If you’ve noticed water leaking from an aircon unit, you’re not alone. This is one of the most common air conditioning problems faced by homeowners across Perth, particularly during warmer months.
While air conditioners naturally produce condensation, visible dripping or pooling water is a sign something isn’t right.
Many homeowners ask, why is my AC unit leaking water, and whether it’s safe to keep running the system. Understanding the cause early can help prevent property damage, mould growth, and costly repairs.
Why Is My AC Unit Leaking Water
There are several reasons water leaking from an aircon unit occurs, especially in Perth’s climate where dust, heat, and heavy aircon usage are common.
Blocked Condensate Drain Line
The most common cause of aircon leaking water Perth homes experience is a blocked drain line. Dirt, dust, and mould can clog the drainage pipe, causing water to back up and leak from the indoor unit.
Dirty or Clogged Air Filters
When filters are blocked, airflow is restricted. This can cause the evaporator coil to freeze. Once it melts, excess water overflows, leading to water dripping from the air conditioner.
Low Refrigerant Levels
Low refrigerant can also cause the coils to freeze, which often results in air conditioner leaking water inside the home after thawing.
Damaged or Rusted Drain Tray
Over time, drain trays can crack or corrode, allowing water to escape instead of draining properly.
Incorrect Installation
If the unit isn’t level, water may not drain correctly, leading to ongoing leaks.
Split System Aircon Leaking Water What Perth Homeowners Should Know
A split system aircon leaking water is particularly common in residential properties. These systems rely on proper drainage from the indoor unit, and even a small blockage can cause water to overflow.
Common signs include:
- Water dripping from the indoor unit
- Damp walls or ceilings
- Musty or mouldy smells
- Reduced cooling performance
If you notice aircon leaking water inside the house, it’s best to stop using the system and arrange a professional inspection.
Is Water Leaking From an Aircon Unit Dangerous
While it may seem like a minor issue, ongoing aircon unit leaking water can cause:
- Damage to walls, ceilings, and flooring
- Electrical safety risks
- Mould growth affecting indoor air quality
- Increased energy consumption
Ignoring the issue can turn a simple repair into a major expense.
How to Fix Water Leaking From an Aircon Unit
Some basic maintenance can help prevent leaks:
- Clean air filters every 2–4 weeks
- Keep vents and drain outlets clear
- Schedule regular aircon maintenance
However, persistent aircon drainage problems should always be handled by licensed technicians. Professional aircon leak repair Perth services can safely clear blockages, repair components, and restore proper operation.
Why Aircon Water Leaks Are Common in Perth
Perth’s dry summers and dusty conditions can accelerate dirt buildup inside air conditioning systems. Combined with high usage during heatwaves, this makes water coming out of aircon unit a frequent issue for local households.
Regular servicing is especially important in Perth homes to avoid seasonal breakdowns and water damage.
When to Call a Professional Aircon Technician
You should contact a professional if:
- Water continues dripping after filter cleaning
- There are stains or moisture around the unit
- Cooling performance has dropped
- You hear unusual noises or smell mould
Prompt air conditioner leak repair Perth services can prevent further damage and extend your system’s lifespan.
Conclusion
If you’re dealing with water leaking from an aircon unit, don’t ignore it. Whether you’re asking why is my AC unit leaking water or facing a split system aircon leaking water, early action makes a big difference.
For Perth homeowners, regular maintenance and professional repairs ensure your air conditioning system stays efficient, safe, and reliable throughout the year.