Inverter Pcb Abnormality - Daikin VRV RXYQ72-384XAYCA Service Manual

SiUS342004EB

3.48 Inverter PCB Abnormality

Applicable
All outdoor unit models
Models
L1
Error Code
Method of Error
 Detect according to current value detected during the output of waveform before compressor
Detection
 Detect according to current value detected with the current sensor during synchronous
Error Decision
 When overcurrent (OCP) flows during the output of waveform
Conditions  When the current sensor error during synchronous operation
 When IPM error occurs
Supposed
 Inverter PCB
Causes
Part 6 Service Diagnosis
startup
operation for startup
 IPM failure
 Current sensor failure
 Drive circuit failure
Troubleshooting by Error Code
306