Samsung AM038KXWDCH, Service Manual, Page: 116 / 295

Troubleshooting
Samsung Electronics 113
4-3-29 Suction-2 Temperature Sensor Error (OPEN/SHORT)
1. Inspection Method
Yes
Suction2 sensor connector (CN44)
connected to PBA?
Is the resistor value matching with
“NOTE1” table?
Separate the connector of the Suction-2 sensor
from the PBA, and measure the resistance value
between the two terminals.
Restart operation after changing PBA
Restart operation after connecting the
connector to PBA
Change this part as it is the fault of the
outdoor Suction-2 sensor itself.
Yes
No
No
Resistance value measure part
CN46 (1, 2)
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
∙ Detect according to temperature detected with the Suction #2 pipe temperature thermistor.
Cause of
problem
∙ Suction #2 temperature sensor is defective. (open/short)
4-3 Appropriate Measures for Different Symptom (cont.)