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Serving The Fresno & Madera Area

70th Anniversary of Purl's Sheet Metal & Air Conditioning

Serving The Fresno & Madera Area


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Purl's Sheet Metal & Air Conditioning Blog

Replacing Air Filters on a Regular Basis

Purls - Filters-2

Replacing the air filters regularly in your home or business is a must.   A clogged air filter can cause trouble with your HVAC system.  It can cause additional stress to your heating and cooling equipment that can lead to costly breakdowns or even equipment failure.  This can lower the indoor air quality of the air you breathe.  The air filters need to be changed on a regular basis or it can block and restrict air flow through your ductwork and HVAC system.


Your AC system is designed to remove heat from your home or business.   The fan pulls the warm air and passes it over evaporative coils.  The fan pushes the newly generated cool air through the ductwork system to cool your home or business.   When the filter is clogged it reduces the airflow into the system and can cause many problems.   It can reduce the cooling capacity and in turn reduce the comfort level.   It can even cause the coils to ice up and the system to struggle and make noises.  During the hot summers in Fresno CA, you want to make sure your equipment is working to capacity.  Poor operation can reduce the efficiency and lifespan of your equipment not to mention your comfort level.


Operating your heater with a clogged filter can be very dangerous.   A clogged filter does not allow enough cold air to pass over the heat exchanger and can cause the heat exchanger to crack.   When a heat exchanger cracks it can be dangerous.   It can leak carbon monoxide into your home or business.

Just like your car, your home’s heating and air conditioning system needs regular maintenance and service to keep it running properly.   Check your operation manual for the suggested filter changing requirements.  The best way to extend the life of your equipment is to have your HVAC system serviced, cleaned and inspected on a regular basis by a licensed professional.  During routine service your technician will replace the air filters and clean the components of your HVAC Air Filter.   At Purl’s Sheet Metal & Air Conditioning our service technicians can service your HVAC system, change your filters and help you maintain efficient operations.

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