Troubleshooting by Error Code
SiUS341802EC
305
Part 6 Service Diagnosis
Reference
3.45 Outdoor Fan Motor Signal Abnormality
Applicable
Models
RXLQ72-120TATJU, RXLQ72-120TATJA, RXLQ72-120TBTJA, RXLQ72-120TAYDU,
RXLQ72-120TAYDA, RXLQ72-120TBYDA
Error Code
H7
Method of Error
Detection
Detect of abnormal signal from fan motor.
Error Decision
Conditions
An abnormal signal is detected at startup of the fan motor operation.
Supposed
Causes
Abnormal signal from fan motor (Circuit failure)
Disconnection/Short circuit in fan motor leads or disconnection of connector
Defective inverter PCB (A3P)
Troubleshooting
CHECK 17
Refer to page 388.
Properly connect the connector.
NO
YES
Replace the fan motor (M1F, M2F).
NO
YES
Turn OFF the power supply.
Check for fan motor applicable to the error code
H7
while in
monitor mode.
Sub code
H7-01/05: Fan motor 1 (M1F) Master / Slave 1
H7-02/06: Fan motor 2 (M2F) Master / Slave 1
Check for the connector
of the fan motor.
Replace the fan PCB (A4P, A5P).
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
Is the
connector of
signal cable of the
relevant fan motor
normally
connected?
Is
resistance
between Vcc and
UVW and between GND
and UVW of the fan
motor lead in
balance?
CHECK 17
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...