Compressor Lock - Daikin 4MXL-T Series Service Manual

Troubleshooting for Outdoor Unit
7.8

Compressor Lock

E6
Error Code
Outdoor Unit LED A j 1 h 2 i 3 i 4 h 5 h
Display
Method of Error A compressor lock is detected by checking the compressor running condition through the position
Detection detection circuit.
Error Decision
 Judging from the current waveform generated when high-frequency voltage is applied to the
Conditions
 If the error repeats, the system is shut down.
 Reset condition: Continuous run for about 5 minutes without any other error
Supposed  Closed stop valve
Causes  Defective outdoor unit PCB
 Defective compressor
 Defective electronic expansion valve
208
compressor.
SiUS121827E
Part 6 Service Diagnosis