Quick Answer: Why your aircon is leaking water
If your aircon is leaking water, the most common causes in Kuala Lumpur are a clogged drainage line, a dirty drain pan / coil buildup, or an installation alignment issue. Most leaks are fixed by clearing the blockage and cleaning internal parts, or by repair if the drain system or installation is faulty.
Common Reasons & Professional Solutions
1. Clogged Drain Pipe (Most Common)
Dust + slime build up inside the drain line and trap water in the indoor unit. This causes overflow and visible dripping.
- Signs: Water dripping from the indoor unit, gurgling sound, leak gets worse after long usage.
Our Solution: Expert Aircon Repair — Drain line clearing + drainage path restoration to stop the leak properly.
2. Dirty Drain Pan / Evaporator Coil (Overflow)
When the internal coil and drain pan are heavily contaminated, water cannot flow smoothly into the drain system and starts overflowing.
- Signs: Musty smell, weak airflow, water leak started after months of daily use, visible dirt around vents.
Our Solution: Aircon Chemical Wash — Deep cleaning of coil, blower area, and drain pan to remove sludge and restore water flow.
3. Installation Issue (Wrong Slope / Misalignment)
If the indoor unit is not level or the drainage slope is incorrect, water may not flow to the drain point and will leak from the unit.
- Signs: Leak appears soon after installation or after moving/servicing, recurring leaks even after cleaning.
Our Solution: Expert Aircon Repair — Alignment check + drainage correction to permanently stop recurring leaks.
How Our Technicians Diagnose the Leak
We pinpoint the source quickly to avoid repeated leaking:
- Leak Source Check: We confirm where water exits (front panel, corner, piping area).
- Drainage Flow Test: We test the drain path for blockage and backflow.
- Internal Inspection: We check drain pan, coil condition, and sludge buildup.
- Level & Slope Check: We verify installation alignment and drainage slope.
Why Water Leaks Are Common in Kuala Lumpur
KL humidity increases condensation, and daily usage accelerates slime buildup inside the drainage system. Without regular cleaning, small restrictions become full blockages — leading to overflow and leaks from the indoor unit.
Need the leak fixed today? Choose Aircon Repair or Chemical Wash.
Real Cases in Kuala Lumpur (Proof of Work)
Mont Kiara & Bangsar (Condominiums)
In high-rise condos across Mont Kiara and Bangsar, over 70% of indoor water leakage cases we handle are caused by clogged drainage and dirty drain pans. Chemical wash combined with drainage flushing usually resolves the issue on the same visit.
KL City Centre (High-Rise Apartments)
In KL city centre apartments, we often see aircon water leaking due to evaporator coil dirt buildup, which causes condensation to overflow instead of draining properly.
Cheras & Ampang (Landed Homes)
In landed homes around Cheras and Ampang, aircon leaks are frequently linked to installation slope issues or partially blocked drainage lines. Proper re-alignment and repair prevent repeat leakage.