Why It Takes Time For My AC to Keep Up On Hot Days?

Jan 30, 2023
Air Conditioning

Welcome to Alfa Heating and Cooling, your reliable partner in keeping your indoor environment comfortable and cool. As experts in the field of HVAC systems, we understand that it can be frustrating when your air conditioning (AC) unit takes time to keep up on hot days. In this article, we will delve into the reasons behind this issue and provide you with actionable solutions to improve your cooling experience.

The Science Behind AC Cooling

To better understand why it takes time for your AC to keep up on hot days, let's take a closer look at how air conditioning works. AC units use a combination of cooling technologies, including refrigeration, compression, and evaporation, to remove heat and humidity from the air.

When the outdoor temperature rises, your AC unit needs to work harder to extract heat from the indoor air and maintain a comfortable temperature. The hotter it is outside, the more heat it needs to remove, which is why you might experience a delay in cooling during extremely hot days.

Factors Affecting AC Performance

Several factors can influence the performance of your AC unit on hot days. Let's explore them:

1. Size of Your AC Unit

The size of your AC unit plays a crucial role in its cooling capacity. If your unit is undersized for your space, it may struggle to keep up with the cooling demands on hot days. Conversely, an oversized unit may cycle on and off frequently, leading to inefficient operation and inconsistent temperature control.

2. Insufficient Insulation

Poor insulation in your home can result in heat seeping inside, making it harder for your AC unit to cool the space. Insulating your walls, attic, and windows can significantly improve your cooling efficiency and reduce the time it takes for your AC to keep up on hot days.

3. Ductwork Issues

Ductwork problems, such as leaks, disconnected segments, or accumulated debris, can impede the airflow and reduce the effectiveness of your AC system. Properly sealed and insulated ducts help deliver cooled air efficiently, ensuring your AC keeps up with the demand even during sweltering temperatures.

4. Thermostat Settings

Incorrect thermostat settings can lead to longer cooling cycles, delaying the time it takes for your AC to catch up on hot days. Ensure your thermostat is set to the desired temperature and consider using programmable thermostats to tailor cooling schedules based on your occupancy patterns.

5. Maintenance and Air Filter Condition

Regular maintenance and clean air filters are essential for optimal AC performance. Neglecting these aspects can lead to clogged filters, reduced airflow, and increased strain on the system, resulting in prolonged cooling times. Schedule annual AC maintenance and replace your air filters regularly to keep your system running at its best.

Improving Your Cooling Experience

At Alfa Heating and Cooling, we are dedicated to enhancing your cooling experience. Here are some tips to help your AC keep up on hot days:

1. Schedule Professional AC Maintenance

Regular maintenance by our skilled technicians ensures that your AC unit is in top shape. We will clean components, check for refrigerant leaks, lubricate moving parts, and perform any necessary repairs to optimize your system's performance.

2. Upgrade to an Appropriate Sized Unit

If your current AC unit is inadequate for your space, consider upgrading to a correctly sized unit. Our experts can assess your cooling needs and help you choose the right unit to ensure efficient and effective cooling.

3. Improve Home Insulation

Proper insulation acts as a barrier against unwanted heat infiltration. Our team can inspect your home's insulation and recommend improvements to prevent excessive heat gain, enabling your AC to cool your home more efficiently.

4. Optimize Ductwork

Our skilled technicians can inspect and repair any issues with your ductwork. Sealing air leaks, removing debris, and ensuring proper insulation will enhance airflow and maximize your AC system's performance.

5. Upgrade to a Programmable Thermostat

A programmable thermostat allows you to set different temperature zones and schedules, ensuring your AC system works efficiently with minimal energy waste. Our technicians can install and guide you on the best ways to utilize your programmable thermostat.


In conclusion, understanding why it takes time for your AC to keep up on hot days can help you take proactive steps to improve your cooling experience. Factors such as AC unit size, insulation quality, ductwork condition, thermostat settings, and maintenance play significant roles in your AC's performance.

At Alfa Heating and Cooling, we are ready to assist you with all your HVAC needs. Contact us today to schedule maintenance, discuss upgrading your AC unit, or explore ways to optimize your cooling system.