Eva In And Out Sensor (Open/Short) - Samsung AC052MNMSEH Service Manual

4-3-2 Eva in and out sensor (open/short)

Wire remote controller display
Symptom
Failure
Is the indoor heat Exchanger
temperature sensor connector disconnected
from the PCB?
No
Remove the indoor heat Exchanger
temperature sensor connector from
the PCB and measure the resistance
between two terminals
In this case, is the resistance
value out of range in the temperature table
on the right?
No
Restart the system after replacing the PCB
4-8
E122, E123
Error of EVA-IN,EVA-OUT sensor in the indoor unit(Open/Short)
Short or leakage of the EVA sensor
Yes
Restart the system after
connecting the connector to PCB
Yes
Failure of the indoor heat
Exchanger temperature sensor
(replace)
<Temperature sensor
resistance value>
Current tem- Resistance
perature (°C) (kΩ)
40 5.800
35 6.900
30 8.300
25 10.00
20 12.10
15 14.70
10 18.00
5 22.00
0 28.30
-5 33.90
-10 42.30
Samsung Electronics