Upon arrival found downstairs system operating normal, found contactor burnt, recommend replacing. reusable filter doing poor job at filtering and starting to see signs on dust and microbial growth. Upstairs system coil very dirty with bacterial growth, restricting air flow and forcing system to work harder. Recommend replacing reusable filters with disposable at a minimum but recommend using high quality air filtration and air purification. Indoor coil needs to be cleaned and would recommend also having duct cleaned. Contactor to be covered under manufacturer warranty. Customer would like copy of warranty information from office. Customer would like to have coil cleaned and contactor replaced pending further discount from office.