CCC RTU tuneup. A/C Air conditioner preventive maintenance Replace filters, Check contactors and capacitors, check all motors including compressor. Check refrigerant charge and temps in system. Pull covers and clean condenser coil. All checks good at this time. Lennox Filter (4) 16x25x2 replaced Age of unit: 2013 Note, reinspected heat exchanger, still recommend replacing due to corrosion and improper combustion levels. We now offer generator installation, service, and repair Have a great summer, Dave