Samsung RB31FEJNB Series Service Manual page 62

4. TROUBLESHOOTING
3) When the F-Sensor is defective
ERROR CODE
** Sensor Resistance Reading Location **
F : Between CN30 #3 and #7
** 0Ω : Short / ∞Ω : Open
Refer to Circuit Diagram
Sensor MICOM/Connector #
Between Connector CN30-
F
"3"(BRN) and CN30-"7"(GRY)
Voltage : Between 4.6V ~ 0.6V
Voltage at IC10 MICOM #
25 is the same as the value
between CN30-"3"(BRN) and
CN30-"7"(GRY)
Start
MAIN PCB Connector
CN30 is inserted properly?
Yes
F Sensor is
normal?
Yes
Voltage between MAIN PCB
Connector CN30-"3"(BRN)
and CN30-"7"(GRY) is normal?
Yes
Input Voltage at IC10
MICOM Pin #25 is normal?
Yes
PCB and Temp Sensor are normal.
Check the connector contact.
62
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