Home DIY: 4 Signs Your HVAC System Needs Repair

HVAC system

Home DIY is both rewarding and fun, but you can’t fix something if you don’t know its broken. Learn the four major signs that your HVAC system needs repair.

(Image via Flickr by Kurayba)


Before its too late and you desperately need it, make sure your heating, ventilation, and air conditioning (HVAC) system is working properly. Home DIY may be appropriate, or you may need to call in a specialist. Either way, you can’t fix what you don’t know is broken.

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HVAC systems all require regular maintenance to run efficiently. In fact, it’s suggested that you should have your home’s HVAC system serviced about once a year. System leaks are harmful to the environment and can also be the cause of increased utility bills and higher maintenance costs. If you recognize any of the following issues with your HVAC system, then it’s a good time to perform some Home DIY or have it serviced.


Limited Airflow

If the registers are open and you still feel your home is not getting the proper amount of airflow, it could be time to replace or clean the filters. Regular cleaning of your HVAC system’s filters will ensure optimal performance. Time for some home DIY! If poor ventilation persists, it may be a sign of a more complex issue that should be left to a professional HVAC technician to take care of.

Strange Sounds From HVAC System

Those loud thumping or squealing sounds you’re hearing when you turn on the unit may indicate that it has an undersized duct system.  You’ll want to contact a trusted professional HVAC repair service to get to the root of the problem. Air duct design is a critical part of how energy efficient your home is. It’s a good idea to have a professional determine that your ventilation system has been properly installed and sealed. This establishes a balanced and sufficient airflow in the unit.

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Improper Air Balance

An unfortunate number of HVAC systems in homes operate in the 55 to 65 percent range before their air balance is tested. Scheduling regular maintenance is crucial to keeping your home’s HVAC system running at peak performance and to minimize the chance that it will develop issues that can cause improper airflow exchange. Dirty air filters and coils, a refrigerant leak, or frozen coils may be the culprits causing an airflow imbalance. A professional HVAC tech can offer a number of options to conquer indoor air quality threats.

Higher Energy Costs and Declining Health

Have you noticed a rise in your utility bill? A sudden change in your health? Leaky duct systems can cause numerous health issues by routing contaminants from your garage, attic, or crawl space back into your home. A well-designed, forced-air ventilation system will be efficient and compact. Good ductwork is mastered by precise calculations and design to minimize potential leaks. If you’re experiencing unusual spikes in your energy costs or have developed recent health issues, it could mean that there is an issue with the duct system.


Scheduling regular maintenance is crucial to keeping your home’s HVAC system running at peak performance. Old or faulty components within your HVAC system can be difficult to detect and cause many costly issues. Staying informed about your home’s HVAC system is vital to sustaining an energy-friendly residence.  If your heating and cooling system has experienced any of the issues mentioned above, it might be time to consider making an appointment with an HVAC technician to investigate and make any needed repairs.


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