Troubleshooting
4-38
Samsung Electronics
4-3-17 Outdoor Temperature Sensor Error
1. Cause of problem
Is the outdoor
temperature sensor connector (CN43)
connected to PCB?
Did the resistance
value significantly stray from the following
temperature table?
After separating the outdoor temperature
sensor connector from the PCB, measure
the resistance value between the terminals.
Restart operation after replace the PCB
Restart operation after connecting
the connector to the PCB.
Replace this since it is the defective of
the outdoor temperature sensor itself.
Yes
No
No
CN43 (7, 8)
Yes
Temperature (°C)
70
60
50
40
30
20
10
0
-10
Resistance (KΩ)
2.2
3.0
4.2
5.8
8.3
12.1
18.0
27.3
43.0
Resistance value measure part
OUT
OUT
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 24
℃
27
℃
◑
×
×
◑
×
◑
×
◑
×
◑
×
×
◑
×
※ ●
: ON
◑
: Flash ×: OFF
Judgment
Method
∙ Refer to the judgment method below.
Cause of
problem
∙ Outdoor temperature sensor Open/Short is defective.