Hello, There is a lifetime warranty on the fan motor, if there is at any time a problem with the motor the manufacturer will replace it. The reason why it is called Limited Lifetime is because on the fan parts such as blades, lights, finish etc. the warranty is limited to 1 year from date of purchase. You can view the full details of the warranty on the manufacturers website at http://matthewsfanco.com/uploads/images/donaire/Donaire-InstallationGuideB.pdf page #13. Thank you, Shaya