Troubleshooting By Symptoms; Indoor Temperature Sensor (Open/Short) - Samsung AC018JN4DCH/AA Service Manual

4-3 Troubleshooting by symptoms

4-3-1 Indoor temperature sensor (open/short)

Indoor unit display
Symptom
Failure
Is indoor temperature
sensor disconnected from the
connector in PCB?
No
Remove the indoor 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
Samsung Electronics
X (Operation) (Defrost) X (Timer) X (Filter)
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
Indoor temperature sensor
failure (replace)
Troubleshooting
<Temperature sensor
resistance value>
Current
Resistance
temperature
(kΩ)
(°C)
40 5.800
35 6.900
30 8.300
25 10.00
20 12.10
15 14.70
10 18.00
5 22.00
0 28.30
-5 33.90
-10 42.30
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