Performed diagnostic on 6yr old carrier main floor unit with zones, upon arrival customer stated unit was cooling, checked both tstats, already in ac mode but nothing was running, upon goin in basement found secondary drain pan full of water causing float switch to activate, removed wet switch and unit turned on, checked filter, recommend replacing, customer stated he will order from Amazon, checked blower wheel, condensation pump, found pump not pumping at all causing water to drain to secondary drain pan, recommend replacing condensation pump, customer declined stated he can get it cheaper at Home Depot, inspected outdoor unit, checked capacitor, contactor, pressures, temp split, pressure checked ok , recommend home care to have system checked during seasons to prevent breakdowns, also recommend high power uv light, customer declined a L recommendation at time, stated he will think about home care