LG Air Conditioner Error Code E368

E368 indicates an output current sensor error on the inverter PBA2, which is one of the main power control boards in the system. The board monitors current delivered to the compressor, and this code means that signal has gone outside acceptable limits or failed entirely. The unit shuts down automatically to protect the compressor and power electronics from damage.

A power-off reset may clear E368 if the fault was caused by a transient power disturbance rather than a hardware failure. Power the unit completely off at the breaker for several minutes, then restart. If the code reappears on the next cooling cycle, the underlying hardware issue must be addressed before the fault will stay cleared.

Repair costs depend heavily on what component has failed. If only a wiring connection needs cleaning or reseating, the cost is primarily the technician's diagnostic and labor fee, typically in the range of $75 to $150. If the inverter PCB requires replacement, parts and labor combined can range from $250 to $600 or more depending on the specific model and local labor rates. A compressor failure diagnosed alongside E368 would increase costs significantly.

The first step, a full power-off reset and inspection of visible power connections, can be done by a knowledgeable homeowner. However, if the code returns after a reset, diagnosing and replacing the inverter PCB involves working with high-voltage power electronics and should be performed by a qualified HVAC or appliance technician. Attempting board replacement without proper training and tools carries a serious risk of injury or further damage.

No. The unit will typically shut itself down when this fault is active, and attempting to force operation is not recommended. Running the system with a malfunctioning current sensor means the inverter board cannot properly protect the compressor from overcurrent conditions, which could result in compressor failure or damage to additional electronic components.