5 Reasons Your AC Unit is Leaking


AC unit leaking is certainly an unfortunate result of having a unit of any kind. If your AC is leaking, it can be tricky to figure out where and why it’s happening.

You might think it is a disaster, but we promise it can be repaired or replaced. With repair costs might not be as high as you think! Read on to find out the top five reasons your AC is leaking!

1. Blocked Drainage

Blocked Drainage can be the cause of your HVAC unit leaking. When the unit is running, it produces condensation that needs to be removed. Normally, this condensation is drained away from the unit via a pipe or tube.


However, if the drainage is blocked, the condensation can start to accumulate and cause water to leak out of the unit. This could be an issue with the pipe itself, or it could be caused by debris or dirt blocking the pipe.

2. Failing Components

When the various components that make up the AC unit fail, your entire unit may be leaking. If the compressor fails due to age or a faulty part, the unit may leak fluids, which can cause water to drip from the AC.

If the fan or blower motor begins to fail, the system won’t expel the same heat it did before, which causes an increase in pressure and the release of condensation from the unit. It’s important to inspect the components of your AC unit regularly so you can identify and consider HVAC repair Delaware¬†any failing parts before they cause serious damage.

3. Mold Growth

Mold growth is one of the leading causes of air conditioning unit leaks and is also potentially hazardous to health. Even the slightest amount of moisture can lead to the growth of mold on and around your air conditioning unit.

As the mold begins to spread, the air conditioner may become unable to regulate its own temperature due to clogged components. This can lead to water buildup and eventually leaking from the unit.

4. Overbooked Condensation Line

The condensation line is responsible for collecting and safely disposing of condensed water caused by the cooling process. When this line becomes overbooked, the water that collects within is unable to move out, which can create significant water pressure within the unit.

This pressure then builds up and eventually causes water to leak through small cracks or popped seals, hence leading to water damage. As a result, it is important to regularly inspect your condensation line and ensure that it is not overbooked.

5. Improper Installation

Improper installation is one of the most common reasons why AC units are leaking. Installation errors can all lead to AC unit leaks, such as:

  • Incorrect sizing and placement of parts
  • Incorrect refrigerant levels
  • Failure to use proper electrical safety techniques,
  • Incorrect configuration of the condensate collection system
  • Sloppy workmanship
  • Lack of proper maintenance

If the wrong kind of installation materials are used or if the technician lacks sufficient knowledge of the model and type of air conditioning unit, the chance of a leak increases exponentially.

Fix Your AC Unit Leaking Right Now

An AC unit leaking water can be caused by blocked drainage, failing components, or an overbooked condensation line. If you think your AC unit is leaking, call a professional HVAC technician right away to assess the issue.

Prolonged leaks can eventually lead to water damage and can be expensive to repair. Don’t hesitate to call now to diagnose the problem and keep your home comfortable all year round.