Inverter Pcb Abnormality - Daikin REYQ-XA Service Manual

SiUS371901E

3.49 Inverter PCB Abnormality

L1
Error Code
Applicable
All outdoor unit models
Models
Method of Error
Detection
Error Decision
Conditions
Supposed
Causes
Service Diagnosis
Detect according to current value detected during the output of waveform before compressor
startup
Detect according to current value detected with the current sensor during synchronous
operation for startup
When overcurrent flows during the output of waveform
When the current sensor error during synchronous operation
When IPM error occurs
Inverter PCB

IPM failure

Current sensor failure

 Drive circuit failure
Troubleshooting by Error Code
318