Top 10 Causes of HVAC Airflow Problems

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Top 10 Causes of HVAC Airflow Problems

AC Unit

When AC problems arise, there’s one common culprit – the airflow. Issues with the airflow are often associated with Hudson heating and cooling systems, and they can leave your home without any way to control the temperature. Learn about the ten reasons you could have issues with your airflow and find out how to fix them.

1. Pressure Imbalance

If you are beginning to think you have a poltergeist in your home, you might have a pressure imbalance. The issue causes your whistling noises and slamming doors. Additionally, you might feel drafty spots in your home. 

2. Blocked Vents

At times, your HVAC doesn’t perform the way it should. When this occurs, stand in front of one of your vents. There may not be air flowing out of the vents, which is indicative of a blocked vent. If someone covered the vent with furniture or paper, you wouldn’t feel cool air until you move it.

It’s also possible someone closed the vent. By opening the vent back up, you restore the airflow. 

3. Obstructed Condenser

Perhaps the easiest airflow issue to address, a blocked condenser unit doesn’t require a costly fix or any special tools. Leaves and other debris can accumulate around the unit and limit the flow of air. To remove the blockages, clean the space around the condenser. 

There is an easy step you can take to prevent this from happening. When you install your HVAC system, make sure you don’t have any plants near the exterior unit. If you have bushes or long grasses nearby, keep them trimmed and far from the unit. 

4. Clogged Filter

Believe it or not, something as simple as a clogged filter can keep your HVAC system from working. If you can’t remember the last time you cleaned your filters or you know you’re overdue, get out the ladder and change your filters.

When you have dirt and other particles in your filter, the air can’t easily get through and make its way into your system. You end up with hot and cold spots, as well as stuffy air. As your HVAC works hard to push air through the particles, your system becomes more likely to break down.

4. Dirty Ducts

When you have dust in your HVAC ducts, your system suffers. While the air can push through a little dust, it can’t make its way past piles of it. Dirty ducts reduce the airflow and affect your system’s heating and cooling. If you want to prevent this from happening, you should hire an expert to clean your ducts once every few years.

In some cases, the obstruction is a result of leaks in your ducts. The walls of your ductwork weaken over time and eventually cracks or develops holes. If you suspect leaky ducts, call a professional and have them perform an inspection. 

5. Broken Thermostat

Despite being one of the simplest components of your HVAC, the thermostat can keep the air from flowing properly. If the thermostat is broken or has a low battery, you could experience airflow issues.

6. Slow Fan

A blower fan is responsible for circulating air from your ducts into your home and HVAC system. When you have a slow blower fan, the airflow will also be slow. 

The fan could be slow because of a broken blower motor or because of grime on the fan blades. If you call out an HVAC technician, they can diagnose the issue and either fix the motor or clean the blades. 

7. Dirty Coils

The condenser coil on your HVAC plays an essential role in the cooling of your home. By removing the heat from the air, your coil allows cool air to be reintroduced back into your home. 

The condenser coil is a part of your exterior unit, which means it has exposure to the elements. Over time, the coil gets covered in debris. When the coil is dirty, it can’t release enough heat to keep your home cool.

Fixing this is as easy as having an expert come out and clean your coils. However, it’s even better to prevent this by scheduling annual maintenance.  

8. Low Refrigerant

In addition to experiencing airflow issues, you may also notice your air feels warmer than usual. This combination is a sign of low refrigerant. Generally, low refrigerant is caused by a leak in the system. A small puncture in the line is all it takes for your system to show signs of trouble.  

A refrigerant leak could be a hazard to your health. As soon as you notice this problem, call your Hudson heating & cooling specialist. They can identify and repair the leak to restore your cold air. More importantly, they can safely handle the situation.

9. Oversized AC

Although many people have the mentality that bigger is better, there’s no truth to this when it comes to your HVAC system. A system that’s too large causes many issues, including poor airflow. 

If you have an oversized AC, it will cycle on and off frequently. Your home may never seem to be at the right temperature. To remedy this, you need to have an HVAC technician install a new system. They can guide you in the search for a brand new system that meets your needs. 

10. Outdated Design

If you recently renovated your home, your AC might not be able to keep up with your new needs. Whether you built a new addition or rearranged your layouts, the HVAC system may not be able to handle the changes. 

For proper cooling, you should consider working with an experienced professional. They will evaluate your setup and advise you on ways to improve your cooling and heating. A few simple changes may be all you need to address the issue. 

Call Us for Your Hudson Heating and Cooling

The next time you notice trouble with your heating or air, don’t hesitate to call in a pro. Here at Stellar Techs, we want to help make your home comfortable again. To schedule a service call or to learn about our preventative maintenance plans, call us now.