Troubleshooting Extreme Heat and Your Air Conditioning

Troubleshooting Extreme Heat and Your Air Conditioning

Experiencing difficulty in cooling your home to the desired temperature during excessive heat can be frustrating. This issue is common, especially in areas with extreme summer conditions. Here are some factors to consider and steps you can take to resolve the problem:

AC System Capacity

If your air conditioning unit is undersized for your home, it may struggle to reach lower temperatures, particularly during extreme heat. Checking the system's capacity and comparing it to your home's size and insulation is crucial. An undersized AC can lead to inefficient cooling and higher energy costs. For optimal performance, consider upgrading to a properly sized system.

Thermostat Location

The location of the thermostat can also affect its accuracy. If it's located in a warmer area, such as near a sunny window, it may not accurately reflect the temperature of the rest of the house, leading to inefficient AC operation. Place the thermostat in a central and shaded area to ensure accurate readings and optimal performance.

Airflow Issues

Blocked vents or dirty air filters can restrict airflow, making it harder for your AC to cool effectively. Ensure that vents are unobstructed and filters are clean. Regularly cleaning or replacing air filters is essential for maintaining proper airflow and improving efficiency.

Insulation and Sealing

Poor insulation or air leaks can lead to cool air escaping and warm air entering, making it difficult for the AC to maintain lower temperatures. Check windows, doors, and the insulation quality to ensure they are properly sealed. Sealing gaps and improving insulation can significantly improve your AC's performance.

Refrigerant Levels

Low refrigerant levels can hinder the cooling process. If you suspect this might be an issue, it's best to have a professional check it. Regularly consulting with HVAC professionals can help you diagnose and address any refrigerant-related issues.

System Age and Maintenance

Older systems may not perform as efficiently as newer, more modern models. Regular maintenance, including cleaning coils and checking components, is crucial for optimal performance. Setting up a maintenance schedule with an HVAC technician can help prevent common issues and extend your system's lifespan.

If your AC consistently struggles to cool your home, particularly during extreme heat, it may be wise to have a professional HVAC technician evaluate your system. They can identify any issues or recommend upgrades if necessary.

Moreover, you might be doing something wrong. Lower the temperature of the upstairs unit as well. Always keep the upstairs unit only 1 or 2 degrees warmer than the downstairs unit. This is crucial in the summer as the upstairs unit will be doing the most work due to heat rising. Similarly, in winter, the downstairs unit will do the most work as warm air rises. By maintaining a consistent temperature difference, you can ensure both units are working efficiently and extending their lifespan.