Suction Temperature Sensor Error (Open/Short) - Samsung AM045NN4DEH Series Service Manual

4-4-51 Suction Temperature sensor error (Open/Short)

Outdoor unit display
Indoor unit display
Criteria ∙ Refer to the judgment method below.
Cause of problem ∙ Disconnection or breakdown of relevant sensor.
1. Cause of problem
Did the connector for
the Outdoor Suction sensor break away
from the PCB?
Separate the connector of the Outdoor Suction sensor
from the PCB and measure the resistance value
between the 2 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 PCB
Temperature (°C)
SUCT
No
Replace this part as it is the defective of the
Outdoor Suction sensor itself.
Troubleshooting
SUCT
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
99