Yuanyin equipment provides nationwide after-sales service. Free replacement of faulty components is offered within the warranty period (non-quality issues such as man-made damage, improper use, unauthorized disassembly, natural disasters are not covered). Travel expenses for on-site service in remote areas may be charged accordingly. Lifetime free remote technical consultation and troubleshooting guidance are provided beyond the warranty period; technical service fees and parts fees will apply for on-site repair and parts replacement.