Shenyang Aost Ventilation Equipment Co., Ltd. adheres to the principle of "customer first" as its after-sales service work. Through years of after-sales service work, we have continuously summarized our experience, strengthened the quality and intensity of our service work, and formed a complete and high-quality after-sales service system, eliminating users' worries.

1、 Service measures and response time

1) Our company has an elite after-sales service team consisting of several skilled, conscientious, and enthusiastic professional technicians.

2) Our company has directly affiliated offices in Beijing, Tianjin, Henan, Shaanxi, Liaoning, Jilin, Heilongjiang, Chifeng, and other places, providing excellent services to users with a 24-hour duty system. Our service network has spread throughout the country.

3) Our company has opened a 24-hour dedicated after-sales service hotline 365 days a year, with a service system and corresponding support capabilities that can be accessed at any time. When there are problems during use, we guarantee that Liaoning Province will respond within 8 hours upon receiving customer service requests, and maintenance personnel will arrive at the site within 24 hours. When there is no need to replace parts, we guarantee to troubleshoot within 24 hours. When parts need to be replaced, we guarantee to troubleshoot within 72 hours. After sales outside the province, communicate relevant issues with the site within 8 hours, and arrive at the site within 72 hours to solve the problem. Continuously follow up on the on-site situation until the fault is resolved and normal service is fully restored. Ensure fast and high-quality service for the demand side.