As an HVAC expert, I am often asked about the optimal operating time for air conditioners. Many people wonder how long their AC can run without being damaged. The truth is, in theory, an air conditioner can run 24 hours a day without any problems. However, this is not recommended as it can lead to wear and tear and eventually cause the unit to break down. The operating time of an air conditioner depends on its cooling capacity.
Smaller wall and window units can operate for up to eight hours straight before needing to rest, while larger units can run for 10 to 12 hours. But just because your AC can run for 24 hours doesn't mean it should. If it constantly operates this way, it could be a sign that something is not working properly. Before purchasing an air conditioner, people often inquire about its operating time. While there are no specific limits, you can leave your AC on for 24 hours or even seven days a week.
However, it's important to regularly check the thermostat while using the unit. In places like Wisconsin with humid summers, air conditioners often have to work overtime to keep the house cool. At our HVAC company, we frequently receive questions from customers about leaving their AC on constantly. The answer is yes, it's okay to do so. However, the condensing unit should not operate continuously as this can cause the motor to burn out quickly.
If you notice that your condensing unit is constantly running, it's a sign that your AC system needs to be repaired. To understand why this is the case, let's take a look at cooling cycles and how long the condensing unit should operate under normal conditions.
