Troubleshooting by Error Code
SiUS341802E
235
Service Diagnosis
2.47 Inverter Radiation Fin Temperature Rise Abnormality
2.47.1 Inverter Radiation Fin Temperature Rise Abnormality (Inverter PCB)
Error Code
L4
Sub code: 01-03
Applicable
Models
All outdoor unit models
Method of Error
Detection
Detect temperature of power module of the inverter PCB.
Error Decision
Conditions
Thermistor located inside the power module of the inverter PCB for compressor and fan motor.
Cooling tube plate poor heat-exchange.
Supposed
Causes
Cooling tube plate not fixed with screws
U0
error
Defective inverter PCB
High outdoor air temperature
Incorrect power supply voltage
Defective connection of connectors
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 ...