Troubleshooting
12-51Samsung Electronics
■
: I
ndoor Unit Room Temperature Sensor Error (Open/Short)
Outdoor unit display ↔ A*** (***: Indoor unit address which an error is occurred)
Indoor unit display (Operation) (Timer) (Fan) (Filter) (Defrost)
Judgment method Refer to the below Judgment Method
Causes Open/Short defect of the no. *** indoor unit room temperature sensor
Is separated the indoor unit
room temperature sensor connector
from PCB?
Is the resistance value
far from the
temperature table?
Detach the indoor room 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 indoor room temperature
sensor because it is defect.
Yes
Yes
Yes
No
No
Temperature
(°C)
70
60
50
40
30
20
10
0
-10
Resistance
(Kߟ)
2.2
3.0
4.2
5.8
8.3
12.1
18.0
27.3
43.0
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