Performed AC maintenance on a Lennox condenser. Units cooling temperature split is 15 degrees. One duct run had a major repair in it that was temporarily fixed today. Indoor amp draws are ok. Blower wheel is clean. Outdoor unit was chemically washed. Compressor start and run amps are in range. Fan motor is reading ok. Refrigerant levels are high. Customer has another company that services the system for cheaper. System was running at end of appointment.