Outdoor Temperature Sensor Error - Samsung AR TSFY WKNCV Series Service Manual

9-2-4 Outdoor temperature sensor error

Indoor display
7-SEG DISPLAY
C221
Outdoor display
LED ON
LED BLINKING
1. Checklist :
1) Is the sensor connected correctly?
2) Is the sensor placed correctly?
3) Does the both terminal of sensor satisfy the resistance value in accordance with temperature?
4) Is the resistance value of sensor connection pull-up correct?
2. Troubleshooting procedure
Is the sensor connector("A") connected
correctly in accordance with a color?
YES
Is the sensor resistance value
"B" 10kohm±3% at the room temperature
°F
of 77
YES
Connect the sensor to PBA connector supply
power and measure the voltage of "B"in the
connector
Below 0.5Vdc or Over 4.5Vdc?
NO
Micom error or connector check
YES
Exchange the Outdoor PBA
DESCRIPTION
Outdoor temperature sensor error
LED OFF
?
Outdoor temperature sensor error
Model
ALL
NO
Reconnect the sensor connector.
NO
Sensor Replace
Sensor resistance value : 68
YES
Exchange the Outdoor PBA
9-5
"A" "B"
CN251 CN251 #1-#2
°F
- 12.09 kohm
°F
86 - 8.31 kohm
°F
95 - 6.94 kohm
°F
104 - 5.83 kohm