August 11, 2020

There is nothing as frustrating as walking into your home on a hot day in summer to discover that your air conditioning system is not blowing sufficient cold air. There are various causes for your AC unit not cooling your house as it should. The solution might be as simple as replacing the air filter with a clean one, but there are more complicated problems that could require professional assistance. Here are some of the reasons why a cooling system fails to accomplish its job.

Dirty Air Filter

As the air filter clogs with debris and dirt, the efficiency of your AC unit drops, forcing it to work harder and possibly causing internal damage. Depending on the manufacturer’s recommendation, change your filters every 30 to 90 days to keep your air conditioning system in good working condition.

Poor Insulation and Leaking Ducts

If your air conditioner’s ducts are not well-insulated, cool air might rise in temperature before it enters your rooms. Have the insulation and integrity of your ducts checked regularly to avoid overworking your cooling equipment.

Poorly Calibrated Thermostat

For your AC unit to work optimally, you need to keep your thermostat set at an appropriate temperature that is comfortable for maximum efficiency but not too cold. Of course, this depends on the accuracy of your thermostat. If you suspect it is incorrect, have it calibrated.

Equipment of the Wrong Size

When purchasing an air conditioner, you need to match its size to your home’s square footage to avoid overworking the unit. An improperly sized cooling system will work harder to cool your space, leading to failure and breakdown of the internal components.


By paying attention to the factors highlighted above, you can ensure that your air conditioner produces enough cool air in your house without sustaining internal damage. If you live in Erie, PA, and your AC unit is not cooling your home properly, you can call in a technician from J.J. Agnello Heating & Air Conditioning Inc. Our team of experienced professionals can diagnose and solve the problem. We also provide heating and cooling installation, repair, and maintenance work as well as indoor air quality services. Contact us today, and we’ll set up an appointment on your behalf.

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