Samsung AM022FNNDEH Service Manual page 316

Troubleshooting
4-4-91 Hydro Unit Water Out Temperature Sensor Error (Open/Short)
Outdoor unit display
Indoor unit display
Criteria
Cause of problem
1. Inspection Method
Did the connector for Water Out Temperature
Sensor breakaway from the PCB?
Separate the connector of Water Out
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.
316
↔
XXX (xxx : Address of Indoor Unit that error occurred))
Refer to the judgment method below.
Hydro Unit Water Out 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 Out Temperature Sensor itself.
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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