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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.

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Burnside Air Conditioning, Heating & Plumbing

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