Performed a 3 commercial spring maintenance ( gas). Tasks performed. 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 refrigerant pressures. 7. Checked compressor amp draw. 8. Checked condenser fan motor amp draw. 9. Inspected / replaced return filter. 10. Inspected return plenum for debris/ dirty,,,return plenum on unit #2 is extremely dirty,, needs to be clean as soon as possible. 11. Inspected evaporator coil,,evaporator coil on units #2,3 are very dirty,, they need to be cleaned as soon a s possible,, they are not allowing enough airflow inside the building. 12. Inspected blower motor/ blower wheel,,,unit #2 needs to be cleaned as soon possible it’s extremely dirty ,,,belts need to be replaced as well they present signs of tear and wear. 13. Checked blower amp draw. 14. Measured temperature differentia