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Troubleshooting by Error Code
SiAF332111E
316
Part 6 Service Diagnosis
5.63 Other Indoor Units and Outdoor Unit Abnormality
Applicable
Models
All indoor unit models
All outdoor unit models
Error Code
U9
Method of Error
Detection
Detect the error signal for the other indoor unit within the circuit by outdoor unit main PCB.
Error Decision
Conditions
The error decision is made on any other indoor units within the system concerned.
Supposed
Causes
Transmission error between other indoor and outdoor units
Defective electronic expansion valve of other indoor unit
Defective indoor unit PCB of other indoor unit
Improper connection of transmission wiring between indoor and outdoor unit
Troubleshooting
U9
has
been displayed for 2
minutes or more.
The outdoor unit main PCB
indicated by the error code
U9
is
normal.
Check for the indoor unit of other
system, and then conduct
troubleshooting by diagnosis
according to the Error Code
Flowchart.
Re-diagnose by display after
passage of 2 minutes or more.
NO
Turn ON all indoor units.
YES
YES
Continue the operation.
NO
All the units are
display
U9
.
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
Содержание VRV S RXQ4/5ARV1
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Страница 349: ...SiAF332111E Check Part 6 Service Diagnosis 343 PCB and Circuit Diagram U V W L3B L2B L1B P1 P2 N32...
Страница 366: ...SiAF332111E 360 Part 7 Appendix 1 Wiring Diagrams 361 1 1 Outdoor Unit 361 1 2 VRV Indoor Unit 366 Part 7 Appendix...
Страница 369: ...SiAF332111E Wiring Diagrams Part 7 Appendix 363 RXMQ6ARV1 C 3D137051...
Страница 370: ...Wiring Diagrams SiAF332111E 364 Part 7 Appendix RXMQ8ARY1 C 3D137060...
Страница 371: ...SiAF332111E Wiring Diagrams Part 7 Appendix 365 RXMQ10 12ARY1 3D121610B...
Страница 375: ...SiAF332111E Wiring Diagrams Part 7 Appendix 369 FXMQ40 50 63 80 100ARV1 3D127112 04 59...
Страница 376: ...Wiring Diagrams SiAF332111E 370 Part 7 Appendix 1 2 4 Wall Mounted FXAQ20 25 32PVE FXAQ40 50 63PVER1 C 3D076498B...