Singapore’s hot and humid weather makes air conditioning essential in almost every home. But if your LG aircon starts leaking water, it can become a huge problem. Water dripping from your indoor unit may damage furniture, flooring, and even pose safety hazards. Let’s explore the reasons why LG air conditioners leak water and how to fix them.
Why Is Your LG Aircon Leaking Water?
Below are a few common reasons why an LG aircon can leak water:
Clogged Drain Pipe
Clogged or blocked drain pipe can be the main reason for aircon water leakage. In Singapore’s high humidity, condensation forms fast, and dust or dirt can accumulate in the drain pipe. When the water can’t drain the way it’s meant to, it gets pushed back and drips from the indoor unit.
Dirty or Blocked Filters
Dirty filters block the airflow. This lack of air makes the evaporator coil ice over, and once the coil melts, water spills out the drain pan and cause leakage when it overflows. Considering the weather conditions and usage pattern in Singapore, this can happen within a few weeks if the filter is not cleaned.
Incorrect Slope or Poor Installation
If your LG system isn’t installed with the right tilt, the water won’t flow the way it should. Even a slight lean can cause aircon water leakage. You see this more in older resale flats or condos.
Low Refrigerant Level
If the refrigerant level goes down, the coils start to freeze. When that ice melts, it can produce more water than the drain can handle. If the process continues, you will have to face water leakage.
Damaged Drain Pipe
Throughout the years—particularly with older units—the drain pan that gathers excess condensation can develop cracks or rust spots. If the drain pan is cracked or corroded, it will cause water leakage.
What to Do When Your LG Aircon Leaks Water
Book a Professional Aircon Servicing
In Singapore, it’s advisable to get your LG aircon serviced at least every 3–6 months. A technician will:
- Clean the filters and evaporator coil
- Flush and vacuum the drainage pipe
- Check refrigerant levels
- Inspect the indoor unit installation
For urgent issues, opt for chemical wash or chemical overhaul services.
Use Aircon on Auto Mode or Dry Mode
During rainy seasons or high humidity, switching to “Dry Mode” helps reduce excess moisture, easing the burden on the drainage system. Auto mode helps balance cooling and energy efficiency.
Install a Drainage Pump (if needed)
In condos or commercial units where natural drainage isn’t possible, a condensate pump may be necessary to direct water flow safely.
How to Prevent Water Leaks in the Future
- Schedule regular maintenance with an HDB-licensed or BCA-registered contractor
- Clean filters monthly if you use aircon daily
- Ensure proper installation by checking the unit’s level
- Use energy-efficient settings to reduce strain on the compressor
FAQ
Why does my LG aircon only leak when it rains?
When heavy rain occurs alongside high humidity, it can force more water through a blocked drain pipe that normally handles light flows. In some HDB or condo layouts, rain can also backflow the drain system if the slope is poor. All these can cause water leakage.
Can I fix a leaking LG aircon by myself?
You can clean the aircon filter or even the drainage pipe. For more complicated problems such as aircon gas recharge or repairing a damaged drain pan, you need to call a technician.
Is a water leak from the aircon a safety risk?
Yes. If water reaches electrical parts, it can short-circuit. If it soaks carpet or concealed walls, mold can grow. Also, flooring and furniture may warp.
How often should I service my LG aircon in Singapore?
For normal home use, aim to service your LG aircon every 3 to 4 months. However, if you are a heavy user—it’s wise to have it checked every 2 to 3 months.
Final Thoughts
A leaking LG aircon can be stressful. The good news is most leaks are preventable with regular maintenance and timely service. Don’t wait until water damage ruins your walls or furniture—get your LG air conditioner checked regularly and enjoy a cool, worry-free home.
