2020 Lennox gas furnace Checked all electrical connections Changed customer provided filter Drain was clear and draining, poured a gallon of water down Blower motor and wheel were acceptable Evaporator coil was acceptable 2020 Lennox Straight electric Dual run capacitor was within manufacturers range Electrical connections were acceptable Refrigerant levels were acceptable at this time Condenser coil was compacted with dust and debris Fan motor and blades were acceptable Cleaned debris out of the bottom Washed coil from inside out Waxed top of unit