All KAIHUA Product users will enjoy the hassle free, every of our product is covered at least 1000 hours operation hours/ 12 month of warranty service. Our service department will be full-responsibly and fast support to every of you technical issues, and provide solution to repair or replace your generator. please call your local distributor or call our office: +86 523 86089281 freely for service support. (Available time: 8:00~17:00 from Monday to Saturday).