HVAC Systems · Drainage Issues
HVAC Musty Smell
Musty or moldy odors from HVAC system, indicating standing water in drain pan or mold growth in ductwork.
Common symptoms
- Musty odors from vents
- Mold visible in unit
- High humidity
Common repairs
- Drain pan cleaning
- Ductwork cleaning
- Mold treatment
Pro launch updates
Get notified when Pro launches, plus a monthly code-change digest. Email only — no account required.