HVAC systems often utilize copper coils. In some cases, when exposed to certain organic substances, the copper coils and other copper components may fail due to formicary corrosion. If formicary corrosion occurs, complete replacement of the system may be necessary. SunCoast Air Conditioning LLC (the “Seller”) does not warrant, guarantee, or assume any liability or responsibility for formicary corrosion or for the repair or replacement of any equipment that fails as a result of formicary corrosion. It is the responsibility of the purchaser to ensure that they have adequate protection or insurance against such events or conditions.
The Seller excludes all liability or responsibility for formicary corrosion, including any costs related to investigation, repair, or replacement of equipment, and any incidental, special, or consequential damages arising from equipment failure due to formicary corrosion. This exclusion applies regardless of the cause of the formicary corrosion. The purchaser assumes all risks associated with formicary corrosion and agrees to hold the Seller harmless from any and all claims, demands, and legal actions, both at law and in equity, for any damages—including direct, indirect, consequential, special, and incidental damages—that may arise from or relate to formicary corrosion of any part of the equipment or goods provided by the Seller.
This exclusion supersedes all other terms, conditions, guarantees, or warranty language that may exist between the Seller and any other party.
What It Means for Your System
Formicary corrosion is a slow form of pitting that cuts tiny, branching tunnels through copper tubing. The tunnels are so small that a coil can look perfectly healthy from the outside and still develop a refrigerant leak that is difficult to trace.
The organic substances linked to it are common around the house, including some cleaning products, adhesives, paints, new flooring and cabinetry, air fresheners and aerosol sprays. Good ventilation helps, and so does keeping these products away from the air handler and the return air.
Questions About Your Coil
If a technician finds a refrigerant leak in a copper coil, ask whether formicary corrosion could be the cause and what it would mean for the repair. Regular maintenance gives us the chance to inspect the coil, check for leaks and talk through anything in your home that could be a factor.
If you have a question about this page or about a system we installed, please contact us and our team will be glad to help.