Three Ways an HVAC Unit Can Freeze Even in Summer

Hvac repair

Chances are if your HVAC unit looks like a robotic iceberg, it’s because of the harsh, winter weather that’s rocking the nation right now. But believe it or not, your HVAC unit can get that way even in the hottest parts of the year, especially if you’re not taking care of it.

Here are just a few of the most common ways air conditioners can freeze up on their owners.

Refrigeration Issues.

If there’s an issue with the unit’s refrigeration, then it’s obviously going to freeze up. Whether it’s because the unit is leaking or because it’s low on refrigerant, the HVAC unit’s evaporator coils will experience a drop in pressure, which will then allow moisture to get in, freeze, and accumulate. If you find that you’re cleaning air conditioning coils of ice in the summer, the refrigerant is probably your problem.

Blocked Air Flow.

HVAC cleaning chores can be a bit of a pain, but they’re important. Taking care of such little things as replacing residential HVAC air filters will not only help the unit work as efficiently as possible, but also keep it from freezing over. That’s right — your unit may freeze if you don’t do any HVAC cleaning. You see, when you don’t do any HVAC cleaning, dust and debris collects, preventing warm air from reaching the coil, causing it to drop below freezing. Humidity in the air will then collects on the coil, and freezes. Thusly, not doing any HVAC cleaning causes the unit to freeze.

Outdoor Temperature.

As mentioned earlier, the weather can cause your unit to freeze, but not in a way you might expect. Rather than freezing as a result of being pelted with freezing rain and snow, temperature below 60 degrees Fahrenheit can cause systems to malfunction, and consequentially freeze up.

Whether it’s because it’s too cold or out or because you didn’t do any HVAC cleaning like you were supposed to, there are a number of ways your unit can freeze up, even in summer. If you have any questions, feel free to share in the comments.

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