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Is Your Air Conditioner Leaking Water After The Heavy Rain?

  • Writer: Brett Wells
    Brett Wells
  • Oct 30
  • 3 min read

Updated: Nov 5

The recent heavy rain on the Gold Coast has left many homeowners facing an unwelcome surprise, water leaking from their air conditioner.


In our humid coastal climate, air-conditioning systems often work overtime during wet weather and leaks become a common issue.


If you’ve noticed your air-con dripping or leaking water, you’re not alone. Understanding the causes and acting quickly can help you avoid costly repairs and protect your home.


Close-up view of a split system air conditioner showing water leakage
Split system air conditioner with visible water leak

Common Causes of Air-Con Water Leaks


There are several reasons your air conditioner might leak water, especially after heavy rain. Here are the most common culprits:


Blocked Drain Line

A blocked drain line is one of the most frequent causes of air-conditioning leaks. Dust, algae and debris can clog the condensate drain, preventing water from escaping properly.


Industry data shows that up to 90% of air-conditioning issues stem from poor drainage.


Pro tip: Regular air-conditioning maintenance and drain cleaning help prevent blockages and leaks, especially in humid areas like the Gold Coast.


Dirty Filters

A dirty air filter restricts airflow, causing the evaporator coil to freeze. When the ice melts, it can overflow the drain pan and leak into your home.Change or clean your filters every 1–3 months or more often if you have pets or smoke indoors.

Clean filters keep your air-con efficient and prevent unnecessary water damage.


Damaged Drain Pan

Your drain pan collects condensation from the system. Cracks or rust can allow water to escape.

A replacement pan may cost only $50–$150, but ignoring it could result in thousands in water damage repairs.


Poor Installation

If your air conditioner isn’t installed correctly or level, drainage problems are inevitable.


Always use a qualified air-conditioning technician — proper installation can improve system efficiency by up to 20% and prevent leaks.


The Risks of Ignoring a Leak


Ignoring a leak from your air conditioner can result in severe issues:


  • Mould Growth: Excess moisture can encourage mould, impacting indoor air quality and posing health risks to your family. Studies show that approximately 30% of homes have mould problems due to moisture.


  • Water Damage: Over time, leaks can damage walls, ceilings and flooring, leading to costly repairs. For instance, water damage repair can range from $1,200 to $5,000 or more, depending on the extent of the damage.


  • Increased Power Bills: A leaking air conditioner has to work harder to maintain the desired temperature, causing a spike in energy costs. Homeowners can see increases of up to 25% on their electricity bills due to inefficiencies.


  • System Failure: Prolonged leaks can severely damage your air conditioning system, necessitating expensive repairs or replacements, which can cost thousands of dollars.


Simple Homeowner Checklist


Before calling a technician, here are a few things you can check:


  • Inspect the Drain Line: Look for visible blockages or bends in the drain line.


  • Check the Filters: Ensure your air filters are clean and allowing adequate airflow.


  • Examine the Drain Pan: Look for any cracks or damage in the drain pan.


  • Review Installation: If your system is relatively new, consider whether it was installed correctly.


If the leak persists after checking these items, it's time to call in a professional.


Get Professional Assistance


When it comes to air conditioning repair on the Gold Coast, you need a local expert like EvidiAir. Our team knows the unique challenges posed by our humid climate and can provide timely, safe repairs.


Why Choose EvidiAir?

When it comes to air-conditioning repair on the Gold Coast, trust EvidiAir, your local experts in leak detection, drainage repair and maintenance.


  • Same-Day Service: We understand that a leaking air conditioner can be an urgent issue and we aim to provide same-day service to our customers.


  • Trusted Local Technicians: Our qualified professionals are familiar with the common problems faced by Gold Coast homeowners.


  • Transparent Pricing: We believe in clear communication and upfront pricing, so you'll know exactly what to expect.


Whether it’s a split system, ducted air-conditioning unit or blocked condensate drain, our qualified technicians will fix it quickly and safely.


Eye-level view of a technician inspecting an air conditioning unit
Technician inspecting an air conditioning unit for leaks

Take Action Today


Don’t let a small leak turn into a major issue.

Call EvidiAir Air Conditioning Gold Coast on 0414753300 or visit EvidiAir for same-day reliable repairs.


We’ll inspect, repair and maintain your air conditioner, keeping your home cool, dry and energy-efficient all year round.


Understanding the reasons behind a leaking air conditioner can help you take the necessary steps to fix the issue. With the humid climate of the Gold Coast, proactive maintenance is vital. Don't let a small leak develop into a bigger problem—reach out to a trusted local technician today.


If you have questions or need help, feel free to contact us. We’re here to help keep your home comfortable and safe!


High angle view of a clean air conditioning filter
Clean air conditioning filter ready for installation

 
 
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