Problems existing in modern Sonata IGE automatic constant temperature air conditioning

This is normal. If the temperature you set is higher than the room temperature, the system ECU will default that your environment needs to be heated, and warm air will be blown in to raise the indoor temperature. Generally, the heating in automobile air conditioner needs to preheat the cooling water in the radiator water tank, and the air conditioner refrigeration compressor will not be turned on (automobile air conditioner is not a ground source heat pump). Please read the user manual carefully. If you buy a car, the service station should give it to you. The user manual is made by the automobile manufacturer, which basically includes the description of all the automobile loading equipment.