If your aircon is leaking water from the indoor unit, it’s usually a drainage, tray, alignment, or icing/condensation problem. We locate the exact cause and fix it properly — clean work, clear explanation, and a repair aimed to stop repeat leaks.
When You Need This Service
- Water dripping from the indoor unit cover
- Wet wall / stains under the aircon
- Puddles on the floor (especially in condos)
- Gurgling sound from the drain line
- Leak happens after long usage or overnight
- Not cold + water leak (often linked to icing)
Common Causes of Indoor Unit Water Leaks (KL Climate)
In Kuala Lumpur, high humidity + dust can block drainage faster and increase condensation load. These are the most common causes we fix:
- Clogged drain line (sludge/algae/dust blocking water flow)
- Dirty drain tray (pan) causing overflow
- Indoor unit not level (water spills to one side)
- Loose/broken drain pipe connection
- Cracked drain tray (hidden leaks behind the cover)
- Coil icing → heavy water during defrost → overflow
- Airflow restriction (dirty filters/blocked return air) contributing to icing
What Our Water Leak Fix Includes
- Leak source diagnosis: drain line / tray / pipe / condensation overflow
- Drain line clearing + flushing to restore proper water exit
- Drain tray cleaning & sanitising (remove sludge/algae buildup)
- Levelling / alignment correction if unit angle causes overflow
- Connection checks for drain hose fitment and leak points
- Post-fix test: drainage flow + cooling + leak confirmation
How We Diagnose the Leak (So It Doesn’t Return)
- Drainage flow test: verify water exits without backflow
- Tray overflow mapping: identify spill edge and direction
- Unit levelling check: mounting stability + angle
- Airflow & coil condition check: detect icing risk / condensation overload
- Target inspection: joints, tray cracks, drip pattern confirmation
Quick Troubleshooting Guide (For Homeowners)
If you see this… it usually means:
- Slow dripping only → partial drain blockage or tray contamination
- Sudden heavy leak → drain line fully clogged or tray overflow
- Leak + not cold → possible coil icing / airflow restriction
- Leak only after hours → drainage can’t keep up / backflow
- Water from one side → indoor unit not level
If water is near electrical points or dripping into ceiling/walls (condo), treat it as urgent to avoid damage.
What to Expect During Service
- Clean work: we contain water and protect floor/wall around the unit
- Clear explanation: we explain the root cause before fixing
- Practical prevention: what to do to reduce repeat leaks
Units We Commonly Repair
- Wall-mounted split aircon (most common indoor leak type)
- Cassette unit (common in offices/condos)
- Multi-split indoor units
Service Coverage (Kuala Lumpur)
We handle water leak repairs across Kuala Lumpur for condos, landed homes, and offices. Send your area and unit type on WhatsApp — we’ll confirm scheduling.