Samsung RF31FM Series Manual page 175

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6. Self Diagnosis & Trouble Shooting
6-1. If the trouble is detected by self-diagnosis
9) If Humidity Sensor has trouble
ERROR Code
DATA1. Temperature table
** Measuring point of resistance value
according to Sensor" Humidity :
CN30"1"↔ "3"
Resistance value with opened : about 50Ω
** 0Ω: Short trouble / ∞Ω: Open trouble
Refer to circuit diagram in the manual
Sensor MICOM/Connector number
Connector CN30-"3"(brown)
Humidity to J23 JUMMPER PCB
typical Ground
Voltage measured between 4.6V ~ 0.6V.
Start
Is MAIN PCB
Connector CN30 inserted
correctly?
YES
Is Humidity Sensor
unit normal?
YES
Is the voltage between
MAIN PCB Connector
CN30-"3"(Brown) and
J23 JUMMPER normal?
YES
NO
Bad contact of connector
/insert correctly
NO
Replace the Humidity Sensor
DATA2. Humidity Sensor Table
NO (1.0V > Measurement < 3.5V)
Recheck the PCB & Wire
Terminal connection
To do list
175