Samsung AM072FXVAFH series - Suction Temperature Sensor Error (Open;Short)

Troubleshooting
Samsung Electronics 4-63
4-4-25 Suction Temperature sensor error (Open/Short)
1.
How to check
Outdoor unit suction
sensor connector (CN44) connected
to PCB?
Is the resistor value matching with
“NOTE1” table?
Separate the connector of the Outdoor Suction
sensor from the PCB and measure the resistance
value betwee
n 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 Suction sensor itself.
No
No
Yes
Yes
Resistance value measure part
SUCT
SUCT
NOTE1
Temperature(°C) Resistance(K)
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 TimerFan Filter/MPI
Operation
Defrost Timer Filter
Operation
TimerTurbo
××◑◑◑
×
◑◑◑ ● ◑◑
※ ● : ON ◑ : Flash ×: OFF
Judgment Method
 Refer to the judgment method below.
Cause of problem
 Disconnection or breakdown of relevant sensor. (More than 4.5V or 0.5V less than)