Why Foul Smell Comes from Ac?

All air conditioners work by converting hot air into cold air. ... These droplets of water should drain out via the AC duct, but at times the moisture and leftover water causes fungus and bacteria to grow inside the AC ducts. This causes a foul mouldy stink in your AC which is similar to the smell of dirty, old socks.

How do I get rid of the smell in my air conditioner?

Blow compressed air from a distance to ensure that internal components do not get damaged. Use a brush or a smaller piece of cloth to clean the finer dust particles in the front and rear of the unit. Clean the vent and the duct carefully with some cleaning solution and then clear out the cleaning solution with water.

Why does my AC air smell bad?

When excess moisture accumulates inside air ducts and vents, it's caused by high humidity levels or a drainage leak. If you smell something musty as soon as you turn on the AC unit, there's a chance that mold and mildew have made their way into your ductwork.