Output Overcurrent - Daikin E Series Service Manual

Troubleshooting

2.32 Output Overcurrent

L5
Remote
Controller Display
Outdoor Unit LED A5
Display
Method of An output overcurrent is detected by checking the current that flows in the inverter DC section.
Malfunction
Detection
Malfunction
Decision
Conditions
Supposed
Causes
186
55
A position signal error occurs while the compressor is running.
A speed error occurs while the compressor is running.
The machine shuts down when the signal of output overcurrent is sent 8 times from the
output overcurrent detection circuit to the microcomputer.
Clear condition: The machine continuously runs for about 11 min. (without fault)
Overcurrent due to defective power transistor
Overcurrent due to wrong internal wiring
Overcurrent due to abnormal supply voltage
Overcurrent due to defective PCB
Detection error due to defective PCB
Overcurrent due to closed stop valve
Overcurrent due to defective compressor
Overcurrent due to poor installation condition
Defective indoor solenoid valve
SiBE04-624
Service Diagnosis