Dawang fans After-sales service: The whole Dawang industrial ceiling fan guaranteed for three years,structural components for ten years (except man-made damage). From the acceptance report date, all damages caused by normal use shall be repaired free of charge by the manufacturer. After receiving notification, after-sale stuff shall respond within 12 hours, if it can't be solved online, the suffer shall arrive the site within 24 hours. The notification issued in telephone or fax. If failed to arrive the site and not deal the problems in stipulated time, the manufacturer shall be responsible for the customers loss