Troubleshooting by Error Code
SiUS341802EC
325
Part 6 Service Diagnosis
3.57 Transmission Error between Inverter PCB and Outdoor
Unit Main PCB
Applicable
Models
All outdoor unit models
Error Code
LC
Method of Error
Detection
Check for the transmission conditions between the inverter PCB and the outdoor unit main PCB
using a microcomputer.
Error Decision
Conditions
When normal transmission is disabled for a given period of time or more.
Supposed
Causes
Defective connection between the inverter PCB and the outdoor unit main PCB
Defective outdoor unit main PCB (transmission block)
Defective noise filter, compressor or fan motor
External factors (e.g. noise)
Failure of inverter PCB or fan PCB
Troubleshooting
Does the
in
v
erter PCB part
No. match that of the spare
parts list?
Replace with a proper PCB.
NO
Properly connect the connector.
NO
YES
Replace the fan motor (M1F, M2F).
YES
NO
The ins
u
lation
resistance of the
rele
v
ant compressor is less
than 100 k
.
The
ins
u
lation
resistance of the rele
v
ant
fan motor is less than
1 M
Replace the compressor.
YES
NO
YES
Caution
Be s
u
re to t
u
rn off the power switch
b
efore connecting or disconnecting
connectors, or parts may
b
e damaged.
Is the
connector
b
etween each o
u
tdoor
u
nit main PCB and each
in
v
erter PCB sec
u
rely
connected?
(
1)
A
Go to the next page.
Содержание VRV Aurora RXLQ-TATJU Series
Страница 376: ...Check SiUS341802EC 369 Part 6 Service Diagnosis Reference Reference CHECK 7 Refer to page 378 CHECK 8 Refer to page 379...
Страница 405: ...SiUS341802EC Wiring Diagrams Part 7 Appendix 398 1 Wiring Diagrams 1 1 Outdoor Unit RXLQ72TATJU RXLQ72TATJA 2D112580C...
Страница 407: ...SiUS341802EC Wiring Diagrams Part 7 Appendix 400 RXLQ96 120TATJU RXLQ96 120TATJA 2D112581C...
Страница 409: ...SiUS341802EC Wiring Diagrams Part 7 Appendix 402 RXLQ72TAYDU RXLQ72TAYDA 2D112582D...
Страница 411: ...SiUS341802EC Wiring Diagrams Part 7 Appendix 404 RXLQ96 120TAYDU RXLQ96 120TAYDA 2D112583D...
Страница 417: ...SiUS341802EC Wiring Diagrams Part 7 Appendix 410 FXFQ07 09 12 15 18 24 30 36 48TVJU 3D086460B...
Страница 418: ...Wiring Diagrams SiUS341802EC 411 Part 7 Appendix BYCQ125BGW1 Self Cleaning Decoration Panel for FXFQ T 3D076375A...
Страница 420: ...Wiring Diagrams SiUS341802EC 413 Part 7 Appendix FXZQ05 07 09 12 15 18TAVJU 3D110443A...
Страница 425: ...SiUS341802EC Wiring Diagrams Part 7 Appendix 418 FXEQ07 09 12 15 18 24PVJU 3D098557A...
Страница 426: ...Wiring Diagrams SiUS341802EC 419 Part 7 Appendix FXDQ07 09 12 18 24MVJU C 3D050501C...
Страница 427: ...SiUS341802EC Wiring Diagrams Part 7 Appendix 420 FXSQ05 07 09 12 15 18 24 30 36 48 54TAVJU C 3D110467C...
Страница 429: ...SiUS341802EC Wiring Diagrams Part 7 Appendix 422 FXMQ07 09 12 15 18 24 30 36 48 54PBVJU 3D093209B...
Страница 433: ...SiUS341802EC Wiring Diagrams Part 7 Appendix 426 FXHQ12 24 36MVJU 3D048116C...
Страница 434: ...Wiring Diagrams SiUS341802EC 427 Part 7 Appendix FXAQ07 09 12 18 24PVJU 3D075354F...
Страница 441: ...SiUS341802EC Wiring Diagrams Part 7 Appendix 434 VAM1200GVJU 3D073270D...