Mitsubishi Heavy Industries · R410A Systems
An address system error has occurred, which typically happens in multi-unit systems where each unit requires a unique address for communication. This indicates a conflict or misconfiguration.
Click steps to track your progress.
Turn off the entire multi-unit system at the main power supply.
Wait for 30 seconds, then restore power.
If you are an installer, verify the address settings of all indoor and outdoor units according to the installation manual.
If the error persists, contact a qualified technician for system reprogramming.