Upon air handler inspection found no dust dirt or biological growth in unit. Evaporator coil and pan are clear. Unit had no float switch installed. Secondary drain pan was dirty with insulation trash and dirt. Installed safety switch on unit and secondary switch on the drain pan. Vacuumed secondary pan. Checked refrigerant pressures and temperatures. Took supply and return temperature split. Checked capacitor And took compressor amp draw. Unable to wash condensing unit due to the weather. System is running well at this time.