Why is my aircon leaking water?

Aircon water leaking


Air conditioning is essential in Singapore’s hot and humid climate, so when you notice aircon water leaking, it can be both frustrating and worrying. A leaking aircon is not just a nuisance—it may also be a sign of deeper issues like poor maintenance, faulty components, or installation problems. In this article, Letscool Aircon explains the most common reasons your aircon is leaking water, what warning signs to watch out for, and how professional aircon servicing Singapore can help prevent costly damage.

Clogged Drainage System – The Most Common Culprit


One of the main reasons for aircon water leakage is a clogged drain pipe. Over time, dust, dirt, and mold build up inside the drainage system, blocking the flow of condensed water. When this happens, water backs up and starts dripping from your indoor unit.

Regular aircon general servicing helps keep the drainage pipe clean and clear. If the blockage is severe, professionals may recommend an aircon steam wash or aircon chemical wash to remove stubborn dirt and bacteria. Ignoring this issue can lead to bigger problems such as water damage to walls and ceilings, or even cause your aircon not cold due to restricted airflow.

Dirty or Frozen Evaporator Coils


When your aircon filters or coils are dirty, airflow becomes restricted. This can cause the evaporator coils to freeze. Once the ice melts, excess water may overflow from the drain pan, leading to leakage. aircon trunking

This is where deeper cleaning methods like aircon chemical overhaul or aircon compressor servicing become important, especially for older units. At Letscool Aircon, we often see customers delay servicing until their aircon light blinking or an aircon error code appears. By then, the damage is usually more serious and expensive to fix. Routine maintenance by the best aircon servicing Singapore providers can help prevent this altogether.

Poor Aircon Installation or Incorrect Unit Leveling


Improper aircon installation Singapore is another common reason for water leakage. If the indoor unit is not installed at the correct angle, water will not flow properly into the drain pipe and may leak out instead.

This issue is often seen in newly installed systems or after renovation work. A professional technician from Letscool Aircon will ensure correct alignment, proper insulation, and secure mounting during installation. Correct installation not only prevents leakage but also improves cooling efficiency and extends the lifespan of your system. Mitsubishi Aircon Installation

Low Refrigerant Levels and Gas Issues


Low refrigerant levels can cause pressure imbalances inside your aircon system, leading to coil freezing and subsequent water leakage. This issue often goes hand in hand with aircon not cold complaints.

A professional aircon gas top up can resolve the issue, but it’s important to identify the root cause of the gas leak first. Qualified experts in aircon repair Singapore will check for leaks, damaged pipes, or faulty components. Using original aircon spare parts ensures your unit operates safely and efficiently after repairs.

Faulty Components and Warning Signs You Shouldn’t Ignore


Sometimes, water leakage is a symptom of deeper mechanical or electrical issues. A damaged drain pan, faulty pump, or malfunctioning sensors can trigger leakage along with warning signs like aircon light blinking or displaying an aircon error code.

If left unresolved, these problems may require major repairs or even system replacement. Signing up for an aircon service contract with Letscool Aircon gives you peace of mind through scheduled maintenance, priority support, and exclusive aircon promotion deals. Preventive care is always more affordable than emergency repairs.

Why Choose Letscool Aircon for Reliable Aircon Servicing?


At Letscool Aircon, we specialize in comprehensive aircon servicing Singapore, from basic cleaning to advanced solutions like aircon chemical wash, aircon steam wash, and aircon compressor servicing. Our experienced technicians are trained to diagnose issues quickly and accurately, ensuring your aircon runs efficiently without leaks or performance issues.

Whether you need routine maintenance, urgent aircon repair Singapore, or professional aircon installation Singapore, we deliver reliable solutions tailored to your needs. With transparent pricing, quality workmanship, and flexible service plans, we aim to be your trusted choice for the best aircon servicing Singapore.

Final Thoughts


A leaking aircon should never be ignored. From clogged drain pipes to refrigerant issues and faulty installation, the causes can vary—but the solution often starts with professional servicing. Regular maintenance not only prevents aircon water leakage but also improves cooling performance, energy efficiency, and overall comfort.

If your aircon is leaking, not cooling properly, or showing warning signs, contact Letscool Aircon today. Our expert team is ready to keep your aircon system running smoothly—rain or shine.

Aircon servicing Singapore

Aircon installation

11 Mandai Estate,

 #05-15 Eldix,

Singapore 729908

Mail ID: [email protected]

Service - Call: +65 9862 3678  (or) WhatsApp us: https://wa.me/6598623678 

Installation - Call: +65 94507178  (or) Whats App us: https://wa.me/6594507178

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