There are numerous issues that require AC repair services, but one of the most common is a troublesome leak. Not only does it mean that the air conditioning unit isn’t operating efficiently, but it may also lead to mold growth or a slipping hazard. Before scheduling repairs, it’s helpful to understand what may be causing the leak.

Why Does an Air Conditioner Leak?

1. Clogged Drain Pipe

The drain pipe ensures any condensation that builds up within the system drains safely away from your home, but over time, it may become clogged with dirt and debris. When this happens, the water will build up until it overflows the drain pain. An AC repair expert will clear the line so the water can be removed freely again.

2. Damaged Pan or Pump

Any system that doesn’t use a gravity drain line—in which the unit has adequate space to allow vertical drainage—relies on a pump to empty the condensate out of the drain pan. In this case, issues with either the pan or pump prevent this from happening.

Constant exposure to moisture may cause a metal pan to rust and develop holes that allow the water to leak out. If the pan is still in good shape, the pump may be malfunctioning. Without its periodic emptying of the pan, it’s only a matter of time before you have a leak issue.

3. Dirty Air Filter

A clogged air filter doesn’t just lead to reduced indoor air quality and system efficiency. It also prevents air from passing over the evaporator coil. This coil needs constant airflow to prevent it from getting too cold and freezing over, leading to melting ice overflowing the drain pan. This is one reason commercial HVAC contractors recommend replacing the filter at least every three months.

4. Broken Refrigerant Line

If the leaking fluid has a sweet, ether-like scent, the issue is refrigerant rather than condensation. This requires a professional’s attention because the fluid can cause a variety of health issues when handled improperly or excessively inhaled. 

It’s typically caused by normal wear that degrades the rubber seals on the service valves or rusting assembly joints. If the problem isn’t fixed, the system can’t cool the home as efficiently and will cause utility bills to rise.

5. Poor Installation

If your AC is still fairly new and leaking, a faulty installation may be the culprit. The drainage line might not be connected properly, preventing condensation from being safely removed. It’s also possible that the entire system was installed at a slightly tilted angle, which may cause the water to pool on the ground beneath it more easily.

 

If your system is experiencing a leak, schedule AC repairs with the experts at Anderson Automatic Heating & Cooling in Cincinnati, OH. With more than 90 years of experience, their team of licensed and bonded contractors will perform a thorough inspection and repair any issues to restore your unit to optimal performance and efficiency. Call (513) 574-0005 to schedule an appointment or learn more about their services online.