LG Air Conditioner Error Code E367

E367 indicates that the inverter PBA has detected an unconnected or open-circuit condition in the wiring to compressor 2. The board monitors the compressor circuit and shuts down operation when it cannot confirm a proper electrical connection. This protects the system from running in a faulted state that could cause further damage.

No, you should not continue operating the unit while E367 is active. The system has detected a fault in the compressor 2 circuit, and running the system in this condition can lead to additional component damage. Power the unit off and have a technician inspect it before resuming use.

Repair costs depend on the root cause. A simple wiring reconnection by a technician may cost between $75 and $200 in labor. If the wiring harness needs replacement, expect parts and labor in the range of $150 to $400. An inverter PBA replacement is more expensive, typically ranging from $300 to $700 or more depending on the model. Compressor replacement represents the highest cost scenario and can range from $600 to well over $1,500.

A basic visual inspection of accessible wiring connectors is something a knowledgeable homeowner can perform, but working inside the unit near high-voltage inverter components carries serious safety risks. Diagnosing and repairing the inverter PBA or compressor wiring should be handled by a qualified technician. Attempting repairs without proper training can result in electrical shock or equipment damage.

A reset may temporarily clear the fault code, but E367 will return if the underlying wiring or connection problem is not resolved. The inverter PBA will re-detect the open circuit on the next startup or operating cycle. A proper repair of the wiring or affected component is required to clear the code permanently.