Samsung RT53 Service Manual page 46

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TROUBLESHOOTING
2) When the EXT-Sensor is defective
DATA1. Temp Table
** Sensor Resistance Reading Location **
EXT : Between CN31 #1 and #2.
** Located in the PCB Box
** 0Ω : Short / ∞Ω : Open
Refer to Circuit Diagram
Sensor MICOM/Connector #
Between Connector CN31-
EXT
Voltage : Between 4.6V ~ 0.6V
Voltage at IC10 MICOM #21
is the same as the value
between CN31-"1"(YEL) and
CN31-"2"(YEL) of the CN31
on MAIN PBA.
ERROR CODE
"1"(YEL) and CN31-
"2"(YEL)
PCB and Temp Sensor are normal.
RELATED TITLES
Hotpoint,Mba LG_MULTI_F_3828A20097W_1[1]
4033 Cv
Start
MAIN PCB Connector No
CN31 is inserted properly?
Yes
EXT Sensor is No
normal?
Yes
Voltage between
No
MAIN PCB Connector CN31-"1"(YEL)
and CN31-"2"(YEL)?
Yes
No
Input Voltage at IC10
MICOM Pin #21 is normal?
Yes
Check the connector contact.

Samsung 34648123
Refrigerador WD856UH
Connector contact defect / Reconne
Replace Temp Sensor
NO(Value < 0.6V or Value > 4.6V)
Check the wire connection
Check Soldering Defect & Short