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SiUS331708EA
Troubleshooting by Error Code
Service Diagnosis
232
Troubleshooting
∗
The number of indoor units that may be connected to an individual outdoor unit system is
determined by the model of the outdoor unit.
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
YES
YES
YES
YES
NO
NO
NO
NO
Is the outdoor unit
PCB replaced by the backup
PCB?
Is the refrigerant type
of the indoor unit and outdoor unit
matched?
Is the total number
of indoor units displaying
UA
and indoor units connectable
to the same refrigerant system
within the permitted limit?
Press the
RESET (BS5)
button on the
outdoor unit PCB for 5 seconds.
Is any fault detected?
Check the model name of the
outdoor unit PCB and then
replace the old one.
Too many indoor units under one
refrigerant system.
Normal
Match refrigerant type of indoor
unit and outdoor unit.
Replace the outdoor main PCB
(A1P).
∗
Summary of Contents for RXSQ24TAVJU
Page 1: ...Service Manual SiUS331708EA RXSQ24 36 48 60TAVJU Heat Pump 60 Hz...
Page 290: ...Wiring Diagrams SiUS331708EA 277 Appendix RXSQ48TAVJU 3D109546A...
Page 291: ...SiUS331708EA Wiring Diagrams Appendix 278 RXSQ60TAVJU 3D109547A...
Page 295: ...SiUS331708EA Wiring Diagrams Appendix 282 FXZQ05 07 09 12 15 18TAVJU 3D110443A...
Page 298: ...Wiring Diagrams SiUS331708EA 285 Appendix FXEQ07 09 12 15 18 24PVJU 3D098557A...
Page 300: ...Wiring Diagrams SiUS331708EA 287 Appendix FXSQ05 07 09 12 15 18 24 30 36 48 54TAVJU 3D110467B...
Page 301: ...SiUS331708EA Wiring Diagrams Appendix 288 FXMQ07 09 12 15 18 24 30 36 48 54PBVJU 3D093209B...
Page 302: ...Wiring Diagrams SiUS331708EA 289 Appendix FXHQ12 24 36MVJU 3D048116C...
Page 303: ...SiUS331708EA Wiring Diagrams Appendix 290 FXAQ07 09 12 18 24PVJU 3D075354C...
Page 309: ...SiUS331708EA Wiring Diagrams Appendix 296 VAM1200GVJU 3D073270D...