Ducted Air Conditioning Maintenance

by Harold Achicanoy on Jul 02, 2024

Ducted Air Conditioning Maintenance

Maintaining a ducted air conditioning system is essential to ensure its efficiency and prolong its lifespan. Regular maintenance not only improves the system's performance but also guarantees a healthy indoor environment. Here is a comprehensive guide on how to maintain a ducted air conditioning system.

1. Regular Filter Cleaning and Replacement

Why It's Important: Dirty filters can restrict airflow, reducing efficiency and causing the system to work harder, which can lead to higher energy bills and potential damage.


  • Locate the air filter in the return air grille.
  • Remove the filter and inspect it.
  • If the filter is reusable, clean it with a vacuum cleaner or wash it with water. Make sure it is completely dry before reinstalling.
  • If the filter is disposable, replace it with a new one.
  • Check and clean or replace filters every 1-3 months, depending on usage and manufacturer recommendations.

2. Inspect and Clean Ductwork

Why It's Important: Dust, debris, and mold can accumulate in the ducts, affecting air quality and system efficiency.


  • Inspect the ductwork for any visible signs of dirt, dust, or mold.
  • Use a vacuum with a long hose to remove dust and debris from accessible areas of the ductwork.
  • Consider hiring a professional for a thorough duct cleaning every 3-5 years.

3. Check the Thermostat

Why It's Important: A properly functioning thermostat ensures the system operates efficiently and maintains the desired indoor temperature.


  • Verify that the thermostat is working correctly by setting different temperatures and observing the system's response.
  • Replace the thermostat batteries annually.
  • Consider upgrading to a programmable or smart thermostat for better control and energy savings.

4. Inspect and Clean the Condenser and Evaporator Coils

Why It's Important: Dirty coils can reduce the system's ability to cool your home and cause it to overheat.