When you turn on your air conditioning unit, the last thing you would like to do is question ‘why is my AC not blowing cold air”. If your AC is not working as well as it should be and you are wondering why, there might be a couple of things that could be causing the issue. In this short article we’re going to have a look into some reasons that your AC might not blow cold air and what you can do about it.
Air Conditioner Not as Cold as it Used to Be? Here’s 6 Reasons Why


There are a few various reasons your a/c unit is not as cold as it used to be. If your air-conditioner is not as cold as it used to be, even before the extreme heat, you may have one of these 6 issues that are triggering it.
1.) Your Thermostat
If your air conditioning system is not blowing cold air, the first thing to examine is your thermostat. The thermostat manages the flow of refrigerant into the system. If it is not set properly, it will not send enough refrigerant through the system to cool it down.
2.) Your Ductwork Is Not Big Enough
If your ductwork is too small, it will restrict air flow and prevent appropriate cooling. Make certain that all of your ducts are big enough for sufficient air flow. Also, make certain that you have no obstructions in the ducts such as insulation or furniture obstructing the way for air to move through them adequately.
3.) Duct Work Leak
If there is a leak in your ductwork, you will lose cool air from your system. This will result in warm air being blown out instead of cool air being blown out. Make certain that all of your ducts are sealed properly so that they don’t leak any cool air from inside of them and cause warmer temperatures in your home or business building.
4.) Dirty Air Filter
If you have a dirty air filter, it can cause your air conditioner not to cool properly. To fix this problem, you should clean up the filter by removing it from the inside of the system and washing it with soap and water. Once dry, re-install it back into place and turn on your system once again to see if this fixes the problem.
5.) Fan Motors Going Out
If there is an issue with the motor and it can not run at full speed or it keeps stopping or running slow, then the temperature will drop. This can happen because of an unclean fan motor or a damaged capacitor. You may need to change the fan motor if this happens.
6.) Low Freon
If you have a split system ac system, there are 2 main components that make up your cooling system. They are the condenser and evaporator coils. The purpose of freon is to provide a heat transfer medium between these 2 coils. When you have low freon levels in your system, it can impact how well your unit cools your house or business.


Proper Routine Maintenance Prevents AC Not Blowing Cold Air
Similar to any equipment, your central air system needs regular maintenance. Filters need to be changed and all other working components need to be inspected by a qualified professional. The standard recommendation is to have a HVAC maintenance tune up twice a year.
Routine maintenance can help identify issues before they become major problems that require pricey repairs or replacements. There are many things that can go wrong with your air conditioning unit. Here are some of the most common:
- The system isn’t running– If your a/c isn’t running at all, it might suggest there’s an issue with the breaker or circuit board or that there’s no power going to the unit.
- Air blowing into the house but not out– If this occurs, it could be due to the fact that there’s a clog someplace in the ductwork or because something else is wrong with your system (such as an electrical problem).
- Air blowing out but not cooling– This could be triggered by unclean filters or obstructed vents. These can both result in poor airflow through your home.
Have Your HVAC System Inspected By Professionals in Sandy, Utah
For any heating and cooling system, it is necessary to have the system inspected for safety, efficiency and cost effectiveness. The least expensive way to do this is by having a certified ac repair company come out and perform an inspection. Once again, this is vital to ensuring your heating and cooling system is operating effectively and efficiently. Give North Star Heating & Air Conditioning a call at (801) 285-9282 and arrange your ac inspection today.