Poor service. No customer service issue follow-up from upper level management at all. AHS customer since 2006. May 2018 used our AHS warranty policy to make AC repairs on AC unit. 9-4-19 AC failed we called AHS they sent tech for check up today 9-12-19. Tech determined that when repairs were made in May 2018 that tech from Total Air Care installed non compatable parts for the unit which led to this failure 9-4-19. We expect AHS to expedite getting correct parts installed so that weeks go by until next scheduled visit which has not been made as of today by AHS/Total Air Care. We also expect AHS to provide financial service recovery for ALL charges we expect them to charge us for like refrigerant replacement.