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SiEN18-622
Method of Replacing The Inverter’s Power Transistors Modules
Troubleshooting
411
Power module checking
W
V
0.3 to 0.7V
(including
∞
)*
C+
U
V
W
V
W
Not less than 0.3V
(including
∞
)*
C-
U
V
W
0.3 to 0.7V
(including
∞
)*
U
C-
Remark
Criterion
-
+
It may take time to
determine the
voltage
due to capacitor
charge or else.
Not less than 0.3V
(including
∞
)*
U
C+
Tester terminal
When using the digital type of multiple tester, make measurement in diode
check mode.
The following abnormalities are also doubted besides the PC board abnormality.
z
Faulty compressor (ground fault, ground leakage)
z
Faulty fan motor (ground leakage)
*There needs to be none of each value variation.
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 ...