AC preventive maintenance

Help! My AC is Blowing Warm Air.

May 25, 2021

When the heat and humidity reach summer highs in Northern Virginia, the last thing you need is for your AC to go on the fritz. Fortunately, it’s not the end of the world if your AC system starts blowing warm air. In most cases, it’s caused by something that can be quickly and easily corrected.

Your AC Filter Is Dirty

It may seem odd, but a dirty HVAC system can actually cause your air conditioner to start blowing warm air. That’s because dirt in your system can constrict airflow, especially if it clogs up your air filter. Less airflow means your AC has to work much harder, which can cause it to overheat. A dirty evaporator coil can also cause problems. Too much dirt can impair the coil’s ability to absorb heat, leaving you sweaty and uncomfortable.

Your Condensate Line Is Clogged

In addition to absorbing heat, your air conditioner also removes moisture from humid air. This moisture collects on your evaporator coil, drips into a drip pan and drains away through a condensate drain line. If this condensate line becomes clogged, it can cause your air conditioner to malfunction or even shut down entirely. In most cases, you can clear minor blockages by flushing the drain line with distilled vinegar. To prevent the problem from reoccurring, make cleaning your condensate drain line part of your normal HVAC maintenance checklist. This is also part of regular maintenance performed by an HVAC technician during a spring tune-up.

Your Refrigerant Level Is Low

Every air conditioning system is designed to be charged to a specific refrigerant pressure. If the pressure drops, the system may struggle to properly absorb heat and transport it out of your home. The good news is that a pressure check is always part of any scheduled preventive maintenance visit. If your system hasn’t been serviced in a while, however, it’s important to have your refrigerant level checked quickly. A low charge indicates a leak in your system, which can lead to major problems if it isn’t repaired.

If your air conditioning system can’t keep its cool in the Northern Virginia heat, get the expert help you need. Call Vernon The Heating & Cooling Specialist today for affordable and knowledgeable air conditioning repairs and maintenance.

You May Also Like

3 Signs It’s Time to Replace Your AC in Arlington, VA

3 Signs It’s Time to Replace Your AC in Arlington, VA

Your air conditioner prevents your home from being uncomfortably hot. Unfortunately, this appliance cannot last forever, and you may need to replace it after you observe certain signs. Here are indicators that show you need to replace your AC in Arlington, VA. Your...

4 Reasons for Uneven Cooling in Alexandria, VA

4 Reasons for Uneven Cooling in Alexandria, VA

Is your Alexandria, VA air conditioning system on but not distributing enough cool air throughout the house as it should? There are numerous possible causes, varying from minor hiccups to major issues requiring air conditioner replacement. We'll look at some of the...

4 Benefits of Air Purifiers in Herndon, VA

4 Benefits of Air Purifiers in Herndon, VA

Have you ever questioned if your Herndon, VA house is safe from air pollutants? You should check your home's indoor air quality system to guarantee that you breathe the cleanest air possible. Here are four advantages of using air purifiers. 1. Reduces Asthma and...

Why Choose Us

24/7 Emergency Service

NATE-certified technicians

Get Service in Hours, not DAYS

100% Satisfaction Guaranteed

Over 40 Years of Serving Washingtonians

Z

Drug Free and Criminal Background-checked Technicians

  • This field is for validation purposes and should be left unchanged.

Pin It on Pinterest

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