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Water leaking from the air conditioner drips from the cooler. 

How to Fix an Air Conditioner Leaking Water Inside

July 17, 2023

When the scorching heat of summer arrives, a well-functioning air conditioner becomes a lifeline for many households. However, it can be incredibly frustrating to discover that your trusty cooling unit is leaking water inside your home. Not only does this issue disrupt your comfort, but it can also lead to water damage and potential mold growth if left unaddressed. In this blog post, we will provide you with a comprehensive guide on how to fix an air conditioner leaking water inside, with a focus on practical solutions offered by the experts at Lickety-Split.

Understand the Causes:

Before jumping into the troubleshooting process, it’s crucial to understand why your air conditioner might be leaking water inside. The common causes include:

Clogged Drain Line: Over time, debris, dust, and algae can accumulate in the drain line, obstructing the flow of water and causing it to back up into your home.

Improperly Installed or Damaged Condensate Pan: A faulty condensate pan or incorrect installation can lead to water leakage.

Frozen Evaporator Coil: If your evaporator coil freezes up due to restricted airflow or low refrigerant levels, it can thaw and create excessive moisture that leaks into your living space.

Turn Off the Unit:

Before attempting any repairs, it’s essential to turn off the air conditioner and unplug it from the power source. This ensures your safety and prevents further damage to the unit.

Inspect and Clean the Drain Line:

Start by locating the drain line, usually connected to the indoor air handler or furnace. Disconnect the drain line and visually inspect it for any clogs. If you notice a blockage, use a pipe cleaner or a mixture of vinegar and warm water to remove the obstruction. After cleaning, flush the drain line with water to ensure it is clear of debris.

Check and Repair the Condensate Pan:

Inspect the condensate pan for cracks, rust, or any signs of damage. If you find any issues, contact Lickety-Split or a professional technician to repair or replace the pan accordingly.

Address the Frozen Evaporator Coil:

If you suspect a frozen evaporator coil, allow it to thaw naturally. Ensure proper airflow around the unit by removing any obstructions or dirty air filters. If the problem persists, it is advisable to contact a professional technician to inspect the refrigerant levels and repair any leaks.

Regular Maintenance:

Prevention is key when it comes to avoiding air conditioner leaks. Regular maintenance, such as cleaning or replacing air filters, inspecting drain lines, and scheduling professional tune-ups, can help identify and address potential issues before they become major problems.

Seek Professional Assistance:

While some air conditioner leaks can be resolved with DIY techniques, there are instances where professional assistance is required. If you are uncomfortable or unsure about performing repairs yourself, it’s best to contact Lickety-Split or a qualified HVAC technician. They possess the knowledge, experience, and specialized tools necessary to diagnose and fix complex air conditioner issues.

Contact Lickety-Split for Help:

A leaking air conditioner can put a damper on your indoor comfort and potentially damage your home. By following the steps outlined in this guide, provided by the experts at Lickety-Split, you can troubleshoot and fix common causes of water leaks. Remember, regular maintenance and seeking professional help from our team at Lickety-Split when needed will not only resolve the immediate problem but also extend the lifespan of your air conditioning unit. Stay cool and comfortable all summer long with a well-maintained and leak-free air conditioner.


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