Samsung AVXC1H022 series Service Manual page 275

Troubleshooting
I Indoor Unit Room Temperature Sensor Error (Open/Short)
Outdoor unit display
Indoor unit display
Judgment method
Causes
room temperature sensor connector
Detach the indoor room temperature sensor
connector from PCB and measure the resistance
value between the both terminals.
9-31
↔ A*** (***: Indoor unit address which an error is occurred)
(Operation)
Refer to the below Judgment Method
Open/Short defect of the no. *** indoor unit room temperature sensor
Is separated the indoor unit
from PCB?
Yes
Yes
Is the resistance value
far from the
temperature table?
Yes
Restart after replacing PCB.
(Timer) (Fan) (Filter)
No
Restart after connecting a
connector to PCB.
No
Replace the indoor room temperature
sensor because it is defect.
(Defrost)
Temperature Resistance
(°C) (Kߟ)
70 2.2
60 3.0
50 4.2
40 5.8
30 8.3
20 12.1
10 18.0
0 27.3
-10 43.0
Samsung Electronics