How to Fix a Leaking AC Unit

How to Fix a Leaking AC Unit

Troubleshooting a Leaking AC Unit 

Is your AC unit leaving puddles of water on your floor, or do you notice moisture buildup around the indoor unit? A leaking air conditioner can lead to water damage and reduced cooling efficiency if left unaddressed. At Liam Services, we understand the urgency of resolving AC issues promptly. Here’s a comprehensive guide on how to fix a leaking AC unit and restore comfort to your home. 

Identify the Source of the Leak  

The first step in fixing a leaking AC unit is determining the source of the problem. Check for leaks around the indoor and outdoor units, as well as any visible signs of water accumulation. Common causes of AC leaks include clogged drain lines, frozen evaporator coils, and damaged condensate pans. 

Clear Clogged Drain Lines  

Clogged condensate drain lines can cause water to back up and overflow, leading to leaks. Use a wet/dry vacuum or a thin brush to remove any debris or algae buildup from the drain lines. Flushing the drain lines with a mixture of vinegar and water can also help clear stubborn clogs and prevent future blockages. 

Inspect the Evaporator Coil  

A frozen evaporator coil can cause excess condensation to form and leak from the unit. Check the evaporator coil for ice buildup and ensure proper airflow around the coil. Replace dirty air filters and clean the evaporator coil with a soft brush or coil cleaner to improve cooling efficiency and prevent future leaks. 

Check the Condensate Pan  

Damaged or overflowing condensate pans can result in water leaks around the indoor unit. Inspect the condensate pan for cracks, rust, or signs of corrosion. Replace any damaged pans and ensure proper drainage to prevent water accumulation and leaks. 

Seal Air Leaks  

Air leaks around the AC unit can contribute to excess moisture buildup and water leaks. Seal gaps and cracks in the ductwork, insulation, and around the unit using weatherstripping or duct sealant. Proper insulation and sealing can improve energy efficiency and reduce the risk of leaks. 

Schedule Professional Maintenance  

Regular maintenance is essential for preventing AC leaks and ensuring optimal performance. Schedule routine maintenance visits with Liam Services to have your AC inspected, cleaned, and tuned up by our experienced technicians. Our comprehensive maintenance services can identify and address potential issues before they lead to costly repairs. 

Contact Liam Services Today  

Don’t let a leaking AC unit disrupt your comfort and damage your home. Contact Liam Services at (302) 273-3841 for reliable AC repair near you in Hockessin, DE, Wilmington, Newark, Middletown, and Smyrna. Our skilled HVAC technicians are standing by to provide prompt and professional service to restore your AC’s performance and efficiency. 


Can you fix an AC leak yourself?  

While it’s tempting to attempt DIY repairs, fixing an AC leak yourself can pose risks and may not effectively address the underlying issue. AC systems are complex, and leaks can stem from various sources, including refrigerant lines, coils, or drainage components. For safe and reliable repairs, it’s best to enlist the expertise of trained HVAC professionals. 

Should I turn off my AC if it’s leaking water?  

If you notice your AC unit leaking water, it’s advisable to turn it off to prevent further damage and potential safety hazards. Allowing the unit to continue running while leaking can lead to electrical issues, water damage to your property, and mold growth. By shutting off the AC and contacting Liam Services for professional repairs, you can avoid costly damage and ensure the safety of your home. 

Are AC leaks worth repairing?  

Addressing AC leaks is essential to maintain the efficiency and functionality of your cooling system. Even small leaks can lead to significant problems over time, such as reduced cooling performance, increased energy consumption, and potential water damage. By investing in timely repairs, you can prevent further damage, prolong the lifespan of your AC unit, and maintain comfortable indoor temperatures. 

How much does it cost to fix a leak in an AC unit?  

The cost of repairing an AC leak can vary depending on factors such as the location and severity of the leak, the type of refrigerant used, and the extent of damage to other components. Minor leaks may require simple repairs, while more extensive leaks or damage could entail higher costs. To receive an accurate estimate for repairs tailored to your specific situation, it’s best to schedule a consultation with Liam Services. 

How long will AC last with a leak? 

The lifespan of an AC unit with a leak can vary depending on factors such as the size and location of the leak, the age and condition of the unit, and how well it’s maintained. While some leaks may have minimal immediate impact on performance, neglecting repairs can lead to accelerated wear and tear, reduced efficiency, and premature system failure. To ensure the longevity of your AC unit and avoid costly repairs or replacements, it’s essential to address leaks promptly. 

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