Samsung AR18TXFCAWKXEU - Outdoor Discharge Temperature Sensor Error

78
SAMSUNG ELECTRONICS
9-2-6 Outdoor Discharge temperature sensor error
Indoor display
7 SEG DISPLAY DESCRIPTION
C251 Outdoor Discharge temperature sensor error
Outdoor display
Outdoor Discharge temperature sensor error
: LAMP ON : LAMP OFF : LAMP BLINK
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?
NO
YES
Reconnect the sensor connector.
Is the sensor resistance value
"B" 200kohm±3% attheroomtemperature
of 25
NO
YES
Sensor Replace
Sensor resistance value 20
- 242kohm
30
- 166ohm
35
- 138ohm
40
- 115kohm
Connectthe sensor to PBA connector
supply power and measure the voltage of
"B"in the
connector
Below 0.5Vdc or Over 4.5Vdc?
YES
NO
Exchange the Outdoor PBA
YES
Exchange the Outdoor PBA
Micom error or connector check
Model "A" "B"
All CN251 CN251 #3-#4