2020 American Standard gas furnace Checked and tightened all electrical connections Changed Customer provided filter Drain was clear and draining Blower motor and wheel were acceptable Evaporator coil was acceptable Supply plenum has biological growth build up 2020 American Standard straight electric Checked and tightened all electrical connections Dual run capacitor was within manufacture range Primary electrical unit was acceptable Refrigerant levels were acceptable at this time Fan blades and motor were acceptable Condenser coil was acceptable Washed Condenser coil from inside out Cleared debris out of unit Waxed top of unit Recommended Uv system for biological growth inside supply system and mounting furnace plug to a secure location