Troubleshooting
Samsung Electronics12-52
■
: Indoor Unit EVAP IN 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 error of the no. *** indoor unit EVAP IN sensor
Is separated the indoor
EVAP IN sensor connector
from PCB?
Is the resistance value
far from the
temperature table?
Detach the indoor EVAP IN
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 EVAP IN 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