SiUS342004EB
Troubleshooting by Error Code
Part 6 Service Diagnosis
290
Note(s)
Reference
Reference
CHECK 4
Refer to page 362.
CHECK 12
Refer to page 369.
NO
YES
Are
the high
pressure and
ow pressure checked
by the service checker the
same as the actual measured
values of the high and
low pressure
sensors?
Replace the outdoor unit main
PCB (A1P).
NO
Replace the inverter PCB
(A4P).
CHECK 4
Is the power transistor
normal?
YES
Replace the compressor.
A
1. Make a comparison between voltage measured by the pressure sensor and that read by the
pressure gauge.
(The pressure sensor makes measurement of voltage at its connector block to convert it to
pressure.
CHECK 12
)
Summary of Contents for VRV RXYQ72-384XAYCA
Page 1: ...Service Manual RXYQ72 384XAYCA RXYQ72 384XBYCA Heat Pump 60 Hz SiUS342004EB...
Page 395: ...SiUS342004EB Wiring Diagrams Part 7 Appendix 388 FXFQ07 09 12 15 18 24 30 36 48TVJU 3D086460B...
Page 397: ...SiUS342004EB Wiring Diagrams Part 7 Appendix 390 FXZQ05 07 09 12 15 18TAVJU 3D110443A...
Page 401: ...SiUS342004EB Wiring Diagrams Part 7 Appendix 394 FXEQ07 09 12 15 18 24PVJU 3D098557A...
Page 402: ...Wiring Diagrams SiUS342004EB 395 Part 7 Appendix FXDQ07 09 12 18 24MVJU C 3D050501C...
Page 409: ...SiUS342004EB Wiring Diagrams Part 7 Appendix 402 FXHQ12 24 36MVJU 3D048116C...
Page 410: ...Wiring Diagrams SiUS342004EB 403 Part 7 Appendix FXAQ07 09 12 18 24PVJU 3D075354F...
Page 418: ...Wiring Diagrams SiUS342004EB 411 Part 7 Appendix VAM1200GVJU 3D073270D...
