does not complete even after it does
defrosting for more than 120 minutes.
Connector Slipped-Out or Open-
Contact, Wire Cut or Short-Circuited,
R-SENSOR
Abnormal Sensing Temp (higher than
+65℃ or lower than -50℃)
PBA-Rotary Switch Slipped-Out or
Rotary Error Open-Contact, Wire Cut or Short-
Circuited,Switch Part Defect
Comp start The error code is displayed when the
failure error compressor has failed to start.
The error code is displayed when
Compressor
the compressor IPM fault error has
IPM Fault Error
occurred.
Comp location The error code is displayed when the
detection error compressor location detection failed.
Comp motor The error code is displayed when the
constraint error compressor motor is constrained.
Comp low The error code is displayed when the
voltage error AC Input Voltage is too low.
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Trouble Shooting
The voltage between MAIN PCB CN30
"4(RED) ↔ 7(Gray)" should be within
4.5V~0.5V.
The voltage between MAIN PCB CN31-
"1(WHT) ↔ 2(WHT)" should be within
4.5V~0.5V.
Remove the MAIN PCB CN70 and CN7
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 Heate
short and when it reads ∞ Ohm, chec
if the Wire/Thermal Fuse or the Bimeta
is Open.
The voltage between MAIN PCB CN30
"5(ORG) ↔ 7(Gray)" should be within
4.5V~0.5V.
The voltage between MAIN PCB CN30
"3(BRN)↔ 7(Gray)" should be within
4.5V~0.5V.
Check the soldering status of the
inverter PCB. (Check if any parts have
short-circuited). Check if the DC 16V
output is less than 13.5V. Check the
Comp and Cycle.
Check the compressor wire connections.
Check the soldering status of the inverter
PCB. (Check if any parts have short-
circuite d). Check the Comp and Cycle.
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.)
Check the input voltage. (This error
occurs when the input voltage is AC
106 V or lower.)
Check the input voltage. (This error