Classic Auto Air warrants that the products are free from defects in material and workmanship under normal use, driving conditions and service for a period after the invoice date as follows: new parts – 1 year; “Perfect Fit” complete systems – 3 years; all other kits and partial systems – 1 year. Humvee systems and related parts 1 year. Our only obligation under this warranty is to repair or replace, at our option, the defective part. If you suspect a part is defective, you must call us immediately or void the warranty. If you get an RGA (returned goods authorization) number and include a copy of the original invoice. At our discretion, we may require suspected defective part to be returned for diagnostics, labor may be charged for parts returned that are found not to be defective. You must properly package the item and include a written explanation of the problem. We are not responsible for labor, loss of use, or any other incidental or consequential damages or expenses of any kind. This warranty is voided by misuse, alteration, improper installation, accident or neglect, including installation of any refrigerant or additive other than R 134a. Damaged parts purchased from Classic Auto Air caused from non-purchased parts are not covered under this warranty. All warranty related international orders; shipping charges are the responsibility of the buyer, Classic Auto Air will warranty qualified defective parts only. THIS WARRANTY IS EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTYS, ORAL AND WRITTEN, INCLUDING MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.