Mitsubishi Electric · MXZ Air Conditioners
This error indicates that the capacity code detected by the system is incorrect or invalid. This usually relates to the outdoor unit's configuration for its maximum operating capacity.
Click steps to track your progress.
Review the outdoor unit's installation manual for the precise capacity code settings required for your specific model.
Ensure that any dip switches or internal software settings related to the capacity code are configured correctly.
Verify that the outdoor unit is compatible with the total capacity of the connected indoor units.
Power cycle the system by turning off the main power for at least 5 minutes, then restart.
If the error persists, a service technician should check the outdoor unit's control board and EEPROM.