4-9) When Self-Diagnosis Error Occurs - Samsung RR39M7 Series Service Manual

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4-9) When Self-Diagnosis Error occurs

- 2 BOARD
- The Display Panel shows the Sensor Error and, when the unit is plugged in and there are sensor errors, the unit does not operate
and LED related to the defective sensors keep blinking.
- When sensor defects occur during the operation, the unit keeps working. But, it shifts to the Emergency Operation and it may
not work properly. So, please check the unit according to the Self Diagnosis function.
1) When the R-Sensor is defective
ERROR CODE
Fridge model
Freezer, Kimchi model
DATA1. Temp Table
** Sensor Resistance Reading
Location **
R : Between CN31 #5 and #6
** 0Ω : Short / ∞Ω : Open
Refer to Circuit Diagram
Sensor MICOM/Connector #
Between Connector CN31-
R
"5"(WHT) and CN31-"6"(WHT)
Voltage : Between 4.6V ~ 0.6V
Voltage at IC10 MICOM #53 is the
same as the value between CN31-
"5"(WHT) and CN31-"6"(WHT)
Start
MAIN PCB Connector CN31 is
inserted properly?
Yes
R Sensor is
normal?
Yes
Voltage between MAIN PCB
Connector CN31-"5"(WHT)
and CN31-"6"(WHT)?
Yes
Input Voltage at IC10
MICOM Pin #53 is normal?
Yes
PCB and Temp Sensor are normal.
Check the connector contact.
72
No
Connector contact defect /
Reconnect
No
Replace Temp Sensor
No NO (0.6V > Value or Value > 4.6V)
Check the wire connection
No
Check Soldering Defect & Short