Florida runs on air conditioners. Functioning ACs help us manage humidity levels and withstand temperature spikes, allowing us to enjoy the state’s tropical climate in comfort and style.
So, how long can an air conditioner run continuously before it starts breaking down? As an industry-leading heating and air company in Tallahassee, FL, Cooper’s Plumbing & Air is here to answer this question.
Determining the Maximum AC Run Time
Theoretically, a central AC system can run 24 hours a day, seven days a week. Once you turn the thermostat to the “on” setting, it should continue until your electricity disconnects or the motor burns out. Wall or window ACs can generally run continuously for eight to 12 hours before they start overheating.
While a central system doesn’t have an air conditioner run time limit, you should monitor it nevertheless.
How an AC Usually Runs
A typical AC compressor runs in cycles of eight to 20 hours throughout the day. Once you set the thermostat, this cycling should suffice to keep the indoor temperature at the desired level. However, if you leave your AC off for a long period and then turn it on, it may run continuously until it reaches the desired temperature.
From there, it should cycle as usual:
- The running cycle occurs when the compressor works to help the room reach or maintain temperature and humidity. It usually lasts for 15 to 20 minutes.
- The system turns off after the run cycle, allowing the compressor to rest and not overwork itself. The break may last from five to 15 minutes between each cycle.
- Cycle lengths tend to vary in exceptionally hot areas with consistently high temperatures. Instead of the usual breaks between cycles, the next cycle might start almost immediately.
Why You Should Avoid Running Your AC Without a Break
The cycling system aims to extend your unit’s longevity. Your AC unit needs to meet specified HVAC codes and standards, and running it without a break can cause it to fail. When it does, you may not have access to air conditioning when you need it most.
Also, your AC uses electricity to function. By leaving it running when you don’t need it, your energy bills will spike, sometimes going hundreds over what you usually pay. You’re wasting money you could be using for other household or lifestyle necessities.
On top of it all, AC units, like any other appliance, wear out over time. So, how long can an air conditioner run continuously? The answer is likely not very long if most of its parts don’t work anymore from constant use.
Instead of trying to test the limits of your air conditioner, you may benefit more from running it in moderation. Regular maintenance can also prolong its lifespan by catching faulty parts before they become major issues.
What Leads to Continuous AC Operation?
Now, you know why using your AC continuously can wreak havoc on your system, specifically on a regular day without excessive heat. However, perhaps you’re looking for other reasons your AC keeps running despite normal outdoor temperatures. A constantly running air conditioner often indicates one or more of the following:
#1. Dirty Air Filters and Ducts
Although homeowners should replace their air filters every 90 days or so, many forget about it. Then, dust, dirt, and other pollutants start blocking airflow, making the AC work harder and run continuously to cool the property.
Try replacing your air filters if you know how. You can also try cleaning around the air ducts to ensure that the grime the air filter should’ve caught isn’t blocking the way. Otherwise, you can rely on one of our team members to do it at a reasonable cost.
#2. Thermostat Issues
Remember when we mentioned leaving your AC setting “on”? Instead of allowing your system to automatically check the room’s temperature and cycle based on the sensors, “on” keeps your AC running no matter what. You may have accidentally left the system “on” instead of “auto,” causing the AC to run continuously.
If your system is on “auto,” the thermostat sensors or your temperature settings may not be working. Check your temperature settings to see whether they are too low for the season. For Florida, around 72 to 75 degrees usually provides the most comfort for the least energy usage.
If your settings look fine, there may be a technical issue, like faulty thermostat sensors. From here, you can contact a trustworthy HVAC technician to help.
#3. Poor AC Sizing
Your AC may also be too small or large to keep your house cool. Air conditioners can provide certain amounts of cooling, which may or may not work depending on the property size.
Based on complex mathematical formulas, the general household would take 15 to 18 minutes to cool by one degree. An AC that is too small for a household will run continuously to try and reach the desired temperature because it doesn’t have enough power to do so in regular cycles.
An AC that is too large for the property will provide quick cooling, but it won’t be substantial enough to stay that cool. Then, the AC has to cycle again, turning off quickly when the sensors pick up the brief temperature change. This process is called “short cycling.”
An ill-suited AC requires a new AC installation instead of repairs. We offer various financing options to make the change more affordable.
Expert AC Care in Leon County, FL
After leaving your AC running, how long can an air conditioner run continuously before it needs maintenance? If you’ve exceeded your AC operation duration limits by accident, there’s no need to worry.
You can call Cooper’s Plumbing & Air for assistance. We provide top-quality customer service with licensed and insured technicians to work on anything HVAC. Our team has been helping homeowners in Tallahassee, Midway, Bradfordville, and nearby cities for over 20 years, continuing to improve and update our services.
Call us at 866-464-7132 or visit our contact page for a free quote today.