There is no need to register the power head for the AIRBELT K and C canisters. However, if you purchase a power head as a stand alone item for central vacuuming or as a replacement power head, then you will need to register the serial number.
This retailer is Authorized, so your warranty has been extended to 10 years motor, 10 years non-wear parts, and 7 years labor.
This retailer is not Authorized, so your warranty cannot be extended beyond 7 years motor, 5 years non-wear parts, and 5 years labor. Please check the accuracy of your Dealer Code and store location (or website).