SiUS042113E
Check
Part 6 Service Diagnosis
135
5.2 Indoor Fan Motor Connector Check
Check No.03
Fan motor wire breakdown/short circuit check
1. Check the connector for connection.
2. Turn the power off.
3. Check if each resistance at the phases U - V and V - W is within specified range in the table
below.
R6000511
5.3 Power Supply Waveform Check
Check No.11
Measure the power supply waveform between No. 1 and No. 2 on the terminal strip, and check the
waveform disturbance.
Check if the power supply waveform is a sine wave (Fig.1).
Check if there is waveform disturbance near the zero-cross (sections circled in Fig.2).
U-V/V-W Resistance
(
)
09/12 class
41 ~ 57
18/24 class
20 ~ 28
3
2
1
Phase U
Phase V
Phase W
S200
[Fig.1]
[Fig.2]
(R1736)
(R1444)
Summary of Contents for FTXM-V Series
Page 16: ...SiUS042113E 12 Part 2 Specifications 1 Specifications 13 Part 2 Specifications...
Page 96: ...Troubleshooting SiUS042113E 92 Part 6 Service Diagnosis Reference Check No 01 Refer to P 134...
Page 150: ...Check SiUS042113E 146 Part 6 Service Diagnosis 18 24 class R24539 DC DC W V U...
Page 166: ...Piping Diagrams SiUS042113E 162 Part 8 Appendix RXM24VVJU 3D132217...
Page 171: ...SiUS042113E Operation Limit Part 8 Appendix 167 3 Operation Limit RXM09 12 18 24VVJU 3D133582A...
