LG Air Conditioner Error Code E563

E563 indicates a software version conflict between the indoor unit's MICOM controller and the DVM INV outdoor system. The indoor unit is running firmware that predates the July 2011 compatibility requirement. The system raises this fault to prevent improper operation between mismatched components. A technician must verify compatibility and either update the firmware or replace the indoor unit PCB.

No, a simple power reset will not clear E563. The fault is caused by an underlying software version mismatch that persists regardless of how many times the unit is restarted. The error will return every time the system attempts to initialize communication between the indoor unit and the DVM INV outdoor system until the firmware is updated or the PCB is replaced.

If only a firmware update is needed and the unit is compatible with the DVM INV system, costs are primarily for the technician's time, typically ranging from $75 to $200 depending on the service provider and region. If the indoor unit PCB must be replaced, part and labor costs combined could range from $200 to $600 or more depending on the specific board required and local labor rates.

This error requires checking and potentially updating the MICOM firmware on the indoor unit PCB, which requires a specialized LG service tool and knowledge of the DVM INV system. Most homeowners will not have access to the required software flashing equipment. Professional service is strongly recommended for this repair.

The system is designed to flag this error precisely because the indoor and outdoor units cannot communicate reliably with incompatible software versions. Running the system in this state is not recommended, as the units may not coordinate properly. The air conditioner should be serviced before extended use.