Six Common Air Conditioner Smells and How to Fix Them

Haris Durgutovic • August 23, 2023

Summer days in Minneapolis call for a functional AC, but what happens when you're greeted with an unexpected and unpleasant aroma? Identifying the cause can pave the way for a swift solution. Perfect Temp Heating and Cooling, your go-to HVAC contractors in Minneapolis, is here to elucidate some common air conditioner smells and their remedies.

Musty or Moldy Smell:

Cause: This often indicates mold or mildew inside the air conditioning ductwork or on the cooling coils.

Solution: Regular cleaning of your unit can make a difference. If the smell persists, consider an air conditioning repair service. For thorough inspection and cleaning of your air conditioning duct work, Perfect Temp Heating and Cooling has you covered.

Rotten Egg Smell:

Cause: Though it's rare for this smell to originate from an AC, it's typically a sign of a gas leak.

Solution: Safety first! Shut off your AC and immediately contact an air conditioning repair service. Residents of Minneapolis can rely on our AC repair Minneapolis team for prompt assistance.

Burning Smell:

Cause: An overheating motor or electrical components can release this odor.

Solution: Prioritize safety. Turn off your AC and seek a professional's help. At Perfect Temp Heating and Cooling, our AC repair Minneapolis team is just a call away.

Chemical Smell:

Cause: A refrigerant leak often results in this sharp, chemical-like odor.

Solution: Refrigerant is crucial, but it's harmful if inhaled. Switch off your unit and immediately reach out to an air conditioning repair service. Our HVAC contractors in Minneapolis are well-equipped to manage such issues.

Exhaust or Gasoline Smell:

Cause: This can indicate that parts of your AC are overheating.

Solution: Always act swiftly with such smells. Turn off your air conditioner and schedule an inspection. For residents around Minneapolis, our HVAC contractors in Minneapolis are always ready to assist.

Foot-like or Gym Socks Smell:

Cause: Stagnant water in the system can lead to bacterial growth, causing this peculiar aroma.

Solution: Ensure proper drainage and routine cleaning. If the smell remains, consider checking your air conditioning ductwork. Remember, our AC repair Minneapolis experts at Perfect Temp Heating and Cooling can efficiently handle it.


In conclusion, confronting an unusual smell from your air conditioner should never be taken lightly. While some smells hint at minor concerns, others signify significant issues. With Perfect Temp Heating and Cooling, you get the reassurance of a proficient air conditioning repair service that can tackle any problem, be it a simple AC repair in Minneapolis or an intricate revamp of your air conditioning ductwork.


Trust in consistent maintenance to stave off most of these odors. Entrust your AC's upkeep to the experts at Perfect Temp Heating and Cooling – ensuring your comfort and safety is our primary aim.

By Haris Durgutovic September 9, 2024
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