Have you ever opened your aircon and noticed a strange jelly-like substance in the drain pan or pipe?
If yes, that’s called aircon drain jelly—and while it may look harmless, it can cause serious blockages.
What Is Aircon Drain Jelly?

To put it simply, aircon drain jelly is a slimy buildup caused by mold, algae, and bacteria that thrive in moist environments.
Over time, this jelly can clog the drain line, leading to leaks, poor cooling, or even a shutdown.
Why Is It a Problem?
Here’s why you should take it seriously:
Water leaks may damage your walls or ceiling
Mold spores can lower indoor air quality
Clogged drain lines put extra stress on your unit
How to Prevent Drain Jelly
Thankfully, preventing this issue is quite simple. Here’s what you can do:
1. Schedule regular maintenance
First, get your aircon cleaned professionally every 3–6 months.
2. Flush the drain line
Next, flushing with a mild vinegar solution can help prevent build-up.
3. Install anti-fungal tablets
These are safe, affordable, and effective in keeping jelly at bay.
Need Help?

If you suspect a jelly blockage, it’s best not to ignore it.
Professional cleaning ensures everything is cleared safely—no mess, no guesswork.
Call Lion City Aircon Today
Let us clear your aircon drain line and keep your unit in top shape.
📞 Call us at +65 8818 5781
🌐 Book now: lioncityaircon.sg