You're relaxing at home when you notice something odd — a puddle of water forming on the floor beneath your air-con unit, slowly spreading.  Or maybe you spot a steady drip landing on the same spot, or a damp patch on the wall right below where the unit is mounted.

It's one of those household moments that instantly triggers a bit of panic.  Is the unit broken?  Do I need to call a technician?  Is this going to cost a fortune to fix?

Before you reach for the phone, here's some good news: in most homes, a dripping air-con isn't actually broken — it's clogged.  And that's something you may be able to fix yourself.

Why Is My Aircon Dripping Water in the First Place?

Air-con units aren't just blowing cool air into your room — they're also constantly removing moisture from it.  As warm, humid air passes over the unit's cold evaporator coils, the moisture condenses into water.  That water is collected in a drip tray and flow away quietly through a drainage pipe, out of sight and out of mind.

The problem starts when that drainage pipe gets blocked.

Over time, the same environment that makes air-con units effective at cooling also makes them a magnet for build-up of dust, dirt, mould, algae, and bacterial slime.  This gunk collects inside the drain pipe and the tray, gradually narrowing the passage the condensed water is meant to flow through.  Eventually, the water has nowhere to go — so it backs up, overflows the tray, and starts dripping into your room instead of draining away outside.

In other words: that puddle on your floor probably isn't a broken air-con.  It's often a clogged drainage system.

Why This Happens More Than You'd Expect 

Air-con units are switched on for hours at a time, in warm and humid conditions, with condensation forming constantly.  That's essentially the perfect recipe for organic build-up — the same way a damp, poorly ventilated space anywhere else in your home tends to develop mould and grime faster than a dry one.

Add dust from the air, and over months (or years) of regular use, it's no surprise that drain pipes and cooling coils accumulate a layer of slime and debris.  Most homeowners don't think about cleaning the inside of their air-con — only the filters, if that — which is exactly how blockages sneak up unnoticed until water starts dripping.

What Happens If You Ignore It?

A dripping air-con is often dismissed as a minor annoyance — a bit of water on the floor, nothing serious.  But left unaddressed, it can lead to bigger problems:

• Water damage: Stains and damage to flooring, walls, and furniture directly beneath or near the unit.

• Mould growth: Damp areas around the unit become perfect environments for mould, which severely affects indoor air quality.

• Reduced performance: If the leak is associated with dirty filters, coils or restricted airflow, the unit may also become less efficient at cooling.

• Bacterial breeding grounds: Stagnant, blocked water and organic slime create the exact conditions where harmful bacteria thrive.

None of this happens overnight, but a small drip today can quietly turn into a bigger (and more expensive) issue if the underlying blockage isn't cleared.

The Good News: You Don't Always Need a Technician

For many households, a dripping air-con caused by a clogged drain pipe is something you can resolve yourself, without waiting days for a service appointment.  It typically comes down to two things: clearing the blockage causing the drip, and cleaning the unit itself so the problem doesn't come straight back.

This is exactly the gap Mr McKenic®  Air-Con Cleaner + Choke Clear Bundle is designed to close.

Step 1: Clear the Blockage with Choke Clear

Mr McKenic® Choke Clear is formulated specifically to break up the rust, algae, scale, and slime that build up inside drainage pipes — including the drain pipe of your air-con unit.

Pour ¼ to ½ of the bottle directly into the exposed drain pipe, or onto the horizontal tray at the base of the coil if the pipe isn't accessible

Let it sit for 5–15 minutes to break down the clog

Rinse with water once the drain is clear

Repeat if the blockage is stubborn

No dismantling, no scrubbing — just pour, wait, and rinse.

If the leak continues, or if the cause is unclear, consult a qualified air-conditioning technician.

Step 2: Clean the Unit with Air-Conditioner Cleaner

It is worth addressing what caused the clog to build up in the first place: dust and micro-organisms accumulating inside the unit.  Mr McKenic® Air-Conditioner Cleaner (Self-Rinsing) clears dust and eliminates up to 99.9999% of harmful germs trapped in the coils and fins — without needing to rinse with water afterwards.

Switch off the unit and remove the filters for washing

Spray the cleaner about 10cm from the fins in an S-motion from top to bottom

Let it penetrate for 15–20 minutes

Replace the filters and casing, then run the unit on high-fan mode at 24°C for 45–60 minutes to complete the clean

Used monthly, this helps prevent the same dust and grime build-up that leads to clogged drains and dripping in the first place — while also improving the air quality coming out of your unit.

Two Products, One Straightforward Fix

Together, Choke Clear and Air-Conditioner Cleaner tackle both sides of the problem: one clears the blockage causing the drip right now, and the other keeps your unit clean so it's less likely to happen again.  Bundled together, they give you a complete, DIY-friendly way to deal with a dripping air-con — no technician callout required for what is, in most cases, a straightforward maintenance issue.

Don't let a small drip turn into a bigger problem.  Grab Mr McKenic®  Air-Con Cleaner + Choke Clear Bundle today and get your air-con running clean, dry, and efficient again.