Arrived on site to perform spring tune up on a 1996 lennox unit. Condenser located in back yard. Furnace and Evaporator coil located in attic. Client state upstairs isn’t getting as good airflow as down stairs. Washed condenser inside and out. Unit really dirty. Primary is burnt up and should be replaced. Secondary motor control is good but is boarder line almost out of range on compressor side. Fan motor is bad and over amping and advised could fail at any time. Compressor start up are high but in range. Run amps are almost at max amps pulling 24 and max rated at 26.9. Advised compressor is on borrowed time and could fail due to age and working hard. Pressure are good and cooling home at 20 degrees. Filter were dirty and replaced. Blower blower unable to access and could be dirty due to filters dirty. Motor pulling high amps. Evaporator coil is dirty and debris. Drain lines due have dust and debris and no overflow safety switches. Overall found system is restricted of airflow and i