Air Conditioner Not Working
Why is the Air Conditioner Blowing Hot Air in My Home?

October 5, 2020

One problem that many homeowners in Neptune Beach, FL, encounter is the air conditioner blowing warm air. This can reduce your indoor comfort on a hot day, and it may indicate a larger problem with the unit. Here are some common causes for your AC system to produce warm air:

The Thermostat on the Heat Setting

Generally, the first step you should take if your air conditioner is blowing warm air is to inspect your thermostat. Ensure that your fan is set at auto, the system is set at cool and the temperature setting is below the room temperature by at least 6 degrees.

Clogged Filters

Reduction in airflow can have a negative impact on the cooling functionality of your air conditioner. An AC unit requires warm air flowing through the coils to operate efficiently. Airflow helps AC unit’s filters eradicate air pollutants from the air, providing the machine with clean air and boosting its efficiency.

An air filter clogged with debris and dust can completely block air movement in the unit, preventing the coils from emitting heat and forcing the fans to blow heat back into your rooms. To prevent this from happening, clean and change the filters as recommended and ensure that your system undergoes regular maintenance services.

Refrigerant Leak

Refrigerant is the fluid that enables the cooling process to take place. This substance is a closed loop; hence, you should never have liquid added unless there’s a leak in the coils or refrigerant lines. If there’s a leak, the system will lose its cooling power since it’ll lose the refrigerant charge.

The cooling loss can either happen suddenly or slowly depending on the leak size. In case this happens, a service technician will refill the refrigerant after repairing the leak.

However, if your machine is more than 10 years old, the highest probability is that it uses R-22 refrigerant, which has been phased out. You will want to think about replacing your machine with a less expensive alternative that uses R-410a refrigerant.

Frozen Evaporator Coils

A clogged air filter can force the evaporator coils to freeze. The reduced airflow prevents the coils from evaporating the condensation produced by the coils during the cooling process, resulting in freezing.

Warm air flowing through the coils also plays a significant role in preventing the coils from freezing. Thus, failure to receive enough airflow implies that the coil will get cold and cause the condensation to freeze. When this happens, the coils cannot absorb heat from the air, forcing the air conditioner to blow warm air.

To fix this issue, switch off the AC unit for two hours and let the evaporator coils thaw before you replace or clean the filters. Nevertheless, if the evaporator coils end up freezing again, contact a service technician as it may be as a result of internal issues with the AC unit.

The Outside Unit Is Not Getting Power

The AC system has two main units: the indoor unit and outdoor unit. The indoor unit can only blow air if the outdoor unit is functioning properly. Thus, if the vents are blowing warm air, it could be that the fuse is dead or the circuit breaker has tripped, stopping the flow of electricity to the outdoor unit.

To remedy this problem, inspect the fuse panel or circuit breaker to ensure that the circuit supplies power to the outdoor unit. If there’s a problem with the circuit breaker or fuse, contact a professional right away since it can be a sign of a huge problem.

Leaky or Disconnected Ducts

If a duct isn’t connected and has cracks or holes, it can negatively impact the airflow since the return air may have problems accessing the unit. Alternatively, the ducts may be losing the cooled air in your attic space and walls, making the AC system blow warm air.

If you can access the ducts, inspect them since duct leaks are a common issue caused by construction damage or rodents. You can also opt to contact a service technician to check the state of your ductwork system.

If your AC unit is blowing warm air, contact Ocean State Air Conditioning & Heating today. We have reliable and experienced service technicians who can help you attain your home comfort goals.

Image provided by iStock

Saving Energy in Your Home During the Holiday Season

Saving Energy in Your Home During the Holiday Season

The holiday season can be a fun yet costly time of the year, especially if you aren't energy efficient in your Jacksonville, Florida, home. From programming your thermostat wisely to giving the gift of efficiency, discover three ways to saving energy during the...

6 Symptoms of an Imminent Air Conditioner Breakdown

6 Symptoms of an Imminent Air Conditioner Breakdown

Air conditioning is a lifesaver in Jacksonville, FL, so a malfunctioning unit can be incredibly frustrating. It's important to make repairs as quickly as possible to prevent the issue from worsening and to keep your home at a comfortable temperature. Here are six...

How to Save Energy With Landscaping This Cooling Season

How to Save Energy With Landscaping This Cooling Season

Smart landscaping can help you save energy, give your kids a nice place to play and increase the value of your St. Augustine, Florida, home. You should keep the mature plants that are already in your yard since they're easier to maintain and better for lowering your...

3 Signs of Poor Indoor Air Quality in Your Home

3 Signs of Poor Indoor Air Quality in Your Home

Indoor air quality isn't something you can see, but it's certainly something you can feel. If you have indoor air pollutants in your Neptune Beach, Florida, home, you may experience several unpleasant symptoms. Watch for key indicators of poor indoor air quality so...

How to Make Your HVAC System More Efficient

How to Make Your HVAC System More Efficient

When it comes to saving energy in your Neptune Beach, FL, home, you take a lot of pride in the things that you've done yourself. There are things that professional HVAC contractors can do for you. There are also some steps that you can take yourself to minimize costs...

3 Benefits of a Variable-Speed AC System

3 Benefits of a Variable-Speed AC System

A variable-speed air conditioner can change its air handler's speed to match your home's cooling needs. While conventional single-speed air handlers work at just one speed and come on and off throughout the day, a variable-speed air handler works at a range of speeds....

6 Health Risks Stemming from Poor IAQ in Your Home

6 Health Risks Stemming from Poor IAQ in Your Home

Indoor air pollution in your Atlantic Beach, Florida, home can cause a host of health issues. Some are relatively minor, while others are more severe. Here are six health risks stemming from poor IAQ: Coughing, Sneezing and Watery Eyes Coughing, sneezing and watery...

How Hybrid Heating Can Keep You Warm This Winter

How Hybrid Heating Can Keep You Warm This Winter

Are you searching for an energy-efficient heating system for your Saint Augustine, Florida, home? If so, consider installing a hybrid heating system. Learn how a hybrid heating system combines an electric heat pump and a gas furnace for superior heating during winter....

How You’re Wasting Energy and Money in Your Home

How You’re Wasting Energy and Money in Your Home

Did you know that you may be wasting a lot of energy in your Atlantic Beach, Florida, home? Learn how you're wasting energy and money in your home this year. As a result, you'll be able to take steps to reduce your utility bills and live a greener life. Unnecessary...

Pin It on Pinterest

Compliance Settings
Increase Font Size
Grayscale
Simplified Font
Underline Links
Highlight Links
Reset
Close