![background image](http://html1.mh-extra.com/html/daikin/ftks20cvmb-9/ftks20cvmb-9_service-manual_4210114141.webp)
Check
SiENBE04-512A
132
Service Diagnosis
5.1.3 Thermistor Resistance Check
Check No.6
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.
Thermistor R25°C=20k
Ω
B=3950
Temperature (°C)
–20
211.0 (k
Ω
)
–15
150
–10
116.5
–5
88
0
67.2
5
51.9
10
40
15
31.8
20
25
25
20
30
16
35
13
40
10.6
45
8.7
50
7.2
Te
s
ter
Re
s
i
s
t
a
nce r
a
nge
(R25 = 20k
Ω
, B =
3
950)
(k
Ω
)
150
100
50
-15
0
15
3
0
45
(R14
3
7)
(°C)
SiENBE04-512A.book Page 132 Friday, October 5, 2007 1:49 PM
Summary of Contents for FTKS20CVMB(9)
Page 1: ...SiENBE04 512A Service Manual Inverter Pair Wall Mounted Type C Series D Series...
Page 17: ...List of Functions SiENBE04 512A 8 List of Functions...
Page 37: ...Specifications SiENBE04 512A 28 Specifications...
Page 73: ...Control Specification SiENBE04 512A 64 Function and Control...
Page 103: ...Instruction SiENBE04 512A 94 System Configuration...
Page 147: ...Check SiENBE04 512A 138 Service Diagnosis...
Page 225: ...Outdoor Unit RK X H C ARK X H C R Y N C SiENBE04 512A 216 Removal Procedure...
Page 229: ...Others SiENBE04 512A 220 Others...
Page 241: ...Wiring Diagrams SiENBE04 512A 232 Appendix...