Quick Answer: Why water is dripping from your indoor unit
If you see water dripping from the indoor unit, the most common causes in Kuala Lumpur are condensation not draining properly (partial drain restriction), heavy dirt/slime inside the coil area, or temperature/humidity mismatch (very cold setting + low airflow). Most cases are fixed by proper servicing (cleaning + drainage flush), or repair if the drain line, drain pan, or installation slope is faulty.
Common Reasons & Professional Fixes
1) Partial Drain Restriction (Slow Drain = Drips)
Even a partially blocked drain path can cause condensation to back up and drip from the indoor unit—especially after long usage.
- Signs: Dripping starts after 30–60 minutes, occasional gurgling sound, drip pattern is intermittent.
- What we do: Drainage flow test + flush + restore proper drain path to stop recurring drips.
Book: Aircon Servicing (cleaning + drainage flush) or Aircon Repair (if drain components are damaged).
2) Dirty Coil / Blower Area (Condensation “Splash”)
When the coil and surrounding area are dirty, condensation can collect unevenly and drip from edges instead of flowing cleanly into the drain pan.
- Signs: Musty smell, weaker airflow, visible dust at vents, drip increases on humid days.
- What we do: Deep internal cleaning to restore smooth water flow into the drain system.
Book: Aircon Servicing (recommended first step for most dripping cases).
3) Low Airflow + Very Cold Temperature Setting
In KL humidity, a very low temperature setting combined with low airflow can cause excess condensation and dripping.
- Signs: Dripping is worse at night, airflow feels weak, filter looks dusty, unit runs long hours.
- What we do: Airflow check + cleaning + performance test to stabilize condensation behavior.
Book: Aircon Servicing.
4) Indoor Unit Not Level / Wrong Drain Slope
If the indoor unit is slightly misaligned, water won’t flow correctly to the drain point and can drip from a corner or the front panel.
- Signs: Dripping appears soon after installation/relocation, same corner drips repeatedly, servicing doesn’t fully solve it.
- What we do: Level & slope check + correction to stop repeat dripping.
Book: Aircon Repair.
5) Frozen Coil Thawing (Drips After “Icing”)
If the coil freezes and later thaws, you can see sudden dripping. This often ties back to airflow restriction or a system issue that needs diagnosis.
- Signs: Weak airflow before dripping, unit feels “not cold” then drips, unusual water amount after turning off.
- What we do: Identify the root cause (airflow restriction vs. technical fault) and fix it correctly.
Book: Aircon Repair (diagnosis + permanent fix).
Fast Checklist: What to Do Right Now
- Turn the unit off for 10–15 minutes if dripping is heavy.
- Set to 24–26°C and increase fan speed after restarting (helps reduce excessive condensation).
- Check the filter (if it’s clearly dusty, dripping is likely related to airflow restriction).
- Do not ignore recurring drips — repeated condensation issues often become full drainage blockages.
How Our Technicians Diagnose Indoor Unit Dripping
- Drip Pattern Check: Front panel vs. corner vs. piping area (tells us overflow vs. slope vs. condensation behavior).
- Drain Flow Test: Confirm drainage speed and check for backflow or partial restriction.
- Airflow & Coil Condition: Inspect filter, blower area, coil contamination and wet spots.
- Level & Slope Verification: Confirm indoor unit alignment and drain gradient.
- Performance Test: Cooling + airflow stability after service/repair.
Why This Happens Often in Kuala Lumpur
Kuala Lumpur’s high humidity creates more condensation during daily usage. If airflow is reduced (dusty filter / internal buildup) or drainage is partially restricted, condensation won’t drain cleanly—so you see water dripping from the indoor unit instead of flowing out through the drain line.
Need it fixed today?
Start with Aircon Servicing (most common fix), or choose Aircon Repair if the dripping keeps coming back.
FAQ (Short Answers)
Is dripping the same as “leaking”?
No. Dripping is often condensation behavior or a partial drainage issue. “Leaking” usually implies overflow or a fault that consistently pushes water out.
Can I keep using the aircon if it’s dripping?
If dripping is light and occasional, you can use it short-term, but recurring dripping should be fixed to prevent wall damage, mold, and a full drain blockage.
Will normal servicing stop indoor unit dripping?
In many KL cases, yes—if the cause is airflow restriction or early drainage buildup. If the unit is misaligned or components are faulty, repair is required.
Real Cases in Kuala Lumpur (Proof of Work)
Titiwangsa (High-Rise Condominiums)
In Titiwangsa condominiums, we frequently handle cases where the indoor unit starts
dripping water after long evening usage. In most situations, the issue is not a full blockage,
but a slow drainage combined with high humidity and reduced airflow.
After proper aircon servicing and drainage flow restoration, the dripping usually stops immediately,
without the need for part replacement.
Kepong (Mixed Condos & Landed Homes)
In Kepong, indoor unit water dripping is commonly linked to
dust-heavy environments and early internal dirt buildup.
We often find that the coil and blower area are partially contaminated,
causing condensation to form unevenly and drip from the front panel.
A thorough internal cleaning and airflow stabilisation resolves the issue in most cases on the same visit.
Cheras (Landed Homes & Older Apartments)
In Cheras properties, especially landed homes and older apartments,
water dripping from the indoor unit is frequently caused by
slight installation slope issues or aging drainage routing.
Even when the unit appears functional, improper alignment prevents condensation
from flowing correctly into the drain line.
Correcting the indoor unit level and restoring proper drainage slope
prevents recurring dripping and long-term moisture damage.