Aircon Leaking Water? Here’s What It Means and What to Do in Singapore

If you’ve noticed your aircon leaking water, especially onto your wall or floor, don’t ignore it. In Singapore’s humid climate, this is a common issue—but it’s also a warning sign that something is wrong.

Here’s what aircon leaks usually mean and what you can do to fix them quickly and safely.

Common reasons for aircon water leaks in Singapore homes, from drainage issues to low refrigerant levels

Why Is My Aircon Leaking?

Your aircon naturally produces water when cooling. That moisture is supposed to drain out through a pipe. But when that process breaks down, the water drips indoors instead.

This is one of the most frequent issues in aircon leaking Singapore service calls.

Common Causes of Aircon Water Leaks

1. Clogged Drain Pipe

Over time, dust and algae build up inside the drain pipe. When the pipe is blocked, water backs up and starts to leak out of the unit.

Fix: A technician will flush or vacuum the drainage system. This is part of regular servicing.

2. Dirty Evaporator Coil

When the coil is too dirty, it can freeze up. When it melts, excess water spills out unevenly, causing leakage.

Fix: Schedule a chemical cleaning to remove coil buildup.

3. Improper Installation

If your aircon was installed without the correct angle or the drain pipe was poorly fitted, it may leak from the start.

Fix: You’ll need a technician to adjust the unit or pipe. This isn’t a DIY job.

4. Low Refrigerant Gas

Low gas pressure causes the coils to freeze, leading to excess condensation and leaking when the ice melts.

Fix: Top up refrigerant only after confirming there are no gas leaks.

5. Damaged Drain Pan

Older units may have a cracked or rusted drain tray. This lets water fall straight onto the wall or floor.

Fix: The tray needs to be replaced. Technicians will check this during servicing.

What Should You Do Right Now?

1. Turn off the aircon to prevent water damage

2. Place a towel or tray under the drip

3. Call a professional technician for inspection and servicing

   
   

If you continue using a leaking unit, you risk:

• Mould growth

• Water stains on walls and ceilings

• Electrical risks if the water reaches wires

Can I Fix It Myself?

You can clean the filter and check for visible blockages, but anything involving the coil, gas, or piping should be left to a technician. Fixing an aircon drip improperly may worsen the leak.

FAQ

Q1: Why is my aircon leaking only sometimes?

It may be temperature-related or due to partial blockage in the drain system.

Q2: Can a leaking aircon damage my wall?

Yes. Repeated leaks can lead to mould, bubbled paint, or warped surfaces.

Q3: Is it safe to keep using a leaking aircon?

No. It may cause electrical hazards or further damage to the unit.

Q4: How often should I service my aircon to prevent leaks?

Every 3–4 months, especially in Singapore’s humid conditions.

Q5: Does every leak mean a big repair?

Not always. Many leaks are solved through simple servicing.

Noticed your aircon dripping? Contact Sky Blue Aircon Engineering now to book a quick, no-fuss inspection and fix it before damage spreads.