4-22
Samsung Electronics
4-4-2 Outdoor temperature sensor error
1. 1.Checklist :
1) Is the cable between the indoor unit and outdoor unit 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?
Yes
Reconnect the sensor connector.
Micom error or connector check
No
Is the sensor resistance value #1-#2
10kohm±3% at the room temperature
of 25
°C
Is the sensor connector(CN251) connected
correctly in accordance with a color(BLU,6PIN)?
Sensor Replace
Sensor resistance value : 20
°C
- 12.09kohm
30
°C
- 8.31kohm
35
°C
- 6.94kohm
40
°C
- 5.83kohm
No
No
Exchange the PBA of no power unit
Yes
Below 0.5V or Over 4.5V?
Yes
Connect the sensor to PBA connector (6pin)
supply power and measure the voltage of
#1-#2 in the connector
Exchange the Outdoor PBA
Yes
4-4-2-1. Troubleshooting procedure (PF2)
