Daikin 4MXL-T Series User Manual

SiUS121827E Troubleshooting for Outdoor Unit
Part 6 Service Diagnosis 229
7.19 Output Overcurrent Detection
Error Code L5
Outdoor Unit LED
Display
A j 1 h 2 h 3 i 4 h 5 h
Method of Error
Detection
An output overcurrent is detected by checking the current that flows in the inverter DC section.
Error Decision
Conditions
 A position signal error occurs while the compressor is running.
 A rotation speed error occurs while the compressor is running.
 An output overcurrent signal is fed from the output overcurrent detection circuit to the
microcomputer.
 If the error repeats, the system is shut down.
 Reset condition: Continuous run for about 5 minutes without any other error
Supposed
Causes
 Poor installation condition
 Closed stop valve
 Defective power module
 Wrong internal wiring
 Abnormal power supply voltage
 Defective outdoor unit PCB
 Supply voltage out of specification
 Defective compressor

Daikin 4MXL-T Series Specifications

General

Brand	Daikin
Model	4MXL-T Series
Category	Air Conditioner
Language	English