Top 5 Reasons Your Air Conditioner Is Leaking Water

Ever noticed a puddle forming under your air conditioner and wondered why it’s happening? An aircon leak is a common issue many Australians face, especially during the hotter months. Understanding the root causes can save you from potential damage to your property and keep your aircon running efficiently. Here are the top five reasons why your air conditioner might be leaking water.

The most common reason for an AC water leak is a clogged drain line. Over time, dirt, dust and mould can accumulate in the drain line, blocking the passage and causing water to back up into your unit. This excess water then leaks out, often creating a mess inside your home. In some cases, a clogged drain line can also cause unpleasant odours due to stagnant water. Regular maintenance and cleaning of the drain line can prevent this issue and keep your AC running efficiently.

A dirty air filter can lead to various issues, including water leakage. When the filter is clogged, airflow is restricted, causing the evaporator coils to freeze. Once these coils thaw, excess water may overflow from the drain pan, leading to an air conditioner leak. Besides causing leaks, a dirty filter can also lead to poor indoor air quality, circulating dust and allergens throughout your home. It's essential to replace or clean your air filter regularly to ensure smooth operation and maintain a healthy living environment.

Low refrigerant levels can cause the evaporator coils to freeze, similar to what happens with a dirty air filter. When these coils thaw, the resulting water can exceed the capacity of the drain pan, leading to leaks. Low refrigerant levels may also cause your air conditioner to work harder, increasing energy consumption. If you notice your air conditioner is leaking and not cooling effectively, it might be due to low refrigerant. In such cases, it's best to call a professional to check and top up the refrigerant.

If your air conditioner was not installed correctly, it might not be level, causing water to flow in the wrong direction. This misalignment can lead to water leaking from the unit rather than draining properly. Improper installation can also result in loose connections that cause leaks. Furthermore, poor installation might void your warranty, leaving you responsible for any repairs. Ensuring your AC is installed by a qualified technician can prevent these issues from occurring and help you avoid unnecessary costs.

For air conditioning units located in basements or lower levels, a condensate pump is used to pump out water. If this pump fails or becomes clogged, water can’t be effectively removed from the unit, leading to leaks. Over time, the pump might wear out or become blocked by debris, causing it to malfunction. Regular checks and maintenance of the condensate pump are crucial to avoid such problems. If you have a unit installed in an area below ground level, keeping an eye on the condensate pump is crucial. Scheduling regular maintenance can save you from unexpected leaks and the associated repair costs.

Water leakage from your air conditioner can lead to more significant problems like mould growth or damage to your property. At Airdale Services, we offer comprehensive air conditioning repair and maintenance services. Whether you’re dealing with a clogged drain line, low refrigerant levels or any other aircon issues, our team of experts is here to help. We offer prompt, reliable service to ensure your aircon runs smoothly all year round. Contact us today to schedule a maintenance check or repair service!