Find the mode button. Find the mode button on the air conditioner remote control, aim the remote control at the central air conditioner, and press the mode button continuously to switch the air conditioner mode. Kingair air conditioner is a brand owned by Guoxiang Kingair, and 1966 originated from Taiwan Province Province. It is a well-known large manufacturer of central air conditioner and refrigeration equipment. Is a modern enterprise integrating scientific research, production, sales and installation services.