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What Is Causing That Smell From Your AC?


Unusual smells from your air conditioning unit can be more than just an annoyance; they can indicate underlying issues that may affect not only how well your system functions, but your health and comfort as well. Understanding the potential causes of these smells and addressing them promptly is crucial for maintaining a healthy indoor environment. If you detect any of the strange scents coming from your system, be sure to contact us for air conditioning repair in Salt Lake City.

Mold and Mildew

Mold and mildew thrive in moist, dark environments, making your AC unit an ideal breeding ground, especially if there’s condensation build-up or if the unit isn’t draining properly. The smell produced by mold and mildew is often described as musty or earthy. 

This odor is not just unpleasant but can also pose significant health risks, especially for individuals with allergies or respiratory issues. To prevent mold and mildew, ensure that your AC unit is regularly serviced, and the filters are replaced or cleaned every 1-3 months.

Electrical Issues

A burning smell from your AC can be alarming and is often a sign of electrical problems. These issues could stem from overheating components, faulty wiring, or a failing motor. Ignoring this smell can be dangerous, as it may indicate a risk of fire. If you detect a burning smell, turn off your AC immediately and contact us. 

Refrigerant Leaks

Refrigerant is crucial for your AC to cool the air effectively. When there’s a leak, the refrigerant can produce a sweet, chemical-like smell. This not only impacts the efficiency of your cooling system but also poses environmental hazards and health risks. Inhaling refrigerant can lead to serious health problems, so if you suspect a refrigerant leak, don’t hesitate to contact us to assess your system. One of our technicians will locate and fix the leak, and recharge the system.

Dirty Filters

Dirty filters are one of the most common causes of unpleasant smells from an AC unit. When filters become clogged with dust, dirt, and debris, they can produce a stale or dirty sock smell. This not only affects the air quality in your home but also reduces the efficiency of your AC system, leading to higher energy bills. To avoid this issue, replace or clean your filters regularly every 1-3 months. 

Dead Animals

Sometimes, small animals like rodents or birds can find their way into your AC unit and unfortunately become trapped. When this happens, their decomposition can cause a strong, foul odor. If you suspect that an animal is the source of the smell, it’s best to have a professional remove the remains and clean the unit thoroughly. 

Identifying and addressing unusual smells from your AC unit is essential for maintaining a healthy and comfortable indoor environment. Don’t hesitate to contact us if you detect any of the odors described above.

See what keeps our customers saying “I Love My Design Comfort” and contact us to schedule an appointment for AC repair in Salt Lake City, UT.

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