Suction-2 Temperature Sensor Error (Open/Short) - Samsung AM056FN2DEH Series Service Manual

4-4-55 Suction-2 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. Inspection Method
Did the connector for the
Suction-2 sensor break away from the PCB?
Separate the connector of the Suction-2 sensor
from the PCB, and measure the resistance value
between the two terminals.
Did the resistance value
significantly stray from the following
temperature table?
Restart operation after changing PCB
Samsung Electronics
Yes
Resistance value measure part
Yes
No
Restart operation after connecting the
connector to PCB
No
Change this part as it is the fault of the
outdoor Suction-2 sensor itself.
Troubleshooting
Temperature (°C) 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
475