Daikin Floor Standing Type F-Series Service Manual page 140

Check
5.1.4 Thermistor Resistance Check
Check No.06 Disconnect the connectors of the thermistors from the PCB, and measure the resistance of
each thermistor using tester.
The relationship between normal temperature and resistance is shown in the table and the
graph below.
129
Thermistor temperature (°C)
–20
–15
–10
–5
0
5
10
15
20
25
30
35
40
45
50
(kΩ)
150
100
50
For the models in which the thermistor is directly mounted on the PCB, disconnect the
connector for the PCB and measure.
Resistance (kΩ)
211.0
150.0
116.5
88.0
67.2
51.9
40.0
31.8
25.0
20.0
16.0
13.0
10.6
8.7
7.2
(R25°C = 20 kΩ, B = 3950 K)
-15 0 15 30
RTH1
Tester
(R3460)
SiBE06-708_A
45
(˚C)
(R11905)
Tester
Resistance range
(R11906)
Service Diagnosis