To make a long article short…No your AC should not be running all the time. If it is, it means that it’s working too hard.
So, why is this happening, and what can you do to fix it?
Below is a guide we’ve written on this particular aspect of air conditioning maintenance. To diagnose this issue and right the wrong, follow the advice in this guide.
Operator Error
There are two main causes of a constantly-running AC. It might be that the system itself is not able to function properly. Otherwise, it’s operator error.
First, check the thermostat settings. If the fan is switched to “on” instead of “auto,” the fan will run constantly.
On the other hand, it could be the temperature setting. For example, if it’s the middle of summer and someone has set the AC to 43 degrees, it will run continuously. This is a ridiculous command that your AC will never be able to achieve.
Lastly, your thermostat might be running a program that is equally ridiculous. In this case, you might try to change the temperature setting, but then the thermostat changes it back automatically according to the scheduled program it’s running.
The bottom line is, make sure you understand how your thermostat works. Then, program it correctly.
Restricted Airflow
Blocked vents, dented ducts, or a clog somewhere in the system can restrict your AC’s airflow. When this happens, it can’t cool your house effectively, although it still runs constantly trying to do so.
The most common cause of this is a dirty air filter. Check it now and replace it if necessary. You should change it every three months or so to prevent it from restricting airflow anyway.
Next, check all return and supply vents for dust. Also, remove any floor vents and check them for debris.
A Refrigerant Leak
Another possibility is that the air coming from your AC isn’t as cold as it should be. When this happens, it keeps running and running in a futile attempt to cool the house.
One cause of this is a refrigerant leak. If this is the case, you might hear bubbling/hissing noises coming from your outdoor HVAC unit. You might also see the refrigerant leaking out in a puddle.
If you notice any of this, shut the system off and call for emergency HVAC repair right away. The refrigerant is toxic, so it’s imperative that you let a professional handle this problem.
A Dirty Condenser/Evaporator Coils
The condenser and evaporator coils are the components that remove the warm air from inside the house and expel it outside. When these are dirty, they don’t perform this function properly.
Check both of these out to see how they look. They’re the coil-looking things on both the indoor and outdoor units.
If they’re surrounded by weeds and other objects, remove these obstacles. However, if they are dirty, call a professional to clean them.
The System is Too Small
If your AC has always had this problem, it might just be the wrong size for your home. An undersized AC isn’t powerful enough to cool your home no matter how hard it works. In this case, you’ll need to replace your AC one that is appropriately-sized for your house.
Follow These Air Conditioning Maintenance/Troubleshooting Steps
If your AC is constantly running, keep this guide handy. Use it as a checklist and try out the air conditioning maintenance steps described above.
Does your AC require professional help? If so, contact us today so we can fix it right away.
