75
TROUBLESHOOTING
- 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
MAIN PCB Connector CN30 is
inserted properly?
R Sensor is normal?
Voltage between MAIN PCB
Voltage between MAIN PCB
Connector CN30-"13"(WHT) and
Connector CN30-"13"(WHT) and
CN30-"15"(WHT) is normal?
CN30-"15"(WHT) is normal?
Input Voltage at MIC01
MICOM Pin #7 is normal?
Start
PCB and Temp Sensor are normal.
Check the connector contact.
Connector contact defect / Reconnect
Replace the Temp Sensor.
Check the wire connection.
Check the Soldering Defect & Short.
No
No
No
NO (0.6V > Value or Value > 4.6V)
No
Yes
Yes
Yes
Yes
Sensor MICOM/Connector #
R
Between Connector
CN30-"13"(WHT) and
CN30-"15"(WHT)
Voltage : Between 4.6V ~ 0.6V
** Sensor Resistance Reading
Location **
R : Between CN30 #13 and #15
** 0Ω : Short / ∞Ω : Open
Voltage at MIC01 MICOM #7 is the
same as the value between
CN30-"13"(WHT) and
CN30-"15"(WHT)
Refer to Circuit Diagram
DATA1. Temp Table
ERROR CODE
Freezer, Kimchi model
Fridge model
- 1 BOARD
Содержание RR39M7 Series
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