You may be reimbursed if you bought an uncoated copper tube from Lennox, Aire-Flo, Armstrong Air, AirEase, Concord or Ducane.


It will be the result of a settlement of a class action lawsuit against Lennox, a major provider of climate control solutions for the heating, air conditioning and refrigeration markets.


Lennox denies all of the claims in the lawsuit, but has agreed to the settlement to avoid the cost and risk of further litigation over the evaporator coil, which is part of an air conditioning system or heat pump system in the cooling mode.


The settlement applies to all U.S. residents who purchased the tube between Oct. 29, 2007 and July 9, 2015 for installation in a house, condominium unit, apartment unit, or other residential dwelling in the United States. Original coils may have been purchased separately, as part of an air handler, or they may have been included as part of a packaged unit.




The settlement provides an Expanded Warranty and Reimbursement Program to Settlement Class Members that submit a timely and valid Claim Form. The Expanded Warranty and Reimbursement Program includes:

  • A one-time $75 service rebate;
  • An aluminum tube or coated copper tube Replacement Coil after the first coil replacement;
  • Up to $550 as a retroactive reimbursement for labor and refrigerant charges for the replacement of the Original Coil in the event there is more than one coil replacement; and
  • Up to $550 as reimbursement for labor and refrigerant charges for each uncoated copper tube coil replacement after the first replacement.

Expanded warranty and reimbursement program benefits require replacement of an original coil due to a coil leak within five years after installation and will vary by individual settlement class members.


Lennox was accused of using deficient materials to manufacture the coils, which led to formicary corrosion. Formicary corrosion is a chemical reaction (from copper and organic compounds) that causes the coils to become thin and full of tiny holes.  These tiny holes lead to refrigerant leakage. Loss of refrigerant means the air conditioner cannot effectively release cold air.


The class action alleges that Lennox would fix the issue by replacing the lost refrigerant, not by replacing the coil itself.


The class action lawsuit claim Lennox did not inform consumers of the defect, even though the company knew of it.


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