Fault Diagnosis By Symptom; Indoor Temperature Sensor (Open/Short) - Samsung AC026FBRDEH Service Manual

4-3 Fault Diagnosis by Symptom

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

Indoor unit display
Criteria
Cause of problem
Is indoor temp. sensor
connector disconnected?
No
Disconnect the PCB from the
connector of the internal temp. sensor
and then measure the resistance
between the two terminals.
At that time,
does the resistance value deviate from the
temp. table beside?
No
Resume operation after replacing PCB
4-12
X(Operation) (Timer)
In case of disconnection or short-circuit of the indoor temperature sensors
Disconnection or short-circuit of the relevant sensors
ex) Room temperature
26°C~ resistance 09.26KΩ
X(Defrost)
Yes
Resume operation
after connecting to the
connector PCB
Yes
Indoor temp. sensor
self-defect (replacement)
<Temperature sensor
resistance values>
Current Resistance
Temp. (°C) (KΩ)
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
Samsung Electronics