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Why Does My AC Keep Overheating in Birmingham, AL?

Close Up AC system

An AC that runs too hot is uncomfortable and can lead to expensive repairs or complete system failure if you ignore it. Understanding why your AC may be running too hot and taking steps to address the issue can help you stay cool all summer long. Here are some common reasons why your AC overheats in Birmingham, AL.


An AC’s lifespan is about 15-20 years, according to the U.S. Department of Energy. An older system may not be able to cool your home as well as a new one can, leading to higher energy costs.

Additionally, an old AC unit will need help to keep up with the ever-increasing demand for cooling during peak summer days. This can cause the compressor motor to overwork or break down, leading to an even higher energy bill.

Faulty Thermostat Setting

A faulty thermostat setting resulting in an incorrect temperature set-point can significantly cause overheating. When you incorrectly set the thermostat, it causes the air conditioner or furnace to run longer than necessary and at higher temperatures, causing increased energy consumption.

To prevent this from occurring, inspect the thermostat setting regularly, and replace the batteries in digital units if necessary. Additionally, it’s vital to ensure that you set the temperature settings according to the manufacturer’s instructions and climate conditions.

Poorly Maintained Condenser Coils

The purpose of the condenser coils is to dissipate heat from the refrigerant. If professional technicians don’t adequately maintain the coils, the heat can’t be disbursed through the coils as it should. To avoid overheating due to poorly maintained condenser coils, have the unit inspected regularly as part of your maintenance plan and replace any worn or damaged parts as needed.

An AC that overheats can cause significant damage, so regular maintenance is essential to avoid problems. Contact Total Comfort Heating and Air for AC repair services if your AC is overheating. We can provide regular maintenance, repairs or a complete AC replacement in Birmingham, AL to ensure your air conditioning system runs correctly and efficiently.

Image provided by iStock

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