Thermistor Resistance Check - Daikin FTX25JVEA9 Service Manual

Si18-201
3.4.8

Thermistor Resistance Check

Check No.8 Remove the connectors of the thermistors on the PCB, and measure the resistance of each
thermistor using tester.
The relationship between normal temperature and resistance is shown in the graph and the
table below.
Service Diagnosis
Thermistor R25°C=20kΩ B=3950
Temperature (°C)
-20
-15
-10
-5
0
5
10
15
20
25
30
35
40
45
50
Troubleshooting - Outdoor Unit Related
211.0 (kΩ)
150
116.5
88
67.2
51.9
40
31.8
25
20
16
13
10.6
8.7
7.2
305