Reasons Your HVAC May Not Be Cooling In Extreme Heat

Severe heat is an issue that affects many people across the nation. Extreme heat conditions can take a toll on your energy costs as well as your environmental comfort. If you have an HVAC unit, you may start to wonder why the temperature is not matching the system settings. This could be due to a number of reasons. Here are some of those reasons and why you may need residential HVAC repair. 

BTU Strength

You may notice a label for BTU strength when you buy an HVAC system or perform routine maintenance. This label shows the amount of power the HVAC system has. The lower the power, the lower the ability to maintain the temperature you set during extreme temperatures. If you are in a moderate climate this number may not be as vital as it is in extreme conditions. If you are setting your thermostat for a specific temperature, but the temperature in the house remains at uncomfortable levels, you may have a system that does not have the BTU strength to battle the temperatures. This issue will result in the need for an upgrade to your HVAC system by a residential HVAC repair technician. 


If you have not maintained the appropriate levels of refrigerant in your HVAC system, it can result in fluctuating temperatures within the home. The refrigerant in the system helps the HVAC unit perform under extreme temperature conditions. Without the right levels, you may find the system is not performing well or even at all. This issue can lead to higher temperatures within the home and the motor of your HVAC system overworking or freezing. Your residential HVAC repair technician can refill the refrigerant and help determine if that is the cause of the issues you are having. 

Consistent Loss of Power

When you have high temperatures, you may also have corresponding power outages and rolling blackouts. When these power outages happen, it can cause fluctuations of power in your HVAC system. Your system may need to be reset or turned off and left off for a specified amount of time in order to reset. In some cases, the power issues may cause the fuse to blow. If you do experience a blown fuse, your HVAC repair technician can help replace the fuse and get your system working normally again. 

If you find that your system may need residential HVAC repair, contact your area HVAC technician. They will schedule a time to diagnose your HVAC system and determine the next steps to take to repair the issue. If they find there are other issues, including the need for a new HVAC system, the technician will discuss those issues and solutions with you.

For more information on residential HVAC repair, contact a professional near you.

About Me

Warm and Cozy or Cool and Comfortable with HVAC

Hi, my name is Kari, and as a mom, I think it is my responsibility to make sure my family is comfortable. Some days that means making cookies for a sad kid or painting our walls in inspiring colors. Other days, it means troubleshooting the HVAC system to make sure we are all warm and cozy in the winter and cool and comfortable during the summer. If you want to read about HVAC, get tips on picking the right system or learn to troubleshoot issues, you have found the right blog! Please, get comfortable and enjoy reading! I hope these posts inspire and inform you!