Seeing water dripping from your aircon unit can be frustrating—and even alarming. A leaking air conditioner is one of the most common issues faced by homeowners and businesses in Singapore, and if not handled quickly, it can lead to water damage, mold growth, or complete system breakdown.

At Wei Wei Aircon, we specialize in fast and reliable aircon repair in Singapore. In this blog, we’ll walk you through the common reasons behind aircon leaks and what steps you should take when it happens.

Why Is Your Aircon Leaking Water?

There are a few typical reasons why an aircon might start leaking:

1. Clogged Drainage Pipe

Your aircon removes humidity from the air, and this moisture is drained through a pipe. If that pipe gets clogged with dirt, algae, or debris, the water has nowhere to go and starts leaking out.

2. Dirty or Clogged Air Filter

A blocked air filter restricts airflow, causing the evaporator coil to freeze. When it melts, excess water can overflow the drain pan and cause leaking.

3. Damaged or Rusted Drain Pan

Over time, the drain pan can become corroded or cracked, allowing water to escape instead of being properly drained.

4. Improper Installation or Tilt

If your aircon unit isn’t level, water may not flow to the drain pipe correctly, leading to leakage inside your room.

5. Low Refrigerant Levels

Low refrigerant can cause the evaporator coil to freeze. As it melts, water overflows the pan—similar to the clogged filter issue.

What should You Do If Your Aircon is Leaking?

If you notice your aircon leaking water, here’s what you should do:

✅ Turn Off the Unit

Prevent further leakage or internal damage by switching the aircon off immediately.

✅ Check the Air Filter

If you’re comfortable, check the filter and clean or replace it if it’s clogged.

✅ Check for Obvious Blockages

If you can see the drainage pipe or pan, check for signs of dirt or blockages—but don’t attempt to disassemble anything unless you’re trained.

✅ Call a Professional for Aircon Repair

This is the most important step. DIY fixes may only be temporary or risk voiding your warranty. At Wei Wei Aircon, our experienced technicians will:

- Diagnose the root cause

- Clean the drainage system

- Repair or replace any faulty parts

- Ensure your unit is leveled and functioning efficiently

- Don’t wait until it gets worse! A small leak today can become a major problem tomorrow.

Contact Wei Wei Aircon today for expert aircon repair in Singapore and get your unit fixed fast.