4 Common Causes of AC Blowing Warm Air

Most Common Causes of AC Blowing Warm Air

Have you ever faced a situation wherein your AC suddenly started blowing warm air? Most of us cannot deny that we have been in situations like these where the AC started acting weird out of nowhere. One would consider themselves lucky to fix an issue like this with a change in the thermostat settings. But what if the thermostat settings are just fine and the issue is something else. Well, in this post, we discuss just that. Let us walk you through some of the most common causes of an AC blowing warm air.

1. Low (or Leaking) Refrigerant

A relatively common cause of an air-conditioner blowing warm air is a low or leaky refrigerant. Refrigerant is a liquid that runs through your AC, and its main job is to enable cooling. The refrigerant’s job is to absorb environmental heat and provide cool air. A leaking refrigerant potentially lowers the system’s cooling power (depending on the size of the leak). Do NOT put in more refrigerant without repairing the leak; it might result in costly repairs in the near future. A good idea would be to leave the job to a technician.

2. Dirty Condenser Coil

A dirty condenser coil could be one of the many reasons your AC is blowing warm air. A condenser coil’s job is to release the heat outside. But in the process, it tends to get exposed to all sorts of outdoor elements (dust, foliage, trash, et al.). This, in turn, affects the coil’s functioning, thereby leading to your AC throwing warm air.

3. Clogged Air Filter

It may sound strange, but the fact is that your air conditioner relies on the warm air of your room for its cooling. The AC absorbs warm air from the room, cools it down with the refrigerant and cooling coils’ help, and then throws it (in the form of cooler air) back into the room. But during the process of absorbing air from your room, the air filter removes dust or any other contaminants from it. In this process, the air filter tends to get clogged, reducing the amount of warm air that an AC can absorb. As a result, the cooling gets hampered. To avoid this, you must clean your air filters on a regular basis.

Contact Halltec HVAC one of the top-rated  AC contractor Greenville, NC  for best AC services.

4. Duct Issues

If your AC is blowing warm air, it could be a duct-related issue. The most common duct issue is closed or blocked vents that don’t allow ducts to throw back the cool air into the room. Another duct-related issue is the duct getting clogged due to lack of maintenance. If you have been neglecting your air conditioner’s maintenance, the chances are that your AC duct has accumulated dust and debris, which is preventing proper airflow. Similarly, any leaks, cracks, or holes in the ductwork can lead to loss of cool air from the system, thereby resulting in your AC throwing warm air.

Are you looking for an air conditioning repair contractor in Greenville, NC?

If you face any issues with your air conditioning unit, we at Halltec HVAC are here to help. We are one of the most reputable HVAC repair companies in Greenville, NC. Our team of experienced HVAC technicians is committed to providing the best services to our clients. To schedule an appointment, call us at 252-221-3850.

Top 3 AC Filters for Your HVAC System

Most Popular AC Filters for Your HVAC System

Replacing the air filter on a regular basis can work wonders for your HVAC system. It helps boost the HVAC unit’s efficiency and reduce energy bills. Ideally, one should change their HVAC unit’s air filters every 2-3 months, but just in case the HVAC unit is exposed to a lot of dust, dirt, dander, and other pollutants, the replacement should be more frequent.

 

Now that you know how important air filters are, let us shift the focus to choosing the right air filter for an HVAC unit. There are several air filter types available in the market. We, however, will focus our discussion on the three most common air filters that are regarded the best for any HVAC unit. Let’s take a look.

1. HEPA FILTERS

HEPA stands for High-Efficiency Particulate Air. HEPA air filters are a type of pleated mechanical filter that can remove a minimum of 99.97% of dirt, dust, mold, pollen, bacteria, and similar airborne particles that are 0.3 microns (µm) or more in size. HEPA filters provide one of the highest levels of protection against harmful microorganisms and other air components that may be detrimental to your and your family’s health.

 

  •     Pros: One of the major advantages of using HEPA filters is their efficiency in purifying the air. The engineers have designed it to efficiently capture larger pollutants (pollen, pet dander, etc.) and keep you safe. Most importantly, they are budget-friendly and easy to remove. You do not need to change them every year.

 

  •     Cons: The downside of using HEPA filters is – they cannot capture fumes, odors, gasses, and other pollutants, such as mold spores, etc. Pollutants like the mold that get stuck on the filter reduce the HVAC system’s efficiency, thereby reducing the air filter’s expected lifespan.

 

2. ELECTROSTATIC FILTERS

As the name suggests, electrostatic filters work on the principle of electrostatics. The electrostatic filters are made of cotton and paper fibers that act as magnets for all the harmful dust and airborne particles. They create a static that traps the harmful allergens and prevents them from entering the HVAC system.

 

  •     Pros: Electrostatic filters are recyclable. You can easily use them again. They are budget-friendly and help you save on your money. Plus, they also help improve indoor air quality.

 

  • Cons: They fail to handle larger pollutants such as dust and mold spores. And therefore, they are not beneficial for patients with respiratory disorders.

3. UV FILTERS

UV filters or Ultraviolet filters use short-wave UV light that kills harmful microorganisms (viruses and bacteria). These have germicidal radiation, which acts as a disinfectant. However, they are not that effective in screening against pollutants like dust.

One probable threat of UV filters is – they can transform oxygen into ozone which can be very dangerous to the health. This can lead to respiratory issues ranging from minor symptoms like coughing, chest pain to major respiratory issues like worsening of an existing asthma patient’s asthma condition.

 

  •     Pros: An important benefit of using this filter is that it can even destroy harmful pollutants such as mold and germs, thereby preventing respiratory issues.

 

  •   Cons: Disadvantages of UV filters is – they are quite costly to install. They fail to capture gases, cigarette smoke, and fumes. Most importantly, they are ineffective against some of the most common pollutants like dust and allergens.

 

If you still have any doubts and need help choosing the right air filter for your HVAC unit or are looking for an AC contractor in Greenville, NC, we at HALLTEC HVAC are here to help. We provide one of the most reliable AC repairs in Greenville, NC, and nearby areas. We can help you with your HVAC unit’s repair, replacement, or maintenance-related issues. Call us at 252-221-3850 and schedule a technician visit today.