Samsung AM022FNNDEH Service Manual page 317

4-4-92 Hydro Unit Water Tank Temperature Sensor Error (Open/Short)
Outdoor unit display
Indoor unit display
Criteria
Cause of problem
1. Inspection Method
Did the connector for Water Tank Temperature
Sensor breakaway from the PCB?
Separate the connector of Water Tank
Temperature Sensor from the PCB and
measure the resistance value between
Did the resistance value significantly
stray from the following temperature table?
Restart operation after replace the PCB.
Samsung Electronics
↔
XXX (xxx : Address of Indoor Unit that error occurred))
• Refer to the judgment method below.
• Hydro Unit Water Tank Temperature Sensor Open/Short error of xxx
Yes
the 2 terminals.
Yes
No
Restart operation after connecting the
connector to PCB.
Resistance value
measure part
No
Replace this part as it is the defective of
Water Tank Temperature Sensor itself.
Troubleshooting
Temperature(℃) 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
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