Is There Water Leakage in Your AC? – Here are the Causes and Solutions!

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2025-10-23
Ajay Kumar

There’s nothing more frustrating than switching on your air conditioner for comfort, only to notice water dripping from the indoor unit. Not only does this create a mess in your room, but it also raises concerns about your AC’s health. Many people assume water leakage is just a minor inconvenience, but in reality, it’s a sign that something inside the AC needs attention. If ignored, it could lead to reduced cooling, higher electricity bills, or even permanent damage to your appliance.

Every season plenty of Ac users face this issue, especially during humid months. As a trusted provider of AC repair and servicing across India, we know exactly why your AC leaks water and what can be done to fix it. In this article, we’ll explain the common causes of AC water leakage and the practical solutions—so you can understand what’s happening inside your unit and how professional servicing can save the day.

Why Does Water Leak from an AC?

To understand leakage, let’s first look at how an air conditioner works. When your AC runs, it not only cools the air but also removes excess moisture. This moisture condenses into water droplets on the cooling coil and is supposed to drain out through a pipe connected to the outdoor unit. If there’s any blockage, fault, or imbalance in this process, water ends up dripping inside your room instead of outside.

Now, let’s break down the main causes of AC water leakage and their solutions.

 

Cause 1: Clogged or Blocked Drain Pipe

The most common culprit behind water leakage is a clogged drain pipe. Over time, dirt, dust, or even mold can build up in the pipe that’s supposed to carry condensed water outside. When this pipe is blocked, water backs up and starts dripping from the indoor unit.

Potential Solution:
Our technicians use specialized tools to flush out dirt, dust, and mold from the drain pipe, restoring smooth water flow. During routine servicing, we also clean the drain tray (the small pan that collects condensed water) to ensure it doesn’t overflow. Regular maintenance is the simplest way to prevent this problem.

 

Cause 2: Dirty Air Filters

If your AC’s air filters are dirty, airflow is restricted. This causes the evaporator coil to get excessively cold and freeze. When the ice melts, it produces more water than the drainage system can handle, leading to leakage.

Carlcare Expert Solution:
We remove and thoroughly clean the air filters, ensuring proper airflow. Clean filters don’t just prevent leakage—they also improve cooling performance and reduce electricity consumption. As a user, you can also rinse filters once every 2–3 weeks during heavy usage, but professional cleaning ensures deeper results.

 

Cause 3: Low Refrigerant (AC Gas) Levels

When your AC runs on low refrigerant gas, the pressure inside the coils drops, which can again cause freezing on the evaporator coil. Once the ice melts, excess water spills inside the unit, causing leakage.

 Solution:
Our service teams check refrigerant levels during inspections. If gas is low, we identify whether it’s due to a leak in the system or natural usage, then refill it with genuine refrigerant. Restoring the right gas level ensures proper cooling and prevents further ice and water buildup.

 

Cause 4: Improper Installation

Sometimes, the issue lies not with the AC itself but with how it was installed. If the indoor unit isn’t tilted at the right angle, condensed water may not flow into the drain pipe correctly. Similarly, poorly connected drain pipes can cause water to drip into your room instead of outside.

Solution:
Our technicians re-check the installation angle and pipe connection. A slight adjustment often solves the problem completely. At Carlcare, we follow strict installation guidelines so that issues like these don’t occur in the first place.

 

Cause 5: Damaged or Rusted Drain Pan

The drain pan is the component that collects water from the cooling coil before it moves out through the pipe. Over time, this tray can rust, crack, or simply get misaligned, causing water to spill.

Solution:
We inspect the drain pan for wear and tear. If damaged, we replace it with an original spare part to ensure long-term durability. Using genuine parts is crucial here because cheap replacements often fail quickly, leading to recurring leakage.

 

Cause 6: Excess Humidity in the Air

During monsoons or in coastal regions, high humidity means the AC is pulling out more moisture than usual. This can overwhelm the drainage system, especially if the AC hasn’t been serviced recently.

Carlcare Expert Solution:
We recommend switching the AC to Dry Mode during high-humidity days. This mode reduces indoor moisture without overloading the cooling system. Alongside this, our seasonal maintenance service ensures that the unit is clean and prepared to handle excess moisture efficiently.

 

Now, 5 Tip to Prevent AC Water Leakage

  1. Clean the Air Filters Regularly
    Dust and dirt clogging the filters can block airflow, causing the evaporator coil to freeze. When that ice melts, it leads to water leakage. Cleaning your filters every 2–3 weeks keeps airflow smooth and reduces strain on your AC.
  2. Check and Clear the Drain Pipe
    The drain pipe carries out all the condensed water from your AC. If it gets clogged with dirt, algae, or mold, the water backs up and leaks indoors. A routine check or professional flush during servicing prevents this problem.
  3. Use Dry Mode in Humid Weather
    During monsoon or very humid days, switch your AC to dry mode. This reduces excess moisture in the room and prevents too much water from collecting inside the AC.
  4. Ensure Proper Installation and Leveling
    An AC that isn’t installed properly or is tilted incorrectly can cause water to collect in the wrong areas, leading to leaks. Always ensure professional installation and check that your indoor unit is level.
  5. Schedule Timely Professional Servicing
    Even with precautions, ACs need expert care. Regular servicing with Carlcare ensures the coils, drain tray, and refrigerant levels are checked and maintained. This not only prevents leakage but also boosts your AC’s cooling efficiency.

So, if you’re facing AC water leakage or want to avoid it altogether, don’t wait until the problem worsens. Book a service appointment with Carlcare today and enjoy uninterrupted, worry-free cooling.