Is Your Aircon Leaking Water? Here’s What You Should Know

Spotting a puddle beneath your air conditioning unit can be unsettling, and in Singapore's humid climate, an aircon leaking water is an unfortunate problem. While a few droplets might be normal, persistent leakages can signal underlying issues that affect your aircon’s performance, which can lead to costly repairs. 

As your trusted aircon specialist, 81 Aircon is here to help. This guide will demystify the common causes leading to aircon leakages, and will also explain why it's crucial to seek professional repair services for a lasting solution.

Common Causes of a Leaking Aircon

When your aircon starts to leak, it's usually a clear sign that something isn't quite right within the system. Let's explore the most common culprits that lead to this:

1. Clogged or Blocked Drain Line

This is a very common culprit behind leaking aircon systems in Singapore. The drain line is crucial for carrying condensation away from your aircon unit. Over time, algae, mold or debris can accumulate, creating a blockage within this line. When obstructed, water backs up and is forced to overflow, causing leakages to occur. 

2. Dirty Air Filter

A dirty air filter severely restricts airflow to your aircon’s evaporator coil, causing it to overcool and freeze over. As this ice eventually melts, the resulting excess water overloads the drain pan, leading to obvious leaking. Regularly cleaning or replacing your air filters is a simple yet effective preventative measure against this issue.

3. Low Refrigerant Levels

Insufficient refrigerant can cause your aircon’s evaporator coil to freeze, as it lacks the necessary heat absorption. When this ice thaws, the sudden influx of water can overwhelm the drain system, leading to your aircon leaking water. Low refrigerant levels also often indicate a system leak, requiring prompt professional repair services to restore optimal performance.

4. Damaged or Corroded Drain Pan

The drain pan beneath your aircon unit is designed to collect condensation. However, if this pan becomes cracked, rusted or otherwise damaged, its ability to hold water is compromised. This results in a leaking aircon, as the overflow spills out instead of draining properly. Such damage typically occurs due to the unit's age, constant exposure to moisture or even underlying manufacturing defects.

5. Faulty Aircon Installation

Faulty aircon installation is a significant cause of future problems, including leaks. If the indoor unit is not perfectly level or if the drain line lacks the proper downward slope, condensation cannot drain correctly, leading to leakages. Therefore, engaging a professional for your aircon installation is crucial to prevent such issues from arising right from the outset.

How to Fix a Leaking Aircon: When to DIY vs. When to Call a Professional

When faced with a leaking aircon, knowing the appropriate action can save you time and prevent further damage. Here's a guide on how to DIY minor issues, and crucially, when to call a professional:

Simple DIY Checks and Solutions

• Check and Clean Air Filter: Regularly checking and cleaning your filters ensures proper airflow, preventing ice buildup and subsequent overflow from the drain pan.
• Inspect Drain Line for Obvious Blockages: If safely accessible, you can visually inspect the opening of the drain line for any easily removable debris. Clearing simple clogs may resolve your leakage issues.
• Defrost Frozen Coils: If you observe ice on your evaporator coil, immediately turn off your aircon unit and allow it to defrost naturally. This helps any melted ice to drain properly, potentially resolving any leakages.

When to Call for Professional Aircon Repair

• Persistent Leaking: If your aircon persistently leaks even after performing basic DIY checks, it signals a deeper problem that requires expert attention. Do not delay seeking professional help to prevent further complications.
• Suspected Refrigerant Leaks: Hissing sounds or reduced cooling capacity often indicate a refrigerant leak, which is a serious issue. Such leaks require immediate professional servicing to address any safety or environmental concerns.
• Visible Damage: If you notice cracks, rust or other visible damage to your aircon’s drain pan or internal components, DIY fixes are not sufficient. These structural issues require professional support to restore functionality.
• Strange Noises or Smells: Aircon leakages accompanied by unusual noises (e.g., grinding, banging) or foul smells suggests a more complex internal malfunction. These symptoms warrant an expert diagnosis by professionals.
• Faulty Aircon Installation: If your aircon unit has been leaking since its initial setup, it's highly likely due to improper installation. This requires a professional aircon specialist to rectify the underlying installation flaws.

Choose 81 Aircon for Reliable Aircon Repairs and Servicing

Experiencing aircon leakages can be concerning, as they often signal underlying issues that require attention. While simple fixes exist, many issues demand expert support to ensure lasting performance and to prevent further damage.

As your trusted aircon specialist in Singapore, 81 Aircon offers comprehensive solutions. Our BCA-certified technicians swiftly diagnose and resolve all types of aircon leaking issues, providing reliable aircon repairs and servicing.

We are committed to professional, cost-efficient services, ensuring your peace of mind and optimal aircon function. If your aircon is leaking, don't let it disrupt your comfort. Visit our website or contact our customer care team today for a personalised quote!