LG Fault Codes - Vrf Services - Maintenance and Repair
CH 43 – High pressure sensor failure (Master 431, Slave1 432, Slave2 433, Slave3 434) CH 44 – Outdoor unit ambient sensor faulty (Master 441, Slave1 442, Slave2 443, Slave3 444) CH 45 – Condenser pipe sensor defective (Master 451, Slave1 452, Slave2 453, Slave3 454) CH 46 – Compressor suction temperature thermistor defective CH 47 – Constant1 Compressor outlet