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Why Is My HVAC Not Blowing Cold Air?

Why Is My HVAC Not Blowing Cold Air?

There are few things more frustrating than an HVAC not blowing cold air on a hot day. HVAC systems are large machines with various components, meaning that the cause of an air conditioning unit not working is hard to identify without consulting air conditioning specialists

As AC repair service providers in the Florida Keys, we wanted to share some possible reasons as to why your ac unit is not functioning properly. 

Reasons Your HVAC Isn’t Working

Dirty Air Filters

A common problem we run into with AC repair work in the Florida Keys is dirty and clogged air filters. Air filters remove dust and debris that may be circulating in your home. AC filters, on average, should be changed anywhere from every 3 months to every 12 months. The frequency of changing depends on the size of your home and other factors such as pets. View our past article on how and when to change your AC filter for more information. 

A clogged air filter can prevent the necessary airflow of your HVAC unit, causing your unit to shut off or not function properly. This problem will only get worse with time and can begin affecting other components of your unit, so make sure to check and replace filters regularly.

Refrigerant Leaks, or Low Levels

A refrigerant is used to absorb heat and cool the air circulating in your home. If you have low levels of refrigerant, usually caused by a leak, your unit will not be able to cool the air properly. You will need an AC repair service provider to fix the leak and add more refrigerant. 

You may need a new refrigerant, as Freon, a refrigerant commonly used in the past, has been discontinued for residential and commercial air conditioning. This is due to environmental reasons, in addition to the air conditioning industry is constantly being modernized. 

Check out Tesla’s HVAC System for interesting information on how AC units may look in the future. 

Issues With Evaporator Coils and Condensers

Residential AC inspection services are an important part of maintaining a properly working HVAC system. A common issue that can occur if not inspected and cleaned yearly is build-up in the evaporator coils and condensers. Coils are susceptible to mold and debris build-up, causing the unit to not function. Condensers are susceptible to general wear and tear and should be examined if your HVAC unit is not blowing cold air. 

Blocked or Clogged Vents

Like air filters, a blocked or clogged vent can prevent the circulation that is needed to keep your home cool. It would help if you regularly cleaned your vents and ducts to prevent this. How frequently you should be cleaning depends on a variety of factors. Check out our past blog on how often to schedule AC vent and duct cleanings for more information.

When you arrange for service, a service technician will check your vents and ducts to ensure they are functioning properly. 

Thermostat Issue

Prior to calling an AC service provider, make sure to double-check your thermostat. Make sure the thermostat is set to ‘auto’ or ‘cool.’ If this does not fix the issue, your thermostat may require batteries that need replacing. If none of these resolve the issue, contact an air conditioning service provider to inspect your unit. 

HVAC and AC Services in the Florida Keys

At All Brands Corp. AC Inc., we offer full AC services to the Florida Keys for both residential and commercial units. We provide full AC servicing from maintenance, to replacement, to installation, even offering emergency AC services to the Florida Keys. View our HVAC and refrigeration services if your HVAC unit is not blowing cold air.

Contact us today to schedule an appointment with our air conditioning specialists. 

Related Readings:

How to Protect Your A/C Unit From Storms and Hurricanes

Do I Need a Smart Thermostat?

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We offer 24/7 Emergency Service to all of our customers. You can always count on AirPro Experts to get to you fast and get the job done right the first time. We use state-of-the-art diagnostic equipment to find the source of your heating and air conditioning problems and fix them fast.