Imagine this: It’s the height of summer in Philadelphia, the air is thick with humidity, and you're relying on your air conditioning (AC) unit to provide some much-needed relief. But instead of enjoying a cool breeze, you find your AC unit frozen solid. This paradoxical issue is more common than you might think, and not only does it stop your AC from cooling effectively, but it can also cause long-term damage if not addressed. The team at McCorry Comfort has compiled some expert advice on how to fix and prevent your AC unit from freezing up during the dog days of summer.

Why AC Units Freeze

Several factors can cause your AC unit to freeze, including restricted airflow, low refrigerant levels, and running your AC at too low a temperature. Understanding these causes is the first step towards solving and preventing the issue.

Check and Change Your Air Filter

A dirty air filter is a common culprit behind restricted airflow, leading to your AC unit freezing. Check your air filter monthly, especially during the summer when dust and allergens circulate more frequently, and replace it as needed to ensure optimal airflow.

Inspect Your Air Ducts and Vents

Blocked or leaky ducts can also restrict airflow to your AC unit, causing it to freeze. Ensure all vents are open and unobstructed, and consider having your ductwork inspected by professionals like those at McCorry Comfort to identify and seal any leaks.

Maintain Proper Refrigerant Levels

Low refrigerant levels can decrease the pressure in your AC system, leading to freezing. If you suspect your refrigerant levels are low, it’s essential to contact a professional to address the issue, as handling refrigerant requires specialized training and equipment.

Set Your Thermostat Appropriately

Running your AC at too low a temperature can cause freezing, especially during the night when the air is cooler. We at McCorry Comfort recommend setting your thermostat to a comfortable but not excessively low temperature to prevent freezing.

Ensure Proper Insulation

Proper insulation in your home can prevent warm air from entering and cold air from escaping, which helps maintain the desired temperature without overburdening your AC unit. Pay special attention to areas like windows, doors, and attics.

Schedule Regular Maintenance

Regular maintenance by a professional can prevent many issues that lead to freezing, such as mechanical failures or clogged drain lines. An annual check-up with McCorry Comfort can ensure your system is in top working order and catch potential problems before they lead to freezing.

What to Do If Your AC Freezes

If you find your AC unit frozen, turn it off immediately to prevent further damage and allow it to thaw. Check and replace the air filter if it's dirty, and once the unit has thawed completely, turn it back on. If the issue persists, it's time to call in the experts.

AC unit freezing can be a frustrating hurdle during the summer months in Philadelphia, but with the right knowledge and care, it’s an issue that can often be prevented and fixed. Should you find yourself facing a frozen AC unit, remember that the professionals at McCorry Comfort are here to help get your summer cooling back on track.