Output Overcurrent Detection - Daikin FTX-N Series Service Manual

SiUS041638EA

4.25 Output Overcurrent Detection

L5
Error Code
Method of Error
An output overcurrent is detected by checking the current that flows in the inverter DC section.
Detection
Error Decision
 A position signal error occurs while the compressor is running.
Conditions
 A rotation speed error occurs while the compressor is running.
 An output overcurrent signal is fed from the output overcurrent detection circuit to the
 If the error repeats, the system is shut down.
 Reset condition: Continuous run for about 11 minutes without any other error
Supposed
 Poor installation condition
Causes  Closed stop valve
 Defective power module
 Wrong internal wiring
 Abnormal power supply voltage
 Defective outdoor unit PCB
 Power supply voltage out of specification
 Defective compressor
Service Diagnosis
microcomputer.
Troubleshooting
92