What Does Your Error Code Mean?

Before you look up your code: error codes indicate where a system stopped, not always why. Codes vary by model and series (e.g. Daikin VRV III vs VRV IV), so treat these as a starting point, not a final diagnosis. For any code involving the compressor, refrigerant circuit, or high voltage, switch the system off and call a qualified technician rather than resetting repeatedly — repeated power-cycling can mask a fault or damage components.