You turn on your AC when the first hot day hits and you notice that nothing but warm air seems to be coming from your vents. What could be causing this? There are a number of reasons why your AC unit might not be producing cold air that you should know about.
Check Your Air Filter
If your air filter hasn't been changed in a long time, or hasn't ever been changed, most likely it is very dirty and covered with dirt and debris. This debris will block the air flow, making it harder for your unit to cool down the air and harder for the air to flow from your house. If you do have a very dirty air filter, change it right away and see if this solves your problem.
Your air conditioner has two sets of different coils that are both very important for helping your unit cool down your home. There are coils both inside your home and inside of your actual AC unit. The inside coils help to absorb the heat from your house and the coils in the unit transfer heat to the outside. If these coils are dirty, the heat transfer becomes less effective and can result in warm air from your AC unit. Wipe these coils free from dirt and then check your AC unit to see if it starts to produce cool air.
If your AC unit doesn't have enough refrigerant, the air that passes through your unit can't cool very effectively. The refrigerant runs through the coils and helps to transfer out heat. If you are low on refrigerant, this process slows down and results in warm air. Check your refrigerant levels to see if this is responsible for your warm air. Since refrigerant never runs out, if you are low on refrigerant it is due to a leak and you need to call in a professional to have the leak found and fixed right away.
Your air conditioning unit is located outside, and it needs to have the proper airflow around it so it can let out hot air from the coils. Check to see if there are bushes, plants, trees or objects blocking your unit not allowing heat to escape. If your unit is blocked by plant life, think about relocating these plants to a different area of your home or yard.
If you have troubleshot your AC yourself and it still isn't blowing cold air, call in an HVAC technician. They will be able to more thoroughly troubleshoot, diagnose and then fix the problem so your house has cold air again. Contact a business, such as Flower Branch AC repair services, for more information.