Troubleshooting by Error Code
SiUS331708EA
213
Service Diagnosis
4.40 PCB (for Inverter Compressor) Abnormality
Error Code
L1
Applicable
Models
All outdoor units
Method of Error
Detection
Error is detected based on the current value during waveform output before starting compressor.
Error is detected based on the value from current sensor during synchronous operation when
starting the unit.
Error Decision
Conditions
Overcurrent (OCP) flows during waveform output.
Error of current sensor during synchronous operation.
IPM failure.
Supposed
Causes
IPM failure
Current sensor failure
Drive circuit failure
Troubleshooting
Replace the outdoor main PCB
(A1P).
YES
NO
It is supposed that the error results
from external causes other than
failures (e.g. exogenous noises or
thunder).
Turn off the power. Then,
turn on the power again.
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
Caution
Does the power
supply normally come
back on?
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...