AC Coil Leaks: Troublesome Culprits and Fixes

Home AC repair

AC coil leaks can be a persistent headache for homeowners, causing discomfort and potential damage to their air conditioning systems. Understanding the culprits behind these leaks is essential for effective troubleshooting and prevention.

From expanding refrigerant to corroded copper tubing, several factors can contribute to the development of AC coil leaks. Recognizing the signs of a leaking evaporator coil is crucial for timely intervention, but what are the most effective fixes?

In this discussion, we will explore the troublesome culprits behind AC coil leaks and delve into the potential solutions that can help homeowners regain control over their indoor comfort. Stay tuned to discover the secrets to keeping your AC system leak-free and efficient.

Causes of AC Coil Leaks

AC coil leaks can be caused by various factors. One common cause is the expanding refrigerant, which puts pressure on the evaporator coil and can lead to leaks. Corroded copper tubing is another frequent culprit, as the corrosion weakens the tubing and makes it more susceptible to leaks. Formic acid accumulation is also a potential cause, as it can accumulate on the coil over time and cause corrosion. Vibrations from the air conditioner can create holes in the tubing, leading to leaks as well. Additionally, the age of the unit plays a role, as older units are more prone to coil leaks due to wear and tear. Understanding these causes is crucial in diagnosing and addressing AC coil leaks.

Symptoms of a Leaking Evaporator Coil

Understanding the causes of AC coil leaks is essential for diagnosing and addressing this issue, and it is equally important to recognize the symptoms associated with a leaking evaporator coil. Here are three key symptoms to look out for:

  • Longer cooling time and weaker airflow: A leaking evaporator coil can result in reduced cooling efficiency. If you notice that your air conditioner takes longer to cool your space or if the airflow feels weaker than usual, it could be a sign of a leaking coil.
  • Frequent refrigerant fill-ups: A leaking evaporator coil often leads to a loss of refrigerant. If you find yourself needing to refill your refrigerant more frequently than usual, it could indicate a leak in the coil.
  • Increased humidity indoors: A leaking evaporator coil can also cause an increase in indoor humidity. If you notice that your space feels more humid than usual, even when your air conditioner is running, it may be due to a leaking coil.

Recognizing these symptoms can help you identify a leaking evaporator coil and take the necessary steps to address the issue promptly.

Solutions to Stop AC Coil Leaks

To effectively address AC coil leaks, there are several solutions that can be implemented to prevent further damage and restore optimal functioning of the air conditioning system.

One temporary fix is to add more refrigerant to the system, as this can help to seal small leaks and restore the cooling capacity. However, this is not a permanent solution and the leaks may reoccur.

Another option is to use a sealant specifically designed for AC coil leaks. This sealant can be applied to the affected areas of the coil, creating a barrier that prevents refrigerant from escaping.

Lastly, if the leaks are extensive or if the coil is too corroded to be repaired, it may be necessary to replace the evaporator coil altogether. This solution ensures a long-term fix and restores the system's efficiency.

It is important to consult with a professional HVAC technician to determine the most appropriate solution for your specific situation.

Cost of ReplACing an AC Coil

When considering the necessary steps to address AC coil leaks, it becomes imperative to weigh the potential expense associated with replacing an AC coil. The cost of replacing an AC coil can vary depending on several factors, including the manufacturer and the installation process.

Here are some key points to consider:

  • Warranty coverage: Some manufacturers offer warranty coverage that can significantly reduce the cost of replacing an AC coil. It is essential to check if your system is still covered by warranty before proceeding with the replacement.
  • Price range: The price range for replacing an AC coil can vary widely, with costs going up to $3,000. Factors such as the size of the unit and the complexity of the installation can influence the final cost.
  • Professional installation: It is crucial to hire a reputable HVAC repair and installation company to ensure the proper replacement of the AC coil. This will help prevent any further issues and ensure the longevity of your new coil.

Considering these factors will help you make an informed decision regarding the cost of replacing an AC coil.

Choosing a Reliable HVAC Service

Selecting a reputable HVAC repair and installation company is crucial when it comes to ensuring the reliability and efficiency of your air conditioning system. It is important to contact a company that has a proven track record in providing high-quality service and has experienced technicians who are knowledgeable about HVAC systems.

Regular maintenance is essential to prevent coil leaks and other AC problems, so choosing a company that offers comprehensive maintenance and tune-up services is advisable. Action Air Conditioning Heating and Solar is one such company that provides professional technicians who use industry-leading techniques.

Regular Maintenance to Prevent Coil Leaks

Regular maintenance is a crucial factor in preventing AC coil leaks and ensuring the long-term performance and efficiency of your air conditioning system. Here are three important steps you can take to prevent coil leaks:

  • Clean and inspect the coils regularly: Dust, dirt, and debris can accumulate on the coils, leading to corrosion and eventual leaks. Regular cleaning and inspection can help identify any potential issues before they worsen.
  • Check and replace air filters: Dirty or clogged air filters can restrict airflow, causing the coils to freeze and potentially leak. It is recommended to check and replace air filters regularly to maintain proper airflow and prevent coil leaks.
  • Schedule professional tune-ups: Hiring a professional HVAC technician for regular tune-ups can help identify any hidden problems with your AC system, including potential coil leaks. They can perform thorough inspections, clean coils, and make any necessary repairs or adjustments to prevent future leaks.

Action Air Conditioning Heating and Solar Services

To ensure the optimal functioning and longevity of your air conditioning system, it is essential to rely on the expertise of a reputable HVAC repair and installation company such as Action Air Conditioning Heating and Solar.

With years of experience in the industry, Action Air Conditioning Heating and Solar offers a wide range of services to address all your HVAC needs. Their team of professional technicians is highly skilled in diagnosing and repairing AC coil leaks, ensuring that your system operates efficiently.

Action Air Conditioning Heating and Solar also provides comprehensive maintenance and tune-up services, which can help prevent coil leaks and other AC problems.

Frequently Asked Questions

How Long Does It Typically Take for an AC Coil to Develop a Leak?

The time it takes for an AC coil to develop a leak can vary depending on several factors such as the age of the unit, quality of installation, and maintenance. On average, it can take several years for a leak to develop.

Can a Leaking AC Coil Be Repaired, or Does It Always Need to Be ReplACed?

A leaking AC coil can sometimes be repaired, but it may need to be replaced if the damage is extensive. It is best to consult with a reputable HVAC service to determine the most appropriate solution for your specific situation.

What Are Some Common Signs That Indicate a Refrigerant Leak From the AC Coil?

Common signs of a refrigerant leak from the AC coil include longer cooling time, weaker airflow, and the need for frequent refrigerant fill-ups. It is important to address these issues promptly to prevent further damage to the system.

Are AC Coil Leaks Covered Under a Standard Homeowners Insurance Policy?

AC coil leaks are not typically covered under a standard homeowners insurance policy. It is important to check with your insurance provider to determine if any additional coverage options are available for AC coil leaks.

Is It Possible to Prevent AC Coil Leaks by Using a Specific Type of Refrigerant?

Preventing AC coil leaks is not solely dependent on the type of refrigerant used. Regular maintenance, including cleaning and inspecting the coils, along with proper installation and avoiding corrosive substances, can help reduce the risk of leaks.


In conclusion, AC coil leaks can be a frustrating and costly issue for homeowners. Recognizing the symptoms of a leaking evaporator coil is crucial for prompt intervention.

While temporary solutions may provide some relief, replacing the evaporator coil is the most effective long-term fix.

The cost of replacing an AC coil can vary, but warranty coverage can help reduce expenses.

Contacting a reputable HVAC repair and installation company, like Action Air Conditioning Heating and Solar, for professional service is recommended to prevent coil leaks and other AC problems.

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