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Why Is My Aircon Leaking Water From Indoor Unit?
Posted: Mar 28, 2026
Aircon Water Leaking
If you’ve noticed water dripping from your indoor aircon unit, you’re not alone. Aircon water leakaging is one of the most common issues faced by homeowners in Singapore. While it may seem like a minor inconvenience at first, ignoring it can lead to bigger problems such as water damage, mould growth, and reduced cooling efficiency.
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In this guide, we’ll explain the main reasons why your aircon is leaking water, how to fix it, and when to call professionals like LetsCool Aircon and Services Singapore for expert help.
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Clogged Drain Pipe – The Most Common CauseOne of the primary reasons for aircon water leakaging is a clogged drainage pipe. Your aircon removes moisture from the air and drains it out through a pipe. Over time, dust, dirt, and algae can block this pipe, causing water to back up and leak from the indoor unit.
This issue is often seen in units that haven’t undergone regular aircon general servicing. A blocked drainage system can also lead to unpleasant odours and even trigger an aircon error code in some models.
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Scheduling routine aircon servicing singapore helps prevent such blockages. For more stubborn clogs, an aircon steam wash or aircon chemical wash is highly effective in clearing the drainage system and restoring proper flow.
Dirty Filters and Frozen CoilsAnother common cause of leaks is dirty air filters. When filters are clogged, airflow is restricted, causing the evaporator coils to become too cold and freeze. When the ice melts, excess water can overflow and leak from the unit.
This problem is often accompanied by aircon not cold issues, as the system struggles to cool the room efficiently. You may also notice aircon light blinking, indicating that the unit is under stress.
Regular cleaning through aircon general servicing can prevent this. In more severe cases, a thorough aircon chemical overhaul may be required to clean internal components and restore optimal performance.
Improper Installation or Damaged ComponentsIncorrect aircon installation singapore can also lead to water leakage. If the unit is not installed at the proper angle, water may not flow correctly դեպի the drainage pipe, causing it to drip indoors.
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Additionally, damaged or worn-out components such as the drain pan, insulation, or pipes can contribute to leaks. In such cases, replacing faulty aircon spare parts is necessary to resolve the issue.
Professional aircon repair singapore services are essential for diagnosing and fixing these problems. At LetsCool Aircon and Services Singapore, trained technicians ensure proper installation and repair to prevent recurring issues.
Low Refrigerant and System IssuesLow refrigerant levels can also cause your aircon to leak water. When refrigerant is insufficient, it can lead to freezing of the evaporator coils, which eventually results in water leakage when the ice melts.
This issue often comes with other warning signs such as:
Aircon not cold
Midea Aircon Not cold
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Hissing sounds from the unit
Increased energy consumption
An aircon gas top up can help restore proper refrigerant levels, but it’s important to check for leaks first. Ignoring this problem can lead to more serious damage, including compressor failure, which may require aircon compressor servicing.
Why Regular Maintenance Is ImportantMany aircon leakage problems can be avoided with proper maintenance. Engaging the best aircon servicing singapore provider ensures your system is regularly inspected and cleaned.
LetsCool Aircon and Services Singapore offers comprehensive maintenance solutions, including:
Routine aircon general servicing
Deep cleaning with aircon chemical wash and aircon chemical overhaul
Advanced cleaning using aircon steam wash
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Affordable aircon service contract packages
Access to quality aircon spare parts
Regular servicing not only prevents leaks but also improves cooling efficiency and extends the lifespan of your unit.
When Should You Call a Professional?While minor issues like cleaning filters can be done at home, certain situations require expert attention. Contact a professional if:
Water leakage persists despite cleaning
You notice aircon light blinking or an aircon error code
Daikin Aircon Light blinking
Mitsubishi aircon light blinking
Midea aircon light blinking
Panasonic Aircon Orange Light
The unit is not cooling properly (aircon not cold)
There are signs of major blockage or component damage
Delaying repairs can worsen the problem and increase repair costs.
Save Money with Service Contracts & PromotionsTo avoid unexpected breakdowns and costly repairs, consider signing up for an aircon service contract. These packages include regular servicing at scheduled intervals, ensuring your aircon stays in top condition.
Additionally, take advantage of aircon promotion deals offered by LetsCool Aircon and Services Singapore. These promotions make it more affordable to maintain your system without compromising on quality.
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Final ThoughtsAircon water leakaging from the indoor unit is a common issue, but it should never be ignored. Whether it’s a clogged drain pipe, dirty filters, or low refrigerant, addressing the root cause early can save you from costly repairs and inconvenience.
Regular aircon servicing singapore, including aircon general servicing, aircon chemical wash, and aircon chemical overhaul, plays a crucial role in preventing leaks and maintaining system efficiency.
For professional and reliable solutions, trust LetsCool Aircon and Services Singapore. From aircon repair singapore to aircon installation singapore, their expert team ensures your aircon operates smoothly—keeping your home cool, dry, and comfortable all year round.
Aircon servicing Singapore
Aircon installation
11 Mandai Estate,
#05-15 Eldix,
Singapore 729908
Mail ID: info@letscoolaircon.com.sg
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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An experienced SEO specialist and content writer, the author creates engaging, search-optimized articles focused on air conditioning services. With a passion for delivering valuable insights, they help readers make informed decisions. Their expertise
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