Troubleshooting by Error Code
SiUS341802E
169
Service Diagnosis
2.2
Indoor Unit PCB Abnormality
Error Code
A1
Applicable
Models
All indoor unit models
Method of Error
Detection
Check data from EEPROM.
Error Decision
Conditions
When data could not be correctly received from the EEPROM
EEPROM : Type of nonvolatile memory. Maintains memory contents even when the power supply
is turned OFF.
Supposed
Causes
Defective indoor unit PCB
External factor (Noise etc.)
Troubleshooting
Turn the power supply OFF,
then the power ON again.
Does the
system return to
normal?
YES
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
Replace the indoor unit main
PCB (A1P).
The indoor unit main PCB
(A1P) is normal.
External factor other than
error (for example, noise
etc.).
NO
Содержание Aurora Series
Страница 316: ...Wiring Diagrams SiUS341802E 303 Appendix 1 Wiring Diagrams 1 1 Outdoor Unit RXLQ72TATJU 2D112580A ...
Страница 317: ...SiUS341802E Wiring Diagrams Appendix 304 RXLQ96 120TATJU 2D112581A ...
Страница 318: ...Wiring Diagrams SiUS341802E 305 Appendix RXLQ72TAYDU 2D112582A ...
Страница 319: ...SiUS341802E Wiring Diagrams Appendix 306 RXLQ96 120TAYDU 2D112583A ...
Страница 320: ...Wiring Diagrams SiUS341802E 307 Appendix RXLQ72 96 120TAYCU RXYQ72 96 120 144 168TAYCU 2D112579A ...
Страница 330: ...Wiring Diagrams SiUS341802E 317 Appendix 1 3 2 Energy Recovery Ventilator VAM Series VAM300 470 600GVJU 3D073269C ...
Страница 331: ...SiUS341802E Wiring Diagrams Appendix 318 VAM1200GVJU 3D073270C ...
Страница 332: ...Revision History Month Year Version Revised contents 04 2018 SiUS341802E First edition ...