The level of discomfort that comes from AC not blowing cold air is high because certain settings are required to enjoy the unit better. For instance, using an AC demands that you lock all doors and windows and let the AC remove heat and disperse fresh air around the house or office space.

This setting is even more suitable for office space since leaving the office door wide open doesn’t work. This makes the problem of AC not blowing cold air a significant issue that needs to be fixed immediately. The reasons your Air Conditioner unit is not blowing cold can be just anything, and sometimes it may even be something you do yourself. For instance, it may be that you only need to replace a dirty air filter. If you’re not sure what’s wrong with your air conditioner, call for help from reputable companies like Direct AC to determine what is wrong with your AC and provide appropriate repair.

In this article, we’ll examine some of the possible reasons your Air Conditioner is not blowing cold air. With this knowledge, you will know what to do once you notice it, and you will be able to determine whether this is something you can fix or whether you need the service of an HVAC technician.

Below are the reasons your AC might not be blowing cold air:

1. When the thermostat setting is Incorrect

Once you feel like your AC is no longer blowing cold air, the first thing to check is your costco hvac system setting. This is where the Air Conditioner unit is directed to work as expected unless it is tampered with. So check to see if no one has tampered with this setting and confirm if it is set to cool. You will need to switch the control back to cool where it is not. Once you’ve done this, wait to see if the setting is now working efficiently.

2. When the air filter is dirty or clogged

A dirty or clogged air filter can cause all sorts of problems for your AC, and preventing it from blowing cold air is one of those problems. The air filter works as a purifier by helping you remove the dirt and dust from the air your AC intends to distribute into your house.

However, doing this means that the air filter collects all the dust. Where this continues, the filter becomes so dirty that it cannot remove dust from the air and gets clogged, and prevents the AC from blowing cold air by blocking airflow. To fix this, all you have to do is find the air filter and replace it with a new one.

3. When there is a refrigerant leak in the unit

Your AC may not blow cold air if the refrigerant is leaking. The AC contains a chemical known as a refrigerant and is an integral part of the cooling system because it is also responsible for removing the heat in the door air and passing it outside. So, the AC won’t blow enough cold air when this refrigerant is leaking. To fix this, you also need to contact an HVAC expert who can help determine the leak and proffer an appropriate solution.

4. When the condenser unit or coil is blocked

An Air Conditioning system comes in two units; you have the indoor and the outdoor units. The outdoor unit works as the condenser unit, and it works to evacuate heat in your home. This is why an AC does not just cool your home; it maintains an optimal temperature by removing the heat in the house.

However, where the condenser unit is blocked, it simply means the system can no longer remove the heat in the house. Hence, even the cold air will not serve the desired purpose. In addition, the condenser unit comes with a thin metal coil called ‘fins.’ These fins can accumulate dirt and dust, which may block the coil.

You can try cleaning the coil by rinsing it with water to sort this out. However, where this does not work, it is recommended that you contact an HVAC expert to look at it. Direct AC is one of the efficient companies offering AC repair and maintenance services that may help provide the right solution to the problem.

5. When the evaporator is frozen

Aside from the coil in the condenser unit, an AC indoor unit also comes with an evaporator coil that removes warm air from the house and allows the cooler to distribute fresh and cold air immediately. While this works very fast and you will not notice, it is an essential part of the system and can cause your AC to stop working.

A frozen evaporator coil can cause several problems, including inadequate cooling or not cooling at all. However, this is not something you can fix at home, so you will need the assistance of an expert in this field.

Conclusion

While you may be thinking that there is something wrong with your Air Conditioner, you may be dealing with smaller capacity; that is, the Air Conditioning system installed in your home is not the right size. It may take some time for you to notice this, especially if the temperature outside is not very hot. However, as the temperature increases, the AC becomes unable to provide sufficient cold air in the house, and this can cause discomfort.

To resolve this, you will need to replace your existing AC with a new one or buy a smaller unit to assist the installed one. Either way, this means paying more money. Hence, you should select the right AC for your home. An HVAC technician can help you determine the right AC size for your home. This is why you must involve a company or local service provider before purchasing your unit.

Aiden Anderson
Author

Aiden Anderson earned his Master’s in Environmental Engineering from the University of California, Davis, focusing his 20-year career on HVAC innovation and indoor air quality. Since joining our platform as a freelancer in 2020, Aiden provides insights into climate control solutions, eco-friendly technologies, and system optimization. His background includes roles in environmental impact assessment and HVAC system design. His prior roles include engineering positions inmanufacturing and energy consulting. In his leisure time, Aiden enjoys woodworking and volunteering in community energy awareness programs.

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