Gree GUD71PHS1/A-S - Page 74

GREE U-Match 6 SERIES UNIT SERVICE MANUAL
71
Troubleshooting:
3.4.15 “Lc” Startup Failure
Error display:
ODU mainboard, IDU wired controller and IDU receive light board will display Lc.
■Poor contact of compressor UVW wire;
■Compressor is broken;
■Compressor drive board is broken.