Skip to content
Told you need a big repair or a new system? Get a FREE second opinion from Burnside →

5 Signs of a Frozen Air Conditioner Coil in McKinney, TX

Tips & Advice

Burnside Air Conditioning, Heating & Plumbing

June 26, 2026
3 min
5 Signs of a Frozen Air Conditioner Coil in McKinney, TX

From early June right up through the middle of September, the average temperature in McKinney, TX is about 87 degrees. There are also plenty of days when the temperatures will soar up into the 90s and even the 100s at times.With this in mind, you might not think it would be possible for your home's air conditioner to freeze on you. But in reality, it isn't all that uncommon for homeowners to experience a frozen AC when they have their air conditioning turned on.A frozen AC is often the result of a frozen air conditioner coil. It's one of the many air conditioner problems you might face in McKinney, TX this summer.Here are five signs of a frozen air conditioner coil that'll show you need to schedule HVAC repair in McKinney ASAP.

1. Ice on Evaporator Coil

If you have a frozen air conditioner coil on your hands, you might be able to see that it's physically frozen. There may be ice that'll form right on your evaporator coil, which is situated in the part of your AC system that's located inside your home.It would be worth sneaking a peek at your evaporator coil every so often if it's easily accessible. It'll reveal whether or not you might have a frozen air conditioner coil causing AC problems.

2. Ice on Refrigerant Line

There is a refrigerant line that runs from the portion of your home's AC system that's located outside into the portion of your AC system that's located inside. You should inspect this refrigerant line every now and then to see if it has any ice forming on it.If there is any ice on your refrigerant line, this will be another sign that you might have a frozen air conditioner coil. You'll need to arrange to have HVAC repair in McKinney performed right away.

3. Lack of Cold Air From AC System

There are all sorts of things that can result in your AC system not producing enough cold air for your home. A frozen air conditioner coil can be one of them.But no matter what might be causing a lack of cold air from your AC system, you should get the problem fixed as quickly as you can. Otherwise, your home is going to end up getting a lot warmer than you would like.

4. Overflowing Condensate Drain Pan

The condensate drain pan in your AC system is responsible for taking excess moisture from your system and helping move it outside. But if you have a frozen air conditioner coil that thaws out, it might begin to overflow.When it overflows, it can leave the area surrounding your AC system wet. It'll be a pretty obvious sign that something is wrong with your air conditioning system.

5. Clogged Condensate Drain Line

The condensate drain line in your AC system is in charge of carrying excess moisture away from your condensate drain pan. But when this pan overflows, it could lead to your drain line getting clogged and backing up.You should work to keep your condensate drain line clear. You should also try to have a frozen air conditioner coil looked at if you believe it might be leading to condensate drain line issues.

Let Us Fix Your Frozen Air Conditioner Coil

If you have a frozen air conditioner coil in your AC system, you should stop using your air conditioner right away. If you don't do this, you will run the risk of encountering even more serious AC problems down the line.Burnside Air Conditioning, Heating & Indoor Air Quality can provide you with HVAC repair in McKinney, TX. Contact us today to schedule an appointment with an experienced HVAC technician.

Need Help?

Contact us today to discuss your needs. Our team is ready to help.

About the Author

Burnside Air Conditioning, Heating & Plumbing

More Articles

View All Posts

Related Articles

How Proper Insulation Maximizes the Lifespan of Your New Heat Pump
Tips & Advice

How Proper Insulation Maximizes the Lifespan of Your New Heat Pump

Upgrading to a high-efficiency heat pump won't solve your comfort issues if your home's thermal envelope is compromised. Learn why sealing leaks prevents premature system failure.

Read Article
Addressing Uneven Cooling in Celina, TX Homes with West-Facing Windows
Tips & Advice

Addressing Uneven Cooling in Celina, TX Homes with West-Facing Windows

When your west-facing living room turns into an oven every afternoon, your AC works overtime. Understand why standard HVAC systems struggle with this solar heat and how to safely balance it.

Read Article
Diagnosing Sulfur Smells in Your Water Heater After a Long Texas Summer
Tips & Advice

Diagnosing Sulfur Smells in Your Water Heater After a Long Texas Summer

If your hot water smells like rotten eggs this September, you might be dealing with a bacterial bloom. Find out if your system needs a basic flush or a professional anode rod replacement.

Read Article
Patching a Leaky Air Duct vs. Complete Ductwork Replacement
Tips & Advice

Patching a Leaky Air Duct vs. Complete Ductwork Replacement

When high energy bills point to duct issues, choosing between a simple mastic patch and a fresh start isn't guesswork. See the criteria professionals use to evaluate your system's health.

Read Article
Should I Schedule Furnace Repair Now if My Heater Worked Fine Last March?
Tips & Advice

Should I Schedule Furnace Repair Now if My Heater Worked Fine Last March?

Many homeowners assume a heater that ran perfectly in the spring will start right up in the fall. Here is why an idle furnace needs a proactive checkup before the first cold night.

Read Article
The Process of Testing Gas Furnace Draft Inducers for Carbon Monoxide Safety
Tips & Advice

The Process of Testing Gas Furnace Draft Inducers for Carbon Monoxide Safety

Your heating system's exhaust relies on a draft inducer to safely vent dangerous gases outdoors. Discover how our professional diagnostic tools verify this vital component before winter hits.

Read Article
Preparing Pier and Beam Homes in Anna, TX for Shifting Fall Temperatures
Tips & Advice

Preparing Pier and Beam Homes in Anna, TX for Shifting Fall Temperatures

Rapid fall temperature drops create a unique condensation trap under Anna's older homes. See how to balance crawlspace ventilation to prevent wood rot while keeping your floors warm.

Read Article
Whole-House Air Purifiers vs. Upgraded HVAC Filters for Ragweed Season
Tips & Advice

Whole-House Air Purifiers vs. Upgraded HVAC Filters for Ragweed Season

Texas ragweed season forces a tough choice between clean indoor air and AC performance. Weigh the benefits of a dedicated purifier against high-MERV filters to protect your airflow.

Read Article
Why Does My HVAC System Smell Dusty When I Turn on the Heat?
Tips & Advice

Why Does My HVAC System Smell Dusty When I Turn on the Heat?

That burning dust odor on the first chilly September morning is a common scare. We break down the mechanics behind this seasonal burn-off and exactly when a smell warrants an emergency service call.

Read Article
The Hidden Link Between Dirty AC Coils and Early Fall Indoor Allergies
Tips & Advice

The Hidden Link Between Dirty AC Coils and Early Fall Indoor Allergies

As the weather cools and windows stay shut, trapped summer dust and moisture on your AC coils can trigger sudden sneezing. See how this impacts your indoor air.

Read Article
Transitioning Your McKinney Home's HVAC Settings for Early September Mornings
Tips & Advice

Transitioning Your McKinney Home's HVAC Settings for Early September Mornings

Stop fighting your thermostat during those wild late-summer temperature swings. We break down a simple scheduling strategy for crisp mornings and hot afternoons.

Read Article
Solving Drainage Issues from Condensation Lines in Melissa, TX Attics
Tips & Advice

Solving Drainage Issues from Condensation Lines in Melissa, TX Attics

A faint brown water stain on your ceiling often points to an overflowing attic HVAC unit. Recognize the early signs of a drainage backup and stop costly drywall damage before it spreads.

Read Article

Ready to Get Started?

Whether you need a repair, maintenance, or a new installation, our expert team is here to help.