Outdoor Temperature Sensor Error - Samsung AM045NN4DEH Series Service Manual

4-4-39 Outdoor Temperature Sensor Error

Outdoor unit display
Indoor unit display
Criteria ∙ Refer to the judgment method below.
Cause of problem ∙ Outdoor temperature sensor Open/Short is defective.
1. Cause of problem
Did the outside temperature
sensor connector break away
from the PCB?
After separating the outdoor temperature sensor
connector from the PCB, measure the resistance value
between the terminals.
Did the resistance
value significantly stray from the following
temperature table?
Restart operation after replace the PCB
Samsung Electronics
Operation
Yes
Resistance value measure part
Yes
Timer
No
Restart operation after connecting
the connector to the PCB.
Temperature (°C)
OUT
No
Replace this since it is the defective of
the outdoor temperature sensor itself.
Troubleshooting
OUT
Resistance (KΩ)
70 2.2
60 3.0
50 4.2
40 5.8
30 8.3
20 12.1
10 18.0
0 27.3
-10 43.0
87