Aircon Water Leaking? Here Are the Most Common Causes & Fixes
Water dripping from your indoor aircond unit is one of the most common problems in Malaysia. Here's what causes it and how to fix it properly.
Why Is My Aircond Leaking Water?
Water leaking from an indoor aircond unit is a very common issue in Malaysia — especially during hot, humid months. The good news: most causes are fixable without replacing the unit.
Cause 1: Blocked Drain Pipe (Most Common)
Your aircond produces condensation as it cools the air. This water drains out through a pipe. Over time, algae, mould, and dust can block this pipe — causing water to back up and overflow into the room.
Fix: Drain pipe cleaning, included in our basic service (from RM 99).
Cause 2: Dirty Evaporator Coil
A heavily soiled coil can cause ice to form. When the unit switches off, the ice melts rapidly — producing more water than the drain can handle.
Fix: Chemical wash to clean the coil. From RM 120.
Cause 3: Low Refrigerant Gas
When gas pressure is too low, the evaporator coil gets too cold and freezes. The resulting ice melt causes excessive water leaking.
Fix: Gas top-up after identifying and fixing any leak. From RM 80.
Cause 4: Cracked or Disconnected Drain Pan
The internal drain pan collects condensation. If it's cracked or misaligned (common after rough handling), water leaks directly from the unit.
Fix: Chemical overhaul with drain pan inspection and realignment. From RM 220.
Cause 5: Poor Installation
If your unit was installed without proper slope, water cannot flow to the drain pipe and pools inside the casing instead.
Fix: Unit remounting with correct slope.
Should You Keep Using a Leaking Aircond?
We recommend switching it off if water is dripping heavily. Prolonged leaking can damage walls, ceilings, electrical fittings, and furniture. Call us to diagnose the problem quickly.