Inverter Compressor Startup Abnormality - Daikin REYQ-TA Series Service Manual

Troubleshooting by Error Code

3.46 Inverter Compressor Startup Abnormality

L9
Error Code
Applicable
All outdoor unit models
Models
Method of Error
Detect error according to the signal waveform of compressor.
Detection
Error Decision When compressor startup operation has not been completed.
Conditions
Supposed
Causes
237
The stop valve is not opened
Defective compressor
Error in wire connections to compressor
Large differential pressure before compressor startup
Defective inverter PCB
SiUS371614E
Service Diagnosis