Samsung AR18KSFPDWQXCV - Outdoor Discharge Temperature Sensor Error

Samsung Electronics 10-9
10-2-8 Outdoor Discharge temperature sensor error
Indoor display
3-LED DISPLAY
7-SEG DISPLAY
DESCRIPTION
LED1 LED2 LED3
E251
Outdoor Discharge temperature
sensor error
Outdoor display
Outdoor Discharge temperature sensor error
LED ON LED BLINKING LED OFF
1. Checklist :
1) Is the sensor connected correctly?
2) Is the sensor placed correctly?
3) Does the both terminal of sensor satisfy the resistance valueinaccordance with temperature?
4) Is the resistance valueof sensor connection pull-up correct?
2. Troubleshooting procedure
YES
Exchange the Outdoor PBA
YES
Exchange the Outdoor PBA
NO
NO
NO
Is the sensor resistance value
"B" 200kohm±3% at the room tempera ture
of25
Is the sensor connector("A")
connected correctlyinaccordance
with a color ?
YES
YES
Is the connection ofpower cable
and communication cablenormal?
Sensor Replace
Sensor resistance value 20
-242kohm
30
-166ohm
35
-138ohm
40
-115kohm
Recon nect the sensor connector .
Connect t he sensor to PBA connector
supply power and measure the voltage of
"B"in the
connector
Below0.5VdcorOver 4.5Vdc?
Micom error or connector check
MODEL "A" "B"
ALL CN251 CN251 #3-#4