LG Air Conditioner Error Code E468

E468 indicates an output current sensor error on Inverter PBA1, which is the main inverter control board that drives the variable-speed compressor. The board's built-in current sensing circuit has detected a reading outside acceptable limits. The system shuts down compressor operation automatically to prevent hardware damage.

No. The unit will generally disable compressor operation when E468 is active, so cooling or heating output will stop. Attempting to force the system to run through repeated resets without addressing the underlying fault can cause additional damage to the inverter board or compressor. The system should remain off until the fault is properly diagnosed and repaired.

Repair costs vary depending on the specific model and labor rates in your area. Inverter PCB replacement parts typically range from roughly $150 to $400 or more depending on the unit, with additional labor costs on top of that. Getting a diagnostic quote from a certified LG technician before authorizing parts replacement is advisable, since compressor condition should also be confirmed before committing to a board replacement.

The first step is to power off the unit, wait a few minutes, and check that all wiring connections to the inverter board are secure before restoring power. If the error returns, the inverter PCB typically needs to be replaced, which involves working with high-voltage components and is best handled by a qualified technician. Attempting inverter board replacement without electrical experience carries a serious safety risk.

A power reset may temporarily clear the code if the fault was caused by a transient electrical event, but if the inverter board's current sensing circuit is genuinely faulty or there is a wiring problem, the error will return quickly. A reset alone is not a repair and should only be used as part of initial diagnosis to check whether the fault is persistent.