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SiEN18-622
Troubleshooting for SkyAir Indoor Unit
Troubleshooting
351
Check No. 02
Check for Thermistors
Disconnect the thermistor connector from PCB, then measure the resistance by using a tester.
Thermistor temperature and resistance characteristics
Unit : k
Ω
Temperature
°C
A
B
-6.0
90.8
88.0
-4.0
81.7
79.1
-2.0
73.5
71.1
0.0
66.3
64.1
2.0
59.8
57.8
4.0
54.1
52.3
6.0
48.9
47.3
8.0
44.3
42.9
10.0
40.2
38.9
12.0
36.5
35.3
14.0
33.2
32.1
16.0
30.2
29.2
18.0
27.5
26.6
20.0
25.1
24.3
22.0
23.0
22.2
24.0
21.0
20.3
26.0
19.2
18.5
28.0
17.6
17.0
30.0
16.2
15.6
32.0
14.8
4.2
34.0
13.6
13.1
36.0
12.5
12.0
38.0
11.5
11.1
40.0
10.6
10.3
42.0
9.8
9.5
44.0
9.1
8.8
46.0
8.4
8.2
48.0
7.8
7.6
50.0
7.2
7.0
52.0
6.9
6.7
54.0
6.2
6.0
56.0
5.7
5.5
58.0
5.3
5.2
Application
z
Heat exchanger
(Indoor/Outdoor units)
z
Suction air
z
Remote control
z
Air
z
Outdoor air
z
Suction pipe
z
Radiator fin
Summary of Contents for FTKS50BVMB
Page 1: ...SiEN18 622 E Series Service Manual Applied Models zSuper Multi Plus Cooling Only Heat Pump ...
Page 105: ...Refrigerant Flow for Each Operation Mode SiEN18 622 92 Refrigerant Circuit ...
Page 157: ...Indoor Unit SkyAir Models SiEN18 622 144 Function ...
Page 312: ...SiEN18 622 Ceiling Mounted Cassette Type System Configuration 300 ...
Page 424: ...Method of Replacing The Inverter s Power Transistors Modules SiEN18 622 412 Troubleshooting ...
Page 446: ...Wiring Diagrams SiEN18 622 434 Appendix ...
Page 452: ...SiEN18 622 vi Index ...