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Heating and cooling systems include air filters, which homeowners must change regularly. The recommended frequency is every 90 days, or every 60 days for homes with pets. If you’ve ever wondered why this task matters, the guide below provides a brief overview of a few of the problems you avoid by changing the filters.

What Happens When HVAC Systems Run With Dirty Filters?

1. Poor Air Quality

HVAC filters are designed to catch airborne particles, including dust and pet dander. When air blows through clogged filters, these contaminants are sent back into the living space. Allergens can trigger uncomfortable reactions in residents, such as sneezing, headaches, and coughing. 

2. Equipment Strain

heating and coolingWhen air filters are clogged with dust, the HVAC system has to work harder to push air through the vents. The heightened power demand stresses the components, shortening the unit’s life span. Clean filters prevent frequent breakdowns, reducing maintenance costs in the long run.

3. Higher Energy Bills

When airflow is strangled by blocked filters, air cannot efficiently reach every part of the home. Since your space doesn't quickly reach the temperature setting in the thermostat,  the heating and cooling equipment has to run for longer to produce the desired effect. The result is wasted energy and higher utility bills each month.

4. Freezing

Evaporator coils hold refrigerant, the liquid designed to remove heat from the air. With nowhere else to accumulate, air contaminants may eventually settle on these coils, affecting their ability to move refrigerant. When they can’t remove the heat from the air as they’re designed to, they freeze. The compressor and fans also cycle continuously to try and cool the home. Replacing the filter improves airflow and gradually defrosts the unit.

 

 

If your heating and cooling unit experiences a breakdown, call Wilson Heating of Marietta, OH. Their technicians are certified by the North American Technician Excellence (NATE) organization and efficiently diagnose HVAC system issues. Highly committed to customer service, they offer a 100% satisfaction guarantee on all of their services. Call (740) 373-7874 to schedule an appointment, or visit them online for a look at their offerings.

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