CAD/CAM HERO, LLC invests significant time and expense to visually inspect and function test every CEREC unit we offer for sale. This ensures that our CEREC listings are as accurate as possible and you receive a 100% functional system (unless otherwise described). We continue to stand behind our products with a 30-day parts and labor warranty starting from the day you receive your CEREC. Simply e-mail your claim to firstname.lastname@example.org within 30 days from confirmed delivery to start your claim. Please do not open a dispute with your credit card company or PayPal as this limits our ability to respond to your claim. This parts and labor warranty does not cover accidental damage or cameras/lenses. If the CEREC system is still covered under the original factory warranty, then repairs need to be sought under the factory warranty first.