Troubleshooting by Error Code
SiME341909EA
240
Part 6 Service Diagnosis
5.53 Transmission Error between Indoor Units and Outdoor
Units
Applicable
Models
All indoor unit models
All outdoor unit models
Error Code
U4
Method of Error
Detection
Microcomputer checks if transmission between indoor and outdoor units is normal.
Error Decision
Conditions
Transmission is not carried out normally for a certain amount of time.
Supposed
Causes
Short circuit in indoor-outdoor or outdoor-outdoor transmission wiring (F1/F2), or wrong
wiring
Outdoor unit power supply is OFF
System address does not match
Defective indoor unit PCB
Defective outdoor unit PCB
Содержание VRV X RXQ6-48ANR Series
Страница 1: ...Service Manual Cooling Only 50 60 Hz RXQ6 48A N R Series SiME341909EA...
Страница 287: ...SiME341909EA Part 7 Appendix 281 1 Wiring Diagrams 282 1 1 Outdoor Unit 282 1 2 Indoor Unit 285 Part 7 Appendix...
Страница 288: ...Wiring Diagrams SiME341909EA 282 Part 7 Appendix 1 Wiring Diagrams 1 1 Outdoor Unit RXQ6 8ARYFK 3D124186A...
Страница 289: ...SiME341909EA Wiring Diagrams Part 7 Appendix 283 RXQ10 12ARYFK 2D124184...
Страница 290: ...Wiring Diagrams SiME341909EA 284 Part 7 Appendix RXQ14 16ARYFK 2D124183...
Страница 292: ...Wiring Diagrams SiME341909EA 286 Part 7 Appendix BYCQ125EASF Auto Grille Panel for FXFSQ AR 3D108035...
Страница 295: ...SiME341909EA Wiring Diagrams Part 7 Appendix 289 FXMQ40 50 63 80 100ARV1 3D127112 04 59...
Страница 296: ...Wiring Diagrams SiME341909EA 290 Part 7 Appendix 1 2 4 Wall Mounted Type FXAQ20 25 32 40 50 63ARVM 3D118250D...