I agree with UR193 if the warranty card was lost or somehow not included go on line get the phone number and call it in, a tech will take the info on the phone and register it that way (make sure you have either the box or the pot near you at the time). That happened to me with a weed eater, it took some searching to find the phone under all the different pages with the contact us (usually on the bottom of the page) before finally getting the phone number but after that it was smooth sailing!