Samsung AM072FXVAFH series - Suction-2 Temperature Sensor Error (OPEN;SHORT)

Troubleshooting
Samsung Electronics 4-69
4-4-29 Suction-2 Temperature Sensor Error (OPEN/SHORT)
t%JTDPOOFDUJPOPSCSFBLEPXOPGSFMFWBOUTFOTPS
t3FGFSUPUIFKVEHNFOUNFUIPECFMPX
Indoor Unit Display
Judgment Method
Special Cause
Outdoor Unit 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
1. Inspection Method
Yes
Suction2 sensor connector (CN44)
connected to PCB?
Is the resistor value matching with
“NOTE1” table?
Separate the connector of the Suction-2 sensor
from the PCB, and measure the resistance value
between the two terminals.
Restart operation after ch
anging PCB
Restart operation after connecting
the connector to PCB
Change this part as it is the fault of the
outdoor Suction-2 sensor itself.
Yes
No
No
Resistance value measure part
68&7
CN46 (1,2)
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