LG Air Conditioner Error Code E467

E467 indicates that the inverter PBA has detected an unconnected or open wire in the circuit for compressor 1. The system stops operation to prevent damage to the compressor or control board. This fault requires inspection of all wiring between the compressor and the inverter PBA before the unit can resume normal operation.

No. The E467 code causes the system to shut down specifically to protect the compressor and inverter board from operating under a fault condition. Attempting to force the unit to run with an open compressor wiring circuit could cause additional damage to the inverter PBA or compressor motor. The fault should be diagnosed and corrected before restarting the system.

Repair costs vary depending on the cause. A simple wiring reconnection during a service call might cost between $75 and $200 in labor. If a wiring harness needs replacement, parts and labor could range from $150 to $400. A failed compressor is the most expensive scenario, with compressor replacement costs typically ranging from $600 to $1,500 or more depending on the unit size and refrigerant type.

A knowledgeable DIYer can inspect visible wiring connections and reseat loose connectors, which resolves the error in some cases. However, diagnosing broken wires, corroded terminals, or internal compressor faults requires electrical testing equipment and familiarity with inverter AC systems. Work on the compressor and inverter board involves high voltages, so any testing beyond a visual inspection should be performed by a qualified technician.

A power reset may temporarily clear the displayed code, but the error will return as soon as the inverter PBA attempts to communicate with compressor 1 and detects the same wiring fault. The underlying wiring or component issue must be repaired for the code to stay cleared.