LG ATNH306FLFC - Troubleshooting - Phase Error (CH54); Diagnosing Phase Errors

124 Synchro Air Conditioner
Troubleshooting Guide
Troubleshooting CH54
54
Phase error
• Phase change
• Check the Main power
• Check the CN_PHASE connector
Display
code
Title Cause of error Check point & Normal condition
Check Point
1. Check the Main power.
2. Check the connecting state of connector CN_3PHASE on the outdoor pcb ass'y.
1
0
0
0
0
1
UVW
Phase_A
Phase_B
Phase_C
5.3 msec
1
0
1
1
1
0
0
1
0
0
1
1