If your AC smells musty, first check the drain pan. It may need to be cleaned or replaced. If there is excess moisture in the ducts, you may have high indoor humidity levels. Check for a blocked condensate line or frozen coils. If left unmaintained, mold, mildew, and sludge can build up in the condensate line, which leads to clogs and a dirty sock smell in your home.

Musty smell from AC unit?

If your AC smells musty, first check the drain pan. It may need to be cleaned or replaced. If there is excess moisture in the ducts, you may have high indoor humidity levels. Check for a blocked condensate line or frozen coils. If left unmaintained, mold, mildew, and sludge can build up in the condensate line, which leads to clogs and a dirty sock smell in your home.

Why does my AC smell?

If your AC smells musty, first check the drain pan. It may need to be cleaned or replaced. If there is excess moisture in the ducts, you may have high indoor humidity levels. Check for a blocked condensate line or frozen coils. If left unmaintained, mold, mildew, and sludge can build up in the condensate line, which leads to clogs and a dirty sock smell in your home.

AC smells like mildew?

If your AC smells musty, first check the drain pan. It may need to be cleaned or replaced. If there is excess moisture in the ducts, you may have high indoor humidity levels. Check for a blocked condensate line or frozen coils. If left unmaintained, mold, mildew, and sludge can build up in the condensate line, which leads to clogs and a dirty sock smell in your home.

Air conditioner smells musty?

If your AC smells musty, first check the drain pan. It may need to be cleaned or replaced. If there is excess moisture in the ducts, you may have high indoor humidity levels. Check for a blocked condensate line or frozen coils. If left unmaintained, mold, mildew, and sludge can build up in the condensate line, which leads to clogs and a dirty sock smell in your home.

Why does my air conditioner smell?

If your AC smells musty, first check the drain pan. It may need to be cleaned or replaced. If there is excess moisture in the ducts, you may have high indoor humidity levels. Check for a blocked condensate line or frozen coils. If left unmaintained, mold, mildew, and sludge can build up in the condensate line, which leads to clogs and a dirty sock smell in your home.

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A man with facial hair in a long sleeve gray shirt holds his nose in disgust.

HVAC Tips & Tricks6min read

Notice Your Air Conditioner Smells Funny? Here’s What It Means.

Warmer weather is coming, and many of us will be turning AC units on in the next month only to find the unit is pumping strange odors through the house. Find out what odors are normal and when to get expert help if your air conditioner smells strange.

Published:
April 20, 2023

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