Cleaned and checked air conditioner. Checked drain. Checked voltage and amperage draw of motors. Tested capacitors. Checked Freon level. Checked filter: pleated: .52” drop. Compressor: 7.65A . Condenser fan:0.82A . Blower: 4.9A, H . ambient: 82 . liquid line: 86, dirty . metering device: piston . Suction pressure: 73. Return air: 74.5 . supply air: 50.5 . wet bulb: 60 . Split and washed condenser coil. Rem. Suction: 73. Suction line: 43. Air filter is restricting airflow. Furnace Has only 16 x 16 opening for air filter. Also has restrictive return air ducting and restrictive supply air ducting. Total external static pressure: 1.04 inches water column. replaced filter with fiberglass tape for better airflow. Recommend using fiberglass filters only. Customer would like estimate to install larger air-conditioner and ductwork. Sean schedule for 10 AM August 23.