When you turn on your heat, do you smell it along with feel it?
It’s not uncommon for your HVAC system to emit a smell when it first turns on, and oftentimes, it’s not dangerous. Find out here if that smell coming from your HVAC system is normal or if there is cause for concern.
Common HVAC Smells
Mildew
The most common reason for a musty or mildew smell is moisture trapped in the system. Moisture can accumulate in the ducts and air handler and create an opportunity for mold and mildew to grow.
The solution: A professional HVAC inspection and cleaning will clear any mold or mildew buildup on HVAC components. Keeping your home’s humidity levels between 30 and 50 percent also helps to control the moisture level in your home.
Dirty Socks
Bacteria or mold growing on the condenser coil can create a smell similar to dirty gym clothes or socks.
The solution: Clean the evaporator coil and change your HVAC filters to remove the mold and the smell.
Burning
When you turn your HVAC on for the first time during the heating season, you may smell burning surface dust burning off the components. The smell often dissipates as the system continues to run.
The solution: Allow the system to run. If the burning smell persists, the system might have overheated components or a clogged filter. If the burning smell continues, have the system checked by a licensed professional.
Rotten egg
The smell of rotten eggs coming from your HVAC system could indicate a natural gas leak, which is a serious issue that requires immediate attention.
The solution: If you smell rotten eggs, immediately turn off your furnace and open windows. Call an HVAC technician to inspect the system and make needed repairs.
How to Prevent HVAC Smells
- Regular Maintenance: Schedule annual HVAC inspections and cleanings. A professional technician can catch small problems before they become big (and stinky) issues.
- Change Filters Regularly: Dirty filters not only reduce efficiency but can also contribute to musty odors. Change your air filter every 1-3 months, depending on your usage and filter type.
- Keep Your Ducts Clean: Consider having your air ducts cleaned every 3-5 years, especially if you’ve noticed persistent odors. This helps remove any accumulated dust, mold, or debris.
- Control Humidity: Use dehumidifiers where necessary and maintain indoor humidity levels to avoid moisture buildup in the system. Mold loves humid environments, and humidity can also cause rust and corrosion in the HVAC components.
- Seal Leaks: Ensure that your ductwork is properly sealed to prevent air from leaking out, which can carry dust and odors throughout the home.
Annual Heating Maintenance From Acree Plumbing, Air & Electric
Your home’s heating system should provide a comfortable environment not a guessing game of what’s that smell!
At Acree Plumbing, Air & Electric, our team of licensed professionals offers an annual heating maintenance plan to keep your system operating efficiently and effectively. Since 1967, Acree Plumbing, Air & Electrical has been the one-stop shop for electrical, heating and plumbing needs for the Tampa Bay and Sarasota communities.
