SiUS331604E
Troubleshooting by Error Code
Service Diagnosis
182
4.30 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 VRV IV-S RXTQ-TAVJU Series
Page 1: ...Service Manual SiUS331604E RXTQ36 48 60TAVJU Heat Pump 60 Hz...
Page 254: ...Wiring Diagrams SiUS331604E 241 Appendix RXTQ48TAVJU 3D100496A...
Page 255: ...SiUS331604E Wiring Diagrams Appendix 242 RXTQ60TAVJU 3D100497A...
Page 260: ...Wiring Diagrams SiUS331604E 247 Appendix FXEQ07 09 12 15 18 24PVJU C 3D098557...
Page 267: ...SiUS331604E Wiring Diagrams Appendix 254 FXTQ12 18 24 30 36 42 48 54PAVJU 3D065036G...
Page 270: ...Wiring Diagrams SiUS331604E 257 Appendix VAM1200GVJU 3D073270C...
Page 271: ...Revision History Month Year Version Revised contents 06 2016 SiUS331604E First edition...
