“L5” Output Over Current Detection - Daikin Altherma EKHBH Series Service Manual

ESIE06-03
"L5" Output Over Current Detection
3.16
L5
Error code
Method of An output over-current is detected by checking the current that flows in the inverter DC section.
malfunction
detection
Malfunction
decision conditions
Supposed causes
Part 3 – Troubleshooting
A position signal error occurs while the compressor is running.
A speed error occurs while the compressor is running.
An output over-current input is fed from the output over-current detection circuit to the
microcomputer.
The system will be shut down if the error occurs 16 times.
Clearing condition: Continuous run for about 5 minutes (normal)
Over-current due to defective power transistor
Over-current due to wrong internal wiring
Over-current due to abnormal supply voltage
Over-current due to defective PCB
Error detection due to defective PCB
Over-current due to closed stop valve
Over-current due to compressor failure
Over-current due to poor installation condition
Error Codes: Outdoor Units
3–37
1
3 3
4
5