Why Your Air Conditioning Has a Bad Smell

Air conditioners are supposed to discharge odorless air. When they smell bad, don't try to cover it up with an air freshener. Just like with any other bad odor in your home, you want to find its source. Until that's known, you don't know if you have a serious or minor problem on your hands.

Musty Smell

This is the smell of mold. Mold grows in areas with moisture. Since your air conditioner removes moisture from the air, it is possible that it's not properly discharging it. A drain pan can fill with water and overflow if a condensate line clogs up. If humid outside air is leaking into your ducts, condensation will also produce moisture and cause mold growth.

Another cause of a musty odor is a dirty filter. You can try replacing the filter to see if the problem goes away. If not, a St. Albans WV air conditioning service professional can find the odor's source and correct the problem.