Skip navigation

South Metro Atlanta's Choice

South Metro Atlanta’s Choice

Family-Owned & Operated Since 2001


Premier Heating & Air Blog

Why Can’t My AC Keep Up With the Heat?


This isn’t a fun situation to find yourself in: a hot summer day when you have to turn on your home’s AC to stay comfortable, but the air conditioner is just … not … making it. The system comes on, you feel cool air coming from the vents, but the house is still too warm. Maybe some rooms are fine, but others are swelteringly hot and its got your family complaining about it.

There may be a simple explanation for this and you’ll only need to do some basic troubleshooting. Or you may have a situation where you’ll need to call us for air conditioning repair in Conyers, GA. We’ll help you find out the best route to take … simply follow below.

Is this an old problem?

If your air conditioner has never been able to keep up with your comfort demands, the problem is likely a bad installation. Amateur installers often put in air conditioning systems that aren’t properly sized to cool the house, or they put in air ducts that don’t allow for the necessary airflow. In these cases, you’ll need to have expert technicians either replace the ductwork or the entire AC with an accurately sized one.

Check the air filter!

One of the most common reasons for an air conditioner to begin to lose its cooling capacity is because the air filter has been left in place for three months or more. The air filter on the HVAC cabinet needs to be replaced every one to three months, otherwise it will become clogged and cut down on airflow and comfort. If you’ve got a clogged AC filter, put it a new one and see if you get better cooling. (And stick to the regular schedule of filter changes throughout summer.)

Investigate the thermostat

Mistakes with thermostat settings can often slip under your radar, especially in a house with plenty of people who may be making adjustments to the thermostat without you knowing about it. The problem could also be that the thermostat is picking up incorrect temperatures due to miscalibration. This is something you’ll need professionals to fix—don’t keep lowering the thermostat to compensate.

Frozen evaporator coil

No, you shouldn’t see ice on the AC’s indoor coil. If the evaporator coil is frozen over, it won’t be able to draw heat from the air and cool down the house enough. You’ll need to have technicians find out what caused the frozen coil as well as defrost it. Please don’t try to scrape the ice off on your own since you may damage the coil.

Aging air conditioner

How long have you had your current AC system? If it’s been in place more than 15 years, a decline in cooling power usually means it’s time to have the system replaced. Getting an AC to 15 years is a good milestone, but it’s also the point where age and wear will start to catch up with it and result in a loss of cooling capacity—and probably a rise in bills. Consult with our professionals to see if it’s time to have a new system installed.

Experience the Premier Difference! We’ve been family-owned and operated since 2001 and we guarantee same-day service.

Comments are closed.