Autorestart is a protective and comfortable function of the air conditioner, where after an unexpected power failure, the unit remembers the last settings (mode, temperature, fan speed) and automatically resumes operation when power is restored. This prevents overheating or hypothermia of the room and eliminates the need for operator intervention, which is particularly advantageous in server rooms, shops or recreational facilities without a permanent presence of the user. The function is usually active from the factory or can be optionally set in the service menu.