Musty Smell From AC Unit: Causes, Health Risks & Easy Fixes
A musty smell from an AC unit usually means moisture buildup inside the system, allowing mold, mildew, or bacteria to grow on coils, drain pans, or ductwork. If the odor is strongest when the AC first turns on, the problem is often microbial growth inside the unit. This guide explains the causes, health risks, and […]
