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SiUS281811EA
Troubleshooting by Error Codes
Part 6 Service Diagnosis
289
Reference
4.57 Transmission Error between Centralized Controller and
Indoor Unit
Error Code
UE
Applicable
Models
All indoor units
Centralized controller
Method of Error
Detection
Microcomputer checks if transmission between indoor unit and centralized controller is normal.
Error Decision
Conditions
When transmission is not carried out normally for a certain amount of time
Supposed
Causes
Disconnection or error of transmission wiring
Defective setting of group No. or address
Transmission error between optional controllers for centralized control and indoor unit
Defective PCB for centralized controller
Defective indoor unit PCB
Troubleshooting
CHECK 15
Refer to page 305.
Has an
indoor unit once
connected been removed
or its address
changed?
Is
transmission
wiring disconnected or
wired incorrectly?
Is
transmission with
all indoor units
error?
Is the
transmission
wiring with the main
controller disconnected or
wired incorrectly?
Is the main
controller's connector
for setting main controller
disconnected?
Is the
group No. of error
indoor units set?
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
Set the group No.
correctly.
Replace the indoor unit
PCB.
Fix the wiring correctly.
Fix the wiring correctly.
Connect the connector
correctly.
Replace the indoor unit
PCB.
Reset power supply
simultaneously for all optional
centralized control equipment.
NO
YES
NO
YES
NO
NO
YES
NO
YES
YES
YES
NO
Содержание SkyAir RZR-TA Series
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Страница 321: ...SiUS281811EA 315 Part 7 Appendix 1 Wiring Diagrams 316 1 1 Outdoor Unit 316 1 2 Indoor Unit 320 Part 7 Appendix...
Страница 322: ...Wiring Diagrams SiUS281811EA 316 Part 7 Appendix 1 Wiring Diagrams 1 1 Outdoor Unit RZR18 24TAVJU RZQ18 24TAVJU 3D115455...
Страница 323: ...SiUS281811EA Wiring Diagrams Part 7 Appendix 317 RZR18 24TAVJUA RZQ18 24TAVJUA 3D124495...
Страница 324: ...Wiring Diagrams SiUS281811EA 318 Part 7 Appendix RZR30 36 42 48TAVJU RZQ30 36 42 48TAVJU 3D115456...
Страница 325: ...SiUS281811EA Wiring Diagrams Part 7 Appendix 319 RZR30 36 42 48TAVJUA RZQ30 36 42 48TAVJUA 3D124500...
Страница 326: ...Wiring Diagrams SiUS281811EA 320 Part 7 Appendix 1 2 Indoor Unit FCQ18 24 30 36 42 48TAVJU 3D115647A...
Страница 327: ...SiUS281811EA Wiring Diagrams Part 7 Appendix 321 FHQ18 24 30PVJU FHQ36 42MVJU 3D048116C...
Страница 328: ...Wiring Diagrams SiUS281811EA 322 Part 7 Appendix FAQ18 24TAVJU 3D114844B...
Страница 329: ...SiUS281811EA Wiring Diagrams Part 7 Appendix 323 FBQ18 24 30 36 42 48PVJU 3D065984J...