Samsung AM080xXV Series - EVI in Temperature Sensor Error (Open;Short)

Troubleshooting
Samsung Electronics 4-49
4-3-27 EVI In Temperature sensor error (Open/Short)
1.
Cause of problem
Outdoor EVI IN
sensor connector (CN44) connected
to PCB?
Is the resistor value matching with
“NOTE1” table?
Separate the connector of the Outdoor EVI In
Temperature sensor from the PCB and measure
the resistance value between the 2 terminals.
Restart operation after replace the PCB
Restart operation after connecting
the connector to PCB
Replace this part as it is the defective of the
Outdoor EVI In Temperature sensor itself.
No
No
Yes
Yes
Resistance value measure part
EVI-IN
EVI-IN
CN44 (3, 4)
NOTE1
Temperature(°C) Resistance(KΩ)
70
60
50
40
30
20
10
0
-10
2.2
3.0
4.2
5.8
8.3
12.1
18.0
27.3
43.0
Outdoor unit
display
Indoorunit
display
Duct, Cassette (1/2 Way),Console, Celing Cassette (4/Mini4 Way) Wall-mounted (NeoForte)
Operation Defrost Timer Fan Filter/MPI Operation Defrost Timer Filter Operation Timer Turbo
× × ◑ ◑ ◑ × ◑ ◑ ◑ ● ◑ ◑
※ ●: ON ◑: Flash ×: OFF
Judgment
Method
∙ Refer to the judgment method below.
Cause of
problem
∙ Disconnection or breakdown of relevant sensor.