1. Visually inspected condenser coil for debris/ dirty. 2. Inspected condenser fan motor. 3. Inspected condenser fan blades. 4. Inspected/ cleaned wiring connections. 5. Tested compressor/ condenser fan motor capacitor. 6. Checked compressor amp draw. 7. Checked condenser fan motor amp draw. 8. Inspected / replaced return filter. 9. Inspected return plenum for debris/ dirty. 10. Inspected evaporator coil. 11. Inspected blower motor/ blower wheel. Pretty dirty, but amps were within range. 12. Checked blower amp draw. 13. Measured temperature differential from supply to return. 20 degrees measured. 14. Inspected drain lines and found none unit drains onto roof 16. Replaced and dated filters 17. Inspected drive belts and found them to both be in good condition. Noticed motor was wobbling a little bit on front office unit. However there appeared to be no damage on the belt and motor amps were within range. Noted no drain lines. Units drain onto roof.