Why Is My Air Conditioner Leaking Water?

Nothing feels more refreshing than coming home to a cool and comfortable house during a hot summer day. However, when you find a puddle of water beneath your air conditioner, it can be quite unsettling. So, why is my air conditioner leaking water? Grove Heating & Cooling explores some of the most common reasons why an air conditioner may leak water. Whether you’re experiencing a small puddle or a major leak, understanding its cause helps you take necessary corrective measures. 

Moisture & The Cooling Process

A common question when it comes to air conditioners is why they produce water. The answer has to do with the process of condensation that occurs when air is cooled quickly. As warm indoor air passes over the evaporator coils and heat is pulled from the air, it increases humidity – the cooler air can’t contain all the moisture, so it releases some of it in the form of water droplets. The density of these droplets accumulates on the coil and eventually drip down into a drain pan, eventually out through the condensate drain line, a tube that runs outdoors or to a drain. 

Why Is My AC Leaking Water?

If you find yourself asking “why is my air AC unit leaking water?”, then there may be a problem with your system. If you start to notice any type of leakage, it’s best to get an experienced technician out to investigate sooner rather than later so they can diagnose what is causing the leak and perform any needed repairs before expensive damage is caused. Here are a few common issues that cause air conditioners to leak water:

Clogged Condensate Drain Line

One of the most frequent causes of water leakage from an air conditioner is a clogged drain line. During operation, the coils on the air conditioner draw moisture from the air and convert it to water, which flows down the drain line and is expelled outside. When the drain line gets clogged with dirt, debris, or mold, water will back up and build up in the drip pan, causing it to overflow into the area surrounding your unit.

Damaged or Clogged Drain Pan

The drain pan is usually located beneath the evaporator coils and catches the overflow from the condensate drain. However, if the pan is damaged or cracked, water can quickly leak out of the unit. Alternatively, if dirt, debris, or rust accumulates in the pan, the water may not drain correctly, leading to overflow and leakage.

Dirty Air Filter

A dirty air filter can cause many problems with your air conditioning unit, including water leakage. When the filter is clogged, it restricts airflow across the evaporator coils, causing the coils to freeze. When the ice melts, it creates a pool of water that may overfill the drain pan and lead to a leak.

Low Refrigerant Levels

Low refrigerant levels in your air conditioner can lead to inadequate cooling, a frozen evaporator coil, and water leakage. If you notice that your air conditioner isn’t cooling your home effectively or is producing water, low refrigerant levels may be the cause.

Improper Installation

If your air conditioning system isn’t installed correctly, it’s likely to leak. An improperly installed AC unit will have incorrect refrigerant levels or insufficient insulation around the evaporator, causing it to get too cold or too warm. This rapid temperature change leads to an accumulation of condensation, resulting in leakage.

Is Your Air Conditioner Leaking Water?

Water leakage from your air conditioner can be quite frustrating and even lead to significant property damage. However, understanding the causes of leakage helps ensure timely and adequate corrective actions. If you’re experiencing air conditioner leakage, it’s crucial to contact a professional air conditioner repair service promptly. At Grove Heating & Cooling, we offer fast, reliable, and affordable air conditioner repair services in Bowie, Maryland. Contact us today to schedule an appointment!

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