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
Summary of Contents for Aurora Series
Page 317: ...SiUS341802E Wiring Diagrams Appendix 304 RXLQ96 120TATJU 2D112581A ...
Page 318: ...Wiring Diagrams SiUS341802E 305 Appendix RXLQ72TAYDU 2D112582A ...
Page 319: ...SiUS341802E Wiring Diagrams Appendix 306 RXLQ96 120TAYDU 2D112583A ...
Page 331: ...SiUS341802E Wiring Diagrams Appendix 318 VAM1200GVJU 3D073270C ...
Page 332: ...Revision History Month Year Version Revised contents 04 2018 SiUS341802E First edition ...