Samsung RF31FM Series Manual page 163

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6. Self Diagnosis & Trouble Shooting
6-1. If the trouble is detected by self-diagnosis
3) If R DEF Sensor has trouble
ERROR Code
DATA1. Temperature table
** Measuring point of resistance value
according to Sensor **
R-DEF : CN30#8 ↔ CN76#1 measuring
resistance value
** 0Ω: Short trouble / ∞Ω: Open trouble
Refer to circuit diagram in the manual
Sensor MICOM/Connector Number
Connector CN30-"8"(Sky-
R DEF blue) and J23 JUMMPER
PCB typical Ground
Voltage measured between 4.6V ~ 0.6V.
Start
Is MAIN PCB
Connector CN30 and CN76 inserted
correctly?
YES
Is R DEF Sensor
unit normal?
YES
Is the input voltage between
MAIN PCB Connector
CN30-"8"(Skyblue) and
J23 JUMMPER normal?
YES
NO
Bad contact of connector/
insert correctly
NO
Replace the temperature
NO (0.6V > Measurement < 4.6V)
Recheck the wire connection
To do list
sensor
part
163