Air conditioners make a lot of things. First and foremost—the reason you have an air conditioner—they make cold air. They make some noise. It shouldn’t be anything alarming or sudden, but ACs certainly aren’t silent. They also make some moisture, as the humidity in the air condenses against the cold evaporator coils like droplets on a cold soda can.
One thing your air conditioner definitely should not make is ice. Yes, you do want the system to create coldness. But ice can actually have the opposite effect! Does that seem a little bizarre? We’ll explain exactly what we mean, why ice on your air conditioner is a bad sign, and what to do about it.