A/C Leak Stop: Good or Bad?

A/C Leak Stop: Good or Bad?



Although it may seem like a slam dunk solution for those small persistent leaks that require topping off year after year. There are however two different schools of thought on application of leak stop. On one hand you have HVAC professionals who insist nothing should ever be present in the system except refrigerant and oil. On the other, there are those that insist that it comes down to using a trusted product. Since it is not a permanent repair, there are specific, but limited uses for it. 

What is Leak Stop?

An air conditioning system is a closed loop system, meaning all the refrigerant is hermetically sealed in it. The same amount of refrigerant that existed in the system since installation is the same amount you should always have. Sometimes small leaks occur, usually do to improper installation practices. An HVAC service professional may offer you leak stop as a repair option, but is that the right choice? This depends on the size of the leak. A service professional should always try to identify the source of the leak first and calculate the rate at which its leaking. 
Leak stop is not a guaranteed solution. Its application is very specific and limited, but often abused and misapplied. Leak stop is basically fix-a-flat for your leaking air conditioning coils. Its composed of a formula that seals small leaks in the coils. The key word is small, leak stop will have hardly any effect on larger leaks. 
The key thing to remember through all this, is that if your system leaks at all it must be repaired or have the defective part replaced. The EPA does not like to see systems topped off continuously year after year. In 2019 the EPA is cracking down on systems with over 50 lbs with leak rates greater than 10 percent a year. They have issued a directive to repair or replace or be subject to fines. 

I Have a Leak, Now What?

An HVAC service company is equipped with many ways to find and fix leaks. The usual method is electronic leak detection. Micro leaks are harder to access usually and therefore harder to locate even with the most advanced leak detectors on the market. There are additives like UV dyes that can be added to the HVAC system. These require a second visit and inspection with a UV light to determine the location(s) of the leak. If a leak is present but unable to be located, leak stop may be a viable solution. 
Using the criteria listed below to determine if leak stop is appropriate. 
  • Hard to find leaks
  • Leaks is not accessible 
  • Multiple micro leaks 
  • System is R22 based and very old
We are seeing a large number of micro leaks in the channels of the evaporator coils used in systems today. In these cases leak stop could be an effective, lower cost solution that replacing. First though, the company servicing the equipment should check the status of the units warranty with the manufacturer. If the unit is still covered by the manufacturers warranty, you should consider warranty replacement. This does not cover labor costs though and can still be a repair costing in excess of $1000. Another consideration is voiding the manufacturers warranty by injecting additives into it. Many manufacturers have taken the position, that if they can prove a stop leak agent was used in the system, the warranty is then void. 

An Ounce of Prevention…

The saying goes, an ounce of prevention is worth a pound of cure. When it comes to leak in your air conditioning unit there is simply no substitute for proper installation practices. Clean, dry and tight are the words we use to describe proper installation of refrigerant piping. At Top Gun Heating and Air we say the most important day in the life of a system, is the day its installed. Proper installation practices include using nitrogen during brazing, pressure testing, and pulling a triple vacuum with a micron gauge to ensure all the moisture present in the system is evacuated. If you have a leak in your air conditioning system, don’t hesitate to give us a call or fill out a service request form by clicking here.

Comments

  1. Pretty good post. I just stumbled upon your blog and wanted to say that I have really enjoyed reading your blog posts. I hope you post again soon. Big thanks for the useful info. leak detection gold coast

    ReplyDelete
  2. This is a smart blog. I mean it. You have an excellent knowledge about this topic. Thanks for sharing such a great blogs to us. active leak detection

    ReplyDelete
  3. Thanks for sharing such a nice article. I always recommend your blog. Keep sharing informative information. I will back to this blog again sure.
    Heating repair in Taylors SC

    ReplyDelete
  4. Very well written article. It was an awesome article to read. Complete rich content and fully informative. I totally Loved it. active leak detection

    ReplyDelete
  5. Your information is really good and definitely that things are very useful. I'm impressed with your pleas to share much information with us.
    vehicle air conditioning installation

    ReplyDelete
  6. I will share it with my other friends as the information is really very useful. Keep sharing your excellent work. active leak detection

    ReplyDelete
  7. I will share it with my other friends as the information is really very useful. Keep sharing your excellent work. plumber gold coast

    ReplyDelete
  8. I’m genuinely impressed with your blog. It's a really good post. I’m definitely sharing your information with my friends. It's a valuable post for everyone. hvac parts toledo

    ReplyDelete
  9. I read this article, it is really informative one. Your way of writing and making things clear is very impressive. Thanking you for such an informative article. active leak detection

    ReplyDelete
  10. I was looking for such type of information for many days, and finally I find it in your blog. You have given me such a good knowledge through this post. Thank You. lpg gas suppliers UK

    ReplyDelete
  11. The article was up to the point and described the information very effectively. Thanks to blog author for sharing an informative post. Plumber In Brampton

    ReplyDelete
  12. Really, this is an impressive as well as Useful post for me. I got the most valuable and informative information from here. Thanks for sharing, I request you to keep sharing such blogs. outdoor handyman services

    ReplyDelete
  13. The most reliable blog for Canada Visa application and migration services Canada visa Application

    ReplyDelete
  14. Kid Rock Net Worth 2021 The most reliable blog for celebrity Net Worth 2021 Forbes Net worth 2021

    ReplyDelete
  15. A home requires constant maintenance for the overall safety and well-being of both you and your family members. To keep your home in maximum condition, you need to repair all damaged equipment and install the latest products to make your home more functional for today’s environment.my website

    ReplyDelete
  16. It is a proficient article that you have shared here about Air Conditioning. I got some unique and valuable information from your article. Thankful to you for sharing this article here.
    air duct cleaning oak brook

    ReplyDelete
  17. I wanted to thank you for this great Information and knowledge, I definitely loved every little bit of it. I have you bookmarked your web site to check out the latest stuff you post. Your blog is eye-catching. I get pleasure from it. Thanks for sharing this beautiful piece of writing with me, get more information at Logan Air Conditioning Service for more nexgen electrical air & solar related information and knowledge.

    ReplyDelete
  18. Extremely useful information which you have shared here about AC leak. This is a great way to enhance knowledge for us, and also beneficial for us. Thank you for sharing an article like this.
    air duct cleaning wilmette

    ReplyDelete
  19. The Importance of a Plumbing System in Building a Home. Water gives life. Without water, no living creature or plant on . iplumberpro.com

    ReplyDelete
  20. Ensuring the safety of home equipment and appliances is necessary to prevent any security hazard. Learning about LPG regulator, electricity etc. is crucial. Thank you for sharing your thoughts.

    ReplyDelete
  21. Instead of rushing to hire someone that may not be right for the job, follow the tips below to aid your search for a reliable and helpful handyman. Click here - handyman in Manchester

    ReplyDelete
  22. Your contents are completely awesome and share worthy. I really appreciate your efforts that you put on this. Keep sharing. For more electrician london related information visit Emergency Electrician - 24 hour - Grip Electric Limited

    ReplyDelete
  23. The dropin whirlpool bath is the most common style of whirlpool baths. This bath is mainly dropped in to a carved recess or space. The bathtub matches its surroundings and saves space without compromising on its aesthetic appeal.

    ReplyDelete

Post a Comment

Popular posts from this blog

What to Look For When Hiring a HVAC Professional