Troubleshooting
Samsung Electronics12-46
■
Dual-pipe Temperature Sensor Error (Open/Short)
Outdoor unit display
Indoor unit display (Operation) (Timer) (Fan) (Filter) (Defrost)
Judgment method Refer to the below judgment method
Causes Open or short of the corresponding sensor
Is separated the dual-pipe temperature
sensor connector from PCB?
Is the resistance value far
from the
temperature table?
Detach the dual-pipe temperature sensor
connector from PCB and measure the resistance
value between the both terminals.
Restart after replacing PCB.
Restart after connecting a connector
to PCB.
Replace the dual-pipe temperature sensor
because it is defect.
Yes
Yes
Yes
No
No
Temperature
(°C)
70
60
50
40
30
20
10
0
-10
Resistance
(KΩ)
2.2
3.0
4.2
5.8
8.3
12.1
18.0
27.3
43.0
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