hello, the products that implement the work with water or liquids, suffer from erosion in their parts that contain metallic materials, so it is rare for me if you mention that it is "new", but I suppose it is because of the temperature changes, try to open the equipment and check the part you mention that is the air flow and this is controlled by a fan and a resistance that is usually a nickel chrome alloy for heating the air so to speak. check, lubricate and clean the fan and in terms of resistance you should do a test if it works the easiest is with a measuring device called multimeter (you can buy it in an electronics store the cheapest), you measure on a lower scale of ohms With the Ω symbol, it should measure approx. 20 or more, if it measures a value it means that in another part of the circuit it is damaged, usually it is a thermal fuse, in this case you must disassemble it and buy it in an electronics store. Greetings, I hope and serve you.