Water & Leak Problems
Water dripping from your aircon indoor unit, condensation on pipes, or leaking only when it rains. Understand common causes and what to check.
Why Your Aircon Is Leaking Water
Water leaks from an aircon indoor unit are the second most common complaint in Singapore. The unit produces condensation naturally — moisture from humid indoor air collects on the evaporator coil and drains away through a pipe. When that drainage path is blocked, water backs up and drips from the unit or tray.
A clogged drain pipe is the cause in most cases. Dust, algae, and slime build up inside the drain line over time, especially in Singapore's humidity. A simple drain flush during routine servicing prevents this. If the leak only happens when it rains, the issue is often water ingress through the wall sleeve where the pipes pass through.
Condensation forming on exposed copper pipes is different from a leak — it means the pipe insulation has degraded or was installed too thin. This is cosmetic in the short term but can cause water damage to walls and ceilings if left unaddressed.
Related Problems
Each article covers a specific symptom — what causes it, how serious it is, and when it needs professional attention.
Recent Cases
Real faults we diagnosed and resolved on site — what the owner reported, what we actually found, and how it was fixed.
Aircon Cassette Leak, Blocked Drain
Case
Aircon Cassette Leak, Drain Sludge
Case
Aircon Ceiling Drip, Concealed Drain Joint
Case
Aircon Ceiling Drip, Loose Drain Fitting
Case
Aircon Ceiling Unit Overflow
Case
Aircon Concealed Unit Dripping
Case
Aircon Daikin A3 Drain Blockage, Line Sag
Case
Aircon Daikin A3 Drain Pump Failure
Case
Aircon Drain Freeze Water Leak, After Rain
Case
Aircon Drip Drain Pipe Gradient Lost
Case
Aircon Ducted Overflow, Stuck Pump Float
Case
Aircon Leak After Service, Drain Tray
Case
Aircon New Unit Leak, Drain Pan Unseated
Case
Aircon Shop Unit Dripping, Drain Algae
Case
Aircon Wall Unit Drip Algae Drain Tray
Case
Aircon Wall Unit Leak, Blocked Drain Tray
Case