Unit emits a smell

Most of the time, a thorough cleaning will help reduce musty smells. However, if excessive mold and mildew growth is inside the AC, the smell will be difficult to eliminate.
How to prevent odors & mildew buildup?
Perform regular maintenance and cleanings. Clean the air filter, drain pan and drain lines on a regular basis. Refer to your instruction manual for more information and proper instructions on how to clean your filters.