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JN Electrical Temperature Control, Inc Blog

Why Your AC Isn’t Getting the Whole House Cool


This is a common problem that people run into with their air conditioning systems. The AC appears to be working normally, and there’s cool air coming out of it, but the whole house isn’t getting the amount of cooling it’s supposed to. This uneven cooling can mean some rooms are too hot, usually rooms more distant from the center of the house.

A good central AC is supposed to cool the entire house—it’s designed and sized for that purpose. If you got an AC that can’t evenly cool your home, there are several possibilities that may require replacing the air conditioner or, in most cases, calling our team for air conditioning repair in Hartwell, GA

The AC is too small

If this is a new air conditioning installation, then the problem may be that whoever installed the system in the first place put in a unit without enough cooling power to cool the whole house. Amateur installers often make this mistake because they don’t do the proper sizing steps. Unfortunately, if this is the case, the only solution is to have the entire unit replaced. 

The air filter is too dirty

Here’s a much simpler problem, and it’s one you can solve on your own. Check the blower filter for your HVAC system: that’s the filter that’s either behind the return air vent cover in the house or in a slot between where the ductwork meets the blower in the HVAC cabinet. This filter will get clogged after one to three months, and this will make it hard for the AC to cool enough air. Put in a clean filter to see if this fixes the trouble.

Leaks in the air ducts

The issue may come from the ductwork rather than the AC itself. Ductwork can suffer damage over the years from aging, construction, humidity, and even insects and vermin. Any air leaks will allow cooled air to escape before reaching the rooms, causing the uneven heating you’re experiencing. To solve this problem requires calling for professionals to test the ducts and then seal up any holes to restore the airtight seal of the ventilation system.

Malfunctioning blower

The blower is the fan responsible for the circulation of air through the HVAC system. It draws air through the return air ducts and then pushes this warm air over the evaporator coil to cool it and then into the supply ducts to the rooms. If the blower malfunctions and starts to slow down or turn on and off at the wrong times, it will create uneven cooling. 

Dying air conditioner

An AC that’s coming near to the end of its service life will often struggle to reach its usual cooling capacity. If your air conditioning system is more than 15 years old, then uneven cooling often means that the system is ready to retire. You don’t have to make the decision on your own: talk to our technicians and they’ll give your AC a thorough check to see if it’s time to replace it. 

JN Electrical Temperature Control, Inc works hard to ensure customer satisfaction with custom comfort solutions. Call us to solve your home cooling problems. 

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