When you come home from work and find that your house is hot, you might wonder why your AC system is not cooling it like it usually does. If you hear your AC system running, it might cause you to wonder what is going on with this system. When an AC system runs but does not cool, it could be due to one of the following four reasons.
1. You Have an Issue With the Thermostat
The first cause of a system running but not cooling is issues with the thermostat. You can begin by checking the thermostat to see if you have it set correctly. If someone turned up the temperature and if it is set to "On" instead of "Auto," you might be able to fix the problem yourself. You should switch it to auto and turn the temperature down to see if this works.
2. You Have Not Changed the Filter in a Long Time
An AC system will also run without cooling a house if the filter is too dirty. A dirty filter prevents an AC system from functioning properly. The system will attempt to cool your house by turning on and running, but it might not be able to convert the warm air due to a restriction with the air filter. If you discover that the filter is dirty, you can replace it to see if this solves the problem.
3. Your System Has a Leak
A central AC system cools the air by extracting heat from the air. For this to occur, the system needs enough coolant in it. If the coolant level is low, the system will run but have trouble extracting the heat. As a result, you will feel warm air coming from the vents. To determine if you have a leak, you will need to hire an HVAC company. They can test the machine and measure the coolant level. If the coolant is low, they can add some to the system and find and fix the leak.
4. Your Compressor Is Shot
The other common cause of this problem is a bad compressor. The compressor is a vital component of a central AC system, and its main job is to assist with eliminating the hot air your system uses to cool your home. If this component is not working, your system will run without cooling your house.
To find out what is wrong with your system, contact a company that offers AC repairs in your city.