Samsung AC026NNNDKH Service Manual page 63

4-4-4-2. Troubleshooting procedure (PF3)
Is the sensor connector(CN502) connected
correctly in accordance with a colorRED,4PIN)?
Is the sensor resistance value #3-#4
(CN501) 10kohm±3% at the room temperature
of 25 25°C
Connect the sensor to PBA connector(4pin)
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
4-30
Yes
Yes
No
Yes
No
Reconnect the sensor connector.
No
Sensor Replace
Sensor resistance value : 20°C - 242kohm
Yes
Exchange the Outdoor PBA
30°C - 166ohm
35°C - 138ohm
40°C - 115kohm
Samsung Electronics