Output Overcurrent Detection - Daikin 2MXS-W Series Service Manual

SiUS122226E

7.20 Output Overcurrent Detection

L5
Error Code
Outdoor Unit LED A j 1 h 2 h 3 i 4 h 5 h
Display
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 5 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
 Supply voltage out of specification
 Defective compressor
Part 6 Service Diagnosis
microcomputer.
Troubleshooting for Outdoor Unit
221