Samsung AE040RXEDEG Service Manual page 79

Troubleshooting
4-3-4 Hydro unit temperature sensor(open/short)
Error Mode
Symptom
Failure
Is temperature
sensor disconnected from the
connector in PCB?
No
Remove the temperature sensor
connector from the PCB and measure the
resistance between two terminals
In this case, is the resistance
value out of range in the temperature
table on the right?
No
Restart the system after replacing the PCB
82
E121,E122,E123, E901, E902, E903, E904, E906, E916
In case of open or short circuit of indoor temperature sensor
Short or leakage of the corresponding sensor
Yes
Restart the system after connecting
to the PCB connector
Yes
Temperature sensor failure
(replace)
Error Mode Sensor Type
E121,E122,E123,
E901,E902,E903,
103
E906,E916
E904
204
<204 Type>
Current
Resistance
temperature
(kΩ)
(°C)
60 59.16
55 69.44
50 81.92
45 96.95
40 115.4
35 137.8
30 165.7
25 200
20 242.5
15 295.4
10 362.4
<103 Type>
Current
Resistance
temperature
(kΩ)
(°C)
60 3.03
55 3.59
50 4.17
45 4.93
40 5.84
35 6.95
30 8.32
25 10
20 12.08
15 14.68
10 17.94
Samsung Electronics