“Hello! I use my air conditioner regularly and clean the air filters but it lately has had a strange vinegar smell to it when it runs. Is there a way to fix this?”
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A vinegar smell from your air conditioner usually means there’s some mold or mildew buildup inside, especially around the filters or water drain areas. Even if you clean the filters regularly, moisture can get trapped elsewhere. To fix it, try these steps: Remove and clean the filters thoroughly with warm soapy water and let them dry completely before reinstalling. Check and clean the drain pan and hose if your unit has one, since stagnant water can cause odors. Wipe down accessible internal parts with a mixture of water and white vinegar or mild bleach solution to kill mold. Make sure the unit is running long enough to fully dry out between uses, and consider running it on fan mode for a while after cooling. If the smell persists, a professional cleaning might be needed to get rid of hidden mold.
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