Your HVAC system may include a forced-air furnace and AC, ductwork, and perhaps a whole-home ventilation system. These systems and units supply heated, cooled, and ventilated airflow to your Indianapolis home. But, how do you really know if these units are working as efficiently as they should be? What follows are common signs that your HVAC may be working improperly and what to do about it.

HVAC Working Improperly: Unbalanced Airflow

The ductwork system is supposed to be designed and installed to deliver even airflow throughout a home. Unfortunately, unbalanced airflow is a common problem in many homes due to poor ductwork design and/or installation.

Unbalanced airflow creates problems for comfort and energy efficiency, and it means your HVAC system isn’t working at optimal performance. Common reasons for unbalanced airflow are duct leaks and incorrectly sized ducts. These problems should be repaired by your HVAC technician.

HVAC Working Improperly: Reduced Return Airflow

Related to balanced airflow, for an HVAC to work properly, you need adequate return airflow. Reduced return airflow is caused by a clogged air filter and/or obstructions of air to return grilles.

  • Filters: Be sure to change your air filter before it gets clogged with dirt and debris. A clogged filter hinders return airflow back to the HVAC blower.
  • Airflow obstructions: Make sure furniture isn’t blocking air-supply vents. Jumper ducts and grille transfers can be installed to increase supply air to return grilles.

HVAC Working Improperly: Noisy HVAC System

Unusual noises are more signs that your HVAC is working improperly. If you hear any of the following noises from the air ducts or your furnace, call your HVAC technician.

  • Clamoring or rattling. These noises from the air ducts may mean they are loose or disconnected.
  • Scraping. If you’re hearing metal scraping sounds, there could be a problem with the blower motor.
  • Banging or booming. Banging or booming noises could indicate a buildup of gas in the furnace. This is a dangerous situation that could crack the heat exchanger.

If you are having problems with your HVAC working improperly in your Indianapolis-area home, contact the professionals at Mowery Heating, Cooling and Plumbing today.

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