Troubleshooting
82
Samsung Electronics
Error Mode
E121,E122,E123, E901, E902, E903, E904, E906, E916
Symptom
In case of open or short circuit of indoor temperature sensor
Failure
Short or leakage of the corresponding sensor
Yes
No
No
In this case, is the resistance
value out of range in the temperature
table on the right?
Yes
Is temperature
sensor disconnected from the
connector in PCB?
Restart the system after replacing the PCB
Restart the system after connecting
to the PCB connector
Temperature sensor failure
(replace)
Remove the temperature sensor
connector from the PCB and measure the
resistance between two terminals
4-3-4 Hydro unit temperature sensor(open/short)
Current
temperature
(°C)
Resistance
(kΩ)
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
<204 Type>
Current
temperature
(°C)
Resistance
(kΩ)
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
<103 Type>
Error Mode
Sensor Type
E121,E122,E123,
E901,E902,E903,
E906,E916
103
E904
204
