Once an authorized Kohler service technician from Princeton Air completes a post-installation Warranty Start-Up at your home & the technician completes a checklist to make sure the system is properly installed, the information is brought back to our offices, where one of our Administrative Specialists will enter all necessary information onto the Kohler Warranty site. Then, instead of your warranty beginning on the date the generator left the factory, or the day the generator is purchased from Princeton Air, it begins on the day Princeton Air submits your generator system's details to the Warranty Start-Up program. This process officially moves the warranty start date for your generator to the day your generator is installed.