Common Air Conditioning Issues in Late Summer and How to Fix Them

As summer peaks in August, your air conditioning system is likely working harder than ever to keep your home cool and comfortable. However, this increased demand can lead to a variety of issues, especially if your AC unit is not properly maintained. In this blog, we’ll explore some of the most common air conditioning problems that arise in late summer and how you can address them to ensure your system runs smoothly for the rest of the season.

1. Reduced Cooling Efficiency
Problem:
During the late summer, you might notice that your air conditioner isn’t cooling your home as efficiently as it did earlier in the season. This could be due to clogged air filters, dirty coils, or even low refrigerant levels.
Solution:
Start by checking and replacing your air filters if they’re dirty. Clean the condenser coils, which can accumulate dirt and debris over time, reducing the system’s efficiency. If these steps don’t improve performance, it may be time to have a professional check the refrigerant levels and inspect for any leaks.

2. Frequent Cycling On and Off
Problem:
If your air conditioner frequently turns on and off without reaching the desired temperature, it’s known as short cycling. This issue can be caused by a variety of factors, including an oversized unit, a malfunctioning thermostat, or a clogged air filter.
Solution:
First, check and replace the air filter if it’s dirty. Ensure that your thermostat is functioning correctly and is set to the appropriate temperature. If the problem persists, it’s a good idea to have a professional HVAC technician evaluate whether your unit is properly sized for your home and check for any other underlying issues.

3. Warm Air Coming from Vents
Problem:
One of the most frustrating late summer AC issues is when warm air blows from your vents instead of cool air. This can happen for several reasons, such as a refrigerant leak, a malfunctioning compressor, or dirty coils.
Solution:
Check the thermostat to make sure it’s set to the correct temperature and mode. If the problem continues, inspect the outdoor unit for signs of damage or debris around the compressor. Cleaning the coils may help, but if you suspect a refrigerant leak or compressor issue, it’s best to call in a professional for a more thorough inspection.

4. Unusual Noises from the AC Unit
Problem:
Late summer can bring out strange noises from your air conditioning unit, such as banging, clicking, or hissing. These noises often indicate loose parts, debris in the fan, or refrigerant leaks.
Solution:
Turn off the AC and inspect the outdoor unit for any visible debris or obstructions. Tighten any loose screws or components that may be causing the noise. If you hear hissing, it could indicate a refrigerant leak, which requires professional attention. Don’t ignore unusual noises, as they can lead to more significant issues if not addressed promptly.

5. Increased Energy Bills
Problem:
As your AC works harder in the late summer, you might notice a spike in your energy bills. While some increase is expected, a significant jump could indicate inefficiency or an underlying issue with your system.
Solution:
Ensure that your system is running efficiently by replacing air filters, cleaning coils, and sealing any air leaks in your home. Consider scheduling a professional tune-up to optimize your AC’s performance and identify any potential problems that could be driving up your energy costs.

6. Water Leaks Around the AC Unit
Problem:
Water pooling around your indoor AC unit is a common late summer issue that could be caused by a clogged condensate drain line, a frozen evaporator coil, or a leak in the system.
Solution:
Check the condensate drain line for clogs and clear it if necessary. If the evaporator coil is frozen, turn off the AC to allow it to thaw and check for restricted airflow that may have caused the freeze. If you can’t identify the source of the leak, it’s time to call in a professional to inspect and repair the system.

7. Humidity Issues
Problem:
In late summer, your AC might struggle to keep indoor humidity levels in check, leading to a muggy and uncomfortable environment.
Solution:
Ensure that your AC unit is appropriately sized for your home, as an oversized unit can cool the air too quickly without removing enough moisture. Regular maintenance, such as cleaning coils and replacing filters, can also improve humidity control. If high humidity persists, consider adding a dehumidifier to your system.

Late summer can be tough on your air conditioning system, but by staying vigilant and addressing issues as they arise, you can keep your home comfortable through the season’s end. Regular maintenance and prompt attention to problems are key to preventing breakdowns and ensuring your AC operates efficiently.

If you’re experiencing any of these common late summer AC issues, Air Comfort Heating & Air Conditioning is here to help. Our team of experienced HVAC professionals can diagnose and resolve any problems to keep your system running smoothly.