Outdoor Discharge Temperature Sensor Error - Samsung AC026NNNDKH Service Manual

4-4-4 Outdoor Discharge temperature sensor error

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?
4-4-4-1. Troubleshooting procedure (PF2)
Is the sensor connector(CN251) connected
correctly in accordance with a color(BLU,6PIN)?
Is the sensor resistance value #3-#4
10kohm±3% at the room temperature
of 25°C
Connect the sensor to PBA connector (6pin)
supply power and measure the voltage of
#3-#4 in the connector
Below 0.5V or Over 4.5V?
Micom error or connector check
Exchange the Outdoor PBA
Samsung Electronics
Yes
Yes
No
Yes
No
Reconnect the sensor connector.
Sensor Replace
No
Sensor resistance value : 20°C - 242kohm
Yes
Exchange the Outdoor PBA
30°C - 166ohm
35°C - 138ohm
40°C - 115kohm
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