Liquid Pipe Temperature Sensor Error (Open/Short) - Samsung AM056FN2DEH Series Service Manual

Troubleshooting

4-4-52 Liquid Pipe 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 Liquid Pipe
Temperature sensor break away
Separate the connector of the Liquid Pipe Temperature
sensor from the PCB and measure the resistance value
between the 2 terminals.
value significantly stray from the following
temperature table?
Restart operation after replace the PCB
472
from the PCB?
Yes
Did the resistance
Yes
No
Restart operation after connecting
the connector to PCB
Resistance value measure part
LIQUID
No
Replace this part as it is the defective of
the Liquid Pipe Temperature sensor itself.
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
Samsung Electronics
LIQUID