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Why Is My Air Conditioner Leaking?

Jul 27, 2023

In the Florida summer heat, an air conditioner is a lifesaver, providing comfort for your family and friends. However, a common air conditioning problem is a leaky AC unit. A pool of water forming around your air conditioner can be alarming and frustrating. In this blog, we’ll explore the common causes of AC leaks and suggest practical solutions to address the issue.

Clogged or Dirty Air Filters

One of the most common reasons for air conditioner leakage is a clogged or dirty air filter. Over time, the filter accumulates dust, dirt, and debris, hindering or completely stopping proper airflow. As a result, the evaporator coils may freeze, and once they thaw, excess water drips down and causes the leak. To prevent this, make sure to replace or clean your air filters regularly, ideally every one to three months, depending on usage and occupancy.

Person cleaning AC unit

Blocked Condensate Drain Line

Another typical culprit behind AC leaks is a blocked condensate drain line. The condensate drain line is responsible for carrying the water away from the AC unit. Over time, algae, mold, dirt, and other debris can build up inside the drain line, obstructing water flow. As the water accumulates, it can eventually overflow and cause a leak. To address this issue, you should consult a professional HVAC technician for a thorough cleaning.

Low Refrigerant Levels

Refrigerant is a crucial component that helps cool the air in your AC unit. If your air conditioner is low on refrigerant, it can lead to freezing of the evaporator coils. Once the coils thaw, excess water can leak from the unit. Low refrigerant levels may indicate a refrigerant leak, which requires immediate attention from a qualified technician. They will not only repair the leak but also recharge the refrigerant to the correct levels.

Improper Installation

In some cases, air conditioner leaks can be traced back to improper installation. If the unit is not level, it can lead to the accumulation of water in the wrong places, causing leakage. A faulty installation may also result in disconnected or misaligned components, leading to water seepage. If you suspect improper installation, it’s best to contact a licensed HVAC professional to inspect and rectify the issue.

Damaged or Clogged Drain Pan

The drain pan, situated under the evaporator coils, collects the condensate water and directs it towards the condensate drain line. If the drain pan is damaged or clogged, water may overflow and cause the air conditioner to leak. Regular maintenance and inspections by professionals can help detect and fix any issues related to the drain pan.

Work with a Professional HVAC Technician

Air conditioner leaks can be frustrating, but identifying the root cause is essential to address the issue effectively. Regular maintenance, including cleaning or replacing air filters and checking the condensate drain line, can go a long way in preventing leaks. Additionally, if you encounter any problems related to refrigerant levels or suspect installation issues, it’s best to seek professional help.

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